Amylyx Pharmaceuticals, 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.
- 2026-03-03: Fiscal year end 2025-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location Boston, Massachusetts.
- 2025-03-04: Fiscal year end 2024-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location Boston, Massachusetts.
- 2024-02-22: Fiscal year end 2023-12-31; Auditor Deloitte & Touche LLP; PCAOB firm ID 34; Location Boston, Massachusetts.
- 2023-03-13: Fiscal year end 2022-12-31; Auditor Deloitte & Touche, LLC; PCAOB firm ID 34; Location Boston, Massachusetts.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
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| 2026-03-03 | 2025-12-31 | Deloitte & Touche LLP | 34 | Boston, Massachusetts | No |
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| 2025-03-04 | 2024-12-31 | Deloitte & Touche LLP | 34 | Boston, Massachusetts | Yes |
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| 2024-02-22 | 2023-12-31 | Deloitte & Touche LLP | 34 | Boston, Massachusetts | Yes |
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| 2023-03-13 | 2022-12-31 | Deloitte & Touche, LLC | 34 | Boston, Massachusetts | No |
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| 2022-03-31 | 2021-12-31 | Deloitte & Touche LLP | | Boston, Massachusetts | |
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