<SEC-DOCUMENT>0001193125-23-274255-index.html : 20231109 <SEC-HEADER>0001193125-23-274255.hdr.sgml : 20231109 <ACCEPTANCE-DATETIME>20231109111955 ACCESSION NUMBER: 0001193125-23-274255 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231109 DATE AS OF CHANGE: 20231109 EFFECTIVENESS DATE: 20231109 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: 231391143 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 <SERIES-AND-CLASSES-CONTRACTS-DATA> <EXISTING-SERIES-AND-CLASSES-CONTRACTS> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000033621 <SERIES-NAME>Columbia Acorn European Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000103324 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Class A <CLASS-CONTRACT-TICKER-SYMBOL>CAEAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000103325 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Class C <CLASS-CONTRACT-TICKER-SYMBOL>CAECX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000103327 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>CAEZX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122752 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CAEEX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000144049 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CLOFX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000171393 <CLASS-CONTRACT-NAME>Columbia Acorn European Fund Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CAEYX </CLASS-CONTRACT> </SERIES> </EXISTING-SERIES-AND-CLASSES-CONTRACTS> </SERIES-AND-CLASSES-CONTRACTS-DATA> </SEC-HEADER> <DOCUMENT> <TYPE>497K <SEQUENCE>1 <FILENAME>d573315d497k.htm <DESCRIPTION>497K <TEXT> Document 1 - file: d573315d497k.htm
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