-----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, CECEDtB291JM+6s/wEPgIuqoPCBak5zOpT6tKa+T6UvKtrMzhuTnOAtk5TkLOlii 2IlaWeWdG9XgKabpuGx/WA== 0001104659-07-049294.txt : 20070622 0001104659-07-049294.hdr.sgml : 20070622 20070622112445 ACCESSION NUMBER: 0001104659-07-049294 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20070622 DATE AS OF CHANGE: 20070622 EFFECTIVENESS DATE: 20070622 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: 07935663 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 S000009184 Columbia Acorn Fund C000024954 Columbia Acorn Fund Class A LACAX C000024955 Columbia Acorn Fund Class B LACBX C000024956 Columbia Acorn Fund Class C LIACX C000024957 Columbia Acorn Fund Class Z ACRNX 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 S000009186 Columbia Acorn USA C000024962 Columbia Acorn USA Class A LAUAX C000024963 Columbia Acorn USA Class B LAUBX C000024964 Columbia Acorn USA Class C LAUCX C000024965 Columbia Acorn USA Class Z AUSAX 0000002110 S000009187 Columbia Acorn Select C000024966 Columbia Acorn Select Class A LTFAX C000024967 Columbia Acorn Select Class B LTFBX C000024968 Columbia Acorn Select Class C LTFCX C000024969 Columbia Acorn Select Class Z ACTWX 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 0000002110 S000009189 Columbia Thermostat Fund C000024974 Columbia Thermostat Fund Class A CTFAX C000024975 Columbia Thermostat Fund Class B CTFBX C000024976 Columbia Thermostat Fund Class C CTFDX C000024977 Columbia Thermostat Fund Class Z COTZX 497 1 a07-17029_3497.htm 497

COLUMBIA ACORN TRUST

ColumbiaSM Acorn Fund®
ColumbiaSM Acorn International®
ColumbiaSM Acorn USA®
ColumbiaSM Acorn SelectSM
ColumbiaSM Acorn International SelectSM
ColumbiaSM Thermostat FundSM
(the “Funds”)

Supplement dated June 22, 2007 to the
Statement of Additional Information
dated May 1, 2007

Effective July 1, 2007, the chart in the section entitled “Management of the Trust—Trustees and Officers” beginning on page 33 of the Funds’ Statement of Additional Information is revised to include the following information:

Name, Position(s)
with Columbia Acorn
and Age at
January 1, 2007

 

Year First
Elected or
Appointed
to Office*

 

Principal Occupation(s)
during
Past Five Years

 

Number of
Portfolios in
Fund Complex
Overseen by
Trustee/Officer

 

Other
Directorships

 

 

 

 

 

 

 

 

 

Trustees who are not interested persons of Columbia Acorn:

 

 

 

 

 

 

 

 

 

 

 

 

 

Maureen M. Culhane, 58, Trustee

 

2007

 

Retired; Vice President, Goldman, Sachs Asset Management (investment adviser) 2005; Vice President (Consultant) — Strategic Relationship Management, Goldman, Sachs & Co. 1999-2005; prior thereto, Vice President of Finance and Treasurer, Sara Lee Corporation.

 

10

 

Wanger Advisors Trust.

 

 

 

 

 

 

 

 

 

Trustees who are interested persons of Columbia Acorn:

 

 

 

 

 

 

 

 

 

 

 

 

 

Laura M. Born, 41, Trustee (4)

 

2007

 

Adjunct Assistant Professor of Finance, University of Chicago Graduate School of Business 2007-2008; Managing Director – Investment Banking, J.P. Morgan Chase & Co. Incorporated (broker-dealer) 1991 – 2007.

 

10

 

Wanger Advisors Trust.

 

(4)          Ms. Born is an “interested person”, as defined in the 1940 Act, until January 1, 2008 as a result of her previous affiliation with J.P. Morgan Chase & Co. Incorporated, a registered broker-dealer that may execute portfolio transactions for or engage in principal transactions with the Funds or other clients or other funds or clients advised by Columbia WAM or its affiliates.

INT-50/132910-0607


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