| Date Filed | Type | Description |
| 07/31/2023 |
8-K
| Quarterly results |
| 07/28/2023 |
8-K
| Quarterly results |
| 07/28/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 07/07/2023 |
SC 13G/A
| BlackRock Inc. reports a 1.8% stake in OPPENHEIMER HOLDINGS INC |
| 07/06/2023 |
SC TO-I/A
| Form SC TO-I/A - Tender offer statement by Issuer: [Amend] |
| 06/29/2023 |
SC TO-I/A
| Form SC TO-I/A - Tender offer statement by Issuer: [Amend] |
| 06/08/2023 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 05/31/2023 |
SC TO-I
| Form SC TO-I - Tender offer statement by Issuer: |
| 05/09/2023 |
8-K
| Submission of Matters to a Vote of Security Holders, Regulation FD Disclosure, Financial Statements and Exhibits &... |
| 05/01/2023 |
8-K
| Quarterly results |
| 04/28/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 04/28/2023 |
8-K
| Quarterly results |
| 03/17/2023 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 03/14/2023 |
ARS
| Form ARS - Annual Report to Security Holders: |
| 03/03/2023 |
10-K/A
| Annual Report for the period ended December 31, 2022 [amend] |
| 02/08/2023 |
5
| Lowenthal Robert S (Director) has filed a Form 5 on OPPENHEIMER HOLDINGS INC |
| 02/08/2023 |
5
| LOWENTHAL ALBERT G (CEO) has filed a Form 5 on OPPENHEIMER HOLDINGS INC |
| 02/01/2023 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 01/30/2023 |
8-K
| Other Events Interactive Data |
| 01/30/2023 |
8-K
| Regulation FD Disclosure, Financial Statements and Exhibits Interactive Data |
| 01/27/2023 |
8-K
| Results of Operations and Financial Condition, Financial Statements and Exhibits Interactive Data |
| 12/14/2022 |
8-K
| Quarterly results |
| 10/31/2022 |
8-K
| Quarterly results |
| 10/28/2022 |
8-K
| Quarterly results |
| 10/28/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 09/07/2022 |
8-K
| Other Events Interactive Data |
| 08/02/2022 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 08/01/2022 |
8-K
| Regulation FD Disclosure, Financial Statements and Exhibits Interactive Data |
| 07/29/2022 |
8-K
| Other Events, Financial Statements and Exhibits Interactive Data |
| 07/29/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 07/29/2022 |
8-K
| Quarterly results |
| 06/16/2022 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 05/24/2022 |
8-K
| Quarterly results |
| 05/10/2022 |
8-K
| Quarterly results |
|