Series and Classes/Contracts Information:
| Existing | |||
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001094 | ROBECO BP SMALL CAP VALUE II | ||
| Class/Contract C000002982 | INSTITUTIONAL | BPSIX | |
| Class/Contract C000002983 | INVESTOR | BPSCX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001095 | ROBECO WPG LARGE CAP GROWTH FUND | ||
| Class/Contract C000002984 | INSTITUTIONAL | WPGLX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001096 | ROBECO WPG CORE BOND FUND | ||
| Class/Contract C000002985 | INSTITUTIONAL | WPGCX | |
| Class/Contract C000002986 | RETIREMENT | WPGIX | |
| Class/Contract C000010816 | INVESTOR | WPGBX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001097 | ROBECO WPG TUDOR FUND | ||
| Class/Contract C000002987 | INSTITUTIONAL | WPGTX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001106 | ROBECO BP ALL-CAP | ||
| Class/Contract C000002997 | INSTITUTIONAL | BPAIX | |
| Class/Contract C000002998 | INVESTOR | BPAVX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001107 | ROBECO BP LARGE CAP VALUE | ||
| Class/Contract C000002999 | INSTITUTIONAL | BPLAX | |
| Class/Contract C000003000 | INVESTOR | BPLIX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001108 | ROBECO BP LONG/SHORT EQUITY | ||
| Class/Contract C000003001 | INSTITUTIONAL | BPLSX | |
| Class/Contract C000003002 | INVESTOR | BPLEX | |
| Status | Name | Ticker Symbol | |
| CIK 0000831114 | |||
| Series S000001109 | ROBECO BP MID CAP VALUE FUND | ||
| Class/Contract C000003003 | INSTITUTIONAL | BPMIX | |
| Class/Contract C000003004 | INVESTOR | BPMCX | |
EIN.: 510312196 | State of Incorp.: MD | Fiscal Year End: 0831
Type: 497 | Act: 33 | File No.: 033-20827 | Film No.: 061098037