CIK 0000880807 · Large accelerated filer
AMERICAN SUPERCONDUCTOR CORP /DE/
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- AMSC
- Exchange
- Nasdaq
- Industry
- Motors & Generators
- FY end
- Mar 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 042959321
- Phone
- 9788423000
- Business address
- SIXTY FOUR JACKSON ROAD, DEVENS, MA, 01434
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-18 | Littlefield Barbara G. Director | Grant or award | +1,607 | 37,034 | ||
| 2026-06-11 | Dambier Laura A. Director | Sale | −4,000 | $37.63 | $151K | 14,992 |
| 2026-06-11 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −5,026 | $37.33 | $188K | 336,120 |
| 2026-06-11 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −1,743 | $37.85 | $66K | 334,377 |
| 2026-06-11 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −11,508 | $37.28 | $429K | 1,136,538 |
| 2026-06-11 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −4,609 | $37.85 | $174K | 1,131,929 |
| 2026-06-08 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −3,286 | $41.50 | $136K | 342,695 |
| 2026-06-08 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −1,549 | $42.35 | $66K | 341,146 |
| 2026-06-08 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −4,992 | $41.39 | $207K | 1,152,724 |
| 2026-06-08 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −4,678 | $42.19 | $197K | 1,148,046 |
| 2026-06-03 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −3,200 | $48.31 | $155K | 349,228 |
| 2026-06-03 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −2,638 | $49.28 | $130K | 346,590 |
| 2026-06-03 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −609 | $50.83 | $31K | 345,981 |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −7,075 | $48.31 | $342K | 1,163,534 |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −4,501 | $49.25 | $222K | 1,159,033 |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −500 | $50.29 | $25K | 1,158,533 |
| 2026-06-03 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −817 | $50.99 | $42K | 1,157,716 |
| 2026-06-02 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −5,704 | $49.46 | $282K | 377,186 |
| 2026-06-02 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −12,122 | $50.62 | $614K | 365,064 |
| 2026-06-02 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −12,036 | $51.47 | $619K | 353,028 |
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