X4 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.
- 2026-03-17: Fiscal year end 2025-12-31; Auditor PricewaterhouseCoopers LLP; PCAOB firm ID 238; Location Boston, Massachusetts, US.
- 2025-03-26: Fiscal year end 2024-12-31; Auditor PricewaterhouseCoopers LLP; PCAOB firm ID 238; Location Boston, Massachusetts, US.
- 2024-03-21: Fiscal year end 2023-12-31; Auditor PricewaterhouseCoopers LLP; PCAOB firm ID 238; Location Boston, Massachusetts, US.
- 2023-03-21: Fiscal year end 2022-12-31; Auditor PricewaterhouseCoopers LLP; PCAOB firm ID 238; Location Boston, Massachusetts, US.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
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| 2026-03-17 | 2025-12-31 | PricewaterhouseCoopers LLP | 238 | Boston, Massachusetts, US | |
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| 2025-03-26 | 2024-12-31 | PricewaterhouseCoopers LLP | 238 | Boston, Massachusetts, US | No |
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| 2024-03-21 | 2023-12-31 | PricewaterhouseCoopers LLP | 238 | Boston, Massachusetts, US | No |
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| 2023-03-21 | 2022-12-31 | PricewaterhouseCoopers LLP | 238 | Boston, Massachusetts, US | No |
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| 2022-03-17 | 2021-12-31 | PricewaterhouseCoopers LLP | 238 | Boston, Massachusetts, US | No |
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| 2021-03-19 | 2020-12-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | No |
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| 2020-03-12 | 2019-12-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2019-03-11 | 2018-12-31 | PricewaterhouseCoopers LLP | | Boston, MA | |
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| 2018-03-09 | 2017-12-31 | PricewaterhouseCoopers LLP | | Boston, MA | |
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