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fmr:TH7Member 2026-03-31 0000880195 fmr:C000242568Member fmr:TH8Member 2026-03-31 0000880195 2025-03-31 2026-03-31 iso4217:USD pure shares N-CSR false 0000880195 N-1A Fidelity Aberdeen Street Trust 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity® Sustainable Target Date 2015 Fund FSVNX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2015 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>44<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 44 0.0042 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2015 Fund $10,000 $10,805 $11,336 $12,456 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2015 Fund</span> 10000 10805 11336 12456 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2015 Fund 9.89% 7.90% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0989 0.0790 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity Advisor® Sustainable Target Date 2065 Fund Class I FTHBX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,963 $12,541 $15,063 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11963 12541 15063 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.10% 15.23% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2010 0.1523 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity Advisor® Sustainable Target Date 2030 Fund Class A FSXBX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>76<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.71<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 76 0.0071 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,603 $11,073 $12,605 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10603 11073 12605 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   7.29% 8.34% Class A (without 5.75% sales charge) 13.84% 10.58% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0729 0.0834 0.1384 0.1058 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity® Sustainable Target Date 2045 Fund Class K6 FSYVX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,977 $12,587 $15,147 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11977 12587 15147 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.34% 15.45% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2034 0.1545 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity Advisor® Sustainable Target Date 2025 Fund Class M FSWSX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>100<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.94<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 100 0.0094 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,673 $11,125 $12,501 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10673 11125 12501 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   8.44% 8.03% Class M (without 3.50% sales charge) 12.37% 9.37% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0844 0.0803 0.1237 0.0937 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity® Sustainable Target Date 2015 Fund Class K FSVZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>34<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 34 0.0032 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $10,809 $11,361 $12,495 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 10809 11361 12495 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 9.99% 8.01% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0999 0.0801 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity Advisor® Sustainable Target Date Retirement Fund Class M FSUHX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>94<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.91<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 94 0.0091 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,079 $10,531 $11,238 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10079 10531 11238 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   2.97% 4.12% Class M (without 3.50% sales charge) 6.71% 5.41% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0297 0.0412 0.0671 0.0541 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity Advisor® Sustainable Target Date 2010 Fund Class I FSVGX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0041 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $10,639 $11,181 $12,105 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 10639 11181 12105 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 8.27% 6.83% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0827 0.0683 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity Advisor® Sustainable Target Date 2045 Fund Class Z FSYSX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,970 $12,559 $15,102 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11970 12559 15102 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.24% 15.33% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2024 0.1533 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity Advisor® Sustainable Target Date 2070 Fund Class M FRCYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $9,882 $11,806 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 9882 11806 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.28% 9.95% Class M (without 3.50% sales charge) 19.46% 12.21% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1528 0.0995 0.1946 0.1221 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity Advisor® Sustainable Target Date 2065 Fund Class C FTGYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,852 $12,306 $14,626 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11852 12306 14626 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.85% 14.06% Class C 18.85% 14.06% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1785 0.1406 0.1885 0.1406 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity Advisor® Sustainable Target Date 2015 Fund Class A FSVOX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>70<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.67<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 70 0.0067 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,157 $10,637 $11,655 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10157 10637 11655 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   3.26% 5.44% Class A (without 5.75% sales charge) 9.56% 7.62% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0326 0.0544 0.0956 0.0762 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity Advisor® Sustainable Target Date 2030 Fund Class M FSXDX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>103<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.96<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 103 0.0096 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,828 $11,282 $12,817 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10828 11282 12817 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   9.63% 8.96% Class M (without 3.50% sales charge) 13.60% 10.32% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0963 0.0896 0.1360 0.1032 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity® Sustainable Target Date 2030 Fund FSXAX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2030 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.46<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 49 0.0046 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2030 Fund $10,000 $11,275 $11,805 $13,469 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2030 Fund</span> 10000 11275 11805 13469 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2030 Fund 14.09% 10.85% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1409 0.1085 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity Advisor® Sustainable Target Date 2060 Fund Class I FSZYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,954 $12,543 $15,059 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11954 12543 15059 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.06% 15.22% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2006 0.1522 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity Advisor® Sustainable Target Date 2010 Fund Class C FSVCX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>146<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 146 0.0141 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $10,543 $10,966 $11,755 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 10543 10966 11755 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 6.20% 5.75% Class C 7.20% 5.75% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0620 0.0575 0.0720 0.0575 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity® Sustainable Target Date 2020 Fund Class K FSWMX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>35<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.33<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 35 0.0033 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $10,974 $11,516 $12,854 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 10974 11516 12854 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 11.62% 9.08% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1162 0.0908 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity Advisor® Sustainable Target Date 2010 Fund Class M FSVEX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>94<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.91<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 94 0.0091 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,225 $10,690 $11,508 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10225 10690 11508 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   3.88% 4.98% Class M (without 3.50% sales charge) 7.65% 6.28% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0388 0.0498 0.0765 0.0628 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity® Sustainable Target Date 2035 Fund FSXKX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2035 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>51<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.47<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 51 0.0047 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2035 Fund $10,000 $11,548 $12,112 $14,027 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2035 Fund</span> 10000 11548 12112 14027 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2035 Fund 15.81% 12.42% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1581 0.1242 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity Advisor® Sustainable Target Date 2035 Fund Class M FSXOX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>105<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.97<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 105 0.0097 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,092 $11,573 $13,344 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11092 11573 13344 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   11.27% 10.49% Class M (without 3.50% sales charge) 15.30% 11.87% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1127 0.1049 0.1530 0.1187 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity® Sustainable Target Date 2065 Fund Class K FTHGX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,969 $12,558 $15,106 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11969 12558 15106 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.28% 15.34% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2028 0.1534 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity® Sustainable Target Date 2055 Fund FSZHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2055 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2055 Fund $10,000 $11,960 $12,539 $15,064 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2055 Fund</span> 10000 11960 12539 15064 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2055 Fund 20.14% 15.23% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2014 0.1523 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity® Sustainable Target Date 2040 Fund Class K FSYFX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.38<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 42 0.0038 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,869 $12,466 $14,800 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11869 12466 14800 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 18.72% 14.53% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1872 0.1453 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity Advisor® Sustainable Target Date Retirement Fund Class C FSUFX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>145<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 145 0.0141 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $10,396 $10,815 $11,474 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 10396 10815 11474 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 5.09% 4.87% Class C 6.09% 4.87% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0509 0.0487 0.0609 0.0487 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity Advisor® Sustainable Target Date 2065 Fund Class Z FTHDX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,969 $12,558 $15,101 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11969 12558 15101 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.25% 15.33% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2025 0.1533 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity® Sustainable Target Date 2070 Fund Class K6 FRCVX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $10,288 $12,388 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 10288 12388 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.42% 13.02% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2042 0.1302 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity® Sustainable Target Date 2045 Fund FSYHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2045 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2045 Fund $10,000 $11,953 $12,538 $15,055 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2045 Fund</span> 10000 11953 12538 15055 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2045 Fund 20.08% 15.21% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2008 0.1521 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity Advisor® Sustainable Target Date 2040 Fund Class Z FSYDX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.38<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 42 0.0038 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,869 $12,466 $14,802 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11869 12466 14802 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 18.74% 14.53% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1874 0.1453 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity Advisor® Sustainable Target Date 2055 Fund Class Z FSZNX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,966 $12,562 $15,098 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11966 12562 15098 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.19% 15.32% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2019 0.1532 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity® Sustainable Target Date Retirement Fund Class K FSUOX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0031 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $10,494 $11,039 $11,850 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 10494 11039 11850 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 7.34% 6.05% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0734 0.0605 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity Advisor® Sustainable Target Date 2035 Fund Class C FSXNX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>158<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.47<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 158 0.0147 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,451 $11,883 $13,627 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11451 11883 13627 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 13.68% 11.30% Class C 14.68% 11.30% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1368 0.1130 0.1468 0.1130 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity Advisor® Sustainable Target Date 2015 Fund Class Z FSVWX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>34<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 34 0.0032 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $10,809 $11,361 $12,495 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 10809 11361 12495 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 9.99% 8.01% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0999 0.0801 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity Advisor® Sustainable Target Date 2070 Fund Class C FRDCX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $10,204 $12,123 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 10204 12123 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.81% 11.63% Class C 18.81% 11.63% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1781 0.1163 0.1881 0.1163 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity Advisor® Sustainable Target Date 2045 Fund Class I FSYQX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,963 $12,544 $15,064 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11963 12544 15064 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.09% 15.23% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2009 0.1523 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity Advisor® Sustainable Target Date 2045 Fund Class C FSYOX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,853 $12,309 $14,633 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11853 12309 14633 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.88% 14.08% Class C 18.88% 14.08% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1788 0.1408 0.1888 0.1408 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity® Sustainable Target Date 2025 Fund FSWOX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2025 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>47<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.44<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 47 0.0044 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2025 Fund $10,000 $11,109 $11,643 $13,138 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2025 Fund</span> 10000 11109 11643 13138 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2025 Fund 12.84% 9.90% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1284 0.0990 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity Advisor® Sustainable Target Date 2040 Fund Class I FSYBX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>53<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.48<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 53 0.0048 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,862 $12,436 $14,766 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11862 12436 14766 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 18.74% 14.44% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1874 0.1444 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity Advisor® Sustainable Target Date 2060 Fund Class Z FTDLX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,971 $12,563 $15,101 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11971 12563 15101 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.21% 15.33% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2021 0.1533 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity Advisor® Sustainable Target Date 2050 Fund Class A FSYYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>81<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 81 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,248 $11,765 $14,088 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11248 11765 14088 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.85% 12.59% Class A (without 5.75% sales charge) 19.74% 14.92% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1285 0.1259 0.1974 0.1492 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity Advisor® Sustainable Target Date 2010 Fund Class A FSUZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>69<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.66<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 69 0.0066 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,002 $10,489 $11,322 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10002 10489 11322 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   1.73% 4.39% Class A (without 5.75% sales charge) 7.94% 6.55% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0173 0.0439 0.0794 0.0655 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity® Sustainable Target Date 2020 Fund Class K6 FSWNX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>24<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.23<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 24 0.0023 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $10,982 $11,540 $12,895 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 10982 11540 12895 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 11.74% 9.19% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1174 0.0919 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity® Sustainable Target Date 2015 Fund Class K6 FSWBX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>23<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.22<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 23 0.0022 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $10,826 $11,382 $12,532 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 10826 11382 12532 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 10.10% 8.12% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1010 0.0812 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity Advisor® Sustainable Target Date 2035 Fund Class A FSXLX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>78<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.72<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 78 0.0072 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,861 $11,361 $13,122 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10861 11361 13122 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   8.85% 9.85% Class A (without 5.75% sales charge) 15.50% 12.13% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0885 0.0985 0.1550 0.1213 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity® Sustainable Target Date 2065 Fund FTGPX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2065 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2065 Fund $10,000 $11,953 $12,533 $15,057 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2065 Fund</span> 10000 11953 12533 15057 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2065 Fund 20.14% 15.21% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2014 0.1521 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity® Sustainable Target Date 2050 Fund Class K6 FSZGX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,976 $12,588 $15,144 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11976 12588 15144 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.31% 15.44% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2031 0.1544 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity Advisor® Sustainable Target Date 2025 Fund Class A FSWQX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>73<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.69<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 73 0.0069 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,452 $10,922 $12,294 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10452 10922 12294 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   6.09% 7.41% Class A (without 5.75% sales charge) 12.57% 9.63% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0609 0.0741 0.1257 0.0963 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity Advisor® Sustainable Target Date 2035 Fund Class I FSXQX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>51<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.47<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 51 0.0047 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,549 $12,102 $14,018 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11549 12102 14018 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 15.83% 12.40% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1583 0.1240 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity Advisor® Sustainable Target Date 2040 Fund Class A FSXWX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>80<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.73<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 80 0.0073 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,151 $11,665 $13,810 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11151 11665 13810 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   11.58% 11.81% Class A (without 5.75% sales charge) 18.38% 14.13% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1158 0.1181 0.1838 0.1413 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity Advisor® Sustainable Target Date 2060 Fund Class A FSZTX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>82<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 82 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,249 $11,760 $14,094 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11249 11760 14094 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.95% 12.61% Class A (without 5.75% sales charge) 19.85% 14.94% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1295 0.1261 0.1985 0.1494 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity® Sustainable Target Date 2045 Fund Class K FSYUX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,970 $12,559 $15,102 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11970 12559 15102 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.24% 15.33% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2024 0.1533 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity Advisor® Sustainable Target Date 2015 Fund Class I FSVUX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>44<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 44 0.0042 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $10,803 $11,344 $12,465 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 10803 11344 12465 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 9.88% 7.92% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0988 0.0792 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity Advisor® Sustainable Target Date 2015 Fund Class M FSVTX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>96<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.92<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 96 0.0092 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,383 $10,840 $11,856 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10383 10840 11856 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   5.54% 6.07% Class M (without 3.50% sales charge) 9.37% 7.38% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0554 0.0607 0.0937 0.0738 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity Advisor® Sustainable Target Date 2055 Fund Class I FSZMX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,959 $12,539 $15,057 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11959 12539 15057 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.08% 15.21% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2008 0.1521 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity Advisor® Sustainable Target Date 2020 Fund Class A FSWEX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>72<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.68<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 72 0.0068 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $10,310 $10,782 $11,996 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 10310 10782 11996 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   4.86% 6.50% Class A (without 5.75% sales charge) 11.26% 8.70% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0486 0.0650 0.1126 0.0870 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity Advisor® Sustainable Target Date 2020 Fund Class M FSWHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>98<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.93<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 98 0.0093 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $10,533 $10,988 $12,192 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 10533 10988 12192 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   7.07% 7.10% Class M (without 3.50% sales charge) 10.96% 8.43% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0707 0.0710 0.1096 0.0843 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity Advisor® Sustainable Target Date 2030 Fund Class I FSXEX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.46<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 49 0.0046 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,266 $11,802 $13,475 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11266 11802 13475 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 14.18% 10.87% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1418 0.1087 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity Advisor® Sustainable Target Date 2050 Fund Class C FSYZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,852 $12,299 $14,631 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11852 12299 14631 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.96% 14.07% Class C 18.96% 14.07% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1796 0.1407 0.1896 0.1407 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity® Sustainable Target Date 2060 Fund Class K6 FTGNX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,978 $12,588 $15,143 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11978 12588 15143 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.30% 15.44% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2030 0.1544 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity Advisor® Sustainable Target Date 2050 Fund Class M FSZAX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,490 $11,989 $14,322 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11490 11989 14322 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.27% 13.23% Class M (without 3.50% sales charge) 19.45% 14.64% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1527 0.1323 0.1945 0.1464 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity® Sustainable Target Date 2010 Fund Class K6 FSVMX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>22<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.21<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 22 0.0021 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $10,661 $11,215 $12,166 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 10661 11215 12166 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 8.49% 7.02% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0849 0.0702 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity Advisor® Sustainable Target Date 2025 Fund Class I FSWUX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>47<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.44<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 47 0.0044 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,113 $11,639 $13,140 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11113 11639 13140 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 12.89% 9.91% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1289 0.0991 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity Advisor® Sustainable Target Date 2010 Fund Class Z FSVHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0031 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $10,655 $11,201 $12,139 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 10655 11201 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 8.38% 6.94% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0838 0.0694 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity Advisor® Sustainable Target Date 2030 Fund Class C FSXCX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>156<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.46<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 156 0.0146 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,168 $11,580 $13,090 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11168 11580 13090 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 12.04% 9.76% Class C 13.04% 9.76% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1204 0.0976 0.1304 0.0976 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity Advisor® Sustainable Target Date 2055 Fund Class A FSZJX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>82<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 82 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,247 $11,763 $14,093 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11247 11763 14093 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.92% 12.60% Class A (without 5.75% sales charge) 19.81% 14.93% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1292 0.1260 0.1981 0.1493 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity® Sustainable Target Date 2065 Fund Class K6 FTHHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,977 $12,583 $15,149 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11977 12583 15149 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.39% 15.45% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2039 0.1545 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity® Sustainable Target Date 2010 Fund FSUYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2010 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0041 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2010 Fund $10,000 $10,639 $11,176 $12,101 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2010 Fund</span> 10000 10639 11176 12101 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2010 Fund 8.28% 6.82% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0828 0.0682 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity® Sustainable Target Date Retirement Fund FSUDX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date Retirement Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0041 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date Retirement Fund $10,000 $10,488 $11,023 $11,811 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date Retirement Fund</span> 10000 10488 11023 11811 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date Retirement Fund 7.15% 5.93% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0715 0.0593 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity Advisor® Sustainable Target Date 2045 Fund Class M FSYPX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,491 $11,983 $14,323 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11491 11983 14323 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.34% 13.23% Class M (without 3.50% sales charge) 19.52% 14.64% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1534 0.1323 0.1952 0.1464 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity Advisor® Sustainable Target Date 2035 Fund Class Z FSXRX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>40<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.37<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 40 0.0037 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,556 $12,128 $14,065 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11556 12128 14065 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 15.97% 12.52% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1597 0.1252 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity® Sustainable Target Date 2030 Fund Class K6 FSXJX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>28<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 28 0.0026 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,287 $11,854 $13,551 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11287 11854 13551 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 14.31% 11.08% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1431 0.1108 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity Advisor® Sustainable Target Date 2025 Fund Class Z FSWVX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.34<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 36 0.0034 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,120 $11,659 $13,173 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11120 11659 13173 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 12.98% 10.00% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1298 0.1000 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity® Sustainable Target Date 2070 Fund Class K FRCRX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $10,282 $12,362 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 10282 12362 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.23% 12.88% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2023 0.1288 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity® Sustainable Target Date 2035 Fund Class K6 FSXUX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 29 0.0027 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,573 $12,155 $14,109 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11573 12155 14109 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 16.07% 12.65% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1607 0.1265 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity® Sustainable Target Date 2070 Fund FRCQX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2070 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2070 Fund $10,000 $10,280 $12,345 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2070 Fund</span> 10000 10280 12345 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2070 Fund 20.09% 12.79% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2009 0.1279 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity Advisor® Sustainable Target Date 2070 Fund Class Z FRDEX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $10,282 $12,358 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 10282 12358 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.20% 12.86% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2020 0.1286 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity Advisor® Sustainable Target Date Retirement Fund Class Z FSULX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0031 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $10,495 $11,040 $11,851 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 10495 11040 11851 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 7.34% 6.05% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0734 0.0605 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity Advisor® Sustainable Target Date 2065 Fund Class M FTGZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,491 $11,983 $14,322 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11491 11983 14322 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.34% 13.23% Class M (without 3.50% sales charge) 19.52% 14.64% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1534 0.1323 0.1952 0.1464 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2065 Fund Fidelity Advisor® Sustainable Target Date 2065 Fund Class A FTGUX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2065 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>82<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 82 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,248 $11,759 $14,087 Fidelity Sustainable Target Date 2065 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11248 11759 14087 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2065 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.91% 12.59% Class A (without 5.75% sales charge) 19.80% 14.92% Fidelity Sustainable Target Date 2065 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1291 0.1259 0.1980 0.1492 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>6,854,819</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>25,141</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 6854819 5 25141 0.20         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2045 Fund Fidelity Advisor® Sustainable Target Date 2045 Fund Class A FSYLX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2045 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>81<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 81 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $11,249 $11,762 $14,094 Fidelity Sustainable Target Date 2045 Composite Index℠ $10,000 $11,842 $12,567 $14,932 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 11249 11762 14094 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2045 Composite Index℠</span> 10000 11842 12567 14932 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.93% 12.60% Class A (without 5.75% sales charge) 19.82% 14.94% Fidelity Sustainable Target Date 2045 Composite Index℠ 18.82% 14.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1293 0.1260 0.1982 0.1494 0.1882 0.1488 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>14,333,521</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">7</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>51,534</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 14333521 7 51534 0.27         Domestic Equity Funds 51.6 International Equity Funds 41.2 Bond Funds 7.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 51.6               International Equity Funds - 41.2          Bond Funds - 7.2                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.516 0.412 0.072 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 51.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.0   Fidelity Series Sustainable Emerging Markets Fund 13.2   Fidelity Series Long-Term Treasury Bond Index Fund 5.7   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.9   Fidelity Series Sustainable Investment Grade Bond Fund 0.4   Fidelity Series International Developed Markets Bond Index Fund 0.2     100.0   0.516 0.280 0.132 0.057 0.009 0.004 0.002 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity Advisor® Sustainable Target Date 2055 Fund Class M FSZLX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,490 $11,990 $14,322 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11490 11990 14322 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.27% 13.23% Class M (without 3.50% sales charge) 19.45% 14.64% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1527 0.1323 0.1945 0.1464 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity® Sustainable Target Date 2020 Fund FSWDX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2020 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>46<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 46 0.0043 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2020 Fund $10,000 $10,959 $11,498 $12,815 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2020 Fund</span> 10000 10959 11498 12815 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2020 Fund 11.45% 8.96% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1145 0.0896 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity® Sustainable Target Date 2040 Fund FSXVX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2040 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>53<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.48<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 53 0.0048 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2040 Fund $10,000 $11,859 $12,438 $14,763 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2040 Fund</span> 10000 11859 12438 14763 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2040 Fund 18.70% 14.43% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1870 0.1443 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity® Sustainable Target Date 2060 Fund FSZSX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2060 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2060 Fund $10,000 $11,964 $12,538 $15,064 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2060 Fund</span> 10000 11964 12538 15064 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2060 Fund 20.15% 15.23% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2015 0.1523 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity® Sustainable Target Date 2055 Fund Class K FSZQX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,966 $12,562 $15,098 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11966 12562 15098 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.19% 15.32% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2019 0.1532 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity Advisor® Sustainable Target Date 2060 Fund Class M FSZWX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>109<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.99<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 109 0.0099 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,493 $11,990 $14,326 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11493 11990 14326 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   15.30% 13.24% Class M (without 3.50% sales charge) 19.48% 14.65% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1530 0.1324 0.1948 0.1465 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity® Sustainable Target Date 2025 Fund Class K FSWYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.34<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 36 0.0034 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,120 $11,659 $13,173 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11120 11659 13173 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 12.98% 10.00% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1298 0.1000 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity Advisor® Sustainable Target Date 2040 Fund Class M FSXZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class M</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>107<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.98<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 107 0.0098 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class M $9,650 $11,394 $11,894 $14,045 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class M</span> 9650 11394 11894 14045 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class M (incl. 3.50% sales charge)   13.95% 12.47% Class M (without 3.50% sales charge) 18.09% 13.87% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1395 0.1247 0.1809 0.1387 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2035 Fund Fidelity® Sustainable Target Date 2035 Fund Class K FSXTX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2035 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>40<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.37<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 40 0.0037 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div><span style="font-size:12px;"> </span></div><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,556 $12,128 $14,062 Fidelity Sustainable Target Date 2035 Composite Index℠ $10,000 $11,483 $12,154 $13,964 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11556 12128 14062 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2035 Composite Index℠</span> 10000 11483 12154 13964 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 15.95% 12.52% Fidelity Sustainable Target Date 2035 Composite Index℠ 14.89% 12.24% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1595 0.1252 0.1489 0.1224 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,059,299</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>36,454</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12059299 8 36454 0.26         Domestic Equity Funds 36.8 International Equity Funds 31.6 Bond Funds 31.1 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 36.8               International Equity Funds - 31.6          Bond Funds - 31.1                          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.368 0.316 0.311 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 36.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 21.5   Fidelity Series Sustainable Investment Grade Bond Fund 17.9   Fidelity Series Sustainable Emerging Markets Fund 10.1   Fidelity Series Long-Term Treasury Bond Index Fund 5.4   Fidelity Series International Developed Markets Bond Index Fund 4.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 3.7   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.368 0.215 0.179 0.101 0.054 0.041 0.037 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity Advisor® Sustainable Target Date 2020 Fund Class I FSWJX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>45<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 45 0.0043 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $10,960 $11,491 $12,815 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 10960 11491 12815 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 11.52% 8.96% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1152 0.0896 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity Advisor® Sustainable Target Date 2050 Fund Class Z FSZCX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,969 $12,562 $15,105 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11969 12562 15105 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 20.24% 15.34% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2024 0.1534 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity Advisor® Sustainable Target Date 2040 Fund Class C FSXYX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>161<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.48<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 161 0.0148 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,752 $12,201 $14,345 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11752 12201 14345 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 16.58% 13.30% Class C 17.58% 13.30% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1658 0.1330 0.1758 0.1330 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity Advisor® Sustainable Target Date Retirement Fund Class A FSUEX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>68<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.66<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 68 0.0066 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $9,864 $10,340 $11,051 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 9864 10340 11051 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   0.73% 3.52% Class A (without 5.75% sales charge) 6.88% 5.66% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0073 0.0352 0.0688 0.0566 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity Advisor® Sustainable Target Date 2055 Fund Class C FSZKX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,849 $12,305 $14,632 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11849 12305 14632 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.91% 14.07% Class C 18.91% 14.07% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1791 0.1407 0.1891 0.1407 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity® Sustainable Target Date 2050 Fund FSYWX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-544-8544 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-544-8544 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2050 Fund</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Fidelity® Sustainable Target Date 2050 Fund $10,000 $11,951 $12,537 $15,053 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity® Sustainable Target Date 2050 Fund</span> 10000 11951 12537 15053 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Fidelity® Sustainable Target Date 2050 Fund 20.06% 15.20% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2006 0.1520 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-544-8544</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity® Sustainable Target Date 2060 Fund Class K FTGKX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,971 $12,563 $15,101 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11971 12563 15101 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.21% 15.33% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2021 0.1533 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity® Sustainable Target Date 2025 Fund Class K6 FSWZX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.24<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 26 0.0024 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,127 $11,682 $13,213 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11127 11682 13213 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 13.10% 10.12% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1310 0.1012 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity Advisor® Sustainable Target Date Retirement Fund Class I FSUJX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.41<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 42 0.0041 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $10,487 $11,022 $11,817 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 10487 11022 11817 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 7.21% 5.95% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0721 0.0595 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2015 Fund Fidelity Advisor® Sustainable Target Date 2015 Fund Class C FSVPX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2015 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>148<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.42<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 148 0.0142 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $10,708 $11,124 $12,110 Fidelity Sustainable Target Date 2015 Composite Index℠ $10,000 $10,811 $11,411 $12,477 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 10708 11124 12110 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2015 Composite Index℠</span> 10000 10811 11411 12477 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 7.87% 6.85% Class C 8.87% 6.85% Fidelity Sustainable Target Date 2015 Composite Index℠ 9.34% 7.96% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0787 0.0685 0.0887 0.0685 0.0934 0.0796 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,599,528</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,363</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1599528 9 5363 0.27         Bond Funds 59.4 International Equity Funds 19.4 Domestic Equity Funds 19.0 Short-Term Funds 2.2 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 59.4                          International Equity Funds - 19.4          Domestic Equity Funds - 19.0               Short-Term Funds - 2.2                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.594 0.194 0.190 0.022 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 34.8   Fidelity Series Sustainable U.S. Market Fund 19.0   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 13.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 12.9   Fidelity Series Sustainable Emerging Markets Fund 6.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 5.1   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 2.2   Fidelity Series Long-Term Treasury Bond Index Fund 1.6     100.0   0.348 0.190 0.130 0.129 0.064 0.051 0.050 0.022 0.016 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity Advisor® Sustainable Target Date 2070 Fund Class I FRDDX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $10,277 $12,336 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 10277 12336 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.04% 12.75% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2004 0.1275 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2010 Fund Fidelity® Sustainable Target Date 2010 Fund Class K FSVKX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2010 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0031 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Centry Std Light Cond';font-size:13px;color:#000000;font-style:normal;font-weight:normal;">•</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"><span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:16px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $10,655 $11,201 $12,139 Fidelity Sustainable Target Date 2010 Composite Index℠ $10,000 $10,666 $11,256 $12,139 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 10655 11201 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2010 Composite Index℠</span> 10000 10666 11256 12139 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 8.38% 6.94% Fidelity Sustainable Target Date 2010 Composite Index℠ 7.84% 6.94% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0838 0.0694 0.0784 0.0694 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,306,856</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,414</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">30<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1306856 9 4414 0.30         Bond Funds 64.5 International Equity Funds 16.7 Domestic Equity Funds 14.9 Short-Term Funds 3.9 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 64.5                          International Equity Funds - 16.7          Domestic Equity Funds - 14.9               Short-Term Funds - 3.9                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.645 0.167 0.149 0.039 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 36.3   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 19.3   Fidelity Series Sustainable U.S. Market Fund 14.9   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 11.1   Fidelity Series Sustainable Emerging Markets Fund 5.6   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Treasury Bill Index Fund 3.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 2.5   Fidelity Series Long-Term Treasury Bond Index Fund 1.4     100.0   0.363 0.193 0.149 0.111 0.056 0.050 0.039 0.025 0.014 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2040 Fund Fidelity® Sustainable Target Date 2040 Fund Class K6 FSYGX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2040 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.28<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 31 0.0028 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">® </span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,877 $12,482 $14,848 Fidelity Sustainable Target Date 2040 Composite Index℠ $10,000 $11,756 $12,470 $14,646 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11877 12482 14848 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2040 Composite Index℠</span> 10000 11756 12470 14646 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 18.96% 14.66% Fidelity Sustainable Target Date 2040 Composite Index℠ 17.45% 14.11% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1896 0.1466 0.1745 0.1411 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,041,072</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">8</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>57,343</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 17041072 8 57343 0.27         Domestic Equity Funds 45.6 International Equity Funds 37.5 Bond Funds 16.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 45.6               International Equity Funds - 37.5          Bond Funds - 16.5                          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.456 0.375 0.165 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 45.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 25.5   Fidelity Series Sustainable Emerging Markets Fund 12.0   Fidelity Series Sustainable Investment Grade Bond Fund 6.9   Fidelity Series Long-Term Treasury Bond Index Fund 5.9   Fidelity Series International Developed Markets Bond Index Fund 2.4   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.3   Fidelity Series Treasury Bill Index Fund 0.4     100.0   0.456 0.255 0.120 0.069 0.059 0.024 0.013 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2070 Fund Fidelity Advisor® Sustainable Target Date 2070 Fund Class A FRCWX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2070 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class A</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>82<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.74<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 82 0.0074 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE June 28, 2024 through March 31, 2026. Initial investment of $10,000 and the current sales charge was paid. Class A $9,425 $9,664 $11,576 Fidelity Sustainable Target Date 2070 Composite Index℠ $10,000 $10,385 $12,328 S&P 500® Index $10,000 $10,380 $12,229   2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class A</span> 9425 9664 11576 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2070 Composite Index℠</span> 10000 10385 12328 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 10380 12229 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class A (incl. 5.75% sales charge)   12.90% 8.72% Class A (without 5.75% sales charge) 19.79% 12.47% Fidelity Sustainable Target Date 2070 Composite Index℠ 18.71% 12.70% S&P 500® Index 17.80% 12.18% A   From June 28, 2024   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1290 0.0872 0.1979 0.1247 0.1871 0.1270 0.1780 0.1218 2024-06-28 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>2,514,889</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,790</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">19<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 2514889 5 5790 0.19         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2060 Fund Fidelity Advisor® Sustainable Target Date 2060 Fund Class C FSZVX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2060 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>163<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 163 0.0149 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,853 $12,311 $14,630 Fidelity Sustainable Target Date 2060 Composite Index℠ $10,000 $11,842 $12,567 $14,919 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11853 12311 14630 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2060 Composite Index℠</span> 10000 11842 12567 14919 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 17.84% 14.07% Class C 18.84% 14.07% Fidelity Sustainable Target Date 2060 Composite Index℠ 18.71% 14.84% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1784 0.1407 0.1884 0.1407 0.1871 0.1484 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>10,454,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>38,021</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">26<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 10454369 5 38021 0.26         Domestic Equity Funds 53.4 International Equity Funds 42.5 Bond Funds 4.1 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.4               International Equity Funds - 42.5          Bond Funds - 4.1                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.425 0.041 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.4   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.9   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.6   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.534 0.289 0.136 0.036 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity Advisor® Sustainable Target Date 2030 Fund Class Z FSXFX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 39 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $11,280 $11,828 $13,509 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 11280 11828 13509 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 14.22% 10.97% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1422 0.1097 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity® Sustainable Target Date 2050 Fund Class K FSZFX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 43 0.0039 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,969 $12,562 $15,099 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11969 12562 15099 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 20.19% 15.32% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2019 0.1532 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2055 Fund Fidelity® Sustainable Target Date 2055 Fund Class K6 FSZRX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2055 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>32<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 32 0.0029 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $11,983 $12,586 $15,150 Fidelity Sustainable Target Date 2055 Composite Index℠ $10,000 $11,842 $12,567 $14,920 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 11983 12586 15150 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2055 Composite Index℠</span> 10000 11842 12567 14920 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 20.37% 15.46% Fidelity Sustainable Target Date 2055 Composite Index℠ 18.72% 14.85% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2037 0.1546 0.1872 0.1485 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>12,591,836</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>45,440</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">20<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 12591836 5 45440 0.20         Domestic Equity Funds 53.3 International Equity Funds 42.4 Bond Funds 4.3 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 53.3               International Equity Funds - 42.4          Bond Funds - 4.3                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.533 0.424 0.043 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 53.3   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.8   Fidelity Series Sustainable Emerging Markets Fund 13.6   Fidelity Series Long-Term Treasury Bond Index Fund 3.8   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.5     100.0   0.533 0.288 0.136 0.038 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2030 Fund Fidelity® Sustainable Target Date 2030 Fund Class K FSXHX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2030 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>39<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 39 0.0036 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K $10,000 $11,280 $11,828 $13,514 Fidelity Sustainable Target Date 2030 Composite Index℠ $10,000 $11,231 $11,865 $13,445 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K</span> 10000 11280 11828 13514 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2030 Composite Index℠</span> 10000 11231 11865 13445 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K 14.25% 10.98% Fidelity Sustainable Target Date 2030 Composite Index℠ 13.31% 10.79% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1425 0.1098 0.1331 0.1079 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>13,750,333</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>44,190</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 13750333 9 44190 0.43         Bond Funds 39.1 Domestic Equity Funds 32.0 International Equity Funds 28.5 Short-Term Funds 0.4 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 39.1                          Domestic Equity Funds - 32.0               International Equity Funds - 28.5          Short-Term Funds - 0.4                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.391 0.320 0.285 0.004 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 32.0   Fidelity Series Sustainable Investment Grade Bond Fund 21.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 19.3   Fidelity Series Sustainable Emerging Markets Fund 9.2   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 7.6   Fidelity Series Long-Term Treasury Bond Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 4.3   Fidelity Series Treasury Bill Index Fund 0.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 0.4     100.0   0.320 0.218 0.193 0.092 0.076 0.050 0.043 0.004 0.004 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity Advisor® Sustainable Target Date 2020 Fund Class Z FSWKX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>35<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.33<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 35 0.0033 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class Z $10,000 $10,974 $11,516 $12,854 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class Z</span> 10000 10974 11516 12854 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class Z 11.62% 9.08% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1162 0.0908 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2020 Fund Fidelity Advisor® Sustainable Target Date 2020 Fund Class C FSWGX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2020 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>150<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.43<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 150 0.0143 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $10,862 $11,286 $12,455 Fidelity Sustainable Target Date 2020 Composite Index℠ $10,000 $10,956 $11,565 $12,818 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 10862 11286 12455 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2020 Composite Index℠</span> 10000 10956 11565 12818 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 9.37% 7.89% Class C 10.37% 7.89% Fidelity Sustainable Target Date 2020 Composite Index℠ 10.83% 8.97% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0937 0.0789 0.1037 0.0789 0.1083 0.0897 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,894,601</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>17,933</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">31<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 4894601 9 17933 0.31         Bond Funds 53.4 Domestic Equity Funds 23.6 International Equity Funds 22.5 Short-Term Funds 0.5 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 53.4                          Domestic Equity Funds - 23.6               International Equity Funds - 22.5          Short-Term Funds - 0.5                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.534 0.236 0.225 0.005 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 33.0   Fidelity Series Sustainable U.S. Market Fund 23.6   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 15.1   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 8.0   Fidelity Series Sustainable Emerging Markets Fund 7.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 5.7   Fidelity Series International Developed Markets Bond Index Fund 4.9   Fidelity Series Long-Term Treasury Bond Index Fund 1.8   Fidelity Series Treasury Bill Index Fund 0.5     100.0   0.330 0.236 0.151 0.080 0.074 0.057 0.049 0.018 0.005 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2050 Fund Fidelity Advisor® Sustainable Target Date 2050 Fund Class I FSZBX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2050 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class I</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>54<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.49<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 54 0.0049 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <span style="line-height:13px;"> </span><div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class I $10,000 $11,962 $12,538 $15,062 Fidelity Sustainable Target Date 2050 Composite Index℠ $10,000 $11,842 $12,567 $14,926 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class I</span> 10000 11962 12538 15062 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2050 Composite Index℠</span> 10000 11842 12567 14926 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class I 20.13% 15.22% Fidelity Sustainable Target Date 2050 Composite Index℠ 18.77% 14.86% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.2013 0.1522 0.1877 0.1486 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,471,673</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">5</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>58,369</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">27<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 15471673 5 58369 0.27         Domestic Equity Funds 52.5 International Equity Funds 41.8 Bond Funds 5.7 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Domestic Equity Funds - 52.5               International Equity Funds - 41.8          Bond Funds - 5.7                           Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.525 0.418 0.057 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 52.5   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 28.4   Fidelity Series Sustainable Emerging Markets Fund 13.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.9   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 0.8     100.0   0.525 0.284 0.134 0.049 0.008 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's contractual proxy and shareholder meeting expense cap expired during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date Retirement Fund Fidelity® Sustainable Target Date Retirement Fund Class K6 FSUWX This annual shareholder report contains information about Fidelity® Sustainable Target Date Retirement Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-800-835-5092 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-800-835-5092 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>22<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">0.21<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 22 0.0021 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class K6 $10,000 $10,503 $11,064 $11,877 Fidelity Sustainable Target Date Retirement Composite Index℠ $10,000 $10,532 $11,107 $11,869 Bloomberg U.S. Aggregate Bond Index $10,000 $10,089 $10,582 $11,042   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class K6</span> 10000 10503 11064 11877 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date Retirement Composite Index℠</span> 10000 10532 11107 11869 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Bloomberg U.S. Aggregate Bond Index</span> 10000 10089 10582 11042 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class K6 7.35% 6.13% Fidelity Sustainable Target Date Retirement Composite Index℠ 6.87% 6.11% Bloomberg U.S. Aggregate Bond Index 4.35% 3.49% A   From May 11, 2023   Visit www.401k.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.0735 0.0613 0.0687 0.0611 0.0435 0.0349 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">www.401k.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>1,408,373</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>4,739</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">36<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 1408373 9 4739 0.36         Bond Funds 66.4 International Equity Funds 15.5 Domestic Equity Funds 13.1 Short-Term Funds 5.0 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 66.4                          International Equity Funds - 15.5          Domestic Equity Funds - 13.1               Short-Term Funds - 5.0                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.664 0.155 0.131 0.050 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable Investment Grade Bond Fund 37.0   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 22.0   Fidelity Series Sustainable U.S. Market Fund 13.1   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 10.3   Fidelity Series Sustainable Emerging Markets Fund 5.2   Fidelity Series Treasury Bill Index Fund 5.0   Fidelity Series International Developed Markets Bond Index Fund 5.0   Fidelity Series Long-Term Treasury Bond Index Fund 1.3   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 1.1     100.0   0.370 0.220 0.131 0.103 0.052 0.050 0.050 0.013 0.011 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-800-835-5092</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund's name changed from Fidelity® Sustainable Target Date Income Fund to Fidelity® Sustainable Target Date Retirement Fund during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"><br/></div> 2026-03-31 This report describes changes to the Fund that occurred during the reporting period. Fidelity® Sustainable Target Date 2025 Fund Fidelity Advisor® Sustainable Target Date 2025 Fund Class C FSWRX This annual shareholder report contains information about Fidelity® Sustainable Target Date 2025 Fund for the period April 1, 2025 to March 31, 2026. annual shareholder report You can find additional information about the Fund at fundresearch.fidelity.com/prospectus/sec. You can also request this information by contacting us at 1-877-208-0098 or by sending an e-mail to fidfunddocuments@fidelity.com. fundresearch.fidelity.com/prospectus/sec 1-877-208-0098 fidfunddocuments@fidelity.com <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What were your Fund costs for the last year?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(based on hypothetical $10,000 investment)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">FUND COST (PREVIOUS YEAR)</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:51%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> </td> <td style="width:21%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs of a $10,000 investment</span></div> </td> <td style="width:27%; background-color:#dfe0e4;border:1px solid #dfe0e4;padding:0px 0px 0px 0px;" valign="bottom"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">Costs paid as a percentage of a $10,000 investment </span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:51%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Class C</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:21%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$ </span>153<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> </td> <td style="width:27%; border-bottom:1px solid #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:center;text-align-last:auto;">1.44<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> </td> <td style="width:1%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 153 0.0144 <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">What affected the Fund's performance this period?</span> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Global risk assets posted strong gains for the 12 months ending March 31, 2026, supported by healthy corporate fundamentals in several regions, a resilient global economy, robust corporate spending on artificial intelligence and dovish monetary policy from some central banks, though momentum faded in late February, as conflict in the Middle East took center stage.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Against this backdrop, an overweight positioning in non-U.S. equities and investment performance among the underlying U.S. equity portfolio notably contributed to the fund's performance versus the composite index for the fiscal year. Also helping on a relative basis was an underweight positioning, on average, in U.S. investment-grade bonds.</span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>From an underlying portfolio standpoint, the largest individual relative contributor this period was an investment in Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable U.S. Markets Fund (+21.93%), which outpaced its benchmark, the MSCI USA IMI ESG Focus Dynamic Weighted Index (+18.10%) for the 12 months. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>Also contributing was Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Emerging Markets Fund (+34.95%), which topped the 29.50% return of its benchmark, the MSCI EM ESG Focus Index. </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>In contrast, investment performance in the underlying non-U.S. developed-markets equities portfolio detracted from the Fund's relative result. Here, Fidelity</span><span style="font-family:'Fidelity Sans';font-size:6px;color:#000000;font-style:normal;vertical-align:4px;font-weight:normal;">®</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> Series Sustainable Non-U.S. Developed Markets Fund (+19.09%) trailed its benchmark, the MSCI World ex USA ESG Focus Index (+22.24%). </span></div> <div style="text-align:left;text-align-last:auto;text-indent:-24px;margin-bottom:2px;margin-left:24px;margin-top:5px;margin-right:0px;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;">•<span style="padding-right:10px"></span>An overweight allocation to long-term U.S. Treasury bonds also hurt the Fund's relative performance this period. </span></div> <span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:italic;font-weight:normal;">Application of FMR's environmental, social, and governance (ESG) ratings process and/or its sustainable investing exclusion criteria may affect the Fund's exposure to certain issuers, sectors, regions, and countries and may affect the Fund's performance.</span></div> <div><span style="font-size:16px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div> How did the Fund perform over the life of Fund?    CUMULATIVE PERFORMANCE May 11, 2023 through March 31, 2026. Initial investment of $10,000. Class C $10,000 $11,017 $11,418 $12,761 Fidelity Sustainable Target Date 2025 Composite Index℠ $10,000 $11,087 $11,705 $13,131 S&P 500® Index $10,000 $12,902 $13,967 $16,453   2023 2024 2025 2026   <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Class C</span> 10000 11017 11418 12761 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">Fidelity Sustainable Target Date 2025 Composite Index℠</span> 10000 11087 11705 13131 <span style="font-family:'Fidelity Sans';font-size:9px;color:#000000;font-style:normal;font-weight:normal;">S&amp;P 500® Index</span> 10000 12902 13967 16453 AVERAGE ANNUAL TOTAL RETURNS:   1 Year Life of Fund A Class C  (incl. contingent deferred sales charge) 10.77% 8.80% Class C 11.77% 8.80% Fidelity Sustainable Target Date 2025 Composite Index℠ 12.18% 9.88% S&P 500® Index 17.80% 18.80% A   From May 11, 2023   Visit institutional.fidelity.com for more recent performance information.    The Fund's past performance is not a good predictor of the Fund's future performance.  The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. 0.1077 0.0880 0.1177 0.0880 0.1218 0.0988 0.1780 0.1880 2023-05-11 <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Visit </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">institutional.fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> for more recent performance information.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:italic;font-weight:normal;">The Fund's past performance is not a good predictor of the Fund's future performance.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.</span> <span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">Key Fund Statistics</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">(as of March 31, 2026)</span></div> <div><span style="font-size:11px;"> </span></div><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:right;text-align-last:auto;"><table cellpadding="0" cellspacing="1" style="border-collapse:separate;border-style:none;margin:auto;" width="100%"><tr><td style="width:63%; " valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:bold;">KEY FACTS</span></div> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;"> <span> </span></span></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:32%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:12px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Fund Size</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>5,827,884</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Number of Holdings</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">9</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Total Advisory Fee</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">$</span>15,956</div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="middle"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> <tr><td style="width:63%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">Portfolio Turnover</span></div> </td> <td style="width:32%; border-bottom:1px dashed #000000;padding:0px 0px 0px 0px;" valign="middle"><div style="text-align:right;text-align-last:auto;">29<span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">%</span></div> <div style="text-align:right;text-align-last:auto;"></div> </td> <td style="width:5%; " valign="top"><span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> 5827884 9 15956 0.29         Bond Funds 45.3 Domestic Equity Funds 28.2 International Equity Funds 25.9 Short-Term Funds 0.6 Short-Term Investments and Net Other Assets (Liabilities) 0.0 ASSET ALLOCATION (% of Fund's net assets)     Bond Funds - 45.3                          Domestic Equity Funds - 28.2               International Equity Funds - 25.9          Short-Term Funds - 0.6                     Short-Term Investments and Net Other Assets (Liabilities) - 0.0   0.453 0.282 0.259 0.006 0.000 TOP HOLDINGS(% of Fund's net assets)     Fidelity Series Sustainable U.S. Market Fund 28.2   Fidelity Series Sustainable Investment Grade Bond Fund 24.8   Fidelity Series Sustainable Non-U.S. Developed Markets Fund 17.5   Fidelity Series 5+ Year Inflation-Protected Bond Index Fund 10.1   Fidelity Series Sustainable Emerging Markets Fund 8.4   Fidelity Series Long-Term Treasury Bond Index Fund 4.4   Fidelity Series International Developed Markets Bond Index Fund 4.4   Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund 1.6   Fidelity Series Treasury Bill Index Fund 0.6     100.0   0.282 0.248 0.175 0.101 0.084 0.044 0.044 0.016 0.006 <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:16px;color:#368627;font-style:normal;font-weight:bold;">How has the Fund changed?</span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> </span></div> <div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span></div> <div style="text-align:left;text-align-last:auto;"></div> <span style="line-height:11px;"> </span><div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"><table cellpadding="0" cellspacing="0" style="border-collapse:collapse;border-style:none;" width="100%"><tr><td style="width:50%; background-color:#ebf3e9;border-right:2px dashed #368627;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div></div> <div style="text-align:left;text-align-last:auto;"></div> </td> <td style="width:50%; background-color:#ebf3e9;padding:19px 19px 19px 19px;" valign="top"><div style="text-align:left;text-align-last:auto;"></div> </td> </tr> </table> </div> <div style="text-align:left;text-align-last:auto;"></div> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">This is a summary of certain changes to the Fund since April 1, 2025. For more complete information, you may review the Fund's next prospectus, which we expect to be available by</span><span style="font-family:'Fidelity Sans';font-size:12px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">May 30, 2026 at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or upon request at </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span><span style="font-family:'Fidelity Sans';font-size:0px;color:#000000;font-style:normal;font-weight:normal;"> </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;"> or by sending an e-mail to </span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span><span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">.</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:bold;">fundresearch.fidelity.com/prospectus/sec</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">1-877-208-0098</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">fidfunddocuments@fidelity.com</span> <span style="font-family:'Fidelity Sans';font-size:11px;color:#000000;font-style:normal;font-weight:normal;">The fund modified its principal investment strategies during the reporting period.</span> <div style="text-align:left;text-align-last:auto;"></div> <div style="text-align:left;text-align-last:auto;"></div>