OPY - CIK 0000791963
OPPENHEIMER HOLDINGS INC has filed 958 documents with the SEC between 1996 and 2026. The most frequent type is insider trade (354 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| 424B3 | - | 2011-07-12 | - |
| Company correspondence | CORRESP | 2011-07-08 | - |
| S-4/A | - | 2011-07-08 | - |
| SEC correspondence | UPLOAD | 2011-06-30 | - |
| SEC correspondence | UPLOAD | 2011-06-30 | - |
| Employee plan annual report | 11-K | 2011-06-28 | 2010-12-31 |
| Securities registration | S-3 | 2011-06-16 | - |
| S-4 | - | 2011-06-16 | - |
| Major company event | 8-K | 2011-06-16 | 2011-06-16 |
| Passive ownership stake (update) | SC 13G/A | 2011-06-08 | - |
| Passive ownership stake (update) | SC 13G/A | 2011-05-18 | - |
| New insider ownership | 3 | 2011-05-13 | 2011-05-09 |
| Major company event | 8-K | 2011-05-11 | 2011-05-09 |
| Quarterly report | 10-Q | 2011-05-05 | 2011-03-31 |
| Major company event | 8-K | 2011-04-12 | 2011-04-12 |
| Major company event | 8-K | 2011-04-06 | 2011-04-06 |
| Major company event | 8-K | 2011-03-30 | 2011-03-30 |
| Proxy statement | DEF 14A | 2011-03-28 | 2011-05-09 |
| Annual report | 10-K | 2011-03-02 | 2010-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2011-02-23 | - |
| Annual insider summary | 5 | 2011-02-16 | 2010-12-31 |
| Passive ownership stake (update) | SC 13G/A | 2011-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 2011-02-14 | - |
| Insider trade | 4 | 2011-02-01 | 2011-01-27 |
| Insider trade | 4 | 2011-02-01 | 2011-01-27 |
| Insider trade | 4 | 2011-02-01 | 2011-01-27 |
| Insider trade | 4 | 2011-01-18 | 2011-01-18 |
| Insider trade | 4 | 2011-01-04 | 2011-01-01 |
| Insider trade | 4 | 2011-01-04 | 2011-01-01 |
| Insider trade | 4 | 2011-01-04 | 2011-01-01 |
| Insider trade | 4 | 2011-01-04 | 2011-01-01 |
| Insider trade | 4 | 2010-12-29 | 2010-12-29 |
| Insider trade | 4 | 2010-12-22 | 2010-12-21 |
| Quarterly report | 10-Q | 2010-11-09 | 2010-09-30 |
| Insider trade | 4 | 2010-10-08 | 2010-10-06 |
| Insider trade | 4 | 2010-09-21 | 2010-09-21 |
| Insider trade | 4 | 2010-08-04 | 2010-08-03 |
| Quarterly report | 10-Q | 2010-08-03 | 2010-06-30 |
| Employee plan annual report | 11-K | 2010-06-28 | 2009-12-31 |
| Major company event | 8-K | 2010-05-12 | 2010-05-11 |
| Quarterly report | 10-Q | 2010-05-07 | 2010-03-31 |
| Proxy statement | DEF 14A | 2010-03-29 | 2010-05-10 |
| Annual report | 10-K | 2010-03-05 | 2009-12-31 |
| Major company event | 8-K | 2010-02-26 | 2010-02-26 |
| Insider trade | 4 | 2010-02-16 | 2009-01-01 |
| Passive ownership stake (update) | SC 13G/A | 2010-02-16 | - |
| Insider trade | 4 | 2010-02-12 | 2009-01-01 |
| Insider trade | 4 | 2010-02-10 | 2009-01-15 |
| Insider trade | 4 | 2010-02-09 | 2010-02-05 |
| Insider trade | 4 | 2010-02-09 | 2010-02-05 |