Company · CIK 0000880807 · SIC 3621 — Motors & Generators · Nasdaq
AMERICAN SUPERCONDUCTOR CORP /DE/ · AMSC
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 AForm 4 → | Sep 21, 5:22 pm EDT | Barbara G. LittlefieldDirector | 1,607 | — | — | 37,034 | — | |
| Jun 11, 2026 SForm 4 → | Jun 12, 4:11 pm EDT | Laura A. DambierDirector | 4,000 | $37.63 | $150,520 | 14,992 | −21.1% | |
| Jun 11, 2026 SForm 4 → | Jun 11, 4:31 pm EDT | John W Kosiba Jr.SVP, CFO & Treasurer | 6,769 | $37.46 | $253,579 | 334,377 | −1.98% | 10b5-1 |
| Jun 11, 2026 SForm 4 → | Jun 11, 4:29 pm EDT | Daniel P McGahnChairman, President and CEO, Director | 16,117 | $37.45 | $603,503 | 1,131,929 | −1.40% | 10b5-1 |
| Jun 8, 2026 SForm 4 → | Jun 10, 4:55 pm EDT | John W Kosiba Jr.SVP, CFO & Treasurer | 4,835 | $41.77 | $201,967 | 341,146 | −1.40% | 10b5-1 |
| Jun 8, 2026 SForm 4 → | Jun 10, 4:53 pm EDT | Daniel P McGahnChairman, President and CEO, Director | 9,670 | $41.78 | $403,996 | 1,148,046 | −0.84% | 10b5-1 |
| Jun 2, 2026 SForm 4 → | Jun 3, 4:15 pm EDT | John W Kosiba Jr.SVP, CFO & Treasurer | 36,909 | $50.45 | $1,862,034 | 345,981 | −9.64% | 10b5-1 |
| Jun 2, 2026 SForm 4 → | Jun 3, 4:11 pm EDT | Daniel P McGahnChairman, President and CEO, Director | 85,418 | $50.49 | $4,313,154 | 1,157,716 | −6.87% | 10b5-1 |
| Jun 1, 2026 AForm 4 → | Jun 3, 4:15 pm EDT | John W Kosiba Jr.SVP, CFO & Treasurer | 30,000 | — | — | 382,890 | — | 10b5-1 |
| Jun 1, 2026 AForm 4 → | Jun 3, 4:11 pm EDT | Daniel P McGahnChairman, President and CEO, Director | 60,000 | — | — | 1,243,134 | — | 10b5-1 |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.