<SEC-DOCUMENT>0001193125-17-266665-index.html : 20170824 <SEC-HEADER>0001193125-17-266665.hdr.sgml : 20170824 <ACCEPTANCE-DATETIME>20170824143858 ACCESSION NUMBER: 0001193125-17-266665 CONFORMED SUBMISSION TYPE: N-PX PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20170630 FILED AS OF DATE: 20170824 DATE AS OF CHANGE: 20170824 EFFECTIVENESS DATE: 20170824 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: N-PX SEC ACT: 1940 Act SEC FILE NUMBER: 811-01829 FILM NUMBER: 171049188 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: 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