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 | |
| Class/Contract C000122735 | Columbia Acorn Fund Class R4 | CEARX | |
| Class/Contract C000122736 | Columbia Acorn Fund Class R5 | CRBRX | |
| Class/Contract C000122737 | Columbia Acorn Fund Class Y | CRBYX | |
| 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 | CAIRX | |
| Class/Contract C000122738 | Columbia Acorn International Class R4 | CCIRX | |
| Class/Contract C000122739 | Columbia Acorn International Class Y | CCYIX | |
| 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 | |
| Class/Contract C000122740 | Columbia Acorn USA Class R4 | CUSAX | |
| Class/Contract C000122741 | Columbia Acorn USA Class R5 | CYSRX | |
| Class/Contract C000122742 | Columbia Acorn USA Class Y | CUSYX | |
| 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 | |
| Class/Contract C000122743 | Columbia Acorn Select Class R4 | CSSRX | |
| Class/Contract C000122744 | Columbia Acorn Select Class R5 | CSLRX | |
| Class/Contract C000122745 | Columbia Acorn Select Class Y | CSLYX | |
| 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 | |
| Class/Contract C000122746 | Columbia Acorn International Select Class R5 | CRIRX | |
| Class/Contract C000122747 | Columbia Acorn International Select Class Y | CSIRX | |
| Class/Contract C000122748 | Columbia Acorn International Select Class R4 | CILRX | |
| 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 | |
| Class/Contract C000122749 | Columbia Thermostat Fund Class R4 | CTORX | |
| Class/Contract C000122750 | Columbia Thermostat Fund Class R5 | CQTRX | |
| Class/Contract C000122751 | Columbia Thermostat Fund Class Y | 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 C000103326 | Columbia Acorn European Fund Class I | CAFIX | |
| Class/Contract C000103327 | Columbia Acorn European Fund Class Z | CAEZX | |
| Class/Contract C000122752 | Columbia Acorn European Fund Class R5 | CAEEX | |
| Class/Contract C000144049 | Columbia Acorn European Fund Class R4 | CLOFX | |
| 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 | |
| Class/Contract C000122753 | Columbia Acorn Emerging Markets Fund Class R4 | CAERX | |
| Class/Contract C000122754 | Columbia Acorn Emerging Markets Fund Class R5 | CANRX | |
| Class/Contract C000128887 | Columbia Acorn Emerging Markets Fund Class Y | CPHRX | |
IRS No.: 362692100 | State of Incorp.: MA | Fiscal Year End: 1231
Type: N-30B-2 | Act: 40 | File No.: 811-01829 | Film No.: 15895146
