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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 CIK#: 0000002110 (see all company filings)

State location: IL | State of Inc.: MA | Fiscal Year End: 1231
formerly: ACORN INVESTMENT TRUST (filings through 2001-02-14)
formerly: LIBERTY ACORN TRUST (filings through 2003-10-20)
Class/Contract: C000024975 Columbia Thermostat Fund Class B 
Ticker Symbol:   CTFBX
(List all Funds and Classes/Contracts for COLUMBIA ACORN TRUST)

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Items 1 - 40  0000002110 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001145549-20-007812 (40 Act)  Size: 21 KB
2020-02-25 811-01829
20647677
NSAR-A  Documents Semi-annual report for management companies
Acc-no: 0001193125-17-270152 (40 Act)  Size: 121 KB
2017-08-28 811-01829
171054325
24F-2NT  Documents Rule 24F-2 notice
Acc-no: 0001193125-17-094767 (33 Act)  Size: 53 KB
2017-03-24 002-34223
17711355
NSAR-B  Documents Annual report for management companies
Acc-no: 0001193125-17-064829 (40 Act)  Size: 127 KB
2017-03-01 811-01829
17652867
NSAR-A  Documents Semi-annual report for management companies
Acc-no: 0001193125-16-695534 (40 Act)  Size: 123 KB
2016-08-29 811-01829
161857888
N-Q  Documents Quarterly Schedule of portfolio holdings of management investment companies
Acc-no: 0001104659-16-123932 (40 Act)  Size: 3 MB
2016-05-27 811-01829
161681154
N-30B-2  Documents Periodic and interim reports mailed to shareholders
Acc-no: 0001104659-16-123931 (40 Act)  Size: 6 MB
2016-05-27 811-01829
161681153
24F-2NT  Documents Rule 24F-2 notice
Acc-no: 0001193125-16-516170 (33 Act)  Size: 52 KB
2016-03-24 002-34223
161525664
N-CSR  Documents Certified Shareholder Report
Acc-no: 0001104659-16-101846 (40 Act)  Size: 12 MB
2016-03-02 811-01829
161477642
NSAR-B  Documents Annual report for management companies
Acc-no: 0001193125-16-479951 (40 Act)  Size: 128 KB
2016-02-26 811-01829
161458848
497  Documents Definitive materials
Acc-no: 0001193125-16-418922 (33 Act)  Size: 35 KB
2016-01-04 002-34223
161316586
N-30B-2  Documents Periodic and interim reports mailed to shareholders
Acc-no: 0001104659-15-081423 (40 Act)  Size: 6 MB
2015-11-25 811-01829
151255786
N-Q  Documents Quarterly Schedule of portfolio holdings of management investment companies
Acc-no: 0001104659-15-081424 (40 Act)  Size: 4 MB
2015-11-25 811-01829
151255787
497  Documents Definitive materials
Acc-no: 0001193125-15-333921 (33 Act)  Size: 55 KB
2015-09-30 002-34223
151133802
N-CSRS  Documents Certified Shareholder Report, Semi-Annual
Acc-no: 0001104659-15-063215 (40 Act)  Size: 12 MB
2015-09-02 811-01829
151089175
NSAR-A  Documents Semi-annual report for management companies
Acc-no: 0001193125-15-305143 (40 Act)  Size: 125 KB
2015-08-27 811-01829
151079525
N-PX  Documents Annual Report of proxy voting record of management investment companies
Acc-no: 0001104659-15-061647 (40 Act)  Size: 7 MB
2015-08-25 811-01829
151072779
N-Q  Documents Quarterly Schedule of portfolio holdings of management investment companies
Acc-no: 0001104659-15-041987 (40 Act)  Size: 4 MB
2015-05-29 811-01829
15899031
N-30B-2  Documents Periodic and interim reports mailed to shareholders
Acc-no: 0001104659-15-041528 (40 Act)  Size: 6 MB
2015-05-28 811-01829
15895146
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001193125-15-196537 (33 Act)  Size: 11 MB
2015-05-21 002-34223
15881941
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001193125-15-196537 (40 Act)  Size: 11 MB
2015-05-21 811-01829
15881942
497J  Documents Certification of no change in definitive materials
Acc-no: 0001193125-15-174108 (33 Act)  Size: 13 KB
2015-05-06 002-34223
15836405
497  Documents Definitive materials
Acc-no: 0001193125-15-165937 (33 Act)  Size: 2 MB
2015-05-01 002-34223
15823922
497K  Documents Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K)
Acc-no: 0001193125-15-161957 (33 Act)  Size: 363 KB
2015-04-30 002-34223
15818867
485BPOS  Documents Post-effective amendment [Rule 485(b)]
Acc-no: 0001193125-15-161762 (33 Act)  Size: 10 MB
2015-04-30 002-34223
15818411
485BPOS  Documents Post-effective amendment [Rule 485(b)]
Acc-no: 0001193125-15-161762 (40 Act)  Size: 10 MB
2015-04-30 811-01829
15818412
497  Documents Definitive materials
Acc-no: 0001193125-15-161895 (33 Act)  Size: 31 KB
2015-04-30 002-34223
15818732
24F-2NT  Documents Rule 24F-2 notice
Acc-no: 0001193125-15-108111 (33 Act)  Size: 40 KB
2015-03-27 002-34223
15729129
N-CSR  Documents Certified Shareholder Report
Acc-no: 0001104659-15-017086 (40 Act)  Size: 11 MB
2015-03-05 811-01829
15676973
NSAR-B  Documents Annual report for management companies
Acc-no: 0001193125-15-069181 (40 Act)  Size: 125 KB
2015-02-27 811-01829
15657628
DEF 14A  Documents Other definitive proxy statements
Acc-no: 0001193125-15-011757 (34 Act)  Size: 756 KB
2015-01-15 811-01829
15529783
N-30B-2  Documents Periodic and interim reports mailed to shareholders
Acc-no: 0001104659-14-083625 (40 Act)  Size: 6 MB
2014-11-26 811-01829
141253298
N-Q  Documents Quarterly Schedule of portfolio holdings of management investment companies
Acc-no: 0001104659-14-083626 (40 Act)  Size: 5 MB
2014-11-26 811-01829
141253309
N-CSRS  Documents Certified Shareholder Report, Semi-Annual
Acc-no: 0001104659-14-063900 (40 Act)  Size: 12 MB
2014-08-29 811-01829
141073917
NSAR-A  Documents Semi-annual report for management companies
Acc-no: 0001193125-14-326154 (40 Act)  Size: 120 KB
2014-08-29 811-01829
141073355
N-PX  Documents Annual Report of proxy voting record of management investment companies
Acc-no: 0001104659-14-063090 (40 Act)  Size: 9 MB
2014-08-26 811-01829
141064864
497  Documents Definitive materials
Acc-no: 0001193125-14-266139 (33 Act)  Size: 61 KB
2014-07-11 002-34223
14970999
497  Documents Definitive materials
Acc-no: 0001193125-14-233448 (33 Act)  Size: 70 KB
2014-06-11 002-34223
14904972
N-30B-2  Documents Periodic and interim reports mailed to shareholders
Acc-no: 0001104659-14-042396 (40 Act)  Size: 6 MB
2014-05-29 811-01829
14876298
N-Q  Documents Quarterly Schedule of portfolio holdings of management investment companies
Acc-no: 0001104659-14-042397 (40 Act)  Size: 5 MB
2014-05-29 811-01829
14876300