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Form 485BPOS - Post-effective amendment [Rule 485(b)]:
SEC Accession No. 0001193125-21-136063
Filing Date
2021-04-28
Accepted
2021-04-28 11:10:43
Documents
93
Effectiveness Date
2021-05-01

Document Format Files

Seq Description Document Type Size
1 COLUMBIA ACORN TRUST d122057d485bpos.htm   iXBRL 485BPOS 9873136
2 FEE WAIVER/EXPENSE REIMBURSEMENT AGREEMENT d122057dex99h4.htm EX-99.(H)(4) 9070
3 FEE WAIVER/EXPENSE REIMBURSEMENT AGREEMENT d122057dex99h5.htm EX-99.(H)(5) 8478
4 FEE WAIVER/EXPENSE REIMBURSEMENT AGREEMENT d122057dex99h6.htm EX-99.(H)(6) 8742
5 FEE WAIVER/EXPENSE REIMBURSEMENT AGREEMENT d122057dex99h7.htm EX-99.(H)(7) 8882
6 AMENDED AND RESTATED FEE WAIVER AND EXPENSE REIMBURSEMENT AGREEMENT d122057dex99h8.htm EX-99.(H)(8) 8695
7 FEE WAIVER AGREEMENT d122057dex99h10.htm EX-99.(H)(10) 6957
8 TRANSFER AGENT FEE WAIVER AGREEMENT d122057dex99h11.htm EX-99.(H)(11) 9202
9 OPINION LETTER AND WRITTEN CONSENT OF PERKINS COIE LLP d122057dex99i.htm EX-99.(I) 6801
10 CONSENT OF INDEPENDENT REGISTERED ACCOUNTING FIRM d122057dex99j.htm EX-99.(J) 2913
11 AMENDED AND RESTATED PLAN PURSUANT TO RULE 18F-3(D) d122057dex99n1.htm EX-99.(N)(1) 55169
12 CODE OF ETHICS d122057dex99p1.htm EX-99.(P)(1) 145956
13 TRUSTEES' POWER OF ATTORNEY d122057dex99q.htm EX-99.(Q) 7056
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25 GRAPHIC g122057g1acorn_cticyanc.gif GRAPHIC 312
26 GRAPHIC g122057g1acorns_sized.gif GRAPHIC 64026
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29 GRAPHIC g122057g1cyanblocks.gif GRAPHIC 3039
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33 GRAPHIC g122057g2acorns_sized.gif GRAPHIC 64026
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36 GRAPHIC g122057g2cyanblocks.gif GRAPHIC 3039
37 GRAPHIC g122057g2img25379fe31.gif GRAPHIC 568
38 GRAPHIC g122057g2logocolor.jpg GRAPHIC 8348
39 GRAPHIC g122057g3acorn_cticyanc.gif GRAPHIC 312
40 GRAPHIC g122057g3acorns_sized.gif GRAPHIC 64026
41 GRAPHIC g122057g3bg_601.jpg GRAPHIC 11396
42 GRAPHIC g122057g3coltnlogospot.gif GRAPHIC 1563
43 GRAPHIC g122057g3cyanblocks.gif GRAPHIC 3039
44 GRAPHIC g122057g3imgac444a001.gif GRAPHIC 568
45 GRAPHIC g122057g3logocolor.jpg GRAPHIC 8348
46 GRAPHIC g122057g4acorn_cticyanc.gif GRAPHIC 312
47 GRAPHIC g122057g4acorns_sized.gif GRAPHIC 64026
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50 GRAPHIC g122057g4cyanblocks.gif GRAPHIC 3039
51 GRAPHIC g122057g4img0ba274aa1.gif GRAPHIC 568
52 GRAPHIC g122057g4logocolor.jpg GRAPHIC 8348
53 GRAPHIC g122057g5acorn_cticyanc.gif GRAPHIC 312
54 GRAPHIC g122057g5acorns_sized.gif GRAPHIC 64026
55 GRAPHIC g122057g5bg_604.jpg GRAPHIC 11668
56 GRAPHIC g122057g5coltnlogospot.gif GRAPHIC 1563
57 GRAPHIC g122057g5cyanblocks.gif GRAPHIC 3039
58 GRAPHIC g122057g5img733a8a431.gif GRAPHIC 568
59 GRAPHIC g122057g5logocolor.jpg GRAPHIC 8348
60 GRAPHIC g122057g6acorn_cticyanc.gif GRAPHIC 312
61 GRAPHIC g122057g6acorns_sized.gif GRAPHIC 64026
62 GRAPHIC g122057g6bg_655.jpg GRAPHIC 11445
63 GRAPHIC g122057g6coltnlogospot.gif GRAPHIC 1563
64 GRAPHIC g122057g6cyanblocks.gif GRAPHIC 3039
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69 GRAPHIC g122057t.jpg GRAPHIC 788
  Complete submission text file 0001193125-21-136063.txt   19415164

Data Files

Seq Description Document Type Size
14 XBRL TAXONOMY EXTENSION SCHEMA cat-20210501.xsd EX-101.SCH 33697
15 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE cat-20210501_cal.xml EX-101.CAL 3347
16 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE cat-20210501_def.xml EX-101.DEF 805551
17 XBRL TAXONOMY EXTENSION LABEL LINKBASE cat-20210501_lab.xml EX-101.LAB 103436
18 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE cat-20210501_pre.xml EX-101.PRE 806363
70 EXTRACTED XBRL INSTANCE DOCUMENT d122057d485bpos_htm.xml XML 858334

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009184   Columbia Acorn Fund
Class/Contract C000024954   Columbia Acorn Fund Class A LACAX
Class/Contract C000024956   Columbia Acorn Fund Class C LIACX
Class/Contract C000024957   Columbia Acorn Fund Institutional Class ACRNX
Class/Contract C000122735   Columbia Acorn Fund Advisor Class CEARX
Class/Contract C000122736   Columbia Acorn Fund Institutional 2 Class CRBRX
Class/Contract C000122737   Columbia Acorn Fund Institutional 3 Class CRBYX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009185   Columbia Acorn International
Class/Contract C000024958   Columbia Acorn International Class A LAIAX
Class/Contract C000024960   Columbia Acorn International Class C LAICX
Class/Contract C000024961   Columbia Acorn International Institutional Class ACINX
Class/Contract C000097732   Columbia Acorn International Class R CACRX
Class/Contract C000097733   Columbia Acorn International Institutional 2 Class CAIRX
Class/Contract C000122738   Columbia Acorn International Advisor Class CCIRX
Class/Contract C000122739   Columbia Acorn International Institutional 3 Class CCYIX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009186   Columbia Acorn USA
Class/Contract C000024962   Columbia Acorn USA Class A LAUAX
Class/Contract C000024964   Columbia Acorn USA Class C LAUCX
Class/Contract C000024965   Columbia Acorn USA Institutional Class AUSAX
Class/Contract C000122740   Columbia Acorn USA Advisor Class CUSAX
Class/Contract C000122741   Columbia Acorn USA Institutional 2 Class CYSRX
Class/Contract C000122742   Columbia Acorn USA Institutional 3 Class CUSYX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009188   Columbia Acorn International Select
Class/Contract C000024970   Columbia Acorn International Select Class A LAFAX
Class/Contract C000024972   Columbia Acorn International Select Class C LFFCX
Class/Contract C000024973   Columbia Acorn International Select Institutional Class ACFFX
Class/Contract C000122746   Columbia Acorn International Select Institutional 2 Class CRIRX
Class/Contract C000122747   Columbia Acorn International Select Institutional 3 Class CSIRX
Class/Contract C000122748   Columbia Acorn International Select Advisor Class CILRX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009189   Columbia Thermostat Fund
Class/Contract C000024974   Columbia Thermostat Fund Class A CTFAX
Class/Contract C000024976   Columbia Thermostat Fund Class C CTFDX
Class/Contract C000024977   Columbia Thermostat Fund Institutional Class COTZX
Class/Contract C000122749   Columbia Thermostat Fund Advisor Class CTORX
Class/Contract C000122750   Columbia Thermostat Fund Institutional 2 Class CQTRX
Class/Contract C000122751   Columbia Thermostat Fund Institutional 3 Class CYYYX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000033621   Columbia Acorn European Fund
Class/Contract C000103324   Columbia Acorn European Fund Class A CAEAX
Class/Contract C000103325   Columbia Acorn European Fund Class C CAECX
Class/Contract C000103327   Columbia Acorn European Fund Institutional Class CAEZX
Class/Contract C000122752   Columbia Acorn European Fund Institutional 2 Class CAEEX
Class/Contract C000144049   Columbia Acorn European Fund Advisor Class CLOFX
Class/Contract C000171393   Columbia Acorn European Fund Institutional 3 Class CAEYX
Mailing Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606
Business Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606 3126349200
COLUMBIA ACORN TRUST (Filer) CIK: 0000002110 (see all company filings)

IRS No.: 362692100 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 485BPOS | Act: 40 | File No.: 811-01829 | Film No.: 21862515

Mailing Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606
Business Address 71 S. WACKER DRIVE, SUITE 2500 CHICAGO IL 60606 3126349200
COLUMBIA ACORN TRUST (Filer) CIK: 0000002110 (see all company filings)

IRS No.: 362692100 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 485BPOS | Act: 33 | File No.: 002-34223 | Film No.: 21862514