Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0001257951 | |||
| Series S000010047 | Pioneer Oak Ridge Small Cap Growth Fund | ||
| Class/Contract C000027825 | Pioneer Oak Ridge Small Cap Growth Fund: Class A | ORIGX | |
| Class/Contract C000027826 | Pioneer Oak Ridge Small Cap Growth Fund: Class B | ORIBX | |
| Class/Contract C000027827 | Pioneer Oak Ridge Small Cap Growth Fund: Class C | ORICX | |
| Class/Contract C000082461 | Class Y Shares | ||
| Class/Contract C000115369 | Pioneer Oak Ridge Small Cap Growth Fund: Class R | ||
| Class/Contract C000123838 | Pioneer Oak Ridge Small Cap Growth Fund: Class K | ||
IRS No.: 000000000 | State of Incorp.: DE
Type: 485BPOS | Act: 33 | File No.: 333-108472 | Film No.: 13510731
IRS No.: 000000000 | State of Incorp.: DE
Type: 485BPOS | Act: 40 | File No.: 811-21425 | Film No.: 13510732