0001193125-20-139983.txt : 20200512 0001193125-20-139983.hdr.sgml : 20200512 20200512111538 ACCESSION NUMBER: 0001193125-20-139983 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20200512 DATE AS OF CHANGE: 20200512 EFFECTIVENESS DATE: 20200512 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: 20867576 BUSINESS ADDRESS: STREET 1: 227 W MONROE STE 3000 CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3126349200 MAIL ADDRESS: STREET 1: 227 W MONROE STE 3000 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 S000033622 Columbia Acorn Emerging Markets Fund C000103328 Columbia Acorn Emerging Markets Fund Class A CAGAX C000103329 Columbia Acorn Emerging Markets Fund Class C CGMCX C000103331 Columbia Acorn Emerging Markets Fund Institutional Class CEFZX C000122753 Columbia Acorn Emerging Markets Fund Advisor Class CAERX C000122754 Columbia Acorn Emerging Markets Fund Institutional 2 Class CANRX C000128887 Columbia Acorn Emerging Markets Fund Institutional 3 Class CPHRX 497 1 d876658d497.htm COLUMBIA ACORN TRUST Columbia Acorn Trust
Supplement dated May 12, 2020
to the Prospectus, Summary Prospectus and the Statement of Additional Information (SAI) (each as previously
supplemented) for the following Fund:
Fund Prospectus, Summary Prospectus and SAI Dated
Columbia Acorn Trust  
 Columbia Acorn Emerging Markets FundSM 05/01/2020
Charles C. Young, a co-portfolio manager of Columbia Acorn Emerging Markets Fund (the "Fund"), has announced that he will step down as portfolio manager of the Fund effective May 22, 2020. Satoshi Matsunaga, current co-portfolio manager of the Fund, will continue as sole portfolio manager of the Fund after that date and no other changes to the Fund’s portfolio managers are anticipated at this time. 
As previously disclosed, the Board of Trustees of the Fund has determined that it is in the best interests of Fund shareholders to reorganize the Fund with and into Columbia Acorn International. More information about the reorganization, which is expected to occur during the third quarter of 2020, is available in a Combined Information Statement/Prospectus that was filed with the Securities and Exchange Commission on April 20, 2020 and has been delivered to shareholders.
Shareholders should retain this Supplement for future reference.
SUP108_12_009_(05/20)