AMSC Insider Trading Activity and SEC Form 4 Filings
AMSC insider trading summary
Over the past 12 months, insiders at American Superconductor Corp (AMSC) reported 24 sales worth $7.8M by 3 insiders and no open-market purchases on SEC Form 4. Net insider selling was $7.8M.
Latest AMSC insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Jun 11, 2026 | John W Kosiba JR | SVP, CFO & Treasurer | Sell | $66K (1,743 @ $37.85) |
| Jun 11, 2026 | Daniel P McGahn | Chairman, President and CEO | Sell | $429K (11,508 @ $37.28) |
| Jun 11, 2026 | Daniel P McGahn | Chairman, President and CEO | Sell | $174K (4,609 @ $37.85) |
| Jun 11, 2026 | John W Kosiba JR | SVP, CFO & Treasurer | Sell | $188K (5,026 @ $37.33) |
| Jun 11, 2026 | Laura A. Dambier | Insider | Sell | $151K (4,000 @ $37.63) |
| Jun 8, 2026 | Daniel P McGahn | Chairman, President and CEO | Sell | $207K (4,992 @ $41.39) |
| Jun 8, 2026 | John W Kosiba JR | SVP, CFO & Treasurer | Sell | $136K (3,286 @ $41.50) |
| Jun 8, 2026 | John W Kosiba JR | SVP, CFO & Treasurer | Sell | $66K (1,549 @ $42.35) |
| Jun 8, 2026 | Daniel P McGahn | Chairman, President and CEO | Sell | $197K (4,678 @ $42.19) |
| Jun 3, 2026 | Daniel P McGahn | Chairman, President and CEO | Sell | $342K (7,075 @ $48.31) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.