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, Q4 2024
Institutional positions in American Superconductor Corp as of Dec 31, 2024. 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
- 191
- +24 vs. Q3 2024
- Shares held
- 27.5M
- +671.1K (+2.5%) vs. Q3 2024
- Total value
- $678.1M
- +$44.4M (+7.0%) vs. Q3 2024
- New holders
- 55
- 59 more added
- Sold out
- 31
- 51 more reduced
4 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | $953.6M |
| Q3 2025 | 273 | $1.95B |
| Q2 2025 | 232 | $1.20B |
| Q1 2025 | 189 | $500.1M |
| Q4 2024 | 191 | $678.1M |
| Q3 2024 | 171 | $643.8M |
| Q2 2024 | 155 | $638.3M |
| Q1 2024 | 128 | $326.7M |
| Q4 2023 | 99 | $180.6M |
| 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 | $178.5M |
| Q3 2021 | 101 | $243.3M |
| Q2 2021 | 105 | $286.0M |
| Q1 2021 | 104 | $312.5M |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,427,893 | $84.4M | 0.00% | +707,110+26.0% | Added |
| Vanguard Group Inc | 2,222,935 | $54.8M | 0.00% | −203,343−8.4% | Reduced |
| Baillie Gifford & Co | 1,649,790 | $40.6M | 0.03% | −456,605−21.7% | Reduced |
| AWM Investment Company, Inc. | 1,513,478 | $37.3M | 4.54% | −205,589−12.0% | Reduced |
| Hood River Capital Management LLC | 1,236,146 | $30.4M | 0.45% | −195,794−13.7% | Reduced |
| Macquarie Group Ltd | 1,040,179 | $25.6M | 0.03% | +44,613+4.5% | Added |
| Driehaus Capital Management LLC | 942,698 | $23.2M | 0.19% | +143,936+18.0% | Added |
| State Street Corp | 909,295 | $22.4M | 0.00% | +3,045+0.3% | Added |
| Nuveen Asset Management, LLC | 878,624 | $21.6M | 0.01% | −151,686−14.7% | Reduced |
| Geode Capital Management, LLC | 856,455 | $21.1M | 0.00% | +9,043+1.1% | Added |
| Royce & Associates LP | 838,932 | $20.7M | 0.19% | −116,242−12.2% | Reduced |
| Oberweis Asset Management Inc | 664,400 | $16.4M | 0.77% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 654,299 | $16.1M | 0.00% | +46,354+7.6% | Added |
| Telemark Asset Management, LLC | 600,000 | $14.8M | 1.47% | 00.0% | Unchanged |
| Wellington Management Group LLP | 461,230 | $11.4M | 0.00% | +461,230 | New |
| Morgan Stanley | 438,171 | $10.8M | 0.00% | +60,766+16.1% | Added |
| Essex Investment Management Co LLC | 429,876 | $10.6M | 1.90% | −34,630−7.5% | Reduced |
| UBS Group AG | 425,877 | $10.5M | 0.00% | +365,050+600.1% | Added |
| Raymond James Financial Inc | 413,646 | $10.2M | 0.00% | +413,646 | New |
| Allspring Global Investments Holdings, LLC | 377,375 | $9.29M | 0.01% | −56,770−13.1% | Reduced |
| Legal & General Group Plc | 347,549 | $8.56M | 0.00% | +10,342+3.1% | Added |
| First Trust Advisors LP | 335,053 | $8.25M | 0.01% | +43,808+15.0% | Added |
| Northern Trust Corp | 327,805 | $8.07M | 0.00% | +26,819+8.9% | Added |
| Charles Schwab Investment Management Inc | 317,869 | $7.83M | 0.00% | +13,341+4.4% | Added |
| Goldman Sachs Group Inc | 311,718 | $7.68M | 0.00% | +70,592+29.3% | Added |
| Arrowstreet Capital, Limited Partnership | 296,792 | $7.31M | 0.01% | +296,792 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 277,250 | $6.83M | 0.03% | −149,011−35.0% | Reduced |
| Citadel Advisors LLC | 259,839 | $6.40M | 0.01% | −36,218−12.2% | Reduced |
| AQR Capital Management LLC | 256,230 | $6.31M | 0.01% | +151,015+143.5% | Added |
| D. E. Shaw & Co., Inc. | 252,209 | $6.21M | 0.01% | −1,204−0.5% | Reduced |
| Balyasny Asset Management LLC | 238,992 | $5.89M | 0.01% | +238,992 | New |
| Invesco Ltd. | 197,783 | $4.87M | 0.00% | −340,616−63.3% | Reduced |
| Qube Research & Technologies Ltd | 183,974 | $4.53M | 0.01% | +53,843+41.4% | Added |
| Hillsdale Investment Management Inc. | 183,800 | $4.53M | 0.23% | +1,150+0.6% | Added |
| ArrowMark Colorado Holdings LLC | 146,432 | $3.61M | 0.05% | −59,000−28.7% | Reduced |
| Palisades Investment Partners, LLC | 142,415 | $3.51M | 1.48% | +12,317+9.5% | Added |
| Andrew Hill Investment Advisors, Inc. | 114,971 | $2.83M | 2.10% | −72,569−38.7% | Reduced |
| Bank of New York Mellon Corp | 108,609 | $2.68M | 0.00% | +8,731+8.7% | Added |
| GMT Capital Corp | 108,066 | $2.66M | 0.13% | 00.0% | Unchanged |
| KBC Group NV | 101,175 | $2.49M | 0.01% | +101,175 | New |
| Ardsley Advisory Partners LP | 100,000 | $2.46M | 0.48% | 00.0% | Unchanged |
| KP Management LLC | 95,000 | $2.34M | 0.82% | +95,000 | New |
| Rice Hall James & Associates, LLC | 83,130 | $2.05M | 0.11% | −64,062−43.5% | Reduced |
| Swiss National Bank | 75,300 | $1.85M | 0.00% | +3,100+4.3% | Added |
| Panagora Asset Management Inc | 73,613 | $1.81M | 0.01% | +30,212+69.6% | Added |
| UBS Asset Management Americas Inc | 73,274 | $1.80M | 0.00% | +12,942+21.5% | Added |
| Ameriprise Financial Inc | 69,281 | $1.71M | 0.00% | −9,219−11.7% | Reduced |
| Baird Financial Group, Inc. | 67,945 | $1.67M | 0.00% | +67,945 | New |
| New York State Common Retirement Fund | 66,536 | $1.64M | 0.00% | +2,436+3.8% | Added |
| Barclays PLC | 65,903 | $1.62M | 0.00% | +7,575+13.0% | Added |
| Hussman Strategic Advisors, Inc. | 63,000 | $1.55M | 0.46% | −42,000−40.0% | Reduced |
| Algert Global LLC | 62,558 | $1.54M | 0.04% | +62,558 | New |
| Campbell Newman Asset Management Inc | 60,205 | $1.48M | 0.12% | +60,205 | New |
| LPL Financial LLC | 58,534 | $1.44M | 0.00% | +44,985+332.0% | Added |
| Amundi | 52,911 | $1.44M | 0.00% | +52,911 | New |
| Alps Advisors Inc | 58,304 | $1.44M | 0.01% | −20,275−25.8% | Reduced |
| Legato Capital Management LLC | 54,276 | $1.34M | 0.17% | −57,676−51.5% | Reduced |
| Options Solutions, LLC | 54,239 | $1.34M | 0.60% | +4,415+8.9% | Added |
| SEI Investments Co | 52,106 | $1.28M | 0.00% | −10,891−17.3% | Reduced |
| Merit Financial Group, LLC | 51,942 | $1.28M | 0.02% | −1,526−2.9% | Reduced |
| Rhumbline Advisers | 51,119 | $1.26M | 0.00% | +606+1.2% | Added |
| JPMorgan Chase & Co | 50,012 | $1.23M | 0.00% | +3,295+7.1% | Added |
| Capital Fund Management S.A. | 48,622 | $1.20M | 0.01% | −29,023−37.4% | Reduced |
| Susquehanna International Group, LLP | 47,501 | $1.17M | 0.00% | +47,501 | New |
| Nkcfo LLC | 47,000 | $1.16M | 0.51% | +47,000 | New |
| Caption Management, LLC | 45,900 | $1.13M | 0.05% | +45,900 | New |
| Dorsey & Whitney Trust CO LLC | 45,300 | $1.12M | 0.06% | +45,300 | New |
| Range Financial Group LLC | 42,018 | $1.03M | 0.48% | +42,018 | New |
| HRT Financial LP | 39,274 | $967.0K | 0.00% | +39,274 | New |
| Los Angeles Capital Management LLC | 38,372 | $945.1K | 0.00% | +17,803+86.6% | Added |
| Alliancebernstein L.P. | 35,720 | $879.8K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 35,559 | $875.8K | 0.00% | +709+2.0% | Added |
| Gsa Capital Partners LLP | 34,661 | $854.0K | 0.06% | +34,661 | New |
| Wells Fargo & Company | 34,267 | $844.0K | 0.00% | +13,899+68.2% | Added |
| Cambridge Investment Research Advisors, Inc. | 33,464 | $824.0K | 0.00% | +2,511+8.1% | Added |
| Deutsche Bank AG | 32,913 | $810.6K | 0.00% | +10,029+43.8% | Added |
| Franklin Resources Inc | 32,815 | $808.2K | 0.00% | 00.0% | Unchanged |
| Main Management ETF Advisors, LLC | 31,328 | $772.0K | 0.03% | −2,816−8.2% | Reduced |
| Citigroup Inc | 30,919 | $761.5K | 0.00% | +5,449+21.4% | Added |
| Jane Street Group, LLC | 29,342 | $722.7K | 0.00% | +10,655+57.0% | Added |
| Emerald Advisers, LLC | 28,119 | $692.6K | 0.03% | +28,119 | New |
| GWM Advisors LLC | 26,874 | $661.9K | 0.00% | +23,645+732.3% | Added |
| Bridgeway Capital Management, LLC | 26,791 | $659.9K | 0.01% | −72,909−73.1% | Reduced |
| Millennium Management LLC | 23,065 | $568.1K | 0.00% | −239,134−91.2% | Reduced |
| Ieq Capital, LLC | 22,835 | $562.4K | 0.01% | +22,835 | New |
| Price T Rowe Associates Inc | 22,600 | $557.0K | 0.00% | +2,121+10.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 22,306 | $549.4K | 0.00% | +3,506+18.6% | Added |
| MetLife Investment Management | 21,201 | $522.2K | 0.00% | +1,415+7.2% | Added |
| Simplex Trading, LLC | 21,212 | $522.0K | 0.01% | −2,983−12.3% | Reduced |
| IMC-Chicago, LLC | 20,906 | $514.9K | 0.01% | +20,906 | New |
| STRS Ohio | 20,900 | $514.8K | 0.00% | +4,300+25.9% | Added |
| Royal Bank of Canada | 20,543 | $506.0K | 0.00% | −20,473−49.9% | Reduced |
| Summit Global Investments | 20,049 | $494.0K | 0.03% | +20,049 | New |
| GoalVest Advisory LLC | 20,000 | $492.6K | 0.14% | 00.0% | Unchanged |
| Q Fund Management (Hong Kong) Ltd | 20,000 | $492.6K | 0.52% | +20,000 | New |
| EAM Investors, LLC | 18,967 | $467.2K | 0.07% | −114,218−85.8% | Reduced |
| Wolverine Trading, LLC | 17,874 | $450.4K | 0.01% | +17,874 | New |
| Two Sigma Investments, LP | 18,222 | $448.8K | 0.00% | −628−3.3% | Reduced |
| Spire Wealth Management | 17,517 | $431.4K | 0.01% | +2,628+17.7% | Added |
| HSBC Holdings PLC | 17,379 | $428.5K | 0.00% | +2,937+20.3% | Added |