0001193125-23-029602.txt : 20230209 0001193125-23-029602.hdr.sgml : 20230209 20230209124502 ACCESSION NUMBER: 0001193125-23-029602 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230209 DATE AS OF CHANGE: 20230209 EFFECTIVENESS DATE: 20230209 FILER: COMPANY DATA: COMPANY CONFORMED NAME: COLUMBIA ACORN TRUST CENTRAL INDEX KEY: 0000002110 IRS NUMBER: 362692100 STATE OF INCORPORATION: MA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-34223 FILM NUMBER: 23605165 BUSINESS ADDRESS: STREET 1: 71 S. WACKER DRIVE, SUITE 2500 CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3126349200 MAIL ADDRESS: STREET 1: 71 S. WACKER DRIVE, SUITE 2500 CITY: CHICAGO STATE: IL ZIP: 60606 FORMER COMPANY: FORMER CONFORMED NAME: LIBERTY ACORN TRUST DATE OF NAME CHANGE: 20010424 FORMER COMPANY: FORMER CONFORMED NAME: ACORN INVESTMENT TRUST DATE OF NAME CHANGE: 19940204 FORMER COMPANY: FORMER CONFORMED NAME: ACORN FUND INC DATE OF NAME CHANGE: 19920703 0000002110 S000009184 Columbia Acorn Fund C000024954 Columbia Acorn Fund Class A LACAX C000024956 Columbia Acorn Fund Class C LIACX C000024957 Columbia Acorn Fund Institutional Class ACRNX C000122735 Columbia Acorn Fund Advisor Class CEARX C000122736 Columbia Acorn Fund Institutional 2 Class CRBRX C000122737 Columbia Acorn Fund Institutional 3 Class CRBYX 0000002110 S000009186 Columbia Acorn USA C000024962 Columbia Acorn USA Class A LAUAX C000024964 Columbia Acorn USA Class C LAUCX C000024965 Columbia Acorn USA Institutional Class AUSAX C000122740 Columbia Acorn USA Advisor Class CUSAX C000122741 Columbia Acorn USA Institutional 2 Class CYSRX C000122742 Columbia Acorn USA Institutional 3 Class CUSYX 497 1 d463273d497.htm COLUMBIA ACORN TRUST COLUMBIA ACORN TRUST
Supplement dated February 9, 2023
to the Prospectus, Summary Prospectus, and Statement of Additional Information (SAI), as supplemented, of the
following fund (the Fund):
Fund Prospectus, Summary Prospectus and SAI Dated
Columbia Acorn Trust  
 Columbia Acorn® Fund May 1, 2022
Effective February 10, 2023 (the Effective Date), the portfolio manager information under the caption “Fund Management” in the Summary Prospectus and in the "Summary of the Fund" section of the Prospectus is hereby superseded and replaced with the following:
    
Portfolio Management   Title   Role with Fund   Service with the Fund Since
Erika K. Maschmeyer, CFA   Director of Research (U.S.),
Portfolio Manager and Analyst 		  Lead Portfolio Manager
since February 2023 		  2016
John L. Emerson, CFA   Portfolio Manager and Analyst   Portfolio Manager
since April 2021 		  2003
On the Effective Date, the information under the "Primary Service Provider Contracts" caption in the "More Information About the Fund" section of the Prospectus is hereby revised to remove the fifth and sixth paragraphs under the sub-caption "The Investment Manager" and is further revised to supersede and replace the information under the sub-caption "Portfolio Managers" with the following:
    
Portfolio Management   Title   Role with Fund   Service with the Fund Since
Erika K. Maschmeyer, CFA   Director of Research (U.S.),
Portfolio Manager and Analyst 		  Lead Portfolio Manager
since February 2023 		  2016
John L. Emerson, CFA   Portfolio Manager and Analyst   Portfolio Manager
since April 2021 		  2003
Ms. Maschmeyer has been associated with the Investment Manager as an investment professional since 2016. Ms. Maschmeyer heads the Investment Manager's U.S. equity research efforts and has been a Vice President of the Trust since March 2020. Prior to joining the Investment Manager, Ms. Maschmeyer was a research analyst at an investment advisory firm where she was responsible for U.S. consumer discretionary/staples investments. Ms. Maschmeyer began her investment career in 2001 and earned a B.A. from Denison University and an M.B.A from the University of Chicago.
Mr. Emerson has been associated with the Investment Manager or its predecessors as an investment professional since 2003 and has been a Vice President of the Trust since March 2020. Prior to joining the Investment Manager, Mr. Emerson was an analyst at an equity research firm. Mr. Emerson began his investment career in 2002 and earned a B.S. from the University of Missouri and an M.B.A from the University of Chicago.
The rest of the Prospectus and Summary Prospectus remain unchanged.
On the Effective Date, all references to Daniel Cole in the SAI are hereby removed. The rest of the SAI remains unchanged. 
Shareholders should retain this Supplement for future reference.
SUP110_12_010_(02/23)

Supplement dated February 9, 2023
to the Prospectus, Summary Prospectus, and Statement of Additional Information (SAI), each as supplemented, of
the following fund (the Fund):
Fund Prospectus, Summary Prospectus and SAI Dated
Columbia Acorn Trust  
 Columbia Acorn USA® May 1, 2022
Effective February 10, 2023 (the Effective Date), the portfolio manager information under the caption “Fund Management” in the Summary Prospectus and in the "Summary of the Fund" section of the Prospectus is hereby superseded and replaced with the following:
    
Portfolio Management   Title   Role with Fund   Service with the Fund Since
Erika K. Maschmeyer, CFA   Director of Research (U.S.),
Portfolio Manager and Analyst 		  Lead Portfolio Manager
since February 2023 		  2016
John L. Emerson, CFA   Portfolio Manager and Analyst   Portfolio Manager
since April 2021 		  2003
On the Effective Date, the information under the "Primary Service Provider Contracts" caption in the "More Information About the Fund" section of the Prospectus is hereby revised to remove the fifth and sixth paragraphs under the sub-caption "The Investment Manager" and is further revised to supersede and replace the information under the sub-caption "Portfolio Managers" with the following:
    
Portfolio Management   Title   Role with Fund   Service with the Fund Since
Erika K. Maschmeyer, CFA   Director of Research (U.S.),
Portfolio Manager and Analyst 		  Lead Portfolio Manager
since February 2023 		  2016
John L. Emerson, CFA   Portfolio Manager and Analyst   Portfolio Manager
since April 2021 		  2003
Ms. Maschmeyer has been associated with the Investment Manager as an investment professional since 2016. Ms. Maschmeyer heads the Investment Manager's U.S. equity research efforts and has been a Vice President of the Trust since March 2020. Prior to joining the Investment Manager, Ms. Maschmeyer was a research analyst at an investment advisory firm where she was responsible for U.S. consumer discretionary/staples investments. Ms. Maschmeyer began her investment career in 2001 and earned a B.A. from Denison University and an M.B.A from the University of Chicago.
Mr. Emerson has been associated with the Investment Manager or its predecessors as an investment professional since 2003 and has been a Vice President of the Trust since March 2020. Prior to joining the Investment Manager, Mr. Emerson was an analyst at an equity research firm. Mr. Emerson began his investment career in 2002 and earned a B.S. from the University of Missouri and an M.B.A from the University of Chicago.
The rest of the Prospectus and Summary Prospectus remain unchanged.
On the Effective Date, all references to Daniel Cole in the SAI are hereby removed. The rest of the SAI remains unchanged. 
Shareholders should retain this Supplement for future reference.
SUP115_12_010_(02/23)