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 2021
Institutional positions in American Superconductor Corp as of Jun 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
- 105
- +1 vs. Q1 2021
- Shares held
- 16.4M
- +54.9K (+0.3%) vs. Q1 2021
- Total value
- $284.8M
- −$26.4M (−8.5%) vs. Q1 2021
- New holders
- 21
- 31 more added
- Sold out
- 20
- 36 more reduced
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 1,192,274 | $20.7M | 0.00% | +1,288+0.1% | Added |
| Baillie Gifford & Co | 1,279,400 | $22.2M | 0.01% | +117,700+10.1% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,299,894 | $22.6M | 0.08% | +567,298+77.4% | Added |
| BlackRock Inc. | 1,856,405 | $32.3M | 0.00% | −164,192−8.1% | Reduced |
| Invesco Ltd. | 2,304,790 | $40.1M | 0.01% | +544,501+30.9% | Added |
| Telemark Asset Management, LLC | 0 | $0 | 0.00% | −460,000−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −222,861−100.0% | Sold out |
| Ergoteles LLC | 0 | $0 | 0.00% | −113,260−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −45,700−100.0% | Sold out |
| Old Mission Capital LLC | 0 | $0 | 0.00% | −23,671−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −23,672−100.0% | Sold out |
| Ameriprise Financial Inc | 0 | $0 | 0.00% | −20,949−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −20,728−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −17,979−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −17,737−100.0% | Sold out |
| Emerald Advisers, LLC | 0 | $0 | 0.00% | −15,084−100.0% | Sold out |
| Hussman Strategic Advisors, Inc. | 0 | $0 | 0.00% | −14,400−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −13,586−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −12,679−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −11,536−100.0% | Sold out |
| Pinz Capital Management, LP | 0 | $0 | 0.00% | −7,200−100.0% | Sold out |
| Maven Securities LTD | 0 | $0 | 0.00% | −5,500−100.0% | Sold out |
| Mesirow Financial Investment Management, Inc. | 0 | $0 | 0.00% | −961−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −335−100.0% | Sold out |
| Spire Wealth Management | 0 | $0 | 0.00% | −64−100.0% | Sold out |