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, Q3 2021
Institutional positions in American Superconductor Corp as of Sep 30, 2021. 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
- 101
- −4 vs. Q2 2021
- Shares held
- 16.7M
- +367.1K (+2.2%) vs. Q2 2021
- Total value
- $243.3M
- −$41.5M (−14.6%) vs. Q2 2021
- New holders
- 16
- 38 more added
- Sold out
- 20
- 25 more reduced
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| The PNC Financial Services Group, Inc. | 15 | $0 | 0.00% | +15 | New |
| Emerald Mutual Fund Advisers Trust | 0 | $0 | 0.00% | −272,010−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −79,153−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −63,921−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −43,779−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −24,825−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −24,391−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −22,174−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −21,740−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −17,400−100.0% | Sold out |
| Norges Bank | 0 | $0 | 0.00% | −14,400−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −12,637−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −12,478−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −11,524−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −3,284−100.0% | Sold out |
| Hoey Investments, Inc | 0 | $0 | 0.00% | −1,958−100.0% | Sold out |
| Concord Wealth Partners | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Berman Capital Advisors, LLC | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |