John Henry O'Brien is an investment adviser representative (IAR) with state registration records since 2016, appearing at 5 firms. Currently registered with J.P. MORGAN SECURITIES LLC.
| Firm | From | To | Current |
|---|---|---|---|
| J.P. MORGAN SECURITIES LLC | 2025-09-29 | present | Yes |
| ALLIANCEBERNSTEIN L.P. | 2023-11-13 | 2025-10-02 | — |
| NOMURA INVESTMENT MANAGEMENT BUSINESS TRUST | 2020-04-20 | 2023-09-21 | — |
| DELAWARE CAPITAL MANAGEMENT ADVISERS, INC | 2017-10-18 | 2020-04-20 | — |
| EATON VANCE MANAGEMENT | 2016-07-18 | 2017-09-11 | — |