a497.htm

-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, Ke+Gr0AEIE/JI84niXuURjiRJbcdnJ7ajHkKLa3B97t288Q5bvWBH2QCk/OuHtJz dncKjjbOz7KjcirhzqXYGw== 0000898432-10-001078.txt : 20100810 0000898432-10-001078.hdr.sgml : 20100810 20100810123853 ACCESSION NUMBER: 0000898432-10-001078 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20100810 DATE AS OF CHANGE: 20100810 EFFECTIVENESS DATE: 20100810 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: 101004237 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 S000009185 Columbia Acorn International

C000024958 Columbia Acorn International Class A LAIAX

C000024959 Columbia Acorn International Class B LIABX

C000024960 Columbia Acorn International Class C LAICX

C000024961 Columbia Acorn International Class Z ACINX

0000002110 S000009188 Columbia Acorn International Select

C000024970 Columbia Acorn International Select Class A LAFAX

C000024971 Columbia Acorn International Select Class B LFFBX

C000024972 Columbia Acorn International Select Class C LFFCX

C000024973 Columbia Acorn International Select Class Z ACFFX

497 1 a497.htm a497.htm

COLUMBIA ACORN TRUST

Columbia Acorn International

Columbia Acorn International Select

(Each a “Fund” and together the “Funds”)

Supplement dated August 10, 2010 to the Prospectuses and

Statement of Additional Information dated May 1, 2010

Effective for redemption or exchange orders accepted on or after September 1, 2010, Columbia Acorn International and Columbia Acorn International Select will no longer assess a 2.00% redemption fee on the proceeds from Fund shares that are redeemed (either by sale or exchange into another Columbia Fund) within 60 days of their purchase. Accordingly, effective September 1, 2010, the Prospectuses and Statement of Additional Information for the Funds are modified as follows:

1.

The line item captioned Redemption fee, as a % of total redemption proceeds in the Shareholder Fees table within the section of the Prospectuses entitled Fees and Expenses of the Fund is deleted in its entirety.

2.

The section of the Prospectuses entitled Choosing a Share Class – Redemption Fee is deleted in its entirety.

3.

References in the Statement of Additional Information regarding the Funds’ charging a redemption fee are deleted.

Shareholders should retain this Supplement for future reference.

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