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 2024
Institutional positions in American Superconductor Corp as of Sep 30, 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
- 171
- +17 vs. Q2 2024
- Shares held
- 27.2M
- +2.58M (+10.5%) vs. Q2 2024
- Total value
- $642.6M
- +$66.1M (+11.5%) vs. Q2 2024
- New holders
- 49
- 47 more added
- Sold out
- 32
- 51 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 30,841 | $727.8K | 0.00% | +2,618+9.3% | Added |
| Cambridge Investment Research Advisors, Inc. | 30,953 | $730.0K | 0.00% | −11,080−26.4% | Reduced |
| Franklin Resources Inc | 32,815 | $781.3K | 0.00% | +32,815 | New |
| Main Management ETF Advisors, LLC | 34,144 | $806.0K | 0.04% | +34,144 | New |
| Man Group plc | 34,218 | $807.5K | 0.00% | +21,050+159.9% | Added |
| California State Teachers Retirement System | 34,850 | $822.5K | 0.00% | +32,376+1,308.6% | Added |
| Alliancebernstein L.P. | 35,720 | $843.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 41,016 | $968.0K | 0.00% | +14,006+51.9% | Added |
| Panagora Asset Management Inc | 43,401 | $1.02M | 0.00% | +43,401 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 44,075 | $1.04M | 0.00% | +4,929+12.6% | Added |
| JPMorgan Chase & Co | 46,717 | $1.10M | 0.00% | −39,460−45.8% | Reduced |
| Options Solutions, LLC | 49,824 | $1.18M | 0.57% | −29,565−37.2% | Reduced |
| Rhumbline Advisers | 50,513 | $1.19M | 0.00% | +4,237+9.2% | Added |
| Dynamic Technology Lab Private Ltd | 51,141 | $1.21M | 0.13% | +51,141 | New |
| Merit Financial Group, LLC | 53,468 | $1.26M | 0.03% | −15,486−22.5% | Reduced |
| Barclays PLC | 58,328 | $1.38M | 0.00% | +46,080+376.2% | Added |
| UBS Asset Management Americas Inc | 60,332 | $1.42M | 0.00% | +60,332 | New |
| UBS Group AG | 60,827 | $1.44M | 0.00% | +4,837+8.6% | Added |
| SEI Investments Co | 62,997 | $1.49M | 0.00% | +38,949+162.0% | Added |
| New York State Common Retirement Fund | 64,100 | $1.51M | 0.00% | −5,400−7.8% | Reduced |
| Swiss National Bank | 72,200 | $1.70M | 0.00% | +72,200 | New |
| Capital Fund Management S.A. | 77,645 | $1.83M | 0.02% | +77,645 | New |
| Ameriprise Financial Inc | 78,500 | $1.85M | 0.00% | +61,826+370.8% | Added |
| Alps Advisors Inc | 78,579 | $1.85M | 0.01% | −3,206−3.9% | Reduced |
| Canada Pension Plan Investment Board | 92,800 | $2.19M | 0.00% | +88,700+2,163.4% | Added |
| Bridgeway Capital Management, LLC | 99,700 | $2.35M | 0.05% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 99,878 | $2.36M | 0.00% | −22,361−18.3% | Reduced |
| Ardsley Advisory Partners LP | 100,000 | $2.36M | 0.45% | +60,000+150.0% | Added |
| Assenagon Asset Management S.A. | 103,383 | $2.44M | 0.01% | −953,681−90.2% | Reduced |
| Hussman Strategic Advisors, Inc. | 105,000 | $2.48M | 0.61% | −21,000−16.7% | Reduced |
| AQR Capital Management LLC | 105,215 | $2.48M | 0.00% | +105,215 | New |
| GMT Capital Corp | 108,066 | $2.55M | 0.10% | 00.0% | Unchanged |
| Legato Capital Management LLC | 111,952 | $2.64M | 0.33% | +13,165+13.3% | Added |
| Palisades Investment Partners, LLC | 130,098 | $3.07M | 1.34% | +7,859+6.4% | Added |
| Qube Research & Technologies Ltd | 130,131 | $3.07M | 0.01% | +59,011+83.0% | Added |
| Lisanti Capital Growth, LLC | 131,340 | $3.10M | 0.78% | +68,845+110.2% | Added |
| EAM Investors, LLC | 133,185 | $3.14M | 0.47% | −70,741−34.7% | Reduced |
| Rice Hall James & Associates, LLC | 147,192 | $3.47M | 0.19% | −1,096−0.7% | Reduced |
| ClariVest Asset Management LLC | 156,560 | $3.66M | 0.37% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 158,389 | $3.74M | 0.01% | −29,600−15.7% | Reduced |
| Hillsdale Investment Management Inc. | 182,650 | $4.31M | 0.33% | −7,600−4.0% | Reduced |
| Andrew Hill Investment Advisors, Inc. | 187,540 | $4.43M | 3.31% | +77,433+70.3% | Added |
| Scout Investments, Inc. | 198,035 | $4.75M | 0.12% | +198,035 | New |
| ArrowMark Colorado Holdings LLC | 205,432 | $4.85M | 0.06% | −41,000−16.6% | Reduced |
| Goldman Sachs Group Inc | 241,126 | $5.69M | 0.00% | −121,703−33.5% | Reduced |
| D. E. Shaw & Co., Inc. | 253,413 | $5.98M | 0.01% | −396,844−61.0% | Reduced |
| Millennium Management LLC | 262,199 | $6.19M | 0.01% | −112,649−30.1% | Reduced |
| First Trust Advisors LP | 291,245 | $6.87M | 0.01% | +9,535+3.4% | Added |
| Citadel Advisors LLC | 296,057 | $6.99M | 0.01% | −84,738−22.3% | Reduced |
| Northern Trust Corp | 300,986 | $7.10M | 0.00% | +213,235+243.0% | Added |
| Charles Schwab Investment Management Inc | 304,528 | $7.19M | 0.00% | +206,655+211.1% | Added |
| Legal & General Group Plc | 337,207 | $7.96M | 0.00% | +331,795+6,130.7% | Added |
| Morgan Stanley | 377,405 | $8.91M | 0.00% | −429,011−53.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 426,261 | $10.1M | 0.05% | −96,652−18.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 434,145 | $10.2M | 0.02% | +434,145 | New |
| Essex Investment Management Co LLC | 464,506 | $11.0M | 1.91% | −113,120−19.6% | Reduced |
| Invesco Ltd. | 538,399 | $12.7M | 0.00% | −130,937−19.6% | Reduced |
| Telemark Asset Management, LLC | 600,000 | $14.2M | 1.43% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 607,945 | $14.3M | 0.00% | +75,729+14.2% | Added |
| Oberweis Asset Management Inc | 664,400 | $15.7M | 0.80% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 798,762 | $18.9M | 0.16% | −123,236−13.4% | Reduced |
| Geode Capital Management, LLC | 847,412 | $20.0M | 0.00% | +36,511+4.5% | Added |
| State Street Corp | 906,250 | $21.4M | 0.00% | +140,106+18.3% | Added |
| Royce & Associates LP | 955,174 | $22.5M | 0.20% | −27,789−2.8% | Reduced |
| Macquarie Group Ltd | 995,566 | $23.5M | 0.03% | +995,566 | New |
| Nuveen Asset Management, LLC | 1,030,310 | $24.3M | 0.01% | +744,687+260.7% | Added |
| Hood River Capital Management LLC | 1,431,940 | $33.8M | 0.55% | −303,074−17.5% | Reduced |
| AWM Investment Company, Inc. | 1,719,067 | $40.6M | 4.92% | −434,788−20.2% | Reduced |
| Baillie Gifford & Co | 2,106,395 | $49.7M | 0.04% | −107,688−4.9% | Reduced |
| Vanguard Group Inc | 2,426,278 | $57.3M | 0.00% | +339,558+16.3% | Added |
| BlackRock, Inc. | 2,720,783 | $64.2M | 0.00% | +2,720,783 | New |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −178,727−100.0% | Sold out |
| Prescott Group Capital Management, L.L.C. | 0 | $0 | 0.00% | −111,091−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −95,038−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −57,842−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −57,014−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −48,276−100.0% | Sold out |
| Laurion Capital Management LP | 0 | $0 | 0.00% | −38,206−100.0% | Sold out |
| Raymond James Financial Services Advisors, Inc. | 0 | $0 | 0.00% | −37,318−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −32,327−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −32,300−100.0% | Sold out |
| Semanteon Capital Management, LP | 0 | $0 | 0.00% | −27,114−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −25,760−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −20,677−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −20,490−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −20,399−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −20,100−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −18,117−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −13,300−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −12,408−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −9,799−100.0% | Sold out |
| Joule Financial, LLC | 0 | $0 | 0.00% | −9,654−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −9,570−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −9,496−100.0% | Sold out |
| M Holdings Securities, Inc. | 0 | $0 | 0.00% | −9,000−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −7,893−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −1,800−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −1,365−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |