American Superconductor Corporation
Last updated September 27, 2026
Organization details
- Legal name
- American Superconductor Corporation
- Ownership
- Public
- Status
- Active
- SIC code
- 3621 — Motors & Generators
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- Devens
- Headquarters state / province
- Massachusetts
- Headquarters country
- United States
- Fiscal year end
- March
- Ticker symbol
- AMSC
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0000880807
- EIN
- 04-2959321
Board of directors
-
Arthur H. House · DirectorSince 2023
-
Barbara G. Littlefield · DirectorSince 2023
-
Daniel P. McGahn · Director · Chairman, President and CEOSince 2023
-
David R. Oliver Jr. · DirectorSince 2023
-
Laura A. Dambier · DirectorSince 2023
-
Margaret D. Klein · DirectorSince 2023
-
Terence Robert Donnelly · DirectorSince 2025
Chief executives
Daniel P. McGahn
· Chairman, President and CEO
Dates unknown
Director election results
Annual meeting of July 31, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
93.6%
-
94.9%
-
96.4%
-
96.6%
-
98.5%
-
98.5%
-
98.9%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $7,795,602
- 25 sales by 4 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 18, 2026 | Barbara G. Littlefield Director | Grant or award | +1,607 | — | — |
| Jun 11, 2026 | Laura A. Dambier Director | Open-market sale | −4,000 | $37.63 | $150,520 |
| Jun 11, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −5,026 | $37.33 | $187,621 |
| Jun 11, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −11,508 | $37.28 | $429,018 |
| Jun 11, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −1,743 | $37.85 | $65,973 |
| Jun 11, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −4,609 | $37.85 | $174,451 |
| Jun 8, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −3,286 | $41.50 | $136,369 |
| Jun 8, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −4,992 | $41.39 | $206,619 |
| Jun 8, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −1,549 | $42.35 | $65,600 |
| Jun 8, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −4,678 | $42.19 | $197,365 |
| Jun 3, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −3,200 | $48.31 | $154,592 |
| Jun 3, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −7,075 | $48.31 | $341,793 |
| Jun 3, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −2,638 | $49.28 | $130,001 |
| Jun 3, 2026 | Daniel P. McGahn Director, Officer (Chairman, President and CEO) | Open-market sale | −4,501 | $49.25 | $221,674 |
| Jun 3, 2026 | Kosiba John W JR Officer (SVP, CFO & Treasurer) | Open-market sale | −609 | $50.83 | $30,955 |
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