<SEC-DOCUMENT>0001193125-19-146443-index.html : 20190514 <SEC-HEADER>0001193125-19-146443.hdr.sgml : 20190514 <ACCEPTANCE-DATETIME>20190514151902 ACCESSION NUMBER: 0001193125-19-146443 CONFORMED SUBMISSION TYPE: 485BPOS PUBLIC DOCUMENT COUNT: 37 FILED AS OF DATE: 20190514 DATE AS OF CHANGE: 20190514 EFFECTIVENESS DATE: 20190514 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: 485BPOS SEC ACT: 1933 Act SEC FILE NUMBER: 002-34223 FILM NUMBER: 19822378 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 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: 485BPOS SEC ACT: 1940 Act SEC FILE NUMBER: 811-01829 FILM NUMBER: 19822377 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>S000009184 <SERIES-NAME>Columbia Acorn Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024954 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Class A <CLASS-CONTRACT-TICKER-SYMBOL>LACAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024956 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Class C <CLASS-CONTRACT-TICKER-SYMBOL>LIACX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024957 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>ACRNX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122735 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CEARX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122736 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CRBRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122737 <CLASS-CONTRACT-NAME>Columbia Acorn Fund Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CRBYX </CLASS-CONTRACT> </SERIES> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000009185 <SERIES-NAME>Columbia Acorn International <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024958 <CLASS-CONTRACT-NAME>Columbia Acorn International Class A <CLASS-CONTRACT-TICKER-SYMBOL>LAIAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024960 <CLASS-CONTRACT-NAME>Columbia Acorn International Class C <CLASS-CONTRACT-TICKER-SYMBOL>LAICX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024961 <CLASS-CONTRACT-NAME>Columbia Acorn International Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>ACINX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000097732 <CLASS-CONTRACT-NAME>Columbia Acorn International Class R <CLASS-CONTRACT-TICKER-SYMBOL>CACRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000097733 <CLASS-CONTRACT-NAME>Columbia Acorn International Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CAIRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122738 <CLASS-CONTRACT-NAME>Columbia Acorn International Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CCIRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122739 <CLASS-CONTRACT-NAME>Columbia Acorn International Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CCYIX </CLASS-CONTRACT> </SERIES> <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>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 Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>AUSAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122740 <CLASS-CONTRACT-NAME>Columbia Acorn USA Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CUSAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122741 <CLASS-CONTRACT-NAME>Columbia Acorn USA Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CYSRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122742 <CLASS-CONTRACT-NAME>Columbia Acorn USA Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CUSYX </CLASS-CONTRACT> </SERIES> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000009187 <SERIES-NAME>Columbia Acorn Select <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024966 <CLASS-CONTRACT-NAME>Columbia Acorn Select Class A <CLASS-CONTRACT-TICKER-SYMBOL>LTFAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024968 <CLASS-CONTRACT-NAME>Columbia Acorn Select Class C <CLASS-CONTRACT-TICKER-SYMBOL>LTFCX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024969 <CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>ACTWX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122743 <CLASS-CONTRACT-NAME>Columbia Acorn Select Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CSSRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122744 <CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CSLRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122745 <CLASS-CONTRACT-NAME>Columbia Acorn Select Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CSLYX </CLASS-CONTRACT> </SERIES> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000009188 <SERIES-NAME>Columbia Acorn International Select <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024970 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Class A <CLASS-CONTRACT-TICKER-SYMBOL>LAFAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024972 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Class C <CLASS-CONTRACT-TICKER-SYMBOL>LFFCX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024973 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Institutional Class <CLASS-CONTRACT-TICKER-SYMBOL>ACFFX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122746 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Institutional 2 Class <CLASS-CONTRACT-TICKER-SYMBOL>CRIRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122747 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Institutional 3 Class <CLASS-CONTRACT-TICKER-SYMBOL>CSIRX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000122748 <CLASS-CONTRACT-NAME>Columbia Acorn International Select Advisor Class <CLASS-CONTRACT-TICKER-SYMBOL>CILRX </CLASS-CONTRACT> </SERIES> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000009189 <SERIES-NAME>Columbia Thermostat Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024974 <CLASS-CONTRACT-NAME>Columbia Thermostat Fund Class A <CLASS-CONTRACT-TICKER-SYMBOL>CTFAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024976 <CLASS-CONTRACT-NAME>Columbia Thermostat Fund Class C <CLASS-CONTRACT-TICKER-SYMBOL>CTFDX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000024977 <CLASS-CONTRACT-NAME>Columbia Thermostat Fund Institutional Class 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<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> <SERIES> <OWNER-CIK>0000002110 <SERIES-ID>S000033622 <SERIES-NAME>Columbia Acorn Emerging Markets Fund <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000103328 <CLASS-CONTRACT-NAME>Columbia Acorn Emerging Markets Fund Class A <CLASS-CONTRACT-TICKER-SYMBOL>CAGAX </CLASS-CONTRACT> <CLASS-CONTRACT> <CLASS-CONTRACT-ID>C000103329 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