GORDON THOMAS HASSLINGER is an investment adviser representative (IAR) with state registration records since 2025, appearing at 2 firms. Currently registered with VANGUARD ADVISERS, INC..
| Firm | From | To | Current |
|---|---|---|---|
| VANGUARD ADVISERS, INC. | 2026-04-02 | present | Yes |
| OPPENHEIMER & CO. INC. | 2025-08-14 | 2026-03-06 | — |