AMSC Insider Transactions
1,910 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
AMSC insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Dambier Laura A. | Director | 2026-06-11 | Sale | 4,000.0 | $37.63 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-11 | Sale | 1,743.0 | $37.85 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-11 | Sale | 5,026.0 | $37.33 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-11 | Sale | 4,609.0 | $37.85 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-11 | Sale | 11,508.0 | $37.28 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-08 | Sale | 1,549.0 | $42.35 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-08 | Sale | 3,286.0 | $41.5 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-08 | Sale | 4,678.0 | $42.19 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-08 | Sale | 4,992.0 | $41.39 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-03 | Sale | 609.0 | $50.83 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-03 | Sale | 2,638.0 | $49.28 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-03 | Sale | 3,200.0 | $48.31 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-03 | Sale | 817.0 | $50.99 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-03 | Sale | 500.0 | $50.29 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-03 | Sale | 4,501.0 | $49.25 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-03 | Sale | 7,075.0 | $48.31 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-02 | Sale | 600.0 | $52.19 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-02 | Sale | 12,036.0 | $51.47 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-02 | Sale | 12,122.0 | $50.62 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2026-06-02 | Sale | 5,704.0 | $49.46 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-02 | Sale | 2,305.0 | $52.14 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-02 | Sale | 28,558.0 | $51.46 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-02 | Sale | 27,900.0 | $50.63 |
| McGahn Daniel P | Chairman, President and CEO | 2026-06-02 | Sale | 13,762.0 | $49.45 |
| OLIVER DAVID R JR | Director | 2026-02-24 | Sale | 200.0 | $34.1 |
| House Arthur H | Director | 2025-08-08 | Sale | 9,703.0 | $50.92 |
| McGahn Daniel P | Chairman, President and CEO | 2025-08-04 | Sale | 27,743.0 | $55.11 |
| McGahn Daniel P | Chairman, President and CEO | 2025-08-04 | Sale | 73,105.0 | $54.26 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-08-04 | Sale | 9,843.0 | $55.26 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-08-04 | Sale | 15,740.0 | $55.13 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-08-04 | Sale | 34,260.0 | $54.34 |
| McGahn Daniel P | Chairman, President and CEO | 2025-06-11 | Sale | 500.0 | $29.09 |
| McGahn Daniel P | Chairman, President and CEO | 2025-06-11 | Sale | 12,315.0 | $28.56 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-06-11 | Sale | 300.0 | $29.08 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-06-11 | Sale | 6,342.0 | $28.55 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-06-06 | Sale | 4,744.0 | $31.83 |
| McGahn Daniel P | Chairman, President and CEO | 2025-06-06 | Sale | 7,689.0 | $31.82 |
| McGahn Daniel P | Chairman, President and CEO | 2025-05-27 | Sale | 98,149.0 | $26.6 |
| McGahn Daniel P | Chairman, President and CEO | 2025-05-27 | Sale | 24,506.0 | $25.55 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-05-27 | Sale | 39,903.0 | $26.61 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-05-27 | Sale | 10,097.0 | $25.55 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2025-05-20 | Sale | 11,860.0 | $24.5 |
| McGahn Daniel P | Chairman, President and CEO | 2025-05-20 | Sale | 12,815.0 | $24.49 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2024-11-04 | Sale | 50,000.0 | $28.28 |
| McGahn Daniel P | Chairman, President and CEO | 2024-06-11 | Sale | 37,165.0 | $21.69 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2024-06-11 | Sale | 32,000.0 | $21.68 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2024-05-21 | Sale | 2,170.0 | $15.3 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2024-05-21 | Sale | 26,830.0 | $14.78 |
| McGahn Daniel P | Chairman, President and CEO | 2024-05-21 | Sale | 1,620.0 | $15.3 |
| McGahn Daniel P | Chairman, President and CEO | 2024-05-21 | Sale | 18,939.0 | $14.78 |
| McGahn Daniel P | Chairman, President and CEO | 2023-06-22 | Sale | 36,902.0 | $5.95 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2023-06-22 | Sale | 29,878.0 | $5.95 |
| McGahn Daniel P | Chairman, President and CEO | 2023-06-21 | Sale | 73,802.0 | $6.14 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2023-06-21 | Sale | 50,132.0 | $6.15 |
| McGahn Daniel P | Chairman, President and CEO | 2022-12-16 | Purchase | 25,000.0 | $3.49 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2022-12-16 | Purchase | 15,000.0 | $3.5 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2022-12-12 | Purchase | 25,000.0 | $3.34 |
| Klein Margaret D. | Director | 2022-08-04 | Purchase | 500.0 | $5.57 |
| McGahn Daniel P | Chairman, President and CEO | 2022-06-10 | Sale | 32,587.0 | $5.98 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2022-06-10 | Sale | 8,473.0 | $5.97 |
| McGahn Daniel P | Chairman, President and CEO | 2022-05-31 | Sale | 21,725.0 | $5.45 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2022-05-31 | Sale | 13,325.0 | $5.45 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-12-10 | Sale | 22,754.0 | $11.31 |
| BUDHRAJA VIKRAM S | Director | 2021-12-08 | Sale | 3,000.0 | $11.98 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-11-02 | Sale | 259.0 | $19.31 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-11-02 | Sale | 6,983.0 | $18.77 |
| McGahn Daniel P | Chairman, President and CEO | 2021-11-01 | Sale | 7,241.0 | $18.96 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-11-01 | Sale | 3,766.0 | $18.95 |
| McGahn Daniel P | Chairman, President and CEO | 2021-07-01 | Sale | 14,664.0 | $17.66 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-07-01 | Sale | 6,409.0 | $17.66 |
| McGahn Daniel P | Chairman, President and CEO | 2021-05-24 | Sale | 8,690.0 | $14.19 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-05-24 | Sale | 5,794.0 | $14.18 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-01-21 | Sale | 10,661.0 | $28.03 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-01-21 | Sale | 8,333.0 | $27.66 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2021-01-21 | Sale | 6,100.0 | $26.56 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2020-11-25 | Sale | 25,000.0 | $19.28 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2019-12-19 | Sale | 10,287.0 | $7.63 |
| OLIVER DAVID R JR | Director | 2019-06-18 | Purchase | 200.0 | $8.33 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2018-12-28 | Sale | 12,374.0 | $10.31 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2018-12-07 | Sale | 6,250.0 | $10.58 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2018-02-09 | Purchase | 5,000.0 | $0.0 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2018-02-08 | Purchase | 5,000.0 | $4.62 |
| WOOD JOHN W JR | Director | 2017-05-10 | Purchase | 6,250.0 | $4.0 |
| McGahn Daniel P | President and CEO | 2017-05-10 | Purchase | 25,000.0 | $4.0 |
| Kosiba John W JR | SVP, CFO & Treasurer | 2017-05-10 | Purchase | 6,250.0 | $4.0 |
| BUDHRAJA VIKRAM S | Director | 2017-05-10 | Purchase | 12,500.0 | $4.0 |
| OLIVER DAVID R JR | Director | 2016-12-15 | Sale | 2,200.0 | $7.95 |
| SANDE JOHN VANDER | Director | 2016-11-28 | Sale | 500.0 | $8.05 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2016-06-20 | Sale | 10,900.0 | $8.42 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2016-06-16 | Sale | 2,325.0 | $8.18 |
| Maguire James F | EVP, Operations | 2016-05-18 | Sale | 29,938.0 | $10.15 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2016-04-06 | Sale | 6,250.0 | $8.26 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2016-04-05 | Sale | 6,295.0 | $8.15 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2015-07-31 | Sale | 929.0 | $5.07 |
| HENRY DAVID A | EVP, CFO & Treasurer | 2015-05-11 | Sale | 405.0 | $6.47 |
| DOUGLAS KEVIN | TenPercentOwnerOther | 2015-04-24 | Purchase | 66,000.0 | $6.0 |
| DOUGLAS FAMILY TRUST | TenPercentOwnerOther | 2015-04-24 | Purchase | 66,000.0 | $6.0 |
| JAMES & JEAN DOUGLAS IRREVOCABLE DESCENDANTS TRUST | TenPercentOwnerOther | 2015-04-24 | Purchase | 66,000.0 | $6.0 |
| DOUGLAS JAMES E III | TenPercentOwnerOther | 2015-04-24 | Purchase | 66,000.0 | $6.0 |
| Douglas Michelle | TenPercentOwnerOther | 2015-04-24 | Purchase | 66,000.0 | $6.0 |