0001193125-12-507890.txt : 20121219 0001193125-12-507890.hdr.sgml : 20121219 20121219125619 ACCESSION NUMBER: 0001193125-12-507890 CONFORMED SUBMISSION TYPE: 485BPOS PUBLIC DOCUMENT COUNT: 7 FILED AS OF DATE: 20121219 DATE AS OF CHANGE: 20121219 EFFECTIVENESS DATE: 20121219 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Columbia Funds Series Trust II CENTRAL INDEX KEY: 0001352280 IRS NUMBER: 204384176 STATE OF INCORPORATION: MA FISCAL YEAR END: 0430 FILING VALUES: FORM TYPE: 485BPOS SEC ACT: 1933 Act SEC FILE NUMBER: 333-131683 FILM NUMBER: 121273723 BUSINESS ADDRESS: STREET 1: 225 FRANKLIN STREET CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 612-671-4321 MAIL ADDRESS: STREET 1: 50606 AMERIPRISE FINANCIAL CENTER STREET 2: H27/5228 CITY: MINNEAPOLIS STATE: MN ZIP: 55474 FORMER COMPANY: FORMER CONFORMED NAME: RIVERSOURCE SERIES TRUST DATE OF NAME CHANGE: 20070928 FORMER COMPANY: FORMER CONFORMED NAME: RIVERSOURCE RETIREMENT SERIES TRUST DATE OF NAME CHANGE: 20060801 FORMER COMPANY: FORMER CONFORMED NAME: RiverSource Retirement Series Trust DATE OF NAME CHANGE: 20060206 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Columbia Funds Series Trust II CENTRAL INDEX KEY: 0001352280 IRS NUMBER: 204384176 STATE OF INCORPORATION: MA FISCAL YEAR END: 0430 FILING VALUES: FORM TYPE: 485BPOS SEC ACT: 1940 Act SEC FILE NUMBER: 811-21852 FILM NUMBER: 121273724 BUSINESS ADDRESS: STREET 1: 225 FRANKLIN STREET CITY: BOSTON STATE: MA ZIP: 02110 BUSINESS PHONE: 612-671-4321 MAIL ADDRESS: STREET 1: 50606 AMERIPRISE FINANCIAL CENTER STREET 2: H27/5228 CITY: MINNEAPOLIS STATE: MN ZIP: 55474 FORMER COMPANY: FORMER CONFORMED NAME: RIVERSOURCE SERIES TRUST DATE OF NAME CHANGE: 20070928 FORMER COMPANY: FORMER CONFORMED NAME: RIVERSOURCE RETIREMENT SERIES TRUST DATE OF NAME CHANGE: 20060801 FORMER COMPANY: FORMER CONFORMED NAME: RiverSource Retirement Series Trust DATE OF NAME CHANGE: 20060206 0001352280 S000031341 Columbia Floating Rate Fund C000097331 Columbia Floating Rate Fund Class A RFRAX C000097332 Columbia Floating Rate Fund Class B RSFBX C000097333 Columbia Floating Rate Fund Class C RFRCX C000097334 Columbia Floating Rate Fund Class I RFRIX C000097335 Columbia Floating Rate Fund Class R CFRRX C000097336 Columbia Floating Rate Fund Class K CFERX C000097337 Columbia Floating Rate Fund Class R5 RFRFX C000097338 Columbia Floating Rate Fund Class W RFRWX C000097339 Columbia Floating Rate Fund Class Z CFRZX C000123165 Columbia Floating Rate Fund Class R4 0001352280 S000031353 Columbia Large Value Quantitative Fund C000097419 Columbia Large Value Quantitative Fund Class A RLCAX C000097420 Columbia Large Value Quantitative Fund Class B CVQBX C000097421 Columbia Large Value Quantitative Fund Class C RDCCX C000097422 Columbia Large Value Quantitative Fund Class I CLQIX C000097423 Columbia Large Value Quantitative Fund Class R RLCOX C000097424 Columbia Large Value Quantitative Fund Class K RLCYX C000097425 Columbia Large Value Quantitative Fund Class T CVQTX C000097426 Columbia Large Value Quantitative Fund Class W RLCWX C000097427 Columbia Large Value Quantitative Fund Class Z CVQZX 0001352280 S000031356 Columbia Large Core Quantitative Fund C000097448 Columbia Large Core Quantitative Fund Class A AQEAX C000097449 Columbia Large Core Quantitative Fund Class B AQEBX C000097450 Columbia Large Core Quantitative Fund Class C RDCEX C000097451 Columbia Large Core Quantitative Fund Class I ALEIX C000097452 Columbia Large Core Quantitative Fund Class R CLQRX C000097453 Columbia Large Core Quantitative Fund Class K RQEYX C000097454 Columbia Large Core Quantitative Fund Class R5 RSIPX C000097455 Columbia Large Core Quantitative Fund Class W RDEWX C000097456 Columbia Large Core Quantitative Fund Class Z CCRZX 0001352280 S000031364 Columbia Money Market Fund C000097504 Columbia Money Market Fund Class A IDSXX C000097505 Columbia Money Market Fund Class B ACBXX C000097506 Columbia Money Market Fund Class C RCCXX C000097507 Columbia Money Market Fund Class I RCIXX C000097508 Columbia Money Market Fund Class R RVRXX C000097509 Columbia Money Market Fund Class R5 C000097510 Columbia Money Market Fund Class W RCWXX C000097511 Columbia Money Market Fund Class Z IDYXX 0001352280 S000031366 Columbia Minnesota Tax-Exempt Fund C000097521 Columbia Minnesota Tax-Exempt Fund Class A IMNTX C000097522 Columbia Minnesota Tax-Exempt Fund Class B IDSMX C000097523 Columbia Minnesota Tax-Exempt Fund Class C RMTCX C000097524 Columbia Minnesota Tax-Exempt Fund Class Z CMNZX 0001352280 S000031369 Columbia AMT-Free Tax-Exempt Bond Fund C000097542 Columbia AMT-Free Tax-Exempt Bond Fund Class A INTAX C000097543 Columbia AMT-Free Tax-Exempt Bond Fund Class B ITEBX C000097544 Columbia AMT-Free Tax-Exempt Bond Fund Class C RTCEX C000097545 Columbia AMT-Free Tax-Exempt Bond Fund Class Z CATZX 0001352280 S000031374 Columbia Limited Duration Credit Fund C000097580 Columbia Limited Duration Credit Fund Class A ALDAX C000097581 Columbia Limited Duration Credit Fund Class B ALDBX C000097582 Columbia Limited Duration Credit Fund Class C RDCLX C000097583 Columbia Limited Duration Credit Fund Class I ALDIX C000097584 Columbia Limited Duration Credit Fund Class K CLDRX C000097585 Columbia Limited Duration Credit Fund Class W RLDWX C000097586 Columbia Limited Duration Credit Fund Class Z CLDZX C000120797 Columbia Limited Duration Credit Fund Class R5 C000123166 Columbia Limited Duration Credit Fund Class R4 485BPOS 1 d429552d485bpos.htm 485BPOS 485BPOS

 

 

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

Form N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933   ¨
Pre-Effective Amendment No.   ¨
Post-Effective Amendment No. 78 (File No. 333-131683)   x

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 83 (File No. 811-21852)    x     

 

 

Columbia Funds Series Trust II

 

 

50606 Ameriprise Financial Center

Minneapolis, MN 55474

Scott R. Plummer

5228 Ameriprise Financial Center

Minneapolis, MN 55474

(612) 671-1947

 

 

Approximate Date of Proposed Public Offering:

It is proposed that this filing will become effective (check appropriate box)

  x immediately upon filing pursuant to paragraph (b)
  ¨ on (date) pursuant to paragraph (b)
  ¨ 60 days after filing pursuant to paragraph (a)(1)
  ¨ on (date) pursuant to paragraph (a)(1)
  ¨ 75 days after filing pursuant to paragraph (a)(2)
  ¨ on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

  ¨ this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

 

 

 

SIGNATURES

Pursuant to the requirements of the Securities Act and the Investment Company Act, the Registrant, COLUMBIA FUNDS SERIES TRUST II, certifies that it meets all of the requirements for effectiveness of this Amendment to its Registration Statement under Rule 485(b) and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Boston, and State of Massachusetts on the 19th day of December, 2012.

 

COLUMBIA FUNDS SERIES TRUST II

By  

/s/ J. Kevin Connaughton

 

J. Kevin Connaughton

President

Pursuant to the requirements of the Securities Act, this Amendment to the Registration Statement has been signed below by the following persons in the capacities indicated on the 19th day of December, 2012.

 

Signature   Capacity   Signature   Capacity

/s/ J. Kevin Connaughton

J. Kevin Connaughton

  

President

(Principal Executive Officer)

  

/s/ William A. Hawkins*

William A. Hawkins

   Trustee

/s/ Michael G. Clarke

Michael G. Clarke

  

Chief Financial Officer

(Principal Financial Officer)

  

/s/ R. Glenn Hilliard*

R. Glenn Hilliard

   Trustee

/s/ Paul D. Pearson

Paul D. Pearson

  

Chief Accounting Officer

(Principal Accounting Officer)

  

/s/ Catherine James Paglia*

Catherine James Paglia

   Trustee

/s/ Stephen R. Lewis, Jr.*

Stephen R. Lewis, Jr.

   Chair of the Board  

/s/ Leroy C. Richie*

Leroy C. Richie

   Trustee

/s/ Kathleen A. Blatz*

Kathleen A. Blatz

   Trustee  

/s/ Anthony M. Santomero*

Anthony M. Santomero

   Trustee

/s/ Edward J. Boudreau, Jr.*

Edward J. Boudreau, Jr.

   Trustee  

/s/ Minor M. Shaw*

Minor M. Shaw

   Trustee

/s/ Pamela G. Carlton*

Pamela G. Carlton

   Trustee  

/s/ Alison Taunton-Rigby*

Alison Taunton-Rigby

   Trustee

/s/ William P. Carmichael*

William P. Carmichael

   Trustee  

/s/ William F. Truscott*

William F. Truscott

   Trustee

/s/ Patricia M. Flynn*

Patricia M. Flynn

   Trustee    

 

* Signed pursuant to Directors/Trustees Power of Attorney, dated June 8, 2011, filed electronically on or about June 16, 2011 as Exhibit (q) to Registrant’s Post-Effective Amendment No. 28 to Registration Statement No. 333-131683, by:

 

/s/ Scott R. Plummer

Scott R. Plummer

Exhibit Index

 

Exhibit 101    Risk/Return Summary in Interactive Data Format.
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cfst43:BarclaysUsOneToFiveYearCreditIndexMember 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:C000097521Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:C000097522Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:C000097523Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:C000097524Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097504Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097505Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097506Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097507Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097509Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097510Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097511Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member cfst43:C000097508Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member rr:AfterTaxesOnDistributionsMember cfst43:C000097521Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member rr:AfterTaxesOnDistributionsAndSalesMember cfst43:C000097521Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:BarclaysMunicipalBondIndexMember 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:BarclaysMinnesotaMunicipalBondIndexMember 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member cfst43:LipperMinnesotaMunicipalDebtFundsIndexMember 2011-12-02 2012-12-01 0001352280 cfst43:S000031366Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031353Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031341Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031364Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031356Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031369Member rr:AfterTaxesOnDistributionsMember cfst43:C000097542Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031369Member rr:AfterTaxesOnDistributionsAndSalesMember cfst43:C000097542Member 2011-12-02 2012-12-01 0001352280 cfst43:S000031369Member cfst43:BarclaysMunicipalBondIndexMember 2011-12-02 2012-12-01 0001352280 cfst43:S000031369Member cfst43:LipperGeneralMunicipalDebtFundsIndexMember 2011-12-02 2012-12-01 pure iso4217:USD 2012-12-01 485BPOS Columbia Funds Series Trust II 0001352280 2012-11-27 2012-12-01 false 2012-07-31 0.0036 0.0036 0.0036 0.0036 0.0036 0.0036 0.0036 0.0036 0.0036 0.0025 0.01 0.01 0 0 0 0 0.0025 0 0.0028 0.0028 0.0028 0.0011 0.0041 0.0028 0.0016 0.0028 0.0028 0.0089 0.0164 0.0164 0.0047 0.0077 0.0064 0.0052 0.0089 0.0064 0.0085 0.016 0.016 0.0047 0.0077 0.006 0.0052 0.0085 0.006 0.0069 0.0069 0.0069 0.0069 0.0069 0.0069 0.0069 0.0069 0.0069 0.0025 0.01 0.01 0 0 0.005 0 0.0025 0 0.0575 0 0 0 0 0 0 0 0 0.0049 0.0049 0.0049 0.0017 0.0049 0.0047 0.0079 0.0049 0.0049 0 0 0 0 0 0 0.01 0.05 0.01 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0005 0.0148 0.0223 0.0223 0.0091 0.0121 0.0173 0.0153 0.0148 0.0123 -0.0025 -0.0025 -0.0025 -0.0013 -0.0013 -0.0025 -0.0025 -0.0025 -0.0025 0.0123 0.0198 0.0198 0.0078 0.0108 0.0148 0.0128 0.0123 0.0098 0.0059 0.0059 0.0059 0.0059 0.0059 0.0059 0.0059 0.0059 0.0059 0.0025 0.01 0.01 0 0 0.005 0 0.0025 0 0.0038 0.0038 0.0038 0.0007 0.0037 0.0038 0.0012 0.0038 0.0038 0.0122 0.0197 0.0197 0.0066 0.0096 0.0147 0.0071 0.0122 0.0097 0.012 0.0195 0.0195 0.0066 0.0096 0.0145 0.0071 0.012 0.0095 -0.0199 -0.0349 -0.0126 -0.045 -0.0053 0.0144 0.0118 0.0109 0.0086 0.0144 0.012 0.0136 0.0182 0.0182 -0.001 0.004 0.0139 0.017 0.0279 0.0264 0.0221 0.0244 0.0265 0.0237 0.0251 0.0332 0.0261 0.0062 0.0104 0.0226 0.0239 0.0348 0.0332 0.0291 0.0314 0.0332 0.0308 -0.0004 0.032 -0.0004 -0.0004 0 0 -0.0004 0 -0.0004 -0.0004 -0.0002 -0.0002 -0.0002 0 0 -0.0002 0 -0.0002 -0.0002 0.0058 0.0058 0.0058 0.0058 0.0058 0.0058 0.0058 0.0058 0.0058 0.0058 0.0025 0.01 0.01 0 0 0.005 0 0 0.0025 0 0.0032 0.0032 0.0032 0.0014 0.0044 0.0032 0.0032 0.0019 0.0032 0.0032 693 701 301 80 110 151 698 125 100 993 974 674 277 372 521 1008 444 366 1373 1315 1173 384 663 0.0115 492 263 48 0.019 653 79 0.019 61 916 53 0.0072 87 0.0102 61 1340 0.014 785 0.009 653 0.0077 0.0115 0.009 <b>Summary of the Fund </b> <b>INVESTMENT OBJECTIVE</b> 572 814 2227 514 2360 151 2550 246 201 1112 167 1459 280 2025 201 2279 1752 1472 0.0475 0 0 0 775 1089 889 264 429 353 291 490 353 0 0.01 0.05 0.01 1364 1744 1945 594 958 798 656 1097 798 -0.0006 -0.0006 -0.0006 0 0 -0.0006 -0.0006 0 -0.0006 -0.0006 0.0109 0.0184 0.0184 0.0072 0.0102 0.0134 0.0084 0.0077 0.0109 0.0084 690 698 298 98 148 73 122 97 938 917 617 306 463 227 385 307 1206 1262 1062 532 802 396 669 535 2006-02-16 2006-02-16 2006-02-16 2006-02-16 2006-02-16 2010-09-27 2008-08-01 2006-12-01 2010-09-27 1970 2104 2299 1183 1761 886 1480 1192 2006-02-16 2006-02-16 67 211 368 826 0.0041 0.0041 0.0041 0.0041 693 201 201 80 110 151 698 125 100 0.0025 0.01 0.01 0 0.002 0.002 0.002 0.002 993 674 674 277 444 372 1008 521 366 0.0385 0.0086 1315 1173 653 0.0161 916 0.0161 785 1340 492 0.0061 1173 653 2227 2360 2550 1459 1112 2025 2279 1752 1472 0.0082 0.0157 0.0157 0.0057 408 687 287 74 104 136 86 79 111 86 649 991 591 -0.0004 230 -0.0004 325 -0.0004 438 -0.0004 281 246 360 281 909 1222 1022 401 564 761 493 429 628 493 1107 1397 1107 958 1680 1252 898 2222 2126 1655 690 67 98 148 73 122 97 938 211 306 463 227 385 307 1206 368 532 802 396 669 535 -0.0307 -0.0587 1970 826 1183 0.0121 1761 886 -0.023 1480 1192 0.0099 0.0315 0.0291 0.0251 -0.0317 0.026 0.03 0.0039 0.03 0 0 0 0 0 0 0 0 -0.0276 -0.052 -0.0309 -0.0239 -0.0185 -0.0068 -0.0095 -0.0136 -0.0279 -0.0115 -0.0098 0.006 0.01 0.05 0.01 0 0 0 0 0 0 2008-08-01 2008-08-01 2008-08-01 2008-08-01 2008-08-01 2008-08-01 2011-03-07 2008-08-01 2010-09-27 198 198 617 617 1062 1062 2299 2104 408 187 187 74 104 136 86 79 111 86 649 591 591 230 325 438 281 246 360 281 909 1022 1022 401 564 761 493 429 628 493 1655 2026 2222 898 1252 1680 1107 958 1397 1107 555 660 260 58 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaLimitedDurationCreditFund column period compact * ~</div> 0.0996 0.062 0.1647 0.0526 -0.3874 0.2142 0.1514 0.0551 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaLimitedDurationCreditFund column period compact * ~</div> -0.0055 -0.0065 -0.0023 -0.0037 0.0349 0.0577 0.0568 0.0518 0.0578 0.0553 0.0567 0.0211 -0.0217 -0.029 -0.0214 -0.0211 -0.0175 -0.0063 -0.0086 -0.0124 -0.0064 -0.0105 -0.009 -0.0025 0.0483 0.0378 0.0371 0.0475 0.0475 0.0573 0.059 0.053 0.0578 0.0554 0.0562 0.0588 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaLimitedDurationCreditFund column period compact * ~</div> 384 163 163 48 79 61 53 87 61 572 514 514 151 246 201 167 280 201 775 889 889 264 429 353 291 490 353 1364 1744 594 1945 958 656 1097 798 798 2003-04-24 2003-04-24 2003-04-24 2004-07-15 2003-04-24 2006-12-11 2006-12-11 2006-12-01 2003-04-24 2003-04-24 2010-09-27 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaLimitedDurationCreditFund column period compact * ~</div> 0.0325 0.0152 0.0409 0.0488 -0.0604 0.1547 0.0617 0.0242 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaLimitedDurationCreditFundBarChart column period compact * ~</div> -0.0161 -0.0044 -0.0334 0.0066 0.0278 0.0248 0.0242 0.0242 0.0244 0.0271 0.0314 0.0304 0.0372 0.0237 0.0237 0.0357 0.0321 0.0473 0.0457 0.0435 0.0435 0.0431 0.044 0.0539 0.0529 0.0316 0.019 0.0194 0.0275 0.0275 0.0386 0.0372 0.0353 0.0353 0.0351 0.0356 0.0428 0.0413 2003-06-19 2003-06-19 2003-06-19 2003-06-19 2004-03-04 2003-06-19 2012-11-08 2006-12-01 2010-09-27 -0.0068 0.0143 -0.3044 0.4226 0.112 0.0109 0 0.03 0 0 0 0 0 0 0 0 0 0.01 0.05 0.01 0 0 0 0 0 0 733 804 504 192 926 1073 873 337 1486 1913 762 1711 160 160 504 504 873 873 1711 1913 555 58 192 733 926 337 1486 762 <b>FEES AND EXPENSES OF THE FUND</b> <b>Shareholder Fees (fees paid directly from your investment)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> November 30, 2013 <b>Example </b> <b>Portfolio Turnover</b> <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> Columbia AMT-Free Tax-Exempt Bond Fund (the Fund) seeks to provide shareholders with as much current income exempt from federal income taxes as possible with only modest risk to the shareholder&#8217;s investments. 0.0475 0 0 0 This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 50000 The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent period from December 1, 2011 to July 31, 2012, the Fund&#8217;s portfolio turnover rate was 13% of the average value of its portfolio and for the prior fiscal year ended November 30, 2011, the Fund&#8217;s portfolio turnover rate was 30% of the average value of its portfolio. 0.13 0.01 0.05 0.01 0 The Fund&#8217;s assets are invested primarily in high and medium quality municipal bonds and other debt obligations. Under normal market conditions, the Fund will invest at least 80% of its net assets (including the amount of any borrowings for investment purposes) in bonds and other debt obligations issued by or on behalf of state or local governmental units whose interest is exempt from federal income tax. At least 75% of the Fund&#8217;s net assets will be in investments: (1) rated in the top four rating categories by Moody&#8217;s Investors Service, Inc., Standard &amp; Poor&#8217;s Corporation, or Fitch Investors Services, Inc., (2) rated comparable to those four rating categories given by other independent rating agencies, or (3) unrated bonds and other debt obligations that are believed to be of investment grade credit quality. Although the Fund emphasizes high- and medium-quality debt securities, it will assume some credit risk in an effort to achieve higher yield and/or capital appreciation by investing up to 25% of its net assets in below investment grade (junk) bonds. The Fund does not intend to invest in debt obligations the interest from which is subject to the alternative minimum tax (AMT).<br/><br/>The Fund may invest in fixed income securities of any maturity and does not seek to maintain a particular dollar-weighted average maturity. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> <b>PAST PERFORMANCE</b> 0.004 0.004 0.004 0.004 0.0025 0.01 0.01 0 800.345.6611 0.002 0.002 0.002 0.002 0.0085 0.016 0.016 0.006 558 663 263 61 734 806 506 193 926 1074 874 337 1482 1707 1909 758 0 0 0 0 0 0 0.0032 0.0032 0.0032 0.0032 0.0032 0.0032 0.0032 0.0032 0.001 0.0085 0.0075 0 0 0.005 0.001 0 0.005 0.005 0.005 0.0008 0.005 0.005 0.005 0.0012 0.0092 0.0167 0.0157 0.004 0.0132 0.0044 0.0082 0.0092 -0.003 -0.004 -0.0008 -0.003 -0.0055 -0.0007 -0.003 -0.003 0.0062 0.0127 0.0127 0.0032 0.0077 0.0037 0.0062 0.0052 163 163 506 506 874 874 1707 1909 558 61 734 193 926 337 1482 758 0.0779 0.0502 0.036 0.023 0.0428 0.0176 -0.0451 0.1572 0.0159 0.1101 0.0565 0.0552 0.0521 0.0919 0.0517 0.113 0.107 0.0947 0.1045 0.0386 0.0383 0.0386 0.0377 0.0408 0.0493 0.0522 0.0549 0.046 0.0421 0.0405 0.0402 0.0396 0.0392 0.0476 0.0538 0.0535 0.048 0.05 0.01 0 0 0 0 0 0 0 0 1986-08-18 1995-03-20 2000-06-26 2010-09-27 63 629 229 33 79 38 63 53 264 788 467 121 364 134 264 232 481 1071 828 217 672 240 481 426 1108 1747 1847 500 1547 550 1108 990 1986-08-18 1986-08-18 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaMinnesotaTax-ExemptFund column period compact * ~</div> 63 129 129 33 79 38 53 63 488 264 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaMinnesotaTax-ExemptFund column period compact * ~</div> 467 121 364 134 264 232 481 481 871 828 217 672 240 426 1108 1747 1847 1108 990 500 1547 550 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaMinnesotaTax-ExemptFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaMinnesotaTax-ExemptFund column period compact * ~</div> 0.0001 -0.0499 -0.0099 0.0001 0.0001 0.0001 0.0001 0.0001 0.0142 0.0075 0.0114 0.0154 0.0145 0.0152 0.014 0.0142 0.0164 0.012 0.0121 0.0181 0.0165 0.0169 0.0163 0.0164 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaMinnesotaTax-ExemptFundBarChart column period compact * ~</div> 2006-12-01 2006-12-11 2009-08-03 2004-03-04 2000-06-26 1995-03-20 1975-10-06 <b>Summary of the Fund </b> <b>INVESTMENT OBJECTIVE</b> Columbia Large Value Quantitative Fund (the Fund) seeks to provide shareholders with long-term capital growth. <b>FEES AND EXPENSES OF THE FUND</b> This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A and Class T shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). <b>Shareholder Fees (fees paid directly from your investment)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <b>Example </b> The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote> you invest $10,000 in the applicable class of Fund shares for the periods indicated,</blockquote></li><li style="margin-left:-20px"><blockquote> your investment has a 5% return each year, and</blockquote></li><li style="margin-left:-20px"><blockquote> the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above.</blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>Portfolio Turnover</b> The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent fiscal from October 1, 2011 to July 31, 2012, the Fund&#8217;s portfolio turnover rate was 73% of the average value of its portfolio and for the prior fiscal year ended September 30, 2011, the Fund&#8217;s portfolio turnover rate was 90% of the average value of its portfolio. <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> Under normal market conditions, at least 80% of the Fund&#8217;s net assets (including the amount of any borrowings for investment purposes) will be invested in equity securities of companies with market capitalizations of over $5 billion at the time of purchase or that are within the market capitalization range of companies in the Russell 1000 Value Index (the Index) at the time of purchase. These equity securities generally include common stocks. The market capitalization range and composition of the Index are subject to change. Over time, the capitalizations of the companies in the Index will change. As they do, the size of the companies in which the Fund invests may change. As long as an investment continues to meet the Fund&#8217;s other investment criteria, the Fund may choose to continue to hold a stock even if the company&#8217;s market capitalization falls below the market capitalization of the smallest company held within the Index. The Fund can invest in any economic sector and, at times, it may emphasize one or more particular sectors. The Fund will provide shareholders with at least 60 days&#8217; written notice of any change in the 80% policy. <br/><br/>In pursuit of the Fund&#8217;s objective, Columbia Management Investment Advisers, LLC (the Investment Manager) uses quantitative analysis to evaluate the relative attractiveness of potential investments by considering a variety of factors which may include, among others, valuation, quality and momentum. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br /><br /><b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br /><br /><b>Issuer Risk.</b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br /><br /><b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br /><br /><b>Quantitative Model Risk. </b>Investments selected using quantitative methods may perform differently from the market as a whole. There can be no assurance that these methodologies will enable the Fund to achieve its objective.<br /><br /><b>Sector Risk.</b> At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within an economic sector. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, making the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. The more a fund diversifies its investments, the more it spreads risk and potentially reduces the risks of loss and volatility.<br /><br /><b>Value Securities Risk.</b> Value securities are securities of companies that may have experienced, for example, adverse business, industry or other developments or may be subject to special risks that have caused the securities to be out of favor and, in turn, potentially undervalued. The market value of a portfolio security may not meet the portfolio manager&#8217;s perceived value assessment of that security, or may decline in price, even though the portfolio manager(s) believe the securities are already undervalued. There is also a risk that it may take longer than expected for the value of these investments to rise to the portfolio manager&#8217;s perceived value. In addition, value securities, at times, may not perform as well as growth securities or the stock market in general, and may be out of favor with investors for varying periods of time. <b>PAST PERFORMANCE</b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance. <br /><br />The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br /><br />The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.<br /><br /><b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 18.96% (quarter ended September 30, 2009).</li> <li style="margin-left:-25px">Lowest return for a calendar quarter was &#8211;16.74% (quarter ended March 31, 2009).</li> <li style="margin-left:-25px">Class A year-to-date return was 14.44% at September 30, 2012. </li></ul> <b>Average Annual Total Returns After Applicable Sales Charges</b><br/><br/><b>(for periods ended December 31, 2011)</b> 0.73 Please remember that with any mutual fund investment you may lose money. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. 800.345.6611 columbiamanagement.com <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). 2010-04-30 The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaMinnesotaTax-ExemptFund column period compact * ~</div> 0.0575 0 0 0 0 0 0.0575 0 0 0.01 0.05 0.01 0 0 0 0.01 0 0 <b>Summary of the Fund </b> <b>INVESTMENT OBJECTIVE</b> Columbia Limited Duration Credit Fund (the Fund) seeks to provide shareholders with a level of current income consistent with preservation of capital. <b>FEES AND EXPENSES OF THE FUND</b> This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). <b>Shareholder Fees (fees paid directly from your investment)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <b>Portfolio Turnover</b> The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent fiscal year, the Fund&#8217;s portfolio turnover rate was 106% of the average value of its portfolio. <b>Example </b> The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote> you invest $10,000 in the applicable class of Fund shares for the periods indicated, </blockquote></li><li style="margin-left:-20px"><blockquote> your investment has a 5% return each year, and </blockquote></li><li style="margin-left:-20px"><blockquote> the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above. </blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> Under normal circumstances, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in corporate bonds. The Fund will primarily invest in debt securities with short- and intermediate-term maturities generally similar to those included in the Fund&#8217;s benchmark index. The Fund may invest up to 15% of its net assets in securities rated below investment grade (i.e., junk bonds). Up to 25% of the Fund&#8217;s net assets may be invested in foreign investments, including emerging markets. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br /><br /> <b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index or other funds with similar investment objectives. The Fund may fail to achieve its investment objective(s) and may lose money.<br /><br /> <b>Changing Distribution Level Risk.</b> The amount of the distributions paid by the Fund will vary and generally depends on the amount of interest income and/or dividends received by the Fund on the securities it holds. The Fund may not be able to pay distributions or may have to reduce its distribution level if the interest income and/or dividends the Fund receives from its investments decline.<br /><br /> <b>Credit Risk.</b> Credit risk is the risk that the issuer of a fixed-income security may or will default or otherwise become unable or unwilling, or perceived to be unable or unwilling, to honor a financial obligation, such as making payments to the Fund when due. If the Fund purchases unrated securities, or if the rating of a security is lowered after purchase, the Fund will depend on analysis of credit risk more heavily than usual. Lower quality or unrated securities held by the Fund present greater credit risk as compared to higher-rated securities.<br /><br /> <b>Emerging Market Securities Risk.</b> Securities issued by foreign governments or companies in emerging market countries are more likely to have greater exposure to the risks of investing in foreign securities that are described in Foreign Securities Risk. In addition, emerging market countries are more likely to experience instability resulting, for example, from rapid changes or developments in social, political and economic conditions. Their economies are usually less mature and their securities markets are typically less developed with more limited trading activity (i.e., lower trading volumes and less liquidity) than more developed countries. Emerging market securities tend to be more volatile than securities in more developed markets. Many emerging market countries are heavily dependent on international trade and have fewer trading partners, which makes them more sensitive to world commodity prices and economic downturns in other countries, and some have a higher risk of currency devaluations.<br /><br /> <b>Foreign Securities Risk.</b> Investments in foreign securities involve certain risks not associated with investments in U.S. companies. Foreign securities subject the Fund to the risks associated with investing in the particular country or region, including the political, regulatory, economic, social, diplomatic and other conditions or events occurring in the country, as well as fluctuations in its currency and the risks associated with less developed custody and settlement practices. Foreign securities may be more volatile and less liquid than investments in U.S. companies.<br /><br /> <b>Interest Rate Risk.</b> Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt securities will tend to fall, and if interest rates fall, the values of debt securities will tend to rise. Changes in the value of a debt security usually will not affect the amount of income the Fund receives from it but may affect the value of the Fund&#8217;s shares. In general, the longer the maturity or duration of a debt security, the greater its sensitivity to changes in interest rates. Interest rate declines also may increase prepayments of debt obligations, which, in turn, would increase prepayment risk. As interest rates rise or spreads widen, the likelihood of prepayment decreases.<br /><br /> <b>Issuer Risk.</b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br /><br /> <b>Liquidity Risk.</b> Liquidity risk is the risk associated with a lack of marketability of investments which may make it difficult to sell the investment at a desirable time or price. The Fund may have to lower the selling price, sell other investments, or forego another, more appealing investment opportunity. Judgment plays a larger role in valuing these investments as compared to valuing more liquid investments.<br /><br /> <b>Low and Below Investment Grade (High-Yield) Securities Risk.</b> Securities with the lowest investment grade rating and securities rated below investment grade (commonly called &#8220;high-yield&#8221; or &#8220;junk&#8221; bonds) and unrated securities of comparable quality expose the Fund to a greater risk of loss of principal and income than a fund that invests solely or primarily in investment grade securities. In addition, these investments have greater price fluctuations and are more likely to experience a default than higher-rated securities. High-yield securities are considered to be predominantly speculative with respect to the issuer&#8217;s capacity to pay interest and repay principal.<br /><br /> <b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br /><br /> <b>Sector Risk.</b> At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within an economic sector. Companies in the same economic sector may be similarly affected by economic, regulatory, political or market events or conditions, making the Fund more vulnerable to unfavorable developments in that economic sector than funds that invest more broadly. The more a fund diversifies its investments, the more it spreads risk and potentially reduces the risks of loss and volatility. <b>PAST PERFORMANCE</b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance as well as the Fund&#8217;s former benchmark. <br /><br /> The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class that commenced operations before the periods ended shown in the table below include the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. Class R5 shares of the Fund commenced operations after the periods ended shown in the table below and, therefore, performance is not yet available. Class R4 shares of the Fund did not commence operations prior to the date of this prospectus and, therefore, performance is not yet available. The returns shown for all periods for any share class that does not have available performance are the returns of Class A shares (without applicable sales charges) of the Fund.<br /><br /> Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br /><br /> The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.<br /><br /> <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 5.06% (quarter ended September 30, 2009).</li> <li style="margin-left:-25px">Lowest return for a calendar quarter was -3.46% (quarter ended December 31, 2008).</li> <li style="margin-left:-25px">Class A year-to-date return was 5.11% at September 30, 2012. </li></ul> <b>Average Annual Total Returns After Applicable Sales Charges (for periods ended December 31, 2011)</b> November 30, 2013 1.06 other expenses for Class R4 and Class R5 shares are based on estimated amounts for the Fund&#8217;s current fiscal year. Columbia Minnesota Tax-Exempt Fund (the Fund) seeks to provide shareholders with a high level of income generally exempt from federal income tax as well as from Minnesota state and local tax. <b>Summary of the Fund </b> <b>INVESTMENT OBJECTIVE</b> <b>FEES AND EXPENSES OF THE FUND</b> This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). <b>Shareholder Fees (fees paid directly from your investment)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <b>Example </b> The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote> you invest $10,000 in the applicable class of Fund shares for the periods indicated, </blockquote></li><li style="margin-left:-20px"><blockquote> your investment has a 5% return each year, and </blockquote></li><li style="margin-left:-20px"><blockquote> the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above. </blockquote></li></ul>Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>Portfolio Turnover</b> The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent period from September 1, 2011 to July 31, 2012, the Fund&#8217;s portfolio turnover rate was 8% of the average value of its portfolio and for the prior fiscal year ended August 31, 2011, the Fund&#8217;s portfolio turnover rate was 22% of the average value of its portfolio. <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> The Fund is a non-diversified mutual fund. Under normal market conditions, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in municipal obligations that are generally exempt from federal income tax as well as from Minnesota state and local income tax. The Fund may invest more than 25% of its total assets in a particular segment of the municipal securities market or in industrial revenue bonds. The Fund also may invest up to 20% of its net assets in debt obligations whose interest is subject to the alternative minimum tax. Additionally, the Fund may invest up to 25% of its net assets in securities rated below investment grade (commonly called &#8220;high yield securities&#8221; or &#8220;junk bonds&#8221;).<br/><br/>The Fund may invest in fixed income securities of any maturity and does not seek to maintain a particular dollar-weighted average maturity. Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br/><br/><b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br/><br/><b>Credit Risk.</b> Credit risk is the risk that the issuer of a fixed-income security may or will default or otherwise become unable or unwilling, or is perceived to be unable or unwilling, to honor a financial obligation, such as making payments to the Fund when due. If the Fund purchases unrated securities, or if the rating of a security is lowered after purchase, the Fund will depend on analysis of credit risk more heavily than usual. Unrated securities held by the Fund may present increased credit risk as compared to higher-rated securities.<br/><br/><b>Changing Distribution Level Risk.</b> The amount of the distributions paid by the Fund will vary and generally depends on the amount of interest income and/or dividends received by the Fund on the securities it holds. The Fund may not be able to pay distributions or may have to reduce its distribution level if the interest income and/or dividends the Fund receives from its investments decline.<br/><br/><b>Geographic Concentration Risk/State Risk.</b> Because the Fund invests substantially in municipal securities issued by the state identified in the Fund&#8217;s name and political sub-divisions of that state, the Fund will be particularly affected by adverse tax, legislative, regulatory, demographic or political changes as well as changes impacting the state&#8217;s financial, economic or other condition and prospects. In addition, because of the relatively small number of issuers of tax-exempt securities in the state, the Fund may invest a higher percentage of assets in a single issuer and, therefore, be more exposed to the risk of loss than a fund that invests more broadly. The value of municipal and other securities owned by the Fund also may be adversely affected by future changes in federal or state income tax laws.<br/><br/><b>Interest Rate Risk.</b> Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt securities will tend to fall, and if interest rates fall, the values of debt securities will tend to rise. Changes in the value of a debt security usually will not affect the amount of income the Fund receives from it but may affect the value of the Fund&#8217;s shares. In general, the longer the maturity or duration of a debt security, the greater its sensitivity to changes in interest rates. Interest rate declines also may increase prepayments of debt obligations, which, in turn, would increase prepayment risk. As interest rates rise or spreads widen, the likelihood of prepayment decreases.<br/><br/><b>Issuer Risk.</b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br/><br/><b>Liquidity Risk.</b> Liquidity risk is the risk associated with a lack of marketability of investments which may make it difficult to sell the investment at a desirable time or price. The Fund may have to lower the selling price of its investment, sell other investments, or forego another, more appealing investment opportunity. Judgment plays a larger role in valuing these investments compared to valuing more liquid investments.<br/><br/><b>Low and Below Investment Grade (High-Yield) Securities Risk.</b> Securities with the lowest investment grade rating, securities rated below investment grade (commonly called &#8220;high-yield&#8221; or &#8220;junk&#8221; bonds) and unrated securities of comparable quality expose the Fund to a greater risk of loss of principal and income than a fund that invests solely or primarily in investment grade securities. In addition, these investments have greater price fluctuations, are less liquid and are more likely to experience a default than higher-rated securities. High-yield securities are considered to be predominantly speculative with respect to the issuer&#8217;s capacity to pay interest and repay principal.<br/><br/><b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br/><br/><b>Municipal Securities Risk.</b> Municipal securities may be fully or partially backed by the taxing authority of the local government, by the credit of a private issuer, by the current or anticipated revenues from a specific project or specific assets or by domestic or foreign entities providing credit support, such as letters of credit, guarantees or insurance, and are generally classified into general obligation bonds and special revenue obligations. General obligation bonds are backed by an issuer&#8217;s taxing authority and may be vulnerable to limits on a government&#8217;s power or ability to raise revenue or increase taxes. They may also depend for payment on legislative appropriation and/or funding or other support from other governmental bodies. Revenue obligations are payable from revenues generated by a particular project or other revenue source, and are typically subject to greater risk of default than general obligation bonds because investors can look only to the revenue generated by the project or other revenue source backing the project, rather than to the general taxing authority of the state or local government issuer of the obligations. Because many municipal securities are issued to finance projects in sectors such as education, health care, transportation and utilities, conditions in those sectors can affect the overall municipal market. Municipal securities generally pay interest that, in the opinion of bond counsel, is free from U.S. federal income tax (and, in some cases, the federal alternative minimum tax). There is no assurance that the Internal Revenue Service (IRS) will agree with this opinion.<br/><br/><b>Non-Diversified Fund Risk.</b> The Fund is non-diversified, which generally means that it will invest a greater percentage of its total assets in the securities of fewer issuers than a &#8220;diversified&#8221; fund. This increases the risk that a change in the value of any one investment held by the Fund could affect the overall value of the Fund more than it would affect that of a diversified fund holding a greater number of investments. Accordingly, the Fund&#8217;s value will likely be more volatile than the value of a more diversified fund.<br/><br/><b>Prepayment and Extension Risk.</b> Prepayment and extension risk is the risk that a loan, bond or other security or investment might be called or otherwise converted, prepaid or redeemed before maturity, and the portfolio managers may not be able to invest the proceeds in other investments providing as high a level of income, resulting in a reduced yield to the Fund. As interest rates rise or spreads widen, the likelihood of prepayment decreases. The portfolio managers may be unable to capitalize on securities with higher interest rates or wider spreads because the Fund&#8217;s investments are locked in at a lower rate for a longer period of time.<br/><br/><b>Reinvestment Risk.</b> Reinvestment risk is the risk that the Fund will not be able to reinvest income or principal at the same return it is currently earning. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> 0.1753 <b>PAST PERFORMANCE</b> 0.0283 The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance as well as one or more secondary benchmarks. <br/><br/>The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br/><br/>The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes.<br/><br/><b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 7.67% (quarter ended September 30, 2009).</li> <li style="margin-left:-25px">Lowest return for a calendar quarter was &#8211;5.04% (quarter ended December 31, 2010).</li> <li style="margin-left:-25px">Class A year-to-date return was 6.82% at September 30, 2012. </li></ul> <b>Average Annual Total Returns After Applicable Sales Charges (for periods ended December 31, 2011)</b> You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 50000 0.08 Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. year-to-date return 2012-09-30 0.1444 Highest return 2009-09-30 0.1896 Lowest return 2009-03-31 Please remember that with any mutual fund investment you may lose money. -0.1674 <b>Non-Diversified Fund Risk.</b> The Fund is non-diversified, which generally means that it will invest a greater percentage of its total assets in the securities of fewer issuers than a &#8220;diversified&#8221; fund. This increases the risk that a change in the value of any one investment held by the Fund could affect the overall value of the Fund more than it would affect that of a diversified fund holding a greater number of investments. Accordingly, the Fund&#8217;s value will likely be more volatile than the value of a more diversified fund. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> 800.345.6611 columbiamanagement.com The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The after-tax returns are shown only for Class A shares and will vary for other share classes. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). Please remember that with any mutual fund investment you may lose money. <b>Summary of the Fund </b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. Class R5 shares of the Fund commenced operations after the periods ended shown in the table below and, therefore, performance is not yet available. Class R4 shares of the Fund did not commence operations prior to the date of this prospectus and, therefore, performance is not yet available. <b>INVESTMENT OBJECTIVE</b> 800.345.6611 columbiamanagement.com <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> year-to-date return 2012-09-30 0.0511 Highest return 2009-09-30 0.0506 Lowest return 2008-12-31 Columbia Floating Rate Fund (the Fund) seeks to provide shareholders with a high level of current income and, -0.0346 as a secondary objective, preservation of capital. <b>(calendar year)</b> <b>FEES AND EXPENSES OF THE FUND</b> This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 0.2026 The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. year-to-date return 2012-09-30 The after-tax returns are shown only for Class A shares and will vary for other share classes. <b>Shareholder Fees (fees paid directly from your investment)</b> On December 1, 2011, the Barclays U.S. 1-5 Year Corporate Index (the New Index) replaced the Barclays U.S. 1-5 Year Credit Index (the Former Index) as the Fund&#8217;s primary benchmark. The Fund&#8217;s Investment Manager made this recommendation to the Fund&#8217;s Board of Trustees because the Investment Manager believes that the New Index provides a more appropriate basis for comparing the Fund&#8217;s performance. Information on both the New Index and the Former Index will be included for a one-year transition period. Thereafter, only the New Index will be included. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. <b>(calendar year)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <b>Example </b> Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote> you invest $10,000 in the applicable class of Fund shares for the periods indicated, </blockquote></li><li style="margin-left:-20px"><blockquote> your investment has a 5% return each year, and </blockquote></li><li style="margin-left:-20px"><blockquote> the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above. </blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>Portfolio Turnover</b> The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent fiscal year, the Fund&#8217;s portfolio turnover rate was 42% of the average value of its portfolio. <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> Under normal market conditions, at least 80% of the Fund&#8217;s net assets (including the amount of any borrowings for investment purposes) will be invested in floating rate loans and other floating rate debt securities. These debt obligations will generally be rated non-investment grade by recognized rating agencies (similar to &#8220;junk bonds&#8221;) or, if unrated, be considered to be of comparable quality. Up to 25% of the Fund&#8217;s net assets may be invested in foreign investments. The Fund will provide shareholders with at least 60 days&#8217; written notice of any change in the 80% policy. <br /><br /> Floating rate loans are debt obligations of companies and other similar entities that have interest rates that adjust or &#8220;float&#8221; periodically (normally on a daily, monthly, quarterly or semiannual basis by reference to a base lending rate (such as LIBOR (London Interbank Offered Rate)) plus a premium). Floating rate loans are typically structured and administered by a financial institution that acts as the agent of the lenders participating in the floating rate loan. The Fund may acquire loans directly through the agent or from another holder of the loan by assignment. They are generally valued on a daily basis by independent pricing services. <br /><br /> The Fund normally invests in senior secured floating rate loans. Senior secured floating rate loans ordinarily are secured by specific collateral or assets of the borrower so that holders of the loans will have a claim on those assets senior to the claim of certain other parties in the event of default or bankruptcy by the borrower. These loans usually are senior in rank to other securities issued by the borrower (such as common stock or other debt instruments). The proceeds of the loan primarily are used by the borrower to finance leveraged buy-outs, recapitalizations, dividends to sponsors, mergers and acquisitions, and, to a lesser extent, to finance internal growth or for other corporate purposes. Senior floating rate loans held by the Fund will generally have final maturities of nine years or less. <br /><br /> To the extent the Fund invests in derivatives securities, the Fund may count the value of derivative securities with floating rate loan characteristics towards its 80% policy.<br /><br /> The Fund may also invest in other securities, including investment grade fixed income debt obligations, non-investment grade fixed income debt obligations and certain money market instruments. For purposes of the 80% policy, money market holdings with a remaining maturity of less than 60 days will be deemed floating rate assets. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> The Fund is designed for investors with above-average risk tolerance. Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br /><br /> <b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br /><br /> <b>Changing Distribution Level Risk.</b> The amount of the distributions paid by the Fund will vary and generally depends on the amount of interest income and/or dividends received by the Fund on the securities it holds. The Fund may not be able to pay distributions or may have to reduce its distribution level if the interest income and/or dividends the Fund receives from its investments decline.<br /><br /> <b>Confidential Information Access Risk.</b> The Investment Manager normally will seek to avoid the receipt of material, non-public information (Confidential Information) about the issuers of floating rate loans (including from the issuer itself) being considered for acquisition by the Fund, or held in the Fund. The Investment Manager&#8217;s decision not to receive Confidential Information may disadvantage the Fund and could adversely affect the Fund&#8217;s performance.<br /><br /> <b>Counterparty Risk.</b> Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.<br /><br /> <b>Credit Risk.</b> Credit risk is the risk that loans or other securities in the Fund&#8217;s portfolio may or will decline in price or fail to pay interest or repay principal when due because the borrower of the loan or the issuer of the security may or will default or otherwise become unable or unwilling, or is perceived to be unable or unwilling, to honor its financial obligations (such as making payments to the Fund), including as a result of bankruptcy. Bankruptcies may cause a delay to the Fund in acting on the collateral securing a loan, which may adversely affect the Fund. Further, there is risk that a court could take action adverse to the holders of a loan. A default or expected default of a loan could also make it difficult for the Fund to sell the loan at a price approximating the value previously placed on it. Lower quality or unrated loans or securities held by the Fund may present increased credit risk.<br /><br /> <b>Foreign Securities Risk.</b> Investments in foreign securities involve certain risks not associated with investments in securities of U.S. companies. Foreign securities subject the Fund to the risks associated with investing in the particular country, including the political, regulatory, economic, social, diplomatic and other conditions or events occurring in the country or region, as well as fluctuations in its currency and the risks associated with less developed custody and settlement practices. Foreign securities may be more volatile and less liquid than investments in securities of U.S. companies.<br /><br /> <b>Highly Leveraged Transactions Risk.</b> The loans and other securities in which the Fund invests may include highly leveraged transactions whereby the borrower assumes large amounts of debt in order to have the financial resources to attempt to achieve its business objectives. Loans or securities that are part of highly leveraged transactions involve a greater risk (including default and bankruptcy) than other investments.<br /><br /> <b>Impairment of Collateral Risk.</b> The value of collateral, if any, securing a loan can decline, and may be insufficient to meet the borrower&#8217;s obligations or difficult or costly to liquidate. In addition, the Fund&#8217;s access to collateral may be limited by bankruptcy or other insolvency laws. Further, certain floating rate and other loans may not be fully collateralized and may decline in value.<br /><br /> <b>Interest Rate Risk.</b> Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt securities will tend to fall, and if interest rates fall, the values of debt securities will tend to rise. Changes in the value of a debt security usually will not affect the amount of income the Fund receives from it but may affect the value of the Fund&#8217;s shares. In general, the longer the maturity or duration of a debt security, the greater its sensitivity to changes in interest rates. Interest rate changes also may increase prepayments of debt obligations, which, in turn, would increase prepayment risk. Securities with floating interest rates are typically less sensitive to interest rate changes, but may decline in value if their interest rates do not rise as much as interest rates in general. Because rates on certain floating rate loans and other debt securities reset only periodically, changes in prevailing interest rates (and particularly sudden and significant changes) can be expected to cause fluctuations in the Fund&#8217;s net asset value.<br /><br /> <b>Issuer Risk.</b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br /><br /> <b>Liquidity Risk.</b> Liquidity risk is the risk associated with a lack of marketability of securities which may make it difficult to sell the security at desirable prices. The Fund may have to lower the selling price of its investment, sell other investments, or forego another, more appealing investment opportunity. Floating rate loans generally are subject to legal or contractual restrictions on resale, may trade infrequently, and their value may be impaired when the Fund needs to liquidate such loans. Loans and other securities may trade only in the over-the-counter market rather than on an organized exchange and may be more difficult to purchase or sell at a fair price, which may have a negative impact on the Fund&#8217;s performance.<br /><br /> <b>Low and Below Investment Grade (High-Yield) Securities Risk.</b> Securities with the lowest investment grade rating, securities rated below investment grade (commonly called &#8220;high-yield&#8221; or &#8220;junk&#8221; bonds) and unrated securities of comparable quality expose the Fund to a greater risk of loss of principal and income than a fund that invests solely or primarily in investment grade securities. In addition, these investments have greater price fluctuations, are less liquid and are more likely to experience a default than higher-rated securities. High-yield securities are considered to be predominantly speculative with respect to the issuer&#8217;s capacity to pay interest and repay principal.<br /><br /> <b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br /><br /> <b>Prepayment and Extension Risk.</b> Prepayment and extension risk is the risk that a loan, bond or other security or investment might be called or otherwise converted, prepaid or redeemed before maturity, and the portfolio managers may not be able to invest the proceeds in other investments providing as high a level of income, resulting in a reduced yield to the Fund. As interest rates rise or spreads widen, the likelihood of prepayment decreases. The portfolio managers may be unable to capitalize on securities with higher interest rates or wider spreads because the Fund&#8217;s investments are locked in at a lower rate for a longer period of time.<br /><br /> <b>Reinvestment Risk.</b> Reinvestment risk is the risk that the Fund will not be able to reinvest income or principal at the same return it is currently earning. <b>PAST PERFORMANCE </b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance. <br /><br /> The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. Class R4 shares of the Fund did not commence operations prior to the date of this prospectus and, therefore, performance is not yet available. The returns shown for all periods for any share class that does not have available performance are the returns of Class A shares (without applicable sales charges) of the Fund. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br /><br /> The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.<br /><br /><b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. 0.1746 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaLargeValueQuantitativeFund column period compact * ~</div> Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. <b>Average Annual Total Returns After Applicable Sales Charges<br /><br/>(for periods ended December 31, 2011)</b> Highest return 2009-09-30 You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 0.1599 50000 Lowest return <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaLargeValueQuantitativeFund column period compact * ~</div> 0.42 2008-12-31 -0.2219 Please remember that with any mutual fund investment you may lose money. Class R4 shares of the Fund have not commenced operations as of the date of this prospectus. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. The bar chart shows how the Fund's Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> 800.345.6611 columbiamanagement.com The after-tax returns are shown only for Class A shares and will vary for other share classes. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). During the periods shown:<ul type="square"><li style="margin-left: -20px">Highest return for a calendar quarter was 16.99% (quarter ended June 30, 2009).</li><li style="margin-left: -20px">Lowest return for a calendar quarter was &#150;24.18% (quarter ended December 31, 2008).</li><li style="margin-left: -20px">Class A year-to-date return was 8.34% at September 30, 2012.</li></ul> <b>Summary of the Fund </b> <b>INVESTMENT OBJECTIVE</b> Columbia Money Market Fund (the Fund) seeks to provide shareholders with maximum current income consistent with liquidity and stability of principal. <b>FEES AND EXPENSES OF THE FUND</b> This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. <b>Shareholder Fees (fees paid directly from your investment)</b> <b>(calendar year)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <b>Example </b> The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that:<ul type="square"><li style="margin-left:-20px"><blockquote>you invest $10,000 in the applicable class of Fund shares for the periods indicated, </blockquote></li><li style="margin-left:-20px"><blockquote>your investment has a 5% return each year, and </blockquote></li><li style="margin-left:-20px"><blockquote>the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above. </blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> The Fund&#8217;s assets primarily are invested in money market instruments, such as marketable debt obligations issued by corporations or the U.S. Government or its agencies, bank certificates of deposit, bankers&#8217; acceptances, letters of credit, and commercial paper, including asset-backed commercial paper. The Fund may invest more than 25% of its total assets in money market instruments issued by U.S. banks, U.S. branches of foreign banks and U.S. Government securities. Additionally, the Fund may invest up to 35% of its total assets in U.S. dollar-denominated foreign investments.<br/><br/>Because the Fund seeks to maintain a constant net asset value of $1.00 per share, capital appreciation is not expected to play a role in the Fund&#8217;s return. The Fund&#8217;s yield will vary from day to day.<br/><br/>The Fund restricts its investments to instruments that meet certain maturity and quality standards required by the Securities and Exchange Commission (SEC) for money market funds. For example, the Fund:<ul type="square"><li style="margin-left:-20px"><blockquote>Invests substantially in securities rated in the highest short-term rating category, or deemed to be of comparable quality. However, the Fund is permitted to invest up to 3% of its total assets in securities rated in the second highest short-term rating category, or deemed to be of comparable quality. </blockquote></li><li style="margin-left:-20px"><blockquote> Limits its U.S. dollar-weighted average portfolio maturity to 60 days or less and its U.S. dollar-weighted average life to 120 days or less. </blockquote></li><li style="margin-left:-20px"><blockquote> Buys obligations with remaining maturities of 397 days or less.</blockquote></li><li style="margin-left:-20px"><blockquote>Buys only obligations that are denominated in U.S. dollars and present minimal credit risk.</blockquote></li></ul> <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.<br/><br/>The principal risks associated with an investment in the Fund include:<br/><br/><b>Active Management Risk. </b>Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br/><br/><b>Asset-Backed Securities Risk. </b>The value of the Fund&#8217;s asset-backed securities may be affected by, among other things, changes in interest rates, factors concerning the interests in and structure of the issuer or the originator of the receivables, the creditworthiness of the entities that provide any supporting letters of credit, surety bonds or other credit enhancements, or the market&#8217;s assessment of the quality of underlying assets. Most asset-backed securities are subject to prepayment risk (i.e., the risk that the Fund will have to reinvest the money received in securities that have lower yields). Rising or high interest rates tend to extend the duration of asset-backed securities, resulting in valuations that are volatile and sensitive to changes in interest rates.<br/><br/><b>Credit Risk. </b>Credit risk applies to most fixed income securities, but is generally less of a factor for obligations backed by the &#8220;full faith and credit&#8221; of the U.S. Government. It is the risk that the issuer of a fixed-income security may or will default or otherwise become unable or unwilling, or is perceived to be unable or unwilling, to honor a financial obligation, such as making payments to the Fund when due. If the Fund purchases unrated securities, or if the rating of a security is lowered after purchase, the Fund will depend on analysis of credit risk more heavily than usual. Unrated securities held by the Fund may present increased credit risk as compared to higher-rated securities.<br/><br/><b>Industry Concentration Risk. </b>Investments that are concentrated in a particular industry will make the Fund&#8217;s portfolio value more susceptible to the events or conditions impacting that particular industry. Because the Fund may invest more than 25% of its total assets in money market instruments issued by banks, the value of the Fund may be adversely affected by economic, political or regulatory developments in or that impact the banking industry.<br/><br/><b>Interest Rate Risk. </b>Interest rate risk is the risk of losses attributable to changes in interest rates. A rise in the overall level of interest rates may result in the decline in the prices of fixed-income securities held by the Fund. The Fund&#8217;s yield will vary; it is not fixed for a specific period like the yield on a bank certificate of deposit. Falling interest rates may result in a decline in the Fund&#8217;s income and yield (since the Fund must then invest in lower-yielding fixed-income securities). Under certain circumstances, the yield decline could cause the Fund&#8217;s net yield to be negative (such as when Fund expenses exceed income levels).<br/><br/><b>Money Market Fund Risk. </b>An investment in the Fund is not a bank deposit, and is not insured or guaranteed by the investment manager, the investment manager&#8217;s parent, the FDIC or any other government agency, and it is possible to lose money by investing in the Fund. The Fund seeks to maintain a constant net asset value of $1.00 per share, but the net asset values of money market fund shares can fall, and in infrequent cases in the past have fallen, below $1.00 per share, potentially causing shareholders who redeem their shares at such net asset values to lose money from their original investment. If the net asset value of Fund shares were to fall below $1.00 per share, there is no guarantee that the investment manager or its affiliates would protect the Fund or redeeming shareholders against a loss of principal.<br/><br/><b>Redemption Risk. </b>The Fund may need to sell portfolio securities to meet redemption requests. The Fund could experience a loss when selling portfolio securities to meet redemption requests if there is (i) significant redemption activity by shareholders, including, for example, when a single investor or few large investors make a significant redemption of Fund shares, (ii) a disruption in the normal operation of the markets in which the Fund buys and sells portfolio securities or (iii) the inability of the Fund to sell portfolio securities because such securities are illiquid. In such events, the Fund could be forced to sell portfolio securities at unfavorable prices in an effort to generate sufficient cash to pay redeeming shareholders. The Fund may suspend redemptions or the payment of redemption proceeds when permitted by applicable regulations.<br/><br/><b>Regulatory Risk. </b>Changes in government regulations may adversely affect the value of a security held by the Fund. In addition, the SEC has adopted amendments to money market regulation, imposing new liquidity, credit quality, and maturity requirements on all money market funds. These changes may result in reduced yields for money market funds, including the Fund. The SEC or the Congress may adopt additional reforms to money market regulation, which may impact the operation or performance of the Fund.<br/><br/><b>Reinvestment Risk. </b>Reinvestment risk is the risk that the Fund will not be able to reinvest income or principal at the same return it is currently earning.<br/><br/><b>U.S. Government Obligations Risk. </b>While U.S. Treasury obligations are backed by the &#8220;full faith and credit&#8221; of the U.S. Government, such securities are nonetheless subject to credit risk (i.e., the risk that the U.S. Government may be, or be perceived to be, unable or unwilling to honor its financial obligations, such as making payments). Securities issued or guaranteed by federal agencies or authorities and U.S. Government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. Government. Securities guaranteed by the Federal Deposit Insurance Corporation under its Temporary Liquidity Guarantee Program (TLGP) are subject to certain risks, including whether such securities will continue to trade in line with recent experience in relation to treasury and government agency securities in terms of yield spread and the volatility of such spread, as well as uncertainty as to how such securities will trade in the secondary market and whether that market will be liquid or illiquid. The TLGP is subject to change. <b>PAST PERFORMANCE </b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance has varied for each full calendar year shown. <br/><br/>The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities.<br/><br/><b>The Fund&#8217;s past performance is no guarantee of how the Fund will perform in the future.</b> Updated performance information, including current 7-day yield, can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. <b>CLASS A ANNUAL TOTAL RETURNS</b> During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 1.20% (quarter ended September 30, 2006).</li> <li style="margin-left:-25px">Lowest return for a calendar quarter was 0.00% (quarter ended March 31, 2011).</li> <li style="margin-left:-25px">Class A year-to-date return was 0.01% at September 30, 2012. </li></ul> <b>Average Annual Total Returns After Applicable Sales Charges</b><br/><br/><b>(for periods ended December 31, 2011)</b> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaFloatingRateFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaFloatingRateFund column period compact * ~</div> Highest return 2009-09-30 0.0767 Lowest return <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaFloatingRateFund column period compact * ~</div> 2010-12-31 -0.0504 year-to-date return 2012-09-30 0.0682 <b>(calendar year)</b> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaFloatingRateFundBarChart column period compact * ~</div> Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. <b>The Fund&#8217;s past performance is no guarantee of how the Fund will perform in the future.</b> year-to-date return 2012-09-30 0.0001 Highest return 2006-09-30 0.012 Lowest return 2011-03-31 0 800.345.6611 columbiamanagement.com 0.0127 0.0044 0.0062 0.0255 <b>Summary of the Fund </b> 0.0447 <b>INVESTMENT OBJECTIVE</b> 0.048 Columbia Large Core Quantitative Fund (the Fund) seeks to provide shareholders with long-term capital growth. 0.0226 <b>FEES AND EXPENSES OF THE FUND</b> 0.001 This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 0.0002 0.0001 <b>Shareholder Fees (fees paid directly from your investment)</b> <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</b> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaLargeValueQuantitativeFund column period compact * ~</div> <b>Example </b> The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote>you invest $10,000 in the applicable class of Fund shares for the periods indicated,</blockquote></li> <li style="margin-left:-20px"><blockquote>your investment has a 5% return each year, and</blockquote></li> <li style="margin-left:-20px"><blockquote>the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above.</blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: <b>Portfolio Turnover</b> The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; 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&#8217;s performance. During the most recent fiscal year, the Fund&#8217;s portfolio turnover rate was 71% of the average value of its portfolio. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance has varied for each full calendar year shown. <b>PRINCIPAL INVESTMENT STRATEGIES OF THE FUND</b> Under normal market conditions, at least 80% of the Fund&#8217;s net assets (including the amount of any borrowings for investment purposes) are invested in equity securities of companies with market capitalizations greater than $5 billion at the time of purchase or that are within the market capitalization range of companies in the S&amp;P 500 Index (the Index) at the time of purchase. These equity securities generally include common stocks. The market capitalization range and composition of the Index are subject to change. Over time, the capitalizations of the companies in the Index will change. As they do, the size of the companies in which the Fund invests may change. As long as an investment continues to meet the Fund&#8217;s other investment criteria, the Fund may choose to continue to hold a stock even if the company&#8217;s market capitalization falls below the market capitalization of the smallest company held within the Index. The Fund will provide shareholders with at least 60 days&#8217; written notice of any change in the 80% policy. <br /><br /> In pursuit of the Fund&#8217;s objective, Columbia Management Investment Advisers, LLC (the Investment Manager) uses quantitative analysis to evaluate the relative attractiveness of potential investments by considering a variety of factors which may include, among others, valuation, quality and momentum. <br /><br /> The Fund&#8217;s investment strategy may involve frequent trading of portfolio securities. This may cause the Fund to incur higher transaction costs (which may adversely affect the Fund&#8217;s performance) and may increase taxable distributions for shareholders. <b>PRINCIPAL RISKS OF INVESTING IN THE FUND</b> The Fund is designed for investors with above-average risk tolerance. Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br /><br /> <b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br /><br /> <b>Frequent Trading Risk.</b> The portfolio managers may actively and frequently trade investments in the Fund&#8217;s portfolio to carry out its investment strategies. Frequent trading of investments increases the possibility that the Fund, as relevant, will realize taxable capital gains (including short-term capital gains, which are generally taxable to shareholders at higher rates than long-term capital gains for U.S. federal income tax purposes), which could reduce the Fund&#8217;s after-tax return. Frequent trading can also mean higher brokerage and other transaction costs, which could reduce the Fund&#8217;s return. The trading costs and tax effects associated with portfolio turnover may adversely affect the Fund&#8217;s performance.<br /><br /> <b>Growth Securities Risk.</b> Growth securities typically trade at a higher multiple of earnings than other types of equity securities. Accordingly, the market values of growth securities may be more sensitive to adverse economic or other circumstances or changes in current or expected earnings than the market values of other types of securities. In addition, growth securities, at times, may not perform as well as value securities or the stock market in general, and may be out of favor with investors for varying periods of time.<br /><br /> <b>Issuer Risk. </b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br /><br /> <b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br /><br /> <b>Quantitative Model Risk. </b> Investments selected using quantitative methods may perform differently from the market as a whole. There can be no assurance that these methodologies will enable the Fund to achieve its objective. <b>PAST PERFORMANCE</b> The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance. <br /><br /> The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. The returns shown for all periods for any share class that does not have available performance are the returns of Class A shares (without applicable sales charges) of the Fund. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br /><br /> The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.<br /><br /> <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 15.99% (quarter ended September 30, 2009).</li><li style="margin-left:-25px">Lowest return for a calendar quarter was &#8211;22.19% (quarter ended December 31, 2008).</li> <li style="margin-left:-25px">Class A year-to-date return was 17.46% at September 30, 2012.</li></ul> <b>(calendar year)</b> <b>Average Annual Total Returns After Applicable Sales Charges</b><br/><br/><b>(for periods ended December 31, 2011)</b> Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 50000 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaLargeValueQuantitativeFund column period compact * ~</div> November 30, 2013 0.71 Please remember that with any mutual fund investment you may lose money. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. 800.345.6611 columbiamanagement.com The after-tax returns are shown only for Class A shares and will vary for other share classes. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaFloatingRateFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaLargeCoreQuantitativeFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaMoneyMarketFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaMoneyMarketFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaLargeCoreQuantitativeFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaMoneyMarketFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaLargeCoreQuantitativeFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaLargeCoreQuantitativeFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaMoneyMarketFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaMoneyMarketFundBarChart column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaLargeValueQuantitativeFundBarChart column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaMoneyMarketFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaLargeValueQuantitativeFund column period compact * ~</div> Highest return 2009-06-30 0.1699 Lowest return 2008-12-31 -0.2418 year-to-date return 2012-09-30 0.0834 The following example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that: <ul type="square"><li style="margin-left:-20px"><blockquote>you invest $10,000 in the applicable class of Fund shares for the periods indicated, </blockquote></li><li style="margin-left:-20px"><blockquote> your investment has a 5% return each year, and</blockquote></li><li style="margin-left:-20px"><blockquote> the Fund&#8217;s total annual operating expenses remain the same as shown in the Annual Fund Operating Expense table above. </blockquote></li></ul>Since the waivers and/or reimbursements shown in the Annual Fund Operating Expenses table above expire as indicated in the preceding table, they are only reflected in the 1 year example and the first year of the other examples. Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be: Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:<br /><br /> <b>Active Management Risk.</b> Due to its active management, the Fund could underperform its benchmark index and/or other funds with a similar investment objective. The Fund may fail to achieve its investment objective and you may lose money.<br /><br /> <b>Credit Risk.</b> Credit risk applies to most fixed income securities, but is generally less of a factor for obligations backed by the &#8220;full faith and credit&#8221; of the U.S. Government. It is the risk that the issuer of a fixed-income security may or will default or otherwise become unable or unwilling, or is perceived to be unable or unwilling, to honor a financial obligation, such as making payments to the Fund when due. If the Fund purchases unrated securities, or if the rating of a security is lowered after purchase, the Fund will depend on analysis of credit risk more heavily than usual. Unrated securities held by the Fund may present increased credit risk as compared to higher-rated securities.<br /><br /> <b>Interest Rate Risk.</b> Interest rate risk is the risk of losses attributable to changes in interest rates. In general, if prevailing interest rates rise, the values of debt securities will tend to fall, and if interest rates fall, the values of debt securities will tend to rise. Changes in the value of a debt security usually will not affect the amount of income the Fund receives from it but may affect the value of the Fund&#8217;s shares. In general, the longer the maturity or duration of a debt security, the greater its sensitivity to changes in interest rates. Interest rate declines also may increase prepayments of debt obligations, which, in turn, would increase prepayment risk. As interest rates rise or spreads widen, the likelihood of prepayment decreases.<br /><br /> <b>Issuer Risk. </b> An issuer in which the Fund invests may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund&#8217;s performance. Poor performance may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters or other events, conditions or factors.<br /><br /> <b>Liquidity Risk.</b> Liquidity risk is the risk associated with a lack of marketability of investments which may make it difficult to sell the investment at a desirable time or price. The Fund may have to lower the selling price, sell other investments, or forego another, more appealing investment opportunity. Judgment plays a larger role in valuing these investments as compared to valuing more liquid investments.<br /><br /> <b>Low and Below Investment Grade (High-Yield) Securities Risk.</b> Securities with the lowest investment grade rating, securities rated below investment grade (commonly called &#8220;high-yield&#8221; or &#8220;junk&#8221; bonds) and unrated securities of comparable quality expose the Fund to a greater risk of loss of principal and income than a fund that invests solely or primarily in investment grade securities. In addition, these investments have greater price fluctuations, are less liquid and are more likely to experience a default than higher-rated securities. High-yield securities are considered to be predominantly speculative with respect to the issuer&#8217;s capacity to pay interest and repay principal.<br /><br /> <b>Market Risk.</b> Market risk refers to the possibility that the market values of securities or other investments that the Fund holds will fall, sometimes rapidly or unpredictably, or fail to rise. An investment in the Fund could lose money over short or even long periods. In general, equity securities tend to have greater price volatility than debt securities.<br /><br /> <b>Municipal Securities Risk.</b> Municipal securities may be fully or partially backed by the taxing authority of the local government, by the credit of a private issuer, by the current or anticipated revenues from a specific project or specific assets or by domestic or foreign entities providing credit support, such as letters of credit, guarantees or insurance, and are generally classified into general obligation bonds and special revenue obligations. General obligation bonds are backed by an issuer&#8217;s taxing authority and may be vulnerable to limits on a government&#8217;s power or ability to raise revenue or increase taxes. They may also depend for payment on legislative appropriation and/or funding or other support from other governmental bodies. Revenue obligations are payable from revenues generated by a particular project or other revenue source, and are typically subject to greater risk of default than general obligation bonds because investors can look only to the revenue generated by the project or other revenue source backing the project, rather than to the general taxing authority of the state or local government issuer of the obligations. Because many municipal securities are issued to finance projects in sectors such as education, health care, transportation and utilities, conditions in those sectors can affect the overall municipal market. Municipal securities generally pay interest that, in the opinion of bond counsel, is free from U.S. federal income tax (and, in some cases, the federal alternative minimum tax). There is no assurance that the Internal Revenue Service (IRS) will agree with this opinion.<br /><br /> <b>Prepayment and Extension Risk.</b> Prepayment and extension risk is the risk that a loan, bond or other security or investment might be called or otherwise converted, prepaid or redeemed before maturity, and the portfolio managers may not be able to invest the proceeds in other investments providing as high a level of income, resulting in a reduced yield to the Fund. As interest rates rise or spreads widen, the likelihood of prepayment decreases. The portfolio managers may be unable to capitalize on securities with higher interest rates or wider spreads because the Fund&#8217;s investments are locked in at a lower rate for a longer period of time.<br /><br /> <b>Reinvestment Risk.</b> Reinvestment risk is the risk that the Fund will not be able to reinvest income or principal at the same return it is currently earning.<br /><br /> <b>State-Specific Municipal Securities Risk</b>. Securities issued by a particular state and its instrumentalities are subject to the risk of unfavorable developments in such state. Because the Fund may invest without limit in municipal securities of issuers in any state, the value of Fund shares may be more volatile than the value of shares of funds that limit their investments in municipal securities of issuers in any one state, as unfavorable developments have the potential to impact more significantly the Fund than funds that limit their investments in municipal securities of any one state. A municipal security can be significantly affected by adverse tax, legislative, regulatory, demographic or political changes as well as changes in the state&#8217;s financial, economic or other condition and prospects. The SAI provides greater detail about risks specific to the municipal securities in which the Fund invests, which investors should carefully consider. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. The table below the bar chart compares the Fund&#8217;s returns (after applicable sales charges) for the periods shown with those of a broad measure of market performance as well as one or more secondary benchmarks. <br /><br /> The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class includes the returns of the Fund&#8217;s Class A shares (adjusted to reflect the higher class-related operating expenses of such classes, where applicable) for periods prior to its inception date. The returns shown for all periods for any share class that does not have available performance are the returns of Class A shares (without applicable sales charges) of the Fund. Except for differences in expenses and sales charges (where applicable), the share classes of the Fund have annual returns substantially similar because all share classes of the Fund invest in the same portfolio of securities. <br /><br /> The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.<br /><br /><b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com. <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaLargeCoreQuantitativeFundBarChart column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaLargeCoreQuantitativeFund column period compact * ~</div> 0.0595 0.0595 0.0543 0.0536 0.0965 0.1179 0.107 0.1096 0.0334 0.0334 0.0344 0.032 0.0361 0.044 0.0522 0.0418 0.0392 0.0365 0.0373 0.0364 0.0367 0.0446 0.0538 0.0477 Please remember that with any mutual fund investment you may lose money. The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> columbiamanagement.com The after-tax returns are shown only for Class A shares and will vary for other share classes. The after-tax returns shown in the table below are calculated using the highest historical individual U.S. federal marginal income tax rates and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-deferred accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). During the periods shown:<ul type="square"><li style="margin-left:-25px">Highest return for a calendar quarter was 8.12% (quarter ended September 30, 2009).</li> <li style="margin-left:-25px">Lowest return for a calendar quarter was -5.11% (quarter ended December 31, 2010).</li> <li style="margin-left:-25px">Class A year-to-date return was 9.61% at September 30, 2012. </li></ul> <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> 0.08 0.0376 0.0361 0.0298 0.0428 0.0159 -0.0674 0.1511 0.0195 0.1118 1976-11-24 1976-11-24 1976-11-24 1995-03-20 2000-06-26 2010-09-27 You may qualify for sales charge discounts on Class A and Class T shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 50000 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleShareholderFeesColumbiaAMT-FreeTax-ExemptBondFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualFundOperatingExpensesColumbiaAMT-FreeTax-ExemptBondFund column period compact * ~</div> Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleTransposedColumbiaAMT-FreeTax-ExemptBondFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleExpenseExampleNoRedemptionTransposedColumbiaAMT-FreeTax-ExemptBondFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAnnualTotalReturnsColumbiaAMT-FreeTax-ExemptBondFundBarChart column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaAMT-FreeTax-ExemptBondFund column period compact * ~</div> Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. Highest return 2009-09-30 0.0812 Lowest return 2010-12-31 -0.0511 year-to-date return 2012-09-30 0.0961 Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. <b>Average Annual Total Returns After Applicable Sales Charges (for periods ended December 31, 2011)</b> November 30, 2013 <b>(calendar year)</b> November 30, 2013 2003-06-19 Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. other expenses for Class R4 shares are based on estimated amounts for the Fund&#8217;s current fiscal year. You may qualify for sales charge discounts on Class A shares of the Fund if you and members of your immediate family (that share the same mailing address) agree to invest in the future at least $50,000 in certain classes of shares of eligible funds distributed by Columbia Management Investment Distributors, Inc. More information about these and other discounts is available from your financial intermediary and under &#8220;Reductions/Waivers of Sales Charges &#8212; Front-End Sales Charge Reductions&#8221; on page S.9 of this prospectus and on page D.1 of Appendix D in the Fund&#8217;s Statement of Additional Information (SAI). 50000 <b>CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)</b> 2008-08-01 2008-08-01 <b>(calendar year)</b> <b>The Fund&#8217;s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.</b> The bar chart shows how the Fund&#8217;s Class A share performance (without sales charges) has varied for each full calendar year shown. If the sales charges were reflected, returns shown would be lower. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares. November 30, 2013 <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaFloatingRateFund column period compact * ~</div> <div style="display:none">~ http://www.columbiamanagement.com/role/ScheduleAverageAnnualTotalReturnsTransposedColumbiaLimitedDurationCreditFund column period compact * ~</div> Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. This charge decreases over time. This charge applies to investors who buy Class C shares and redeem them within one year of purchase, with certain limited exceptions. Other expenses have been restated to reflect contractual changes to certain fees paid by the Fund. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 1.20% for Class A, 1.95% for Class B, 1.95% for Class C, 0.75% for Class I, 1.05% for Class K, 1.45% for Class R, 0.80% for Class R5, 1.20% for Class W and 0.95% for Class Z. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 0.81% for Class A, 1.56% for Class B, 1.56% for Class C and 0.56% for Class Z. Other expenses for Class A, Class B, Class C, Class K, Class W and Class Z shares have been restated to reflect contractual changes to certain fees paid by the Fund and other expenses for Class R4 and Class R5 shares are based on estimated amounts for the Fund's current fiscal year. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 0.85% for Class A, 1.60% for Class B, 1.60% for Class C, 0.49% for Class I, 0.79% for Class K, 0.60% for Class R4, 0.54% for Class R5, 0.85% for Class W and 0.60% for Class Z. Class R4 shares of the Fund have not commenced operations as of the date of this prospectus. On December 1, 2011, the Barclays U.S. 1-5 Year Corporate Index (the New Index) replaced the Barclays U.S. 1-5 Year Credit Index (the Former Index) as the Fund's primary benchmark. The Fund's Investment Manager made this recommendation to the Fund's Board of Trustees because the Investment Manager believes that the New Index provides a more appropriate basis for comparing the Fund's performance. Information on both the New Index and the Former Index will be included for a one-year transition period. Thereafter, only the New Index will be included. Since Inception 6/30/03. Credit Suisse Leveraged Loan Index Life return is as of 2/28/06. Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. This charge decreases over time. This charge applies to investors who buy Class C shares and redeem them within one year of purchase, with certain limited exceptions. Other expenses for Class A, Class B, Class C, Class K, Class R, Class R5, Class W and Class Z shares have been restated to reflect contractual changes to certain fees paid by the Fund and other expenses for Class R4 shares are based on estimated amounts for the Fund's current fiscal year. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 1.09% for Class A, 1.84% for Class B, 1.84% for Class C, 0.74% for Class I, 1.04% for Class K, 1.34% for Class R, 0.84% for Class R4, 0.79% for Class R5, 1.09% for Class W and 0.84% for Class Z. Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. This charge applies to investors who buy Class C shares and redeem them within one year of purchase, with certain limited exceptions. Other expenses have been restated to reflect contractual changes to certain fees paid by the Fund. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 0.62% for Class A, 1.27% for Class B, 1.27% for Class C, 0.32% for Class I, 0.77% for Class R, 0.37% for Class R5, 0.62% for Class W and 0.52% for Class Z. Contingent deferred sales charges (CDSC) on certain investments of between $1 million and $50 million redeemed within 18 months of purchase, charged as follows: 1.00% CDSC if redeemed within 12 months of purchase, and 0.50% CDSC if redeemed more than 12, but less than 18, months of purchase, with certain limited exceptions. Other expenses for Class A, Class B, Class C, Class K, Class R, Class T, Class W and Class Z shares have been restated to reflect contractual changes to the fees paid by the Fund. The Fund indirectly bears a pro rata portion of the fees and expenses of funds in which it invests. "Total Annual Fund Operating Expenses" in the table may not match "Net Expenses" in the Financial Highlights section of this prospectus because it does not include such acquired fund fees and expenses. Columbia Management Investment Advisers, LLC and certain of its affiliates have contractually agreed to waive fees and/or to reimburse expenses (excluding certain fees and expenses, such as transaction costs and certain other investment related expenses, interest, taxes, acquired fund fees and expenses, and extraordinary expenses) until November 30, 2013, unless sooner terminated at the sole discretion of the Fund's Board of Trustees. Under this agreement, the Fund's net operating expenses will not, subject to applicable exclusions, exceed the annual rates of 1.18% for Class A, 1.93% for Class B, 1.93% for Class C, 0.73% for Class I, 1.03% for Class K, 1.43% for Class R, 1.23% for Class T, 1.18% for Class W and 0.93% for Class Z. Other expenses have been restated to reflect contractual changes to the fees paid by the Fund. 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