OPPENHEIMER HOLDINGS INC — All Filings
949 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
All
10-12B
10-K
10-K/A
10-Q
10-Q/A
11-K
144
3
3/A
4
4/A
40-APP
424B3
5
8-A12B
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEL AM
EFFECT
NT 10-Q
PRE 14A
RW
S-3
S-3/A
S-4
S-4/A
S-8
S-8 POS
SC 13D
SC 13G
SC 13G/A
SC TO-I
SC TO-I/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0001104659-26-027365 | Mar 13, 2026 | May 4, 2026 |
| 4 | FORM 4 | 0001628280-26-013646 | Mar 3, 2026 | Feb 26, 2026 |
| 4 | FORM 4 | 0001628280-26-013643 | Mar 3, 2026 | Mar 2, 2026 |
| 4 | FORM 4 | 0001628280-26-013645 | Mar 3, 2026 | Feb 26, 2026 |
| PRE 14A | PRE 14A | 0001104659-26-021942 | Mar 2, 2026 | May 4, 2026 |
| 4 | FORM 4 | 0001628280-26-012634 | Feb 27, 2026 | Feb 26, 2026 |
| 4 | FORM 4 | 0001628280-26-012626 | Feb 27, 2026 | Feb 26, 2026 |
| 4 | FORM 4 | 0001628280-26-012632 | Feb 27, 2026 | Feb 26, 2026 |
| 4 | FORM 4 | 0001628280-26-012628 | Feb 27, 2026 | Feb 26, 2026 |
| 4 | FORM 4 | 0001628280-26-012630 | Feb 27, 2026 | Feb 26, 2026 |
| ARS | ARS | 0001628280-26-012326 | Feb 26, 2026 | Dec 31, 2025 |
| 10-K | 10-K | 0001628280-26-012313 | Feb 26, 2026 | Dec 31, 2025 |
| 5 | FORM 5 | 0001628280-26-006375 | Feb 9, 2026 | Dec 31, 2025 |
| 5 | FORM 5 | 0001628280-26-006378 | Feb 9, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001628280-26-004480 | Feb 2, 2026 | — |
| 8-K | 8-K | 0001628280-26-004298 | Jan 30, 2026 | — |
| 4 | FORM 4 | 0001628280-26-004165 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-004160 | Jan 29, 2026 | Sep 22, 2025 |
| 4 | FORM 4 | 0001628280-26-004161 | Jan 29, 2026 | Jan 28, 2026 |
| 4 | FORM 4 | 0001628280-26-004163 | Jan 29, 2026 | Jan 28, 2026 |
| 8-K | 8-K | 0001628280-25-056657 | Dec 12, 2025 | Dec 11, 2025 |
| 40-APP | 40-APP | 0001104659-25-118534 | Dec 5, 2025 | — |
| 8-K | 8-K | 0001628280-25-048003 | Nov 3, 2025 | — |
| 10-Q | 10-Q | 0001628280-25-047684 | Oct 31, 2025 | Sep 30, 2025 |
| 8-K | 8-K | 0001628280-25-047686 | Oct 31, 2025 | — |
| 4 | FORM 4 | 0001395774-25-000006 | Aug 6, 2025 | Aug 5, 2025 |
| 8-K | 8-K | 0000791963-25-000041 | Aug 4, 2025 | — |
| 10-Q | 10-Q | 0000791963-25-000037 | Aug 1, 2025 | Jun 30, 2025 |
| 8-K | 8-K | 0000791963-25-000038 | Aug 1, 2025 | — |
| 144 | — | 0001950047-25-004117 | Jun 10, 2025 | — |
| 4 | FORM 4 | 0001648181-25-000008 | Jun 10, 2025 | Jun 9, 2025 |
| 144 | — | 0001950047-25-004048 | Jun 9, 2025 | — |
| 4 | FORM 4 | 0001648181-25-000004 | Jun 9, 2025 | Jun 6, 2025 |
| 144 | — | 0001950047-25-003972 | Jun 6, 2025 | — |
| 11-K | 11-K | 0000791963-25-000034 | Jun 4, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0000791963-25-000026 | May 6, 2025 | May 5, 2025 |
| 8-K | 8-K | 0000791963-25-000024 | Apr 28, 2025 | — |
| 10-Q | 10-Q | 0000791963-25-000022 | Apr 25, 2025 | Mar 31, 2025 |
| 8-K | 8-K | 0000791963-25-000020 | Apr 25, 2025 | — |
| DEF 14A | FORM DEF 14A | 0001104659-25-023748 | Mar 14, 2025 | May 5, 2025 |
| ARS | ARS | 0000791963-25-000015 | Mar 5, 2025 | Dec 31, 2024 |
| 10-K | 10-K | 0000791963-25-000010 | Feb 27, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0000791963-25-000008 | Feb 27, 2025 | — |
| 5 | FORM 5 | 0001041339-25-000005 | Feb 7, 2025 | Dec 31, 2024 |
| 5 | FORM 5 | 0001594628-25-000004 | Feb 7, 2025 | Dec 31, 2024 |
| 8-K | 8-K | 0000791963-25-000005 | Feb 3, 2025 | — |
| 4 | FORM 4 | 0001215176-25-000002 | Jan 31, 2025 | Jan 30, 2025 |
| 4 | FORM 4 | 0001775404-25-000002 | Jan 31, 2025 | Jan 30, 2025 |
| 4 | FORM 4 | 0002014257-25-000002 | Jan 31, 2025 | Jan 30, 2025 |
| 4 | FORM 4 | 0001741163-25-000002 | Jan 31, 2025 | Jan 30, 2025 |