| 2026-08-03 | 8-K | 8-K filed 2026-08-03 by OPPENHEIMER HOLDINGS INC |
| 2026-07-31 | 8-K | 8-K filed 2026-07-31 by OPPENHEIMER HOLDINGS INC |
| 2026-07-31 | 10-Q | 10-Q filed 2026-07-31 by OPPENHEIMER HOLDINGS INC |
| 2026-05-05 | 8-K | 8-K filed 2026-05-05 by OPPENHEIMER HOLDINGS INC |
| 2026-05-04 | 8-K | 8-K filed 2026-05-04 by OPPENHEIMER HOLDINGS INC |
| 2026-05-01 | 8-K | 8-K filed 2026-05-01 by OPPENHEIMER HOLDINGS INC |
| 2026-05-01 | 10-Q | 10-Q filed 2026-05-01 by OPPENHEIMER HOLDINGS INC |
| 2026-04-27 | 8-K | 8-K filed 2026-04-27 by OPPENHEIMER HOLDINGS INC |
| 2026-03-13 | DEF 14A | DEF 14A filed 2026-03-13 by OPPENHEIMER HOLDINGS INC |
| 2026-02-26 | 10-K | 10-K filed 2026-02-26 by OPPENHEIMER HOLDINGS INC |
| 2026-02-02 | 8-K | 8-K filed 2026-02-02 by OPPENHEIMER HOLDINGS INC |
| 2026-01-30 | 8-K | 8-K filed 2026-01-30 by OPPENHEIMER HOLDINGS INC |
| 2025-12-12 | 8-K | 8-K filed 2025-12-12 by OPPENHEIMER HOLDINGS INC |
| 2025-11-03 | 8-K | 8-K filed 2025-11-03 by OPPENHEIMER HOLDINGS INC |
| 2025-10-31 | 8-K | 8-K filed 2025-10-31 by OPPENHEIMER HOLDINGS INC |
| 2025-10-31 | 10-Q | 10-Q filed 2025-10-31 by OPPENHEIMER HOLDINGS INC |
| 2025-08-04 | 8-K | 8-K filed 2025-08-04 by OPPENHEIMER HOLDINGS INC |
| 2025-08-01 | 10-Q | 10-Q filed 2025-08-01 by OPPENHEIMER HOLDINGS INC |
| 2025-08-01 | 8-K | 8-K filed 2025-08-01 by OPPENHEIMER HOLDINGS INC |
| 2025-05-06 | 8-K | 8-K filed 2025-05-06 by OPPENHEIMER HOLDINGS INC |
| 2025-04-28 | 8-K | 8-K filed 2025-04-28 by OPPENHEIMER HOLDINGS INC |
| 2025-04-25 | 10-Q | 10-Q filed 2025-04-25 by OPPENHEIMER HOLDINGS INC |
| 2025-04-25 | 8-K | 8-K filed 2025-04-25 by OPPENHEIMER HOLDINGS INC |
| 2025-03-14 | DEF 14A | DEF 14A filed 2025-03-14 by OPPENHEIMER HOLDINGS INC |
| 2025-02-27 | 8-K | 8-K filed 2025-02-27 by OPPENHEIMER HOLDINGS INC |
| 2025-02-27 | 10-K | 10-K filed 2025-02-27 by OPPENHEIMER HOLDINGS INC |
| 2025-02-03 | 8-K | 8-K filed 2025-02-03 by OPPENHEIMER HOLDINGS INC |
| 2025-01-31 | 8-K | 8-K filed 2025-01-31 by OPPENHEIMER HOLDINGS INC |
| 2024-10-28 | 8-K | 8-K filed 2024-10-28 by OPPENHEIMER HOLDINGS INC |
| 2024-10-25 | 8-K | 8-K filed 2024-10-25 by OPPENHEIMER HOLDINGS INC |