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 |
|---|---|---|---|---|---|
| Royal Bank of Canada | 26,190 | $475.0K | 0.00% | +5,647+27.5% | Added |
| Citigroup Inc | 27,200 | $493.4K | 0.00% | −3,719−12.0% | Reduced |
| Quantum Private Wealth, LLC | 27,423 | $497.5K | 0.19% | +16,000+140.1% | Added |
| Fox Run Management, L.L.C. | 28,719 | $521.0K | 0.08% | +28,719 | New |
| Engineers Gate Manager LP | 29,137 | $528.5K | 0.01% | +29,137 | New |
| HRT Financial LP | 29,678 | $538.0K | 0.00% | −9,596−24.4% | Reduced |
| Deutsche Bank AG | 29,835 | $541.2K | 0.00% | −3,078−9.4% | Reduced |
| SEI Investments Co | 29,856 | $542.0K | 0.00% | −22,250−42.7% | Reduced |
| Gsa Capital Partners LLP | 31,006 | $562.0K | 0.05% | −3,655−10.5% | Reduced |
| LPL Financial LLC | 33,775 | $612.7K | 0.00% | −24,759−42.3% | Reduced |
| California State Teachers Retirement System | 35,559 | $645.0K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 35,720 | $648.0K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 36,265 | $658.0K | 0.01% | +36,265 | New |
| Cambridge Investment Research Advisors, Inc. | 37,723 | $684.0K | 0.00% | +4,259+12.7% | Added |
| CWM Advisors, LLC | 38,556 | $699.4K | 0.08% | +38,556 | New |
| Emerald Advisers, LLC | 38,719 | $702.4K | 0.03% | +10,600+37.7% | Added |
| Point72 Asset Management, L.P. | 42,441 | $769.9K | 0.00% | +42,441 | New |
| Options Solutions, LLC | 42,510 | $771.1K | 0.37% | −11,729−21.6% | Reduced |
| Two Sigma Investments, LP | 43,357 | $786.5K | 0.00% | +25,135+137.9% | Added |
| Franklin Resources Inc | 44,102 | $800.0K | 0.00% | +11,287+34.4% | Added |
| Verition Fund Management LLC | 44,304 | $803.7K | 0.00% | +44,304 | New |
| Legato Capital Management LLC | 44,363 | $804.7K | 0.11% | −9,913−18.3% | Reduced |
| Range Financial Group LLC | 44,925 | $814.9K | 0.36% | +2,907+6.9% | Added |
| Dorsey & Whitney Trust CO LLC | 45,300 | $821.7K | 0.05% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 45,478 | $825.0K | 0.00% | +45,478 | New |
| Amundi | 49,764 | $829.6K | 0.00% | −3,147−5.9% | Reduced |
| Wells Fargo & Company | 46,942 | $851.5K | 0.00% | +12,675+37.0% | Added |
| Barclays PLC | 47,993 | $870.6K | 0.00% | −17,910−27.2% | Reduced |
| Rhumbline Advisers | 49,173 | $892.0K | 0.00% | −1,946−3.8% | Reduced |
| Susquehanna International Group, LLP | 50,827 | $922.0K | 0.00% | +3,326+7.0% | Added |
| Merit Financial Group, LLC | 51,751 | $938.8K | 0.01% | −191−0.4% | Reduced |
| Bank of America Corp | 52,934 | $960.2K | 0.00% | +37,619+245.6% | Added |
| JPMorgan Chase & Co | 58,447 | $1.06M | 0.00% | +8,435+16.9% | Added |
| Alps Advisors Inc | 59,464 | $1.08M | 0.01% | +1,160+2.0% | Added |
| Campbell Newman Asset Management Inc | 60,626 | $1.10M | 0.09% | +421+0.7% | Added |
| Dark Forest Capital Management LP | 66,523 | $1.21M | 0.06% | +66,523 | New |
| New York State Common Retirement Fund | 66,536 | $1.21M | 0.00% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 68,268 | $1.24M | 0.00% | −1,013−1.5% | Reduced |
| UBS Asset Management Americas Inc | 71,562 | $1.30M | 0.00% | −1,712−2.3% | Reduced |
| Swiss National Bank | 72,600 | $1.32M | 0.00% | −2,700−3.6% | Reduced |
| Andrew Hill Investment Advisors, Inc. | 72,891 | $1.32M | 1.28% | −42,080−36.6% | Reduced |
| D. E. Shaw & Co., Inc. | 74,991 | $1.36M | 0.00% | −177,218−70.3% | Reduced |
| Rice Hall James & Associates, LLC | 82,749 | $1.50M | 0.09% | −381−0.5% | Reduced |
| Baird Financial Group, Inc. | 85,766 | $1.56M | 0.00% | +17,821+26.2% | Added |
| Algert Global LLC | 95,658 | $1.74M | 0.04% | +33,100+52.9% | Added |
| Advisor Group Holdings, Inc. | 107,406 | $1.95M | 0.00% | +93,241+658.2% | Added |
| Bank of New York Mellon Corp | 107,946 | $1.96M | 0.00% | −663−0.6% | Reduced |
| GMT Capital Corp | 108,066 | $1.96M | 0.10% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 108,571 | $1.97M | 0.01% | −168,679−60.8% | Reduced |
| Cubist Systematic Strategies, LLC | 109,285 | $1.98M | 0.03% | +109,285 | New |
| Twinbeech Capital LP | 115,458 | $2.09M | 0.04% | +115,458 | New |
| Jane Street Group, LLC | 121,539 | $2.20M | 0.00% | +92,197+314.2% | Added |
| ArrowMark Colorado Holdings LLC | 130,432 | $2.37M | 0.04% | −16,000−10.9% | Reduced |
| Citadel Advisors LLC | 131,561 | $2.39M | 0.00% | −128,278−49.4% | Reduced |
| Palisades Investment Partners, LLC | 144,604 | $2.62M | 1.32% | +2,189+1.5% | Added |
| Panagora Asset Management Inc | 145,314 | $2.64M | 0.01% | +71,701+97.4% | Added |
| Capital Fund Management S.A. | 147,473 | $2.68M | 0.03% | +98,851+203.3% | Added |
| Raymond James Financial Inc | 157,889 | $2.86M | 0.00% | −255,757−61.8% | Reduced |
| UBS Group AG | 175,212 | $3.18M | 0.00% | −250,665−58.9% | Reduced |
| Hillsdale Investment Management Inc. | 190,400 | $3.45M | 0.18% | +6,600+3.6% | Added |
| AQR Capital Management LLC | 211,164 | $3.83M | 0.00% | −45,066−17.6% | Reduced |
| Millennium Management LLC | 225,682 | $4.09M | 0.00% | +202,617+878.5% | Added |
| Trexquant Investment LP | 242,369 | $4.40M | 0.05% | +242,369 | New |
| Invesco Ltd. | 243,523 | $4.42M | 0.00% | +45,740+23.1% | Added |
| Wellington Management Group LLP | 289,173 | $5.25M | 0.00% | −172,057−37.3% | Reduced |
| Charles Schwab Investment Management Inc | 309,681 | $5.62M | 0.00% | −8,188−2.6% | Reduced |
| Northern Trust Corp | 330,513 | $6.00M | 0.00% | +2,708+0.8% | Added |
| First Trust Advisors LP | 330,552 | $6.00M | 0.01% | −4,501−1.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 341,030 | $6.27M | 0.01% | −36,345−9.6% | Reduced |
| Legal & General Group Plc | 364,530 | $6.61M | 0.00% | +16,981+4.9% | Added |
| Essex Investment Management Co LLC | 372,221 | $6.75M | 1.41% | −57,655−13.4% | Reduced |
| Qube Research & Technologies Ltd | 409,407 | $7.43M | 0.01% | +225,433+122.5% | Added |
| Goldman Sachs Group Inc | 481,961 | $8.74M | 0.00% | +170,243+54.6% | Added |
| Morgan Stanley | 509,897 | $9.25M | 0.00% | +71,726+16.4% | Added |
| Telemark Asset Management, LLC | 600,000 | $10.9M | 1.42% | 00.0% | Unchanged |
| Oberweis Asset Management Inc | 668,200 | $12.1M | 0.60% | +3,800+0.6% | Added |
| Dimensional Fund Advisors LP | 668,152 | $12.1M | 0.00% | +13,853+2.1% | Added |
| Nuveen, LLC | 778,566 | $14.1M | 0.00% | +778,566 | New |
| Atreides Management, LP | 824,040 | $14.9M | 0.54% | +824,040 | New |
| Driehaus Capital Management LLC | 839,843 | $15.2M | 0.15% | −102,855−10.9% | Reduced |
| Royce & Associates LP | 867,342 | $15.7M | 0.17% | +28,410+3.4% | Added |
| Geode Capital Management, LLC | 881,681 | $16.0M | 0.00% | +25,226+2.9% | Added |
| State Street Corp | 890,047 | $16.1M | 0.00% | −19,248−2.1% | Reduced |
| Macquarie Group Ltd | 1,026,822 | $18.6M | 0.02% | −13,357−1.3% | Reduced |
| Hood River Capital Management LLC | 1,239,096 | $22.5M | 0.38% | +2,950+0.2% | Added |
| Baillie Gifford & Co | 1,518,890 | $27.6M | 0.02% | −130,900−7.9% | Reduced |
| AWM Investment Company, Inc. | 1,558,478 | $28.3M | 3.89% | +45,000+3.0% | Added |
| Vanguard Group Inc | 2,287,585 | $41.5M | 0.00% | +64,650+2.9% | Added |
| BlackRock, Inc. | 3,258,423 | $59.1M | 0.00% | −169,470−4.9% | Reduced |
| Proequities, Inc. | 0 | $0 | 0.00% | −2,038−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −296,792−100.0% | Sold out |
| KBC Group NV | 0 | $0 | 0.00% | −101,175−100.0% | Sold out |
| Ardsley Advisory Partners LP | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| KP Management LLC | 0 | $0 | 0.00% | −95,000−100.0% | Sold out |
| Nkcfo LLC | 0 | $0 | 0.00% | −47,000−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −45,900−100.0% | Sold out |
| Main Management ETF Advisors, LLC | 0 | $0 | 0.00% | −31,328−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −26,791−100.0% | Sold out |
| IMC-Chicago, LLC | 0 | $0 | 0.00% | −20,906−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −20,049−100.0% | Sold out |