0001193125-17-328458.txt : 20171101 0001193125-17-328458.hdr.sgml : 20171101 20171101090432 ACCESSION NUMBER: 0001193125-17-328458 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 4 FILED AS OF DATE: 20171101 DATE AS OF CHANGE: 20171101 EFFECTIVENESS DATE: 20171101 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: 497K SEC ACT: 1933 Act SEC FILE NUMBER: 002-34223 FILM NUMBER: 171167480 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 S000033621 Columbia Acorn European Fund C000103324 Columbia Acorn European Fund Class A CAEAX C000103325 Columbia Acorn European Fund Class C CAECX C000103327 Columbia Acorn European Fund Class Z CAEZX C000122752 Columbia Acorn European Fund Class R5 CAEEX C000144049 Columbia Acorn European Fund Class R4 CLOFX C000171393 Columbia Acorn European Fund Class Y CAEYX 497K 1 d471727d497k.htm COLUMBIA ACORN TRUST Columbia Acorn Trust

Supplement dated November 1, 2017

to the Summary Prospectuses dated May 1, 2017, as supplemented, for the following Funds:

 

 

Funds

 

COLUMBIA ACORN TRUST

     
 

Columbia Acorn® Fund

     
 

Columbia Acorn International®

     
 

Columbia Acorn USA®

     
 

Columbia Acorn International SelectSM

     
 

Columbia Acorn SelectSM

     
 

Columbia Thermostat FundSM

     
 

Columbia Acorn Emerging Markets FundSM

     
 

Columbia Acorn European FundSM

Effective immediately, Class R4, Class R5, Class Y and Class Z shares are renamed and all references to such share classes are hereby replaced with the following new share class names:

 

Former Share Class Name

    New Share Class Name (and abbreviation)

(prior to November 1, 2017)

    (as of November 1, 2017)

Class R4

    Advisor Class (Class Adv)
      

Class R5

    Institutional 2 Class (Class Inst2)
      

Class Y

    Institutional 3 Class (Class Inst3)
      

Class Z

    Institutional Class (Class Inst)

Shareholders should retain this Supplement for future reference.

SUP000_00_056_(11/17)

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