American Superconductor Corp
AMSCFigures shown here come from public SEC filings. Dates beside each section show the available history.
How American Superconductor Corp Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Source: American Superconductor Corp — 10-K filed May 21, 2025
Financial Summary
Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 19 annual periods. The latest annual period ends Mar 31, 2026. The latest insider filing shown is dated Jun 12, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 2026-03-31 | 4,836 | Not shown | SEC filing |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 2025-12-31 | 4,836 | Not shown | SEC filing |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 2025-09-30 | 4,836 | Not shown | SEC filing |
| AlphaMark Advisors, LLC | 2024-09-30 | 1,000 | Not shown | SEC filing |
- Each value is checked against American Superconductor Corp's share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at American Superconductor Corp's share price.
- Value not shown for 3 rows: no share price from within three months of their report dates is on file, so they could not be checked.
Filer report history
Two reports per filer, as filed. No change is calculated, because the data on file cannot confirm that both reports describe the same security.
- PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO: 4,836 shares reported 2025-12-31; 4,836 shares reported 2026-03-31.
- PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO: 4,836 shares reported 2025-09-30; 4,836 shares reported 2025-12-31.
1 filer has only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among American Superconductor Corp's recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2025-08-04 · McGahn Daniel P: Larger than 85 of the 88 other insider sales of Common Stock on file. SEC filing
- 2025-05-27 · Kosiba John W JR: Larger than 82 of the 88 other insider sales of Common Stock on file. SEC filing
- 2025-05-27 · McGahn Daniel P: Larger than 87 of the 88 other insider sales of Common Stock on file. SEC filing
- 2024-11-04 · Kosiba John W JR: Larger than 83 of the 88 other insider sales of Common Stock on file. SEC filing
- 2024-06-11 · McGahn Daniel P: Larger than 81 of the 88 other insider sales of Common Stock on file. SEC filing
- 2023-06-22 · McGahn Daniel P: Larger than 80 of the 88 other insider sales of Common Stock on file. SEC filing
- 2023-06-21 · Kosiba John W JR: Larger than 84 of the 88 other insider sales of Common Stock on file. SEC filing
- 2023-06-21 · McGahn Daniel P: Larger than 86 of the 88 other insider sales of Common Stock on file. SEC filing
- 2014-08-27 · Maguire James F: Larger than all 88 other insider sales of Common Stock on file. SEC filing
Independent insiders buying near the same time
- 2022-12-12–2022-12-16: 3 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing )
- 2017-05-10–2017-05-10: 4 event(s) across 4 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-06-11 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | S — Open market or private sale | −5,026 | 37.33 | SEC filing |
| 2026-06-11 | Dambier Laura A. · Director | Common Stock | S — Open market or private sale | −4,000 | 37.63 | SEC filing |
| 2026-06-11 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | S — Open market or private sale | −1,743 | 37.85 | SEC filing |
| 2026-06-11 | McGahn Daniel P · Chairman, President and CEO | Common Stock | S — Open market or private sale | −4,609 | 37.85 | SEC filing |
| 2026-06-11 | McGahn Daniel P · Chairman, President and CEO | Common Stock | S — Open market or private sale | −11,508 | 37.28 | SEC filing |
| 2026-06-08 | McGahn Daniel P · Chairman, President and CEO | Common Stock | S — Open market or private sale | −4,992 | 41.39 | SEC filing |
| 2026-06-08 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | S — Open market or private sale | −3,286 | 41.50 | SEC filing |
| 2026-06-08 | McGahn Daniel P · Chairman, President and CEO | Common Stock | S — Open market or private sale | −4,678 | 42.19 | SEC filing |
Showing 8 of 20 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-01 | McGahn Daniel P · Chairman, President and CEO | Common Stock | A — Grant, award, or other acquisition | +60,000 | SEC filing |
| 2026-06-01 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | A — Grant, award, or other acquisition | +30,000 | SEC filing |
| 2026-04-03 | Dambier Laura A. · Director | Common Stock | A — Grant, award, or other acquisition | +3,116 | SEC filing |
| 2026-04-03 | House Arthur H · Director | Common Stock | A — Grant, award, or other acquisition | +3,116 | SEC filing |
| 2026-04-03 | OLIVER DAVID R JR · Director | Common Stock | A — Grant, award, or other acquisition | +3,116 | SEC filing |
| 2026-04-03 | Klein Margaret D. · Director | Common Stock | A — Grant, award, or other acquisition | +3,116 | SEC filing |
| 2026-04-03 | Littlefield Barbara G. · Director | Common Stock | A — Grant, award, or other acquisition | +3,116 | SEC filing |
| 2026-04-03 | Donnelly Terence Robert · Director | Common Stock | A — Grant, award, or other acquisition | +2,665 | SEC filing |
Showing 8 of 22 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2023-06-15 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | D — Disposition to the issuer | −1,613 | SEC filing |
| 2023-06-15 | McGahn Daniel P · Chairman, President and CEO | Common Stock | D — Disposition to the issuer | −4,839 | SEC filing |
| 2020-06-02 | McGahn Daniel P · Chairman, President and CEO | Common Stock | D — Disposition to the issuer | −75,000 | SEC filing |
| 2020-06-02 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | D — Disposition to the issuer | −24,000 | SEC filing |
| 2019-11-05 | McGahn Daniel P · Chairman, President and CEO | Common Stock | D — Disposition to the issuer | −16,875 | SEC filing |
| 2019-11-05 | Kosiba John W JR · SVP, CFO & Treasurer | Common Stock | D — Disposition to the issuer | −7,375 | SEC filing |
| 2015-05-28 | McGahn Daniel P · President and CEO | Common Stock | D — Disposition to the issuer | −2,500 | SEC filing |
Showing 7 of 7 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.