The Hartford MidCap Fund

Summary Prospectus

March 1, 2024

Class A	Class C	Class I	Class R3	Class R4	Class R5	Class R6	Class Y	Class F
HFMCX	HMDCX	HFMIX	HFMRX	HFMSX	HFMTX	HFMVX	HMDYX	HMDFX

Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus, reports to shareholders, and other information about the Fund online at http://www.hartfordfunds.com/prospectuses.html. You can also get this information at no cost by calling 1-888-843-7824 or request a copy of the prospectus by sending an e-mail to orders@mysummaryprospectus.com. The Fund’s prospectus and statement of additional information dated March 1, 2024, each as may be amended, supplemented or restated, are incorporated by reference into this summary prospectus. The Fund’s statement of additional information may be obtained, free of charge, in the same manner as the Fund’s prospectus.

INVESTMENT OBJECTIVE. The Fund seeks long-term growth of capital.

YOUR EXPENSES. The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. Please contact your financial intermediary for more information regarding whether you may be required to pay a brokerage commission or other fees. You may qualify for sales charge discounts for Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in certain classes of Hartford mutual funds or in The Hartford® SMART529® College Savings Plan. More information about these and other discounts is available from your financial professional and in the “How Sales Charges Are Calculated” section beginning on page 85 of the Fund’s statutory prospectus. Descriptions of any financial intermediary specific sales charge waivers and discounts are set forth in Appendix A to the statutory prospectus.

Shareholder Fees (fees paid directly from your investment):

Share Classes	A	C	I	R3	R4	R5	R6	Y	F
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	5.50%	None	None	None	None	None	None	None	None
Maximum deferred sales charge (load) (as a percentage of purchase price or redemption proceeds, whichever is less)	None(1)	1.00%	None	None	None	None	None	None	None

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):

Share Classes	A	C	I	R3	R4	R5	R6	Y	F
Management fees	0.71%	0.71%	0.71%	0.71%	0.71%	0.71%	0.71%	0.71%	0.71%
Distribution and service (12b-1) fees	0.25%	1.00%	None	0.50%	0.25%	None	None	None	None
Other expenses	0.15%	0.17%	0.12%	0.25%	0.20%	0.13%	0.04%	0.14%	0.04%
Total annual fund operating expenses	1.11%	1.88%	0.83%	1.46%	1.16%	0.84%	0.75%	0.85%	0.75%

(1)

Investments of $1 million or more will not be subject to a front-end sales charge, but may be subject to a 1.00% contingent deferred sales charge.

Example. The example below is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then, except as shown below, redeem all of your shares at the end of those periods. The example also assumes that:

•

Your investment has a 5% return each year

•

The Fund’s operating expenses remain the same

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You reinvest all dividends and distributions.

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Share Classes	Year 1	Year 3	Year 5	Year 10
A	$657	$883	$1,128	$1,827
C	$291	$591	$1,016	$2,201
I	$85	$265	$460	$1,025
R3	$149	$462	$797	$1,746
R4	$118	$368	$638	$1,409
R5	$86	$268	$466	$1,037
R6	$77	$240	$417	$930
Y	$87	$271	$471	$1,049
F	$77	$240	$417	$930

If you did not redeem your shares:

$191

$591

$1,016

$2,201

Portfolio Turnover. The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended October 31, 2023, the Fund’s portfolio turnover rate was 35% of the average value of its portfolio.

PRINCIPAL INVESTMENT STRATEGY. The Fund seeks its investment objective by investing primarily in stocks selected by the sub-adviser, Wellington Management Company LLP (“Wellington Management”), on the basis of potential for capital appreciation. Under normal circumstances, the Fund invests at least 80% of its assets in common stocks of mid-capitalization companies. Wellington Management favors companies that it believes are high-quality. The key characteristics of high-quality companies include a leadership position within an industry, a strong balance sheet, a high return on equity, and/or a strong management team. Wellington Management uses fundamental analysis to evaluate a security for purchase or sale by the Fund. Fundamental analysis of a company involves the assessment of such factors as its business environment, management quality, balance sheet, income statement, anticipated earnings, revenues and dividends, and other related measures and indicators of value. Wellington Management also may consider financially material environmental, social, and/or governance (“ESG”) characteristics (where available for a company) to assess the risk and return potential of a company. The Fund’s portfolio seeks to be diversified across the sectors included in the S&P MidCap 400 Index. The amount the Fund invests in any one sector may vary and the Fund is not required to invest in all sectors. Based on market or economic conditions, the Fund may, through its normal bottom-up stock selection process, focus in one or more sectors of the market.

The Fund defines mid-capitalization companies as companies with market capitalizations within the collective range of the Russell Midcap and S&P MidCap 400 Indices. As of December 31, 2023, this range was approximately $270.19 million to $73.29 billion. The market capitalization range of these indices changes over time.

PRINCIPAL RISKS. The principal risks of investing in the Fund are described below. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. As with any fund, there is no guarantee that the Fund will achieve its investment objective.

Market Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities of a company may decline in value due to its financial prospects and activities, including certain operational impacts, such as data breaches and cybersecurity attacks. Securities may also decline in value due to general market and economic movements and trends, including adverse changes to credit markets, or as a result of other events such as geopolitical events, natural disasters, or widespread pandemics (such as COVID-19) or other adverse public health developments.

Equity Risk – The risk that the price of equity or equity related securities may decline due to changes in a company’s financial condition and overall market and economic conditions.

Mid-Cap Securities Risk – The securities of mid-capitalization companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies.

Active Investment Management Risk – The risk that, if the sub-adviser’s investment strategy does not perform as expected, the Fund could underperform its peers or lose money. Although the sub-adviser considers several factors when making investment decisions, the sub-adviser may not evaluate every factor prior to investing in a company or issuer, and the sub-adviser may determine that certain factors are more significant than others.

Sector Risk – To the extent the Fund invests more heavily in a particular sector or sectors, its performance will be especially sensitive to developments that significantly affect those sectors. Individual sectors may be more volatile, and may perform differently, from the broader market.

ESG Integration Risk – Integrating financially material ESG analysis into the investment process carries the risk that the Fund may perform differently from funds that do not integrate ESG into their analysis, or funds that evaluate different ESG characteristics. ESG characteristics are one of several factors that may be considered and as a result, the Fund’s investments may not have favorable ESG characteristics or high ESG ratings.

Large Shareholder Transaction Risk – The Fund may experience adverse effects when certain large shareholders redeem or purchase large amounts of shares of the Fund. Such redemptions may cause the Fund to sell securities at times when it would not otherwise do so or borrow money (at a cost to the Fund), which may negatively impact the Fund’s performance and liquidity. Similarly, large purchases may adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments resulted in gains, and may also increase transaction costs.

The Fund is subject to certain other risks. For more information regarding risks and investments, please see “Additional Information Regarding Investment Strategies and Risks” and “More Information About Risks” in the Fund’s statutory prospectus.

PAST PERFORMANCE. The performance information indicates the risks of investing in the Fund. Keep in mind that past performance does not indicate future results. Updated performance information is available at hartfordfunds.com. The returns in the bar chart and table:

•

Assume reinvestment of all dividends and distributions

•

Reflect fee waivers and/or expense limitation arrangements, if any. Absent any applicable fee waivers and/or expense limitation arrangements, performance would have been lower.

The bar chart:

•

Shows how the Fund’s total return has varied from year to year

•

Returns do not include sales charges. If sales charges were reflected, returns would have been lower

•

Shows the returns of Class A shares. Returns for the Fund’s other classes differ only to the extent that the classes do not have the same expenses.

Total returns by calendar year (excludes sales charges)

During the periods shown in the chart above:	Returns	Quarter Ended
Best Quarter Return	26.20%	December 31, 2020
Worst Quarter Return	-24.25%	March 31, 2020

Average Annual Total Returns. The table below shows returns for the Fund over time compared to those of three indices. The S&P MidCap 400 Index serves as the Fund’s performance index because the Fund’s investment manager believes it is more representative of the Fund’s investment strategy. The Russell Midcap Growth Index serves as the Fund’s secondary performance index. The Russell 3000 Index serves as the Fund’s regulatory index and provides a broad measure of market performance. After-tax returns, which are calculated using the historical highest individual federal

marginal income tax rates and do not reflect the impact of state and local taxes, are shown only for Class A shares and will vary for other classes. Actual after-tax returns, which depend on an investor’s particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average annual total returns for periods ending December 31, 2023 (including sales charges)

Share Classes	1 Year	5 Years	10 Years
Class A – Return Before Taxes	8.10%	8.12%	7.78%
– Return After Taxes on Distributions	7.48%	6.10%	5.81%
– Return After Taxes on Distributions and Sale of Fund Shares	5.19%	6.39%	5.98%
Share Classes (Return Before Taxes)
Class C	12.55%	8.53%	7.59%
Class I	14.74%	9.62%	8.66%
Class R3	13.97%	8.96%	8.02%
Class R4	14.37%	9.30%	8.36%
Class R5	14.69%	9.63%	8.68%
Class R6*	14.77%	9.73%	8.79%
Class Y	14.69%	9.68%	8.76%
Class F*	14.79%	9.74%	8.74%
S&P MidCap 400 Index (reflects no deduction for fees, expenses or taxes)	16.44%	12.62%	9.27%
Russell Midcap Growth Index (reflects no deduction for fees, expenses or taxes)	25.87%	13.81%	10.57%
Russell 3000 Index (reflects no deduction for fees, expenses or taxes)	25.96%	15.16%	11.48%

Class R6 shares commenced operations on November 7, 2014 and performance prior to that date is that of the Fund’s Class Y shares. Class F shares commenced operations on February 28, 2017 and performance prior to that date is that of the Fund’s Class I shares. Performance prior to an inception date of a class has not been adjusted to reflect the operating expenses of such class.

MANAGEMENT. The Fund’s investment manager is Hartford Funds Management Company, LLC. The Fund’s sub-adviser is Wellington Management.

Portfolio Manager	Title	Involved with Fund Since
Philip W. Ruedi, CFA	Senior Managing Director and Equity Portfolio Manager	2004
Mark A. Whitaker, CFA	Senior Managing Director and Equity Portfolio Manager	2004

PURCHASE AND SALE OF FUND SHARES. Not all share classes are available for all investors. Minimum investment amounts may be waived for certain accounts. Certain financial intermediaries may impose different restrictions than those described below.

Share Classes	Minimum Initial Investment	Minimum Subsequent Investment
Class A, Class C and Class I	$2,000 for all accounts except: $250, if establishing an Automatic Investment Plan (“AIP”), with recurring monthly investments of at least $50	$50
Class R3, Class R4, Class R5 and Class R6	No minimum initial investment	None
Class Y	$250,000 This requirement is waived when the shares are purchased through omnibus accounts (or similar types of accounts).	None
Class F	$1,000,000 This requirement is waived when the shares are purchased through omnibus accounts (or similar types of accounts).	None

For more information, please see the “How To Buy And Sell Shares” section of the Fund’s statutory prospectus.

You may sell your shares of the Fund on those days when the New York Stock Exchange is open, typically Monday through Friday. You may sell your shares through your financial intermediary. With respect to certain accounts, you may sell your shares on the web at hartfordfunds.com, by phone by calling 1-888-843-7824, by electronic funds

transfer, or by wire. In certain circumstances you will need to write to Hartford Funds to request to sell your shares. For regular mail, please send the request to Hartford Funds, P.O. Box 219060, Kansas City, MO 64121-9060. For overnight mail, please send the request to Hartford Funds, 430 W 7th Street, Suite 219060, Kansas City, MO 64105-1407.

TAX INFORMATION. The Fund’s distributions are generally taxable, and may be taxed as ordinary income or capital gains, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account. Such tax-deferred arrangements may be taxed later upon withdrawal of monies from those arrangements.

PAYMENTS TO BROKER-DEALERS AND OTHER FINANCIAL INTERMEDIARIES. If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank or financial professional), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your financial professional to recommend the Fund over another investment. Ask your financial professional or visit your financial intermediary’s website for more information.

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