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 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 | |
IRS No.: 362692100 | State of Incorp.: MA | Fiscal Year End: 1231
Type: 497 | Act: 33 | File No.: 002-34223 | Film No.: 21669855