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, Q1 2025
Institutional positions in American Superconductor Corp as of Mar 31, 2025. 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
- 189
- 0 vs. Q4 2024
- Shares held
- 27.5M
- +907.7K (+3.4%) vs. Q4 2024
- Total value
- $499.8M
- −$156.6M (−23.9%) vs. Q4 2024
- New holders
- 39
- 62 more added
- Sold out
- 39
- 63 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Q Fund Management (Hong Kong) Ltd | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −18,967−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −16,073−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −13,008−100.0% | Sold out |
| Itau Unibanco Holding S.A. | 0 | $0 | 0.00% | −12,447−100.0% | Sold out |
| Atria Wealth Solutions, Inc. | 0 | $0 | 0.00% | −12,475−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −12,324−100.0% | Sold out |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −11,855−100.0% | Sold out |
| Private Advisor Group, LLC | 0 | $0 | 0.00% | −10,737−100.0% | Sold out |
| CIBC World Markets Inc. | 0 | $0 | 0.00% | −10,069−100.0% | Sold out |
| Scotia Capital Inc. | 0 | $0 | 0.00% | −9,395−100.0% | Sold out |
| Tradewinds, LLC. | 0 | $0 | 0.00% | −7,131−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −8,207−100.0% | Sold out |
| Stance Capital LLC | 0 | $0 | 0.00% | −2,879−100.0% | Sold out |
| Gen-Wealth Partners Inc | 0 | $0 | 0.00% | −2,355−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −758−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −624−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −181−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −160−100.0% | Sold out |
| True Wealth Design, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −102−100.0% | Sold out |
| Harbour Investments, Inc. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Hoey Investments, Inc | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −85−100.0% | Sold out |
| Ronald Blue Trust, Inc. | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −49−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −30−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |