WILLIAM JOHN SEMPOLINSKI is an investment adviser representative (IAR) with state registration records since 1999, appearing at 2 firms. Currently registered with SEMPOLINSKI, WILLIAM JOHN.
| Firm | From | To | Current |
|---|---|---|---|
| SEMPOLINSKI, WILLIAM JOHN | 2025-10-07 | present | Yes |
| COMMONWEALTH EQUITY SERVICES, LLC | 1999-02-18 | 2025-10-08 | — |