0001193125-12-046470.txt : 20120208 0001193125-12-046470.hdr.sgml : 20120208 20120208155645 ACCESSION NUMBER: 0001193125-12-046470 CONFORMED SUBMISSION TYPE: 497 PUBLIC DOCUMENT COUNT: 7 FILED AS OF DATE: 20120208 DATE AS OF CHANGE: 20120208 EFFECTIVENESS DATE: 20120208 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: 12581918 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 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 C000094635 Columbia Acorn Select Class I CACIX 497 1 d294335d497.htm COLUMBIA ACORN TRUST Columbia Acorn Trust

The interactive data file included as an exhibit to this filing relates to the supplement to the prospectuses and statement of additional information for Columbia Acorn Select filed pursuant to Rule 497(e) under the Securities Act of 1933, as amended, on January 24, 2012 (Accession No.0001193125-12-021330), which is incorporated herein by reference.

EX-101.INS 2 cik0000002110-2012012401.xml XBRL INSTANCE DOCUMENT 0000002110 2012-01-24 2012-01-24 0000002110 columbia:S000009187Member columbia:AAAAMember 2012-01-24 2012-01-24 xbrli:pure iso4217:USD xbrli:shares iso4217:USD xbrli:shares Other 2011-12-31 COLUMBIA ACORN TRUST 0000002110 false 2012-01-24 <div style="display: none">~ http://xbrl.sec.gov/rr/role/RiskReturnDetailData column period compact * row dei_DocumentInformationDocumentAxis compact * row dei_LegalEntityAxis compact * row rr_ProspectusShareClassAxis compact * row rr_PerformanceMeasureAxis compact * row primary compact * ~</div> <div style="font-size:16;padding-top:5;padding-bottom:0;padding-left:0; text-align: center"> <b>COLUMBIA ACORN TRUST</b></div> <div style="font-size:16;padding-top:5;padding-bottom:0;padding-left:0; text-align: center"> <b>Columbia Acorn Select&#8480;</b></div> <div style="font-size:16;padding-top:5;padding-bottom:0;padding-left:0; text-align: center"> <b>(the "Fund")</b></div> <p></p> <p></p> <div style="font-size:16;padding-top:5;padding-bottom:0;padding-left:0; text-align: center"> Supplement dated January 24, 2012 to the Prospectuses dated May 1, 2011, as supplemented,</div> <div style="font-size:16;padding-top:5;padding-bottom:0;padding-left:0; text-align: center"> and the Statement of Additional Information dated May 1, 2011</div> <p></p> <p></p> <p style="font-size:12;padding-top:2;padding-bottom:0;padding-left:0;"> Effective January 31, 2012, the Fund will no longer be classified as a non-diversified investment company within the meaning of Section 5(b) of the Investment Company Act of 1940.</p> <p></p> <p></p> <p style="font-size:12;padding-top:2;padding-bottom:0;padding-left:0;"> Effective January 31, 2012, the Fund's prospectuses dated May 1, 2011, as supplemented, are further supplemented as follows:</p> <p></p> <p></p> <div style="display:none">~http://columbia/role/ShareholderFeesDataAAAA column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact columbia_S000009187Member ~</div> <div style="display:none">~ http://columbia/role/OperatingExpensesDataAAAA column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact columbia_S000009187Member ~</div> <div style="display:none">~ http://columbia/role/ExpenseExampleAAAA column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact columbia_S000009187Member ~</div> <div style="display:none">~ http://columbia/role/ExpenseExampleNoRedemptionAAAA column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact columbia_S000009187Member ~</div> 2012-01-24 2012-01-24 <p style="font-size:12;padding-top:2;padding-bottom:0;padding-left:0;"> The Fund was previously registered as a non-diversified investment company. The Fund has changed its classification from non-diversified to diversified. The Fund will not be able to become non-diversified unless it seeks and obtains the approval of shareholders.</p> <div style="display:none">~ http://columbia/role/PerformanceTableDataAAAA column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_LegalEntityAxis compact columbia_S000009187Member ~</div> <p style="font-size:12;padding-top:2;padding-bottom:0;padding-left:0;"> The last bullet point under the heading <i>Principal Risks</i> is deleted in its entirety.</p> <p style="font-size:12;padding-top:2;padding-bottom:0;padding-left:0;"> The last sentence of the fourth paragraph under the heading <i>Principal Investment Strategies</i> is replaced in its entirety with the following: </p> EX-101.SCH 3 cik0000002110-2012012401.xsd XBRL TAXONOMY EXTENSION SCHEMA 010002 - Document - Columbia Acorn Select {Unlabeled} link:presentationLink link:calculationLink link:definitionLink 020032 - Schedule - Expense Example {Transposed} link:presentationLink 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(Columbia Acorn Select)
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COLUMBIA ACORN TRUST
Columbia Acorn Select℠
(the "Fund")

Supplement dated January 24, 2012 to the Prospectuses dated May 1, 2011, as supplemented,
and the Statement of Additional Information dated May 1, 2011

Effective January 31, 2012, the Fund will no longer be classified as a non-diversified investment company within the meaning of Section 5(b) of the Investment Company Act of 1940.

Effective January 31, 2012, the Fund's prospectuses dated May 1, 2011, as supplemented, are further supplemented as follows:

The Fund was previously registered as a non-diversified investment company. The Fund has changed its classification from non-diversified to diversified. The Fund will not be able to become non-diversified unless it seeks and obtains the approval of shareholders.

The last bullet point under the heading Principal Risks is deleted in its entirety.

The last sentence of the fourth paragraph under the heading Principal Investment Strategies is replaced in its entirety with the following:

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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Document Type dei_DocumentType Other
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2011
Registrant Name dei_EntityRegistrantName COLUMBIA ACORN TRUST
Central Index Key dei_EntityCentralIndexKey 0000002110
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Jan. 24, 2012
Document Effective Date dei_DocumentEffectiveDate Jan. 24, 2012
Prospectus Date rr_ProspectusDate Jan. 24, 2012
(Columbia Acorn Select)
  
Risk/Return: rr_RiskReturnAbstract  
Supplement [Text Block] columbia_SupplementTextBlock
COLUMBIA ACORN TRUST
Columbia Acorn Select℠
(the "Fund")

Supplement dated January 24, 2012 to the Prospectuses dated May 1, 2011, as supplemented,
and the Statement of Additional Information dated May 1, 2011

Effective January 31, 2012, the Fund will no longer be classified as a non-diversified investment company within the meaning of Section 5(b) of the Investment Company Act of 1940.

Effective January 31, 2012, the Fund's prospectuses dated May 1, 2011, as supplemented, are further supplemented as follows:
Strategy Narrative Supplement [Text Block] columbia_SupplementTextBlock_02

The last sentence of the fourth paragraph under the heading Principal Investment Strategies is replaced in its entirety with the following:

Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Fund was previously registered as a non-diversified investment company. The Fund has changed its classification from non-diversified to diversified. The Fund will not be able to become non-diversified unless it seeks and obtains the approval of shareholders.
Risk Narrative Supplement [Text Block] columbia_SupplementTextBlock_01

The last bullet point under the heading Principal Risks is deleted in its entirety.
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COLUMBIA ACORN TRUST
Columbia Acorn Select℠
(the "Fund")

Supplement dated January 24, 2012 to the Prospectuses dated May 1, 2011, as supplemented,
and the Statement of Additional Information dated May 1, 2011

Effective January 31, 2012, the Fund will no longer be classified as a non-diversified investment company within the meaning of Section 5(b) of the Investment Company Act of 1940.

Effective January 31, 2012, the Fund's prospectuses dated May 1, 2011, as supplemented, are further supplemented as follows:

The last sentence of the fourth paragraph under the heading Principal Investment Strategies is replaced in its entirety with the following:

The Fund was previously registered as a non-diversified investment company. The Fund has changed its classification from non-diversified to diversified. The Fund will not be able to become non-diversified unless it seeks and obtains the approval of shareholders.

The last bullet point under the heading Principal Risks is deleted in its entirety.
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