CIK 0000880807 · Large accelerated filer
AMERICAN SUPERCONDUCTOR CORP /DE/
Sign in to watch- Ticker
- 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 |
|---|---|---|---|---|---|---|
| 2026-06-02 | Kosiba John W JR SVP, CFO & Treasurer | Sale 10b5-1 | −600 | $52.19 | $31K | 352,428 |
| 2026-06-02 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −13,762 | $49.45 | $681K | 1,229,372 |
| 2026-06-02 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −27,900 | $50.63 | $1.4M | 1,201,472 |
| 2026-06-02 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −28,558 | $51.46 | $1.5M | 1,172,914 |
| 2026-06-02 | McGahn Daniel P Chairman, President and CEO | Sale 10b5-1 | −2,305 | $52.14 | $120K | 1,170,609 |
| 2026-06-01 | Kosiba John W JR SVP, CFO & Treasurer | Grant or award 10b5-1 | +30,000 | 382,890 | ||
| 2026-06-01 | McGahn Daniel P Chairman, President and CEO | Grant or award 10b5-1 | +60,000 | 1,243,134 | ||
| 2026-04-03 | Donnelly Terence Robert Director | Grant or award | +2,665 | 2,665 | ||
| 2026-04-03 | OLIVER DAVID R JR Director | Grant or award | +3,116 | 63,823 | ||
| 2026-04-03 | Littlefield Barbara G. Director | Grant or award | +3,116 | 35,427 | ||
| 2026-04-03 | Klein Margaret D. Director | Grant or award | +3,116 | 19,492 | ||
| 2026-04-03 | House Arthur H Director | Grant or award | +3,116 | 51,779 | ||
| 2026-04-03 | Dambier Laura A. Director | Grant or award | +3,116 | 18,992 | ||
| 2026-02-24 | OLIVER DAVID R JR Director | Sale | −200 | $34.10 | $7K | 60,707 |
| 2025-08-08 | House Arthur H Director | Sale | −9,703 | $50.92 | $494K | 48,663 |
| 2025-08-06 | House Arthur H Director | Option exercise | +9,703 | $6.80 | $66K | 58,366 |
| 2025-08-06 | House Arthur H Director | Option exercise · Stock Options (Right to Buy) | −9,703 | 0 | ||
| 2025-08-04 | McGahn Daniel P Chairman, President and CEO | Sale | −73,105 | $54.26 | $4.0M | 1,210,877 |
| 2025-08-04 | McGahn Daniel P Chairman, President and CEO | Sale | −27,743 | $55.11 | $1.5M | 1,183,134 |
| 2025-08-04 | Kosiba John W JR SVP, CFO & Treasurer | Sale | −34,260 | $54.34 | $1.9M | 368,630 |
Page 2 of 13 · 256 trades