As of March 23, 2026, American Superconductor's top three insider holders are Daniel P Mcgahn (Chairman, President And Ceo, 1.18Mn shares), John W Jr Kosiba (Svp, Cfo Treasurer, 352.89K shares), David R Jr Oliver (Director, 60.71K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Daniel P Mcgahn | Chairman, President And Ceo | 1,183,134 | 0 | 06 Aug, 2025 |
| John W Jr Kosiba | Svp, Cfo Treasurer | 352,890 | 0 | 06 Aug, 2025 |
| David R Jr Oliver | 60,707 | 0 | 26 Feb, 2026 | |
| Vikram S Budhraja | 59,299 | 0 | 13 Jun, 2022 | |
| Arthur H House | 48,663 | 0 | 08 Aug, 2025 | |
| Barbara G. Littlefield | 32,311 | 0 | 04 Apr, 2025 | |
| Laura A. Dambier | 15,876 | 0 | 04 Apr, 2025 | |
| Margaret D. Klein | 15,876 | 0 | 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 |
|---|---|---|---|---|---|---|---|---|
| 24 Feb, 2026 | David R Jr Oliver | Common Stock | D | 200 | $34.10 | 60,707 | D | S |
| 06 Aug, 2025 | Arthur H House | Common Stock | A | 9,703 | $6.80 | 58,366 | D | M |
| 08 Aug, 2025 | Arthur H House | Common Stock | D | 9,703 | $50.92 | 48,663 | D | S |
| 06 Aug, 2025 | Arthur H House | Stock Options (Right to Buy) | D | 9,703 | $0.00 | 0 | D | M |
| 04 Aug, 2025 | John W Jr Kosiba | Common Stock | D | 34,260 | $54.34 | 368,630 | D | S |
| 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 | 15,740 | $55.13 | 352,890 | D | S |
| 04 Aug, 2025 | John W Jr Kosiba | Common Stock | D | 9,843 | $55.26 | 0 | I | S |
| 11 Jun, 2025 | John W Jr Kosiba | Common Stock | D | 6,342 | $28.55 | 403,190 | D | S |
| 11 Jun, 2025 | Daniel P Mcgahn | Common Stock | D | 12,315 | $28.56 | 1,284,482 | D | S |
| 11 Jun, 2025 | John W Jr Kosiba | Common Stock | D | 300 | $29.08 | 402,890 | D | S |
| 11 Jun, 2025 | Daniel P Mcgahn | Common Stock | D | 500 | $29.09 | 1,283,982 | 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 | Terence Robert Donnelly | Stock Options (Right to Buy) | A | 2,112 | $0.00 | 2,112 | D | A |
| 27 May, 2025 | John W Jr Kosiba | Common Stock | D | 10,097 | $25.55 | 454,179 | D | S |
| 27 May, 2025 | Daniel P Mcgahn | Common Stock | D | 24,506 | $25.55 | 1,402,635 | D | S |
| 27 May, 2025 | Daniel P Mcgahn | Common Stock | D | 98,149 | $26.60 | 1,304,486 | D | S |
| 27 May, 2025 | John W Jr Kosiba | Common Stock | D | 39,903 | $26.61 | 414,276 | D | S |