OPPENHEIMER HOLDINGS INC. Auditor
The independent registered public accounting firm that signed the audit report in each annual report on Form 10-K, newest first. PCAOB firm ID and the internal-control attestation are as tagged on the cover from fiscal 2021; earlier rows come from the signed report text.
- 2026-02-26: Fiscal year end 2025-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2025-02-27: Fiscal year end 2024-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2024-03-01: Fiscal year end 2023-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
- 2023-03-03: Fiscal year end 2022-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location New York, New York.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
|---|---|---|---|---|---|
| 2026-02-26 | 2025-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2025-02-27 | 2024-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2024-03-01 | 2023-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2023-03-03 | 2022-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2023-02-28 | 2022-12-31 | Deloitte & Touche LLP | 34 | New York, New York | Yes |
| 2022-02-28 | 2021-12-31 | Deloitte & Touche LLP | 34 | New York, NY | Yes |
| 2021-03-01 | 2020-12-31 | Deloitte & Touche LLP | New York, NY | Yes | |
| 2020-03-02 | 2019-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2019-03-01 | 2018-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2018-03-02 | 2017-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2017-03-03 | 2016-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2016-03-04 | 2015-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2015-03-06 | 2014-12-31 | Deloitte & Touche LLP | New York, NY | ||
| 2014-03-07 | 2013-12-31 | Deloitte & Touche LLP | New York, New York | ||
| 2013-03-06 | 2012-12-31 | PricewaterhouseCoopers LLP | New York, New York | ||
| 2012-03-06 | 2011-12-31 | PricewaterhouseCoopers LLP | New York, New York | ||
| 2011-03-02 | 2010-12-31 | PricewaterhouseCoopers LLP | New York, New York | ||
| 2010-03-05 | 2009-12-31 | PricewaterhouseCoopers LLP | New York, New York |