0001193125-18-172974.txt : 20180524 0001193125-18-172974.hdr.sgml : 20180524 20180524100157 ACCESSION NUMBER: 0001193125-18-172974 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20180524 DATE AS OF CHANGE: 20180524 EFFECTIVENESS DATE: 20180524 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: 497 SEC ACT: 1933 Act SEC FILE NUMBER: 002-34223 FILM NUMBER: 18856882 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 S000009189 Columbia Thermostat Fund C000024974 Columbia Thermostat Fund Class A CTFAX C000024976 Columbia Thermostat Fund Class C CTFDX C000024977 Columbia Thermostat Fund Institutional Class COTZX C000122749 Columbia Thermostat Fund Advisor Class CTORX C000122750 Columbia Thermostat Fund Institutional 2 Class CQTRX C000122751 Columbia Thermostat Fund Institutional 3 Class CYYYX 497 1 d593401d497.htm COLUMBIA ACORN TRUST Columbia Acorn Trust
Supplement dated May 24, 2018
to the Prospectus and Summary Prospectus of the following Fund:
Fund Prospectus and Summary Prospectus Dated
Columbia Acorn Trust  
 Columbia Thermostat Fund 5/1/2018
Effective immediately, the information regarding the Fund's portfolio manager in the Summary Prospectus and the Prospectus for the Fund is hereby superseded and replaced with the following:
    
Portfolio Manager   Title   Role with Fund   Service with the Fund Since
Anwiti Bahuguna, Ph.D.   Senior Portfolio Manager of Columbia Management and Assistant Vice President of the Investment Manager   Co-Portfolio Manager since May 2018   May 2018
Joshua Kutin, CFA   Senior Portfolio Manager and Head of North America Asset Allocation of Columbia Management and Assistant Vice President of the Investment Manager   Co-Portfolio Manager since May 2018   May 2018
Dr. Bahuguna joined Columbia Management, an affiliate of the Investment Manager, or one of its legacy firms or acquired business lines in 2002. Dr. Bahuguna has served as Assistant Vice President of the Investment Manager since May 2018. Dr. Bahuguna began her investment career in 1998 and earned a B.S. from St. Stephen’s College, Delhi University and a Ph.D. in economics from Northeastern University.
Mr. Kutin joined Columbia Management, an affiliate of the Investment Manager in 2015 as a senior portfolio manager for the Global Investment Solutions Group. Mr. Kutin has served as Assistant Vice President of the Investment Manager since February 2018. Prior to joining Columbia Management, Mr. Kutin was a portfolio manager on the global asset allocation team at Putnam Investments. Mr. Kutin began his investment career in 1998 and earned a B.S. from Massachusetts Institute of Technology and a M.S. in finance from Princeton University.
Shareholders should retain this Supplement for future reference.
SUP235_12_006_(05/18)