AMERICAN SUPERCONDUCTOR CORP /DE/ 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.
- 2026-05-27: Fiscal year end 2026-03-31; Auditor RSM US LLP; PCAOB firm ID 49; Location Boston, MA.
- 2025-05-21: Fiscal year end 2025-03-31; Auditor RSM US LLP; PCAOB firm ID 49; Location Boston, MA.
- 2024-05-29: Fiscal year end 2024-03-31; Auditor RSM US LLP; PCAOB firm ID 49; Location Boston, MA.
- 2023-05-31: Fiscal year end 2023-03-31; Auditor RSM US LLP; PCAOB firm ID 49; Location Boston, MA.
| Filed | Fiscal year end | Auditor | PCAOB firm ID | Location | Internal-control attestation |
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| 2026-05-27 | 2026-03-31 | RSM US LLP | 49 | Boston, MA | Yes |
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| 2025-05-21 | 2025-03-31 | RSM US LLP | 49 | Boston, MA | Yes |
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| 2024-05-29 | 2024-03-31 | RSM US LLP | 49 | Boston, MA | Yes |
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| 2023-05-31 | 2023-03-31 | RSM US LLP | 49 | Boston, MA | Yes |
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| 2022-06-01 | 2022-03-31 | RSM US LLP | 49 | Boston, MA | No |
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| 2021-06-02 | 2021-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2020-06-02 | 2020-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2019-06-05 | 2019-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2018-06-06 | 2018-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2017-05-25 | 2017-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2016-05-31 | 2016-03-31 | RSM US LLP | | Boston, Massachusetts | |
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| 2015-05-28 | 2015-03-31 | McGladrey LLP | | Boston, Massachusetts | |
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| 2014-06-05 | 2014-03-31 | McGladrey, LLP | | Boston, Massachusetts | |
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| 2013-06-14 | 2013-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2012-06-26 | 2012-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2012-06-06 | 2012-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2011-09-23 | 2011-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2010-05-27 | 2010-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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| 2009-05-28 | 2009-03-31 | PricewaterhouseCoopers LLP | | Boston, Massachusetts | |
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