Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0001097519 | |||
| Series S000010826 | Columbia Mid Cap Index Fund | ||
| Class/Contract C000094660 | Class I | CIDIX | |
| Class/Contract C000122594 | Class R5 | CPXRX | |
IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 0331
Type: 497 | Act: 33 | File No.: 333-89661 | Film No.: 121229087