American Superconductor Corp
AMSC- Exchange
- Nasdaq
- Industry
- Motors & Generators
- SEC CIK
- 0000880807
No open-market purchases or sales by American Superconductor Corp insiders were filed in the last 90 days; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.47B in total; no superinvestor holds it.
13F holders, Q2 2022
Institutional positions in American Superconductor Corp as of Jun 30, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 93
- −11 vs. Q1 2022
- Shares held
- 13.2M
- −2.44M (−15.6%) vs. Q1 2022
- Total value
- $68.6M
- −$50.5M (−42.4%) vs. Q1 2022
- New holders
- 20
- 21 more added
- Sold out
- 31
- 28 more reduced
3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMSC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 277 | $1.47B |
| Q1 2026 | 245 | $1.12B |
| Q4 2025 | 240 | $953.2M |
| Q3 2025 | 273 | $1.94B |
| Q2 2025 | 232 | $1.20B |
| Q1 2025 | 189 | $499.8M |
| Q4 2024 | 191 | $678.1M |
| Q3 2024 | 171 | $642.6M |
| Q2 2024 | 155 | $636.1M |
| Q1 2024 | 128 | $312.0M |
| Q4 2023 | 99 | $178.8M |
| Q3 2023 | 72 | $100.0M |
| Q2 2023 | 77 | $81.9M |
| Q1 2023 | 74 | $64.6M |
| Q4 2022 | 77 | $48.4M |
| Q3 2022 | 82 | $61.0M |
| Q2 2022 | 93 | $68.6M |
| Q1 2022 | 107 | $119.5M |
| Q4 2021 | 107 | $178.2M |
| Q3 2021 | 101 | $243.3M |
| Q2 2021 | 105 | $284.8M |
| Q1 2021 | 104 | $311.2M |
Institutions, Q2 2022
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rhumbline Advisers | 0 | $0 | 0.00% | −35,760−100.0% | Sold out |
| Ardsley Advisory Partners LP | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −22,100−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −21,382−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −16,405−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −15,943−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −13,711−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −13,093−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −11,993−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −11,970−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −11,777−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −11,835−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −3,339−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −2,276−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −2,255−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −1,781−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −1,686−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −951−100.0% | Sold out |
| Koshinski Asset Management, Inc. | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Arcadia Investment Management Corp | 0 | $0 | 0.00% | −470−100.0% | Sold out |
| McCarthy Asset Management, Inc. | 0 | $0 | 0.00% | −375−100.0% | Sold out |
| Raffa Wealth Management, LLC | 0 | $0 | 0.00% | −124−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Tatro Capital, LLC | – | – | – | – | Not filed |
| Parametric Portfolio Associates LLC | – | – | – | – | Not filed |
| Amalgamated Financial Corp. | – | – | – | – | Not filed |