AMERICAN SUPERCONDUCTOR CORP /DE/ insider transactions
Published Form 4 ownership transactions for AMSC.
| Date | Insider | Code | Shares | Price | Filing |
|---|---|---|---|---|---|
| 2026-06-11 | Dambier Laura A. | S / D | 4,000 | 37.63 | 4 |
| 2026-06-11 | Kosiba John W JR | S / D | 5,026 | 37.327 | 4 |
| 2026-06-11 | Kosiba John W JR | S / D | 1,743 | 37.852 | 4 |
| 2026-06-11 | McGahn Daniel P | S / D | 11,508 | 37.283 | 4 |
| 2026-06-11 | McGahn Daniel P | S / D | 4,609 | 37.851 | 4 |
| 2026-06-08 | Kosiba John W JR | S / D | 1,549 | 42.347 | 4 |
| 2026-06-08 | McGahn Daniel P | S / D | 4,678 | 42.194 | 4 |
| 2026-06-08 | Kosiba John W JR | S / D | 3,286 | 41.501 | 4 |
| 2026-06-08 | McGahn Daniel P | S / D | 4,992 | 41.389 | 4 |
| 2026-06-03 | Kosiba John W JR | S / D | 3,200 | 48.307 | 4 |
| 2026-06-03 | Kosiba John W JR | S / D | 2,638 | 49.285 | 4 |
| 2026-06-03 | Kosiba John W JR | S / D | 609 | 50.826 | 4 |
| 2026-06-03 | McGahn Daniel P | S / D | 7,075 | 48.307 | 4 |
| 2026-06-03 | McGahn Daniel P | S / D | 4,501 | 49.254 | 4 |
| 2026-06-03 | McGahn Daniel P | S / D | 500 | 50.288 | 4 |
| 2026-06-03 | McGahn Daniel P | S / D | 817 | 50.99 | 4 |
| 2026-06-02 | McGahn Daniel P | S / D | 13,762 | 49.451 | 4 |
| 2026-06-02 | Kosiba John W JR | S / D | 12,036 | 51.466 | 4 |
| 2026-06-02 | McGahn Daniel P | S / D | 27,900 | 50.631 | 4 |
| 2026-06-02 | McGahn Daniel P | S / D | 28,558 | 51.459 | 4 |
| 2026-06-02 | McGahn Daniel P | S / D | 2,305 | 52.136 | 4 |
| 2026-06-02 | Kosiba John W JR | S / D | 12,122 | 50.619 | 4 |
| 2026-06-02 | Kosiba John W JR | S / D | 600 | 52.192 | 4 |
| 2026-06-02 | Kosiba John W JR | S / D | 5,704 | 49.461 | 4 |
| 2026-06-01 | Kosiba John W JR | A / A | 30,000 | 0 | 4 |
| 2026-06-01 | McGahn Daniel P | A / A | 60,000 | 0 | 4 |
| 2026-04-03 | Littlefield Barbara G. | A / A | 3,116 | 0 | 4 |
| 2026-04-03 | OLIVER DAVID R JR | A / A | 3,116 | 0 | 4 |
| 2026-04-03 | Donnelly Terence Robert | A / A | 2,665 | 0 | 4 |
| 2026-04-03 | House Arthur H | A / A | 3,116 | 0 | 4 |
| 2026-04-03 | Klein Margaret D. | A / A | 3,116 | 0 | 4 |
| 2026-04-03 | Dambier Laura A. | A / A | 3,116 | 0 | 4 |
| 2026-02-24 | OLIVER DAVID R JR | S / D | 200 | 34.1 | 4 |
| 2025-08-08 | House Arthur H | S / D | 9,703 | 50.921 | 4 |
| 2025-08-06 | House Arthur H | M / A | 9,703 | 6.8 | 4 |
| 2025-08-04 | Kosiba John W JR | S / D | 9,843 | 55.26 | 4 |
| 2025-08-04 | Kosiba John W JR | S / D | 15,740 | 55.129 | 4 |
| 2025-08-04 | Kosiba John W JR | S / D | 34,260 | 54.341 | 4 |
| 2025-08-04 | McGahn Daniel P | S / D | 27,743 | 55.107 | 4 |
| 2025-08-04 | McGahn Daniel P | S / D | 73,105 | 54.26 | 4 |
| 2022-08-04 | Klein Margaret D. | P / A | 500 | 5.565 | 4 |
| 2019-06-18 | OLIVER DAVID R JR | P / A | 200 | 8.33 | 4 |