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Insider selling
John W Kosiba Jr sold $1.9M of American Superconductor Corp /De/ (AMSC) stock
John W Kosiba Jr, SVP, CFO & Treasurer of American Superconductor Corp /De/ (AMSC), sold 36,909 shares of AMSC stock worth $1.9M, per an SEC Form 4 filed Jun 3, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Jun 1, 2026, 2 days before it was made public.
AMSC has moved -41.4% since the trade date, from $51.15 to $29.98 (Oct 5, 2026 close).
- Traded
- Jun 1, 2026
- Disclosed
- Jun 3, 2026
- Filing delay
- 2 days
- Price since
- -41.4%
- Role
- SVP, CFO & Treasurer
- Source
- SEC Form 4
More AMSC insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.