<SEC-DOCUMENT>0001193125-15-164769-index.html : 20150501 <SEC-HEADER>0001193125-15-164769.hdr.sgml : 20150501 <ACCEPTANCE-DATETIME>20150501093804 ACCESSION NUMBER: 0001193125-15-164769 CONFORMED SUBMISSION TYPE: 497K PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20150501 DATE AS OF CHANGE: 20150501 EFFECTIVENESS DATE: 20150501 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: 15822211 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 <SERIES-AND-CLASSES-CONTRACTS-DATA> <EXISTING-SERIES-AND-CLASSES-CONTRACTS> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000009186 <SERIES-NAME>Columbia Acorn USA <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024962 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class A <CLASS-CONTRACT-TICKER-SYMBOL>LAUAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024963 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class B <CLASS-CONTRACT-TICKER-SYMBOL>LAUBX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024964 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class C <CLASS-CONTRACT-TICKER-SYMBOL>LAUCX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024965 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class Z <CLASS-CONTRACT-TICKER-SYMBOL>AUSAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000094634 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class I <CLASS-CONTRACT-TICKER-SYMBOL>CAUIX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122740 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class R4 <CLASS-CONTRACT-TICKER-SYMBOL>CUSAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122741 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class R5 <CLASS-CONTRACT-TICKER-SYMBOL>CYSRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122742 <CLASS-CONTRACT-NAME>Columbia Acorn USA Class Y <CLASS-CONTRACT-TICKER-SYMBOL>CUSYX </CLASS-CONTRACT> </SERIES> </EXISTING-SERIES-AND-CLASSES-CONTRACTS> </SERIES-AND-CLASSES-CONTRACTS-DATA> </SEC-HEADER> <DOCUMENT> <TYPE>497K <SEQUENCE>1 <FILENAME>d918906d497k.htm <DESCRIPTION>COLUMBIA ACORN TRUST <TEXT> Document 1 - file: d918906d497k.htm
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