Data spanning the past 90 days through February 19, 2026 reveals that American Superconductor's three principal insider shareholders consist of Chairman And President And Ceo Daniel P Mcgahn (1.18Mn shares), Svp And Cfo & Treasurer John W Jr Kosiba (352.89K shares), Director David R Jr Oliver (60.71K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Daniel P Mcgahn | Chairman And President And Ceo | 1,183,134 | 06 Aug, 2025 |
| John W Jr Kosiba | Svp And Cfo & Treasurer | 352,890 | 06 Aug, 2025 |
| David R Jr Oliver | 60,707 | 04 Apr, 2025 | |
| Vikram S Budhraja | 59,299 | 13 Jun, 2022 | |
| Arthur H House | 48,663 | 08 Aug, 2025 | |
| Barbara G. Littlefield | 32,311 | 04 Apr, 2025 | |
| Laura A. Dambier | 15,876 | 04 Apr, 2025 | |
| Margaret D. Klein | 15,876 | 04 Apr, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 08 Aug, 2025 | Arthur H House | Common Stock | D | 9,703 | $50.92 | 48,663 | D | S |
| 06 Aug, 2025 | Arthur H House | Common Stock | A | 9,703 | $6.80 | 58,366 | D | M |
| 04 Aug, 2025 | Daniel P Mcgahn | Common Stock | D | 73,105 | $54.26 | 1,210,877 | D | S |
| 04 Aug, 2025 | Daniel P Mcgahn | Common Stock | D | 27,743 | $55.11 | 1,183,134 | D | S |
| 04 Aug, 2025 | John W Jr Kosiba | Common Stock | D | 34,260 | $54.34 | 368,630 | D | S |
| 04 Aug, 2025 | John W Jr Kosiba | Common Stock | D | 9,843 | $55.26 | 0 | I | S |
| 04 Aug, 2025 | John W Jr Kosiba | Common Stock | D | 15,740 | $55.13 | 352,890 | D | S |
| 11 Jun, 2025 | Daniel P Mcgahn | Common Stock | D | 12,315 | $28.56 | 1,284,482 | D | S |
| 11 Jun, 2025 | Daniel P Mcgahn | Common Stock | D | 500 | $29.09 | 1,283,982 | D | S |
| 11 Jun, 2025 | John W Jr Kosiba | Common Stock | D | 6,342 | $28.55 | 403,190 | D | S |
| 11 Jun, 2025 | John W Jr Kosiba | Common Stock | D | 300 | $29.08 | 402,890 | D | S |
| 06 Jun, 2025 | Daniel P Mcgahn | Common Stock | D | 7,689 | $31.82 | 1,296,797 | D | S |
| 06 Jun, 2025 | John W Jr Kosiba | Common Stock | D | 4,744 | $31.83 | 409,532 | D | S |
| 27 May, 2025 | Daniel P Mcgahn | Common Stock | D | 98,149 | $26.60 | 1,304,486 | D | S |
| 27 May, 2025 | Daniel P Mcgahn | Common Stock | D | 24,506 | $25.55 | 1,402,635 | D | S |
| 27 May, 2025 | John W Jr Kosiba | Common Stock | D | 10,097 | $25.55 | 454,179 | D | S |
| 27 May, 2025 | John W Jr Kosiba | Common Stock | D | 39,903 | $26.61 | 414,276 | D | S |
| 20 May, 2025 | Daniel P Mcgahn | Common Stock | D | 12,815 | $24.49 | 1,427,141 | D | S |
| 20 May, 2025 | John W Jr Kosiba | Common Stock | D | 11,860 | $24.50 | 464,276 | D | S |
| 15 May, 2025 | Daniel P Mcgahn | Common Stock | A | 240,000 | $0.00 | 1,439,956 | D | A |