American Superconductor Corp /de/ (AMSC) insider trading
Every open-market stock purchase and sale by American Superconductor Corp /de/ executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $7.8M over the last 12 months (8 sales). No open-market buys.
- Last insider buy: Daniel P McGahn (CEO), $87.3K, 3 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $7.8M (8 sales). Last close $42.34 on Jun 4, 2026.
Recent AMSC insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Jun 11, 2026 | Daniel P McGahn (CEO) | Sold | $429K |
| Jun 11, 2026 | John W Kosiba JR (CFO) | Sold | $188K |
| Jun 11, 2026 | Daniel P McGahn (CEO) | Sold | $174K |
| Jun 11, 2026 | Laura A. Dambier (Insider) | Sold | $151K |
| Jun 11, 2026 | John W Kosiba JR (CFO) | Sold | $66K |
| Jun 8, 2026 | Daniel P McGahn (CEO) | Sold | $207K |
| Jun 8, 2026 | Daniel P McGahn (CEO) | Sold | $197K |
| Jun 8, 2026 | John W Kosiba JR (CFO) | Sold | $136K |
| Jun 8, 2026 | John W Kosiba JR (CFO) | Sold | $65.6K |
| Jun 3, 2026 | Daniel P McGahn (CEO) | Sold | $342K |
| Jun 3, 2026 | Daniel P McGahn (CEO) | Sold | $222K |
| Jun 3, 2026 | John W Kosiba JR (CFO) | Sold | $155K |
| Jun 3, 2026 | John W Kosiba JR (CFO) | Sold | $130K |
| Jun 3, 2026 | Daniel P McGahn (CEO) | Sold | $41.7K |
| Jun 3, 2026 | John W Kosiba JR (CFO) | Sold | $31K |
| Jun 3, 2026 | Daniel P McGahn (CEO) | Sold | $25.1K |
| Jun 2, 2026 | Daniel P McGahn (CEO) | Sold | $1.5M |
| Jun 2, 2026 | Daniel P McGahn (CEO) | Sold | $1.4M |
| Jun 2, 2026 | Daniel P McGahn (CEO) | Sold | $681K |
| Jun 2, 2026 | John W Kosiba JR (CFO) | Sold | $619K |
| Jun 2, 2026 | John W Kosiba JR (CFO) | Sold | $614K |
| Jun 2, 2026 | John W Kosiba JR (CFO) | Sold | $282K |
| Jun 2, 2026 | Daniel P McGahn (CEO) | Sold | $120K |
| Jun 2, 2026 | John W Kosiba JR (CFO) | Sold | $31.3K |
| Jun 1, 2026 | John W Kosiba JR (CFO) | Bought (not open market) | — |
Who's trading AMSC
- Laura A. Dambier, Insider: sold $151K (1 sale), last Jun 11, 2026
- John W Kosiba JR, CFO: sold $2.3M (11 sales), last Jun 11, 2026
- Daniel P McGahn, CEO: sold $5.3M (12 sales), last Jun 11, 2026
- Margaret D. Klein, Insider: other filings, last Apr 3, 2026
- David R Oliver Jr, Insider: sold $6.8K (1 sale), last Apr 3, 2026
- Barbara G. Littlefield, Insider: other filings, last Apr 3, 2026
- Terence Robert Donnelly, Insider: other filings, last Apr 3, 2026
- Arthur H House, Insider: other filings, last Apr 3, 2026
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