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Filing Detail
Form 485APOS - Post-effective amendment [Rule 485(a)]:
SEC Accession No. 0001193125-10-042190
Filing Date
2010-02-26
Accepted
2010-02-26 12:12:33
Documents
184

Document Format Files

Seq Description Document Type Size
1 COLUMBIA ACORN TRUST d485apos.htm 485APOS 7197188
2 BY-LAWS, DATED SEPTEMBER 28, 2004, AS AMENDED THROUGH DECEMBER 17, 2009 dex99b.htm EX-99.(B) 26142
4 GRAPHIC g65220g62h64.jpg GRAPHIC 4735
5 GRAPHIC g65680g13n21.jpg GRAPHIC 2385
6 GRAPHIC g75735acorn.jpg GRAPHIC 5977
7 GRAPHIC g75735bighand.jpg GRAPHIC 767
8 GRAPHIC g75735calculator.jpg GRAPHIC 766
9 GRAPHIC g75735columbia.jpg GRAPHIC 1398
10 GRAPHIC g75735dart.jpg GRAPHIC 778
11 GRAPHIC g75735exclamation.jpg GRAPHIC 829
12 GRAPHIC g75735horse.jpg GRAPHIC 755
13 GRAPHIC g75735linegraph.jpg GRAPHIC 738
14 GRAPHIC g75735smallhand.jpg GRAPHIC 660
15 GRAPHIC g75735tx_001.jpg GRAPHIC 2376
16 GRAPHIC g84022acorn.jpg GRAPHIC 5977
17 GRAPHIC g84022bighand.jpg GRAPHIC 767
18 GRAPHIC g84022calculator.jpg GRAPHIC 766
19 GRAPHIC g84022columbia.jpg GRAPHIC 1398
20 GRAPHIC g84022dart.jpg GRAPHIC 778
21 GRAPHIC g84022exclamation.jpg GRAPHIC 829
22 GRAPHIC g84022horse.jpg GRAPHIC 755
23 GRAPHIC g84022linegraph.jpg GRAPHIC 738
24 GRAPHIC g84022smallhand.jpg GRAPHIC 660
25 GRAPHIC g84022tx_001.jpg GRAPHIC 2376
26 GRAPHIC g84062acorn.jpg GRAPHIC 5977
27 GRAPHIC g84062bighand.jpg GRAPHIC 767
28 GRAPHIC g84062calculator.jpg GRAPHIC 766
29 GRAPHIC g84062columbia.jpg GRAPHIC 1398
30 GRAPHIC g84062dart.jpg GRAPHIC 778
31 GRAPHIC g84062exclamation.jpg GRAPHIC 829
32 GRAPHIC g84062horse.jpg GRAPHIC 755
33 GRAPHIC g84062linegraph.jpg GRAPHIC 738
34 GRAPHIC g84062smallhand.jpg GRAPHIC 660
35 GRAPHIC g84062tx_001.jpg GRAPHIC 2376
36 GRAPHIC g84067acorn.jpg GRAPHIC 5977
37 GRAPHIC g84067bighand.jpg GRAPHIC 767
38 GRAPHIC g84067calculator.jpg GRAPHIC 766
39 GRAPHIC g84067columbia.jpg GRAPHIC 1398
40 GRAPHIC g84067dart.jpg GRAPHIC 778
41 GRAPHIC g84067exclamation.jpg GRAPHIC 829
42 GRAPHIC g84067horse.jpg GRAPHIC 755
43 GRAPHIC g84067linegraph.jpg GRAPHIC 738
44 GRAPHIC g84067smallhand.jpg GRAPHIC 660
45 GRAPHIC g84067tx_001.jpg GRAPHIC 2376
46 GRAPHIC g84103acorn.jpg GRAPHIC 5977
47 GRAPHIC g84103bighand.jpg GRAPHIC 767
48 GRAPHIC g84103calculator.jpg GRAPHIC 766
49 GRAPHIC g84103columbia.jpg GRAPHIC 1398
50 GRAPHIC g84103dart.jpg GRAPHIC 778
51 GRAPHIC g84103exclamation.jpg GRAPHIC 829
52 GRAPHIC g84103horse.jpg GRAPHIC 755
53 GRAPHIC g84103linegraph.jpg GRAPHIC 738
54 GRAPHIC g84103smallhand.jpg GRAPHIC 660
55 GRAPHIC g84103tx_001.jpg GRAPHIC 2376
56 GRAPHIC g84165acorn.jpg GRAPHIC 5977
57 GRAPHIC g84165bighand.jpg GRAPHIC 767
58 GRAPHIC g84165calculator.jpg GRAPHIC 766
59 GRAPHIC g84165columbia.jpg GRAPHIC 1398
60 GRAPHIC g84165dart.jpg GRAPHIC 778
61 GRAPHIC g84165exclamation.jpg GRAPHIC 829
62 GRAPHIC g84165horse.jpg GRAPHIC 755
63 GRAPHIC g84165linegraph.jpg GRAPHIC 738
64 GRAPHIC g84165smallhand.jpg GRAPHIC 660
65 GRAPHIC g84165tx_001.jpg GRAPHIC 2376
66 GRAPHIC g84233acorn.jpg GRAPHIC 5977
67 GRAPHIC g84233bighand.jpg GRAPHIC 767
68 GRAPHIC g84233calculator.jpg GRAPHIC 766
69 GRAPHIC g84233columbia.jpg GRAPHIC 1398
70 GRAPHIC g84233dart.jpg GRAPHIC 778
71 GRAPHIC g84233exclamation.jpg GRAPHIC 829
72 GRAPHIC g84233horse.jpg GRAPHIC 755
73 GRAPHIC g84233linegraph.jpg GRAPHIC 738
74 GRAPHIC g84233smallhand.jpg GRAPHIC 660
75 GRAPHIC g84233tx_001.jpg GRAPHIC 2376
76 GRAPHIC g84234acorn.jpg GRAPHIC 5977
77 GRAPHIC g84234bighand.jpg GRAPHIC 767
78 GRAPHIC g84234calculator.jpg GRAPHIC 766
79 GRAPHIC g84234columbia.jpg GRAPHIC 1398
80 GRAPHIC g84234dart.jpg GRAPHIC 778
81 GRAPHIC g84234exclamation.jpg GRAPHIC 829
82 GRAPHIC g84234horse.jpg GRAPHIC 755
83 GRAPHIC g84234linegraph.jpg GRAPHIC 738
84 GRAPHIC g84234smallhand.jpg GRAPHIC 660
85 GRAPHIC g84234tx_001.jpg GRAPHIC 2376
86 GRAPHIC g84239acorn.jpg GRAPHIC 5977
87 GRAPHIC g84239bighand.jpg GRAPHIC 767
88 GRAPHIC g84239calculator.jpg GRAPHIC 766
89 GRAPHIC g84239columbia.jpg GRAPHIC 1398
90 GRAPHIC g84239dart.jpg GRAPHIC 778
91 GRAPHIC g84239exclamation.jpg GRAPHIC 829
92 GRAPHIC g84239horse.jpg GRAPHIC 755
93 GRAPHIC g84239linegraph.jpg GRAPHIC 738
94 GRAPHIC g84239smallhand.jpg GRAPHIC 660
95 GRAPHIC g84239tx_001.jpg GRAPHIC 2376
96 GRAPHIC g84243acorn.jpg GRAPHIC 5977
97 GRAPHIC g84243bighand.jpg GRAPHIC 767
98 GRAPHIC g84243calculator.jpg GRAPHIC 766
99 GRAPHIC g84243columbia.jpg GRAPHIC 1398
100 GRAPHIC g84243dart.jpg GRAPHIC 778
101 GRAPHIC g84243exclamation.jpg GRAPHIC 829
102 GRAPHIC g84243horse.jpg GRAPHIC 755
103 GRAPHIC g84243linegraph.jpg GRAPHIC 738
104 GRAPHIC g84243smallhand.jpg GRAPHIC 660
105 GRAPHIC g84243tx_001.jpg GRAPHIC 2376
106 GRAPHIC g84251acorn.jpg GRAPHIC 5977
107 GRAPHIC g84251bighand.jpg GRAPHIC 767
108 GRAPHIC g84251calculator.jpg GRAPHIC 766
109 GRAPHIC g84251columbia.jpg GRAPHIC 1398
110 GRAPHIC g84251dart.jpg GRAPHIC 778
111 GRAPHIC g84251exclamation.jpg GRAPHIC 829
112 GRAPHIC g84251horse.jpg GRAPHIC 755
113 GRAPHIC g84251linegraph.jpg GRAPHIC 738
114 GRAPHIC g84251smallhand.jpg GRAPHIC 660
115 GRAPHIC g84251tx_001.jpg GRAPHIC 2376
116 GRAPHIC g84259acorn.jpg GRAPHIC 5977
117 GRAPHIC g84259bighand.jpg GRAPHIC 767
118 GRAPHIC g84259calculator.jpg GRAPHIC 766
119 GRAPHIC g84259columbia.jpg GRAPHIC 1398
120 GRAPHIC g84259dart.jpg GRAPHIC 778
121 GRAPHIC g84259exclamation.jpg GRAPHIC 829
122 GRAPHIC g84259horse.jpg GRAPHIC 755
123 GRAPHIC g84259linegraph.jpg GRAPHIC 738
124 GRAPHIC g84259smallhand.jpg GRAPHIC 660
125 GRAPHIC g84259tx_001.jpg GRAPHIC 2376
126 GRAPHIC g85359acorn.jpg GRAPHIC 5977
127 GRAPHIC g85359bighand.jpg GRAPHIC 767
128 GRAPHIC g85359calculator.jpg GRAPHIC 766
129 GRAPHIC g85359columbia.jpg GRAPHIC 1398
130 GRAPHIC g85359dart.jpg GRAPHIC 778
131 GRAPHIC g85359exclamation.jpg GRAPHIC 829
132 GRAPHIC g85359horse.jpg GRAPHIC 755
133 GRAPHIC g85359linegraph.jpg GRAPHIC 738
134 GRAPHIC g85359smallhand.jpg GRAPHIC 660
135 GRAPHIC g85359tx_001.jpg GRAPHIC 2376
136 GRAPHIC g85640acorn.jpg GRAPHIC 5977
137 GRAPHIC g85640bighand.jpg GRAPHIC 767
138 GRAPHIC g85640calculator.jpg GRAPHIC 766
139 GRAPHIC g85640columbia.jpg GRAPHIC 1398
140 GRAPHIC g85640dart.jpg GRAPHIC 778
141 GRAPHIC g85640exclamation.jpg GRAPHIC 829
142 GRAPHIC g85640horse.jpg GRAPHIC 755
143 GRAPHIC g85640linegraph.jpg GRAPHIC 738
144 GRAPHIC g85640smallhand.jpg GRAPHIC 660
145 GRAPHIC g85640tx_001.jpg GRAPHIC 2376
146 GRAPHIC g85687acorn.jpg GRAPHIC 5977
147 GRAPHIC g85687bighand.jpg GRAPHIC 767
148 GRAPHIC g85687calculator.jpg GRAPHIC 766
149 GRAPHIC g85687columbia.jpg GRAPHIC 1398
150 GRAPHIC g85687dart.jpg GRAPHIC 778
151 GRAPHIC g85687exclamation.jpg GRAPHIC 829
152 GRAPHIC g85687horse.jpg GRAPHIC 755
153 GRAPHIC g85687linegraph.jpg GRAPHIC 738
154 GRAPHIC g85687smallhand.jpg GRAPHIC 660
155 GRAPHIC g85687tx_001.jpg GRAPHIC 2376
156 GRAPHIC g85730acorn.jpg GRAPHIC 5977
157 GRAPHIC g85730bighand.jpg GRAPHIC 767
158 GRAPHIC g85730calculator.jpg GRAPHIC 766
159 GRAPHIC g85730columbia.jpg GRAPHIC 1398
160 GRAPHIC g85730dart.jpg GRAPHIC 778
161 GRAPHIC g85730exclamation.jpg GRAPHIC 829
162 GRAPHIC g85730horse.jpg GRAPHIC 755
163 GRAPHIC g85730linegraph.jpg GRAPHIC 738
164 GRAPHIC g85730smallhand.jpg GRAPHIC 660
165 GRAPHIC g85730tx_001.jpg GRAPHIC 2376
166 GRAPHIC g85742acorn.jpg GRAPHIC 5977
167 GRAPHIC g85742bighand.jpg GRAPHIC 767
168 GRAPHIC g85742calculator.jpg GRAPHIC 766
169 GRAPHIC g85742columbia.jpg GRAPHIC 1398
170 GRAPHIC g85742dart.jpg GRAPHIC 778
171 GRAPHIC g85742exclamation.jpg GRAPHIC 829
172 GRAPHIC g85742horse.jpg GRAPHIC 755
173 GRAPHIC g85742linegraph.jpg GRAPHIC 738
174 GRAPHIC g85742tx_001.jpg GRAPHIC 2376
175 GRAPHIC g85754acorn.jpg GRAPHIC 5977
176 GRAPHIC g85754bighand.jpg GRAPHIC 767
177 GRAPHIC g85754calculator.jpg GRAPHIC 766
178 GRAPHIC g85754columbia.jpg GRAPHIC 1398
179 GRAPHIC g85754dart.jpg GRAPHIC 778
180 GRAPHIC g85754exclamation.jpg GRAPHIC 829
181 GRAPHIC g85754horse.jpg GRAPHIC 755
182 GRAPHIC g85754linegraph.jpg GRAPHIC 738
183 GRAPHIC g85754smallhand.jpg GRAPHIC 660
184 GRAPHIC g85754tx_001.jpg GRAPHIC 2376
185 filename185.htm CORRESP 3592
  Complete submission text file 0001193125-10-042190.txt   7643090

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
  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
  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
  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
  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
  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
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: 485APOS | Act: 33 | File No.: 002-34223 | Film No.: 10637327

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: 485APOS | Act: 40 | File No.: 811-01829 | Film No.: 10637328