AMERICAN SUPERCONDUCTOR CORP /DE/ AMSC
CIK 0000880807
Form 4 transactions dated Sep 1, 2023 to Sep 23, 2026, as reported to the SEC.
Insider purchases & sales
- Purchased
- $0.00
- Sold
- $26.51M
Sep 1, 2023 – Jun 12, 2026
Available records · partial months are marked ·
| Date | Insider | Activity | Trade value (USD) | % of prior holding | |
|---|---|---|---|---|---|
| 2026-06-11 | Dambier Laura A. Director | Sale | $150.52K 4,000 shares sold | 21.06% sold Direct holding | ▾ |
| 2026-06-11 | Kosiba John W JR SVP, CFO & Treasurer | Sale10b5-1 footnote | $253.58K 6,769 shares sold | 1.98% sold Direct holding | ▾ |
| 2026-06-11 | McGahn Daniel P Chairman, President and CEO · Director | Sale10b5-1 footnote | $603.50K 16,117 shares sold | 1.40% sold Direct holding | ▾ |
| 2026-06-08 | Kosiba John W JR SVP, CFO & Treasurer | Sale10b5-1 footnote | $201.97K 4,835 shares sold | 1.40% sold Direct holding | ▾ |
| 2026-06-08 | McGahn Daniel P Chairman, President and CEO · Director | Sale10b5-1 footnote | $404.00K 9,670 shares sold | 0.84% sold Direct holding | ▾ |
| 2026-06-03 | Kosiba John W JR SVP, CFO & Treasurer | Sale10b5-1 footnote | $315.55K 6,447 shares sold | 1.83% sold Direct holding | ▾ |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO · Director | Sale10b5-1 footnote | $630.26K 12,893 shares sold | 1.10% sold Direct holding | ▾ |
| 2026-06-02 | Kosiba John W JR SVP, CFO & Treasurer | Sale10b5-1 footnote | $1.55M 30,462 shares sold | 7.96% sold Direct holding | ▾ |
| 2026-06-02 | McGahn Daniel P Chairman, President and CEO · Director | Sale10b5-1 footnote | $3.68M 72,525 shares sold | 5.83% sold Direct holding | ▾ |
| 2026-02-24 | OLIVER DAVID R JR Director | Sale | $6.82K 200 shares sold | 0.33% sold Direct holding | ▾ |
Showing 10 / 10 record groups in 2026. The complete set is available through the API.
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