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 2024
Institutional positions in American Superconductor Corp as of Mar 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
- 128
- +29 vs. Q4 2023
- Shares held
- 24.2M
- +7.97M (+49.2%) vs. Q4 2023
- Total value
- $326.7M
- +$146.1M (+80.9%) vs. Q4 2023
- New holders
- 43
- 41 more added
- Sold out
- 14
- 23 more reduced
Compare with Q4 2023: 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, Q1 2024
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AWM Investment Company, Inc. | 2,661,319 | $36.0M | 4.71% | +433,018+19.4% | Added |
| Baillie Gifford & Co | 2,526,550 | $34.1M | 0.03% | +440,271+21.1% | Added |
| Vanguard Group Inc | 1,698,934 | $23.0M | 0.00% | +396,814+30.5% | Added |
| Hood River Capital Management LLC | 1,618,807 | $21.9M | 0.49% | +1,618,807 | New |
| Morgan Stanley | 1,549,248 | $20.9M | 0.00% | +1,226,478+380.0% | Added |
| Royce & Associates LP | 1,193,182 | $16.1M | 0.14% | −52,678−4.2% | Reduced |
| Driehaus Capital Management LLC | 931,979 | $12.6M | 0.13% | +931,979 | New |
| Invesco Ltd. | 864,227 | $11.7M | 0.00% | −687−0.1% | Reduced |
| BlackRock Inc. | 746,266 | $10.1M | 0.00% | +132,966+21.7% | Added |
| Oberweis Asset Management Inc | 634,400 | $8.57M | 0.62% | +258,600+68.8% | Added |
| Essex Investment Management Co LLC | 583,924 | $7.89M | 1.56% | −40,094−6.4% | Reduced |
| Dimensional Fund Advisors LP | 580,547 | $7.84M | 0.00% | −103,151−15.1% | Reduced |
| Millennium Management LLC | 499,667 | $6.75M | 0.01% | +86,900+21.1% | Added |
| Telemark Asset Management, LLC | 400,000 | $5.40M | 0.56% | +400,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 395,791 | $5.35M | 0.02% | +273,957+224.9% | Added |
| Geode Capital Management, LLC | 384,741 | $5.20M | 0.00% | +89,780+30.4% | Added |
| Jane Street Group, LLC | 356,473 | $4.82M | 0.01% | +142,974+67.0% | Added |
| State Street Corp | 334,115 | $4.51M | 0.00% | −5,242−1.5% | Reduced |
| Citadel Advisors LLC | 332,397 | $4.49M | 0.00% | +70,167+26.8% | Added |
| Qube Research & Technologies Ltd | 320,220 | $4.33M | 0.01% | +88,586+38.2% | Added |
| ArrowMark Colorado Holdings LLC | 306,432 | $4.14M | 0.05% | −125,000−29.0% | Reduced |
| Laurion Capital Management LP | 300,323 | $4.06M | 0.11% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 288,195 | $3.89M | 0.00% | −147,549−33.9% | Reduced |
| First Trust Advisors LP | 251,163 | $3.39M | 0.00% | +13,928+5.9% | Added |
| CM Management, LLC | 250,000 | $3.38M | 2.84% | +55,000+28.2% | Added |
| Goldman Sachs Group Inc | 249,569 | $3.37M | 0.00% | +199,591+399.4% | Added |
| Cubist Systematic Strategies, LLC | 236,106 | $3.19M | 0.04% | +164,989+232.0% | Added |
| G2 Investment Partners Management LLC | 154,139 | $2.08M | 0.56% | +154,139 | New |
| Assenagon Asset Management S.A. | 142,192 | $1.92M | 0.01% | +116,786+459.7% | Added |
| Arrowstreet Capital, Limited Partnership | 133,903 | $1.81M | 0.00% | +133,903 | New |
| Bridgeway Capital Management, LLC | 129,700 | $1.75M | 0.04% | −15,000−10.4% | Reduced |
| Trexquant Investment LP | 116,797 | $1.58M | 0.03% | +4,972+4.4% | Added |
| Andrew Hill Investment Advisors, Inc. | 116,218 | $1.57M | 1.39% | +116,218 | New |
| Jump Financial, LLC | 115,844 | $1.57M | 0.04% | +60,435+109.1% | Added |
| Renaissance Technologies LLC | 113,489 | $1.53M | 0.00% | +113,489 | New |
| Prescott Group Capital Management, L.L.C. | 111,091 | $1.50M | 0.24% | +30,000+37.0% | Added |
| GMT Capital Corp | 108,066 | $1.46M | 0.06% | +108,066 | New |
| Hussman Strategic Advisors, Inc. | 105,000 | $1.42M | 0.33% | +105,000 | New |
| Squarepoint Ops LLC | 91,427 | $1.24M | 0.01% | +54,080+144.8% | Added |
| Legato Capital Management LLC | 89,667 | $1.21M | 0.15% | 00.0% | Unchanged |
| Alps Advisors Inc | 88,090 | $1.19M | 0.01% | +88,090 | New |
| ClariVest Asset Management LLC | 87,257 | $1.18M | 0.12% | +87,257 | New |
| Man Group plc | 85,445 | $1.15M | 0.00% | +22,197+35.1% | Added |
| Merit Financial Group, LLC | 77,951 | $1.04M | 0.02% | −4,438−5.4% | Reduced |
| Ardsley Advisory Partners LP | 75,000 | $1.01M | 0.15% | +75,000 | New |
| Northern Trust Corp | 71,713 | $968.8K | 0.00% | +12,620+21.4% | Added |
| Schonfeld Strategic Advisors LLC | 68,294 | $922.6K | 0.01% | +50,838+291.2% | Added |
| EAM Investors, LLC | 63,098 | $852.5K | 0.13% | +3,560+6.0% | Added |
| JPMorgan Chase & Co | 62,136 | $839.5K | 0.00% | +62,136 | New |
| ExodusPoint Capital Management, LP | 59,499 | $804.0K | 0.01% | −5,874−9.0% | Reduced |
| New York State Common Retirement Fund | 55,700 | $752.5K | 0.00% | +55,700 | New |
| Simplex Trading, LLC | 53,662 | $724.0K | 0.02% | +53,662 | New |
| Balyasny Asset Management LLC | 52,150 | $704.5K | 0.00% | −61,897−54.3% | Reduced |
| GTS Securities LLC | 50,149 | $677.5K | 0.02% | +6,996+16.2% | Added |
| Acadian Asset Management LLC | 48,218 | $649.0K | 0.00% | +23,174+92.5% | Added |
| IMC-Chicago, LLC | 47,219 | $637.9K | 0.02% | +14,850+45.9% | Added |
| Cambridge Investment Research Advisors, Inc. | 45,367 | $613.0K | 0.00% | −14,883−24.7% | Reduced |
| Brevan Howard Capital Management LP | 41,831 | $565.1K | 0.05% | +41,831 | New |
| Joule Financial, LLC | 41,242 | $557.2K | 0.20% | +20,621+100.0% | Added |
| Citigroup Inc | 40,405 | $545.9K | 0.00% | +3,052+8.2% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 39,926 | $539.4K | 0.00% | −407−1.0% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 38,318 | $517.7K | 0.00% | +10,197+36.3% | Added |
| Boothbay Fund Management, LLC | 37,290 | $503.8K | 0.01% | +37,290 | New |
| Bank of Montreal | 37,253 | $503.7K | 0.00% | +37,253 | New |
| Two Sigma Investments, LP | 35,929 | $485.4K | 0.00% | +17,929+99.6% | Added |
| Marathon Trading Investment Management LLC | 34,400 | $464.7K | 0.18% | +34,400 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 34,326 | $463.7K | 0.12% | +28,364+475.7% | Added |
| Barclays PLC | 34,279 | $463.1K | 0.00% | −21,330−38.4% | Reduced |
| Bank of America Corp | 32,811 | $443.3K | 0.00% | −18,766−36.4% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 32,662 | $441.3K | 0.03% | +32,662 | New |
| GoalVest Advisory LLC | 29,930 | $404.4K | 0.13% | +29,930 | New |
| Royal Bank of Canada | 28,649 | $388.0K | 0.00% | +729+2.6% | Added |
| Landscape Capital Management, L.L.C. | 27,754 | $375.0K | 0.03% | 00.0% | Unchanged |
| Graham Capital Management, L.P. | 26,892 | $363.3K | 0.01% | −50,438−65.2% | Reduced |
| Cannon Global Investment Management, LLC | 25,500 | $344.5K | 0.93% | +25,500 | New |
| Engineers Gate Manager LP | 24,155 | $326.3K | 0.01% | +24,155 | New |
| Verition Fund Management LLC | 23,985 | $324.0K | 0.00% | +23,985 | New |
| Options Solutions, LLC | 23,201 | $313.4K | 0.18% | +23,201 | New |
| Harel Insurance Investments & Financial Services Ltd. | 22,924 | $310.0K | 0.01% | −3,388−12.9% | Reduced |
| Bailard, Inc. | 22,438 | $303.1K | 0.01% | +238+1.1% | Added |
| Jefferies Financial Group Inc. | 21,500 | $290.5K | 0.01% | +200+0.9% | Added |
| Ameriprise Financial Inc | 20,133 | $272.0K | 0.00% | +20,133 | New |
| Bank of New York Mellon Corp | 19,587 | $264.6K | 0.00% | −8,602−30.5% | Reduced |
| Susquehanna International Group, LLP | 17,067 | $230.6K | 0.00% | −155,158−90.1% | Reduced |
| Occudo Quantitative Strategies LP | 16,961 | $229.1K | 0.04% | +16,961 | New |
| Price T Rowe Associates Inc | 16,911 | $229.0K | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 16,471 | $222.5K | 0.04% | 00.0% | Unchanged |
| UBS Group AG | 16,250 | $219.5K | 0.00% | +13,535+498.5% | Added |
| Charles Schwab Investment Management Inc | 15,966 | $215.7K | 0.00% | 00.0% | Unchanged |
| Atria Wealth Solutions, Inc. | 15,498 | $209.4K | 0.00% | +1,029+7.1% | Added |
| Quadrature Capital Ltd | 15,066 | $203.2K | 0.00% | +15,066 | New |
| Wells Fargo & Company | 13,334 | $180.1K | 0.00% | +11,238+536.2% | Added |
| Corton Capital Inc. | 12,987 | $175.5K | 0.06% | +12,987 | New |
| LPL Financial LLC | 12,819 | $173.2K | 0.00% | +1,620+14.5% | Added |
| ProShare Advisors LLC | 12,325 | $166.5K | 0.00% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 12,200 | $164.8K | 0.00% | −8,000−39.6% | Reduced |
| Greenwich Wealth Management LLC | 11,924 | $161.0K | 0.01% | −2,442−17.0% | Reduced |
| Hillsdale Investment Management Inc. | 11,300 | $152.7K | 0.01% | +11,300 | New |
| Virtu Financial LLC | 11,284 | $152.0K | 0.01% | +11,284 | New |
| GPS Wealth Strategies Group, LLC | 9,152 | $123.6K | 0.02% | −1,500−14.1% | Reduced |