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Filing Detail
Form N-30B-2 - Periodic and interim reports mailed to shareholders:
SEC Accession No. 0001104659-11-067416
Filing Date
2011-12-02
Accepted
2011-12-02 15:03:35
Documents
81
Period of Report
2011-09-30
Effectiveness Date
2011-12-02

Document Format Files

Seq Description Document Type Size
1 N-30B-2 a11-28279_5n30b2.htm N-30B-2 10035188
2 GRAPHIC j11282792_ba003.jpg GRAPHIC 4114
3 GRAPHIC j11282792_ba004.jpg GRAPHIC 4155
4 GRAPHIC j11282792_ba005.jpg GRAPHIC 4441
5 GRAPHIC j11282792_ba006.jpg GRAPHIC 4031
6 GRAPHIC j11282792_ba007.jpg GRAPHIC 4321
7 GRAPHIC j11282792_ba008.jpg GRAPHIC 4224
8 GRAPHIC j11282792_ba009.jpg GRAPHIC 3867
9 GRAPHIC j11282791_aa001.jpg GRAPHIC 9394
10 GRAPHIC j11282791_aa002.jpg GRAPHIC 15053
11 GRAPHIC j11282792_ca010.jpg GRAPHIC 4114
12 GRAPHIC j11282792_ca011.jpg GRAPHIC 4441
13 GRAPHIC j11282792_ca012.jpg GRAPHIC 64204
14 GRAPHIC j11282792_ca013.jpg GRAPHIC 65837
15 GRAPHIC j11282792_ca014.jpg GRAPHIC 4161
16 GRAPHIC j11282792_ca015.jpg GRAPHIC 4031
17 GRAPHIC j11282792_ca016.jpg GRAPHIC 45824
18 GRAPHIC j11282792_ca017.jpg GRAPHIC 71784
19 GRAPHIC j11282792_ca018.jpg GRAPHIC 4441
20 GRAPHIC j11282792_ca019.jpg GRAPHIC 47313
21 GRAPHIC j11282792_ca020.jpg GRAPHIC 67582
22 GRAPHIC j11282792_ca021.jpg GRAPHIC 3867
23 GRAPHIC j11282792_ca022.jpg GRAPHIC 48387
24 GRAPHIC j11282792_ca023.jpg GRAPHIC 69250
25 GRAPHIC j11282792_ca024.jpg GRAPHIC 4155
26 GRAPHIC j11282792_ca025.jpg GRAPHIC 4151
27 GRAPHIC j11282792_ca026.jpg GRAPHIC 43378
28 GRAPHIC j11282792_ca027.jpg GRAPHIC 64117
29 GRAPHIC j11282792_ca028.jpg GRAPHIC 4114
30 GRAPHIC j11282792_ca029.jpg GRAPHIC 23077
31 GRAPHIC j11282792_ca030.jpg GRAPHIC 66826
32 GRAPHIC j11282792_ca031.jpg GRAPHIC 4321
33 GRAPHIC j11282792_ca032.jpg GRAPHIC 4008
34 GRAPHIC j11282792_ca033.jpg GRAPHIC 4161
35 GRAPHIC j11282792_ca034.jpg GRAPHIC 4031
36 GRAPHIC j11282792_ca035.jpg GRAPHIC 48299
37 GRAPHIC j11282792_ca036.jpg GRAPHIC 30181
38 GRAPHIC j11282792_ca037.jpg GRAPHIC 4224
39 GRAPHIC j11282792_ca038.jpg GRAPHIC 4008
40 GRAPHIC j11282792_ca039.jpg GRAPHIC 42808
41 GRAPHIC j11282792_ca040.jpg GRAPHIC 42399
42 GRAPHIC j11282792_aa001.jpg GRAPHIC 9394
43 GRAPHIC j11282792_aa002.jpg GRAPHIC 15053
44 GRAPHIC j11282791_ba003.jpg GRAPHIC 4114
45 GRAPHIC j11282791_ba004.jpg GRAPHIC 4155
46 GRAPHIC j11282791_ba005.jpg GRAPHIC 4441
47 GRAPHIC j11282791_ba006.jpg GRAPHIC 4031
48 GRAPHIC j11282791_ba007.jpg GRAPHIC 4321
49 GRAPHIC j11282791_ba008.jpg GRAPHIC 4224
50 GRAPHIC j11282791_ba009.jpg GRAPHIC 3867
51 GRAPHIC j11282791_ca010.jpg GRAPHIC 4114
52 GRAPHIC j11282791_ca011.jpg GRAPHIC 4441
53 GRAPHIC j11282791_ca012.jpg GRAPHIC 64204
54 GRAPHIC j11282791_ca013.jpg GRAPHIC 57440
55 GRAPHIC j11282791_ca014.jpg GRAPHIC 4161
56 GRAPHIC j11282791_ca015.jpg GRAPHIC 4031
57 GRAPHIC j11282791_ca016.jpg GRAPHIC 45824
58 GRAPHIC j11282791_ca017.jpg GRAPHIC 50234
59 GRAPHIC j11282791_ca018.jpg GRAPHIC 4441
60 GRAPHIC j11282791_ca019.jpg GRAPHIC 47313
61 GRAPHIC j11282791_ca020.jpg GRAPHIC 48344
62 GRAPHIC j11282791_ca021.jpg GRAPHIC 3867
63 GRAPHIC j11282791_ca022.jpg GRAPHIC 48387
64 GRAPHIC j11282791_ca023.jpg GRAPHIC 47534
65 GRAPHIC j11282791_ca024.jpg GRAPHIC 4155
66 GRAPHIC j11282791_ca025.jpg GRAPHIC 4151
67 GRAPHIC j11282791_ca026.jpg GRAPHIC 43378
68 GRAPHIC j11282791_ca027.jpg GRAPHIC 44943
69 GRAPHIC j11282791_ca028.jpg GRAPHIC 4114
70 GRAPHIC j11282791_ca029.jpg GRAPHIC 23077
71 GRAPHIC j11282791_ca030.jpg GRAPHIC 58532
72 GRAPHIC j11282791_ca031.jpg GRAPHIC 4321
73 GRAPHIC j11282791_ca032.jpg GRAPHIC 4008
74 GRAPHIC j11282791_ca033.jpg GRAPHIC 4161
75 GRAPHIC j11282791_ca034.jpg GRAPHIC 4031
76 GRAPHIC j11282791_ca035.jpg GRAPHIC 48299
77 GRAPHIC j11282791_ca036.jpg GRAPHIC 30181
78 GRAPHIC j11282791_ca037.jpg GRAPHIC 4224
79 GRAPHIC j11282791_ca038.jpg GRAPHIC 4008
80 GRAPHIC j11282791_ca039.jpg GRAPHIC 42808
81 GRAPHIC j11282791_ca040.jpg GRAPHIC 42399
  Complete submission text file 0001104659-11-067416.txt   12557621

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 C000024955   Columbia Acorn Fund Class B LACBX
Class/Contract C000024956   Columbia Acorn Fund Class C LIACX
Class/Contract C000024957   Columbia Acorn Fund Class Z ACRNX
Class/Contract C000094632   Columbia Acorn Fund Class I CANIX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009185   Columbia Acorn International
Class/Contract C000024958   Columbia Acorn International Class A LAIAX
Class/Contract C000024959   Columbia Acorn International Class B LIABX
Class/Contract C000024960   Columbia Acorn International Class C LAICX
Class/Contract C000024961   Columbia Acorn International Class Z ACINX
Class/Contract C000094633   Columbia Acorn International Class I CARIX
Class/Contract C000097732   Columbia Acorn International Class R CACRX
Class/Contract C000097733   Columbia Acorn International Class R5
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009186   Columbia Acorn USA
Class/Contract C000024962   Columbia Acorn USA Class A LAUAX
Class/Contract C000024963   Columbia Acorn USA Class B LAUBX
Class/Contract C000024964   Columbia Acorn USA Class C LAUCX
Class/Contract C000024965   Columbia Acorn USA Class Z AUSAX
Class/Contract C000094634   Columbia Acorn USA Class I CAUIX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009187   Columbia Acorn Select
Class/Contract C000024966   Columbia Acorn Select Class A LTFAX
Class/Contract C000024967   Columbia Acorn Select Class B LTFBX
Class/Contract C000024968   Columbia Acorn Select Class C LTFCX
Class/Contract C000024969   Columbia Acorn Select Class Z ACTWX
Class/Contract C000094635   Columbia Acorn Select Class I CACIX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009188   Columbia Acorn International Select
Class/Contract C000024970   Columbia Acorn International Select Class A LAFAX
Class/Contract C000024971   Columbia Acorn International Select Class B LFFBX
Class/Contract C000024972   Columbia Acorn International Select Class C LFFCX
Class/Contract C000024973   Columbia Acorn International Select Class Z ACFFX
Class/Contract C000094636   Columbia Acorn International Select Class I CRSIX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000009189   Columbia Thermostat Fund
Class/Contract C000024974   Columbia Thermostat Fund Class A CTFAX
Class/Contract C000024975   Columbia Thermostat Fund Class B CTFBX
Class/Contract C000024976   Columbia Thermostat Fund Class C CTFDX
Class/Contract C000024977   Columbia Thermostat Fund Class Z COTZX
  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 C000103326   Columbia Acorn European Fund Class I CAFIX
Class/Contract C000103327   Columbia Acorn European Fund Class Z CAEZX
  Status Name Ticker Symbol
CIK 0000002110      
Series S000033622   Columbia Acorn Emerging Markets Fund
Class/Contract C000103328   Columbia Acorn Emerging Markets Fund Class A CAGAX
Class/Contract C000103329   Columbia Acorn Emerging Markets Fund Class C CGMCX
Class/Contract C000103330   Columbia Acorn Emerging Markets Fund Class I CATIX
Class/Contract C000103331   Columbia Acorn Emerging Markets Fund Class Z CEFZX
Mailing Address 227 W MONROE STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STE 3000 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: N-30B-2 | Act: 40 | File No.: 811-01829 | Film No.: 111240020