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
- 27.6M
- +926.9K (+3.5%) vs. Q4 2024
- Total value
- $500.1M
- −$156.3M (−23.8%) 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 | $953.6M |
| 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 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,258,423 | $59.1M | 0.00% | −169,470−4.9% | Reduced |
| Vanguard Group Inc | 2,287,585 | $41.5M | 0.00% | +64,650+2.9% | Added |
| AWM Investment Company, Inc. | 1,558,478 | $28.3M | 3.89% | +45,000+3.0% | Added |
| Baillie Gifford & Co | 1,518,890 | $27.6M | 0.02% | −130,900−7.9% | Reduced |
| Hood River Capital Management LLC | 1,239,096 | $22.5M | 0.38% | +2,950+0.2% | Added |
| Macquarie Group Ltd | 1,026,822 | $18.6M | 0.02% | −13,357−1.3% | Reduced |
| State Street Corp | 890,047 | $16.1M | 0.00% | −19,248−2.1% | Reduced |
| Geode Capital Management, LLC | 881,681 | $16.0M | 0.00% | +25,226+2.9% | Added |
| Royce & Associates LP | 867,342 | $15.7M | 0.17% | +28,410+3.4% | Added |
| Driehaus Capital Management LLC | 839,843 | $15.2M | 0.15% | −102,855−10.9% | Reduced |
| Atreides Management, LP | 824,040 | $14.9M | 0.54% | +824,040 | New |
| Nuveen, LLC | 778,566 | $14.1M | 0.00% | +778,566 | New |
| Dimensional Fund Advisors LP | 668,152 | $12.1M | 0.00% | +13,853+2.1% | Added |
| Oberweis Asset Management Inc | 668,200 | $12.1M | 0.60% | +3,800+0.6% | Added |
| Telemark Asset Management, LLC | 600,000 | $10.9M | 1.42% | 00.0% | Unchanged |
| Morgan Stanley | 509,897 | $9.25M | 0.00% | +71,726+16.4% | Added |
| Goldman Sachs Group Inc | 481,961 | $8.74M | 0.00% | +170,243+54.6% | Added |
| Qube Research & Technologies Ltd | 409,407 | $7.43M | 0.01% | +225,433+122.5% | Added |
| Essex Investment Management Co LLC | 372,221 | $6.75M | 1.41% | −57,655−13.4% | Reduced |
| Legal & General Group Plc | 364,530 | $6.61M | 0.00% | +16,981+4.9% | Added |
| Allspring Global Investments Holdings, LLC | 341,030 | $6.27M | 0.01% | −36,345−9.6% | Reduced |
| First Trust Advisors LP | 330,552 | $6.00M | 0.01% | −4,501−1.3% | Reduced |
| Northern Trust Corp | 330,513 | $6.00M | 0.00% | +2,708+0.8% | Added |
| Charles Schwab Investment Management Inc | 309,681 | $5.62M | 0.00% | −8,188−2.6% | Reduced |
| Wellington Management Group LLP | 289,173 | $5.25M | 0.00% | −172,057−37.3% | Reduced |
| Invesco Ltd. | 243,523 | $4.42M | 0.00% | +45,740+23.1% | Added |
| Trexquant Investment LP | 242,369 | $4.40M | 0.05% | +242,369 | New |
| Millennium Management LLC | 225,682 | $4.09M | 0.00% | +202,617+878.5% | Added |
| AQR Capital Management LLC | 211,164 | $3.83M | 0.00% | −45,066−17.6% | Reduced |
| Hillsdale Investment Management Inc. | 190,400 | $3.45M | 0.18% | +6,600+3.6% | Added |
| UBS Group AG | 175,212 | $3.18M | 0.00% | −250,665−58.9% | Reduced |
| Raymond James Financial Inc | 157,889 | $2.86M | 0.00% | −255,757−61.8% | Reduced |
| Capital Fund Management S.A. | 147,473 | $2.68M | 0.03% | +98,851+203.3% | Added |
| Panagora Asset Management Inc | 145,314 | $2.64M | 0.01% | +71,701+97.4% | Added |
| Palisades Investment Partners, LLC | 144,604 | $2.62M | 1.32% | +2,189+1.5% | Added |
| Citadel Advisors LLC | 131,561 | $2.39M | 0.00% | −128,278−49.4% | Reduced |
| ArrowMark Colorado Holdings LLC | 130,432 | $2.37M | 0.04% | −16,000−10.9% | Reduced |
| Jane Street Group, LLC | 121,539 | $2.20M | 0.00% | +92,197+314.2% | Added |
| Twinbeech Capital LP | 115,458 | $2.09M | 0.04% | +115,458 | New |
| Cubist Systematic Strategies, LLC | 109,285 | $1.98M | 0.03% | +109,285 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 108,571 | $1.97M | 0.01% | −168,679−60.8% | Reduced |
| GMT Capital Corp | 108,066 | $1.96M | 0.10% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 107,946 | $1.96M | 0.00% | −663−0.6% | Reduced |
| Advisor Group Holdings, Inc. | 107,406 | $1.95M | 0.00% | +93,241+658.2% | Added |
| Algert Global LLC | 95,658 | $1.74M | 0.04% | +33,100+52.9% | Added |
| Baird Financial Group, Inc. | 85,766 | $1.56M | 0.00% | +17,821+26.2% | Added |
| Rice Hall James & Associates, LLC | 82,749 | $1.50M | 0.09% | −381−0.5% | Reduced |
| D. E. Shaw & Co., Inc. | 74,991 | $1.36M | 0.00% | −177,218−70.3% | Reduced |
| Andrew Hill Investment Advisors, Inc. | 72,891 | $1.32M | 1.28% | −42,080−36.6% | Reduced |
| Swiss National Bank | 72,600 | $1.32M | 0.00% | −2,700−3.6% | Reduced |
| UBS Asset Management Americas Inc | 71,562 | $1.30M | 0.00% | −1,712−2.3% | Reduced |
| Ameriprise Financial Inc | 68,268 | $1.24M | 0.00% | −1,013−1.5% | Reduced |
| New York State Common Retirement Fund | 66,536 | $1.21M | 0.00% | 00.0% | Unchanged |
| Dark Forest Capital Management LP | 66,523 | $1.21M | 0.06% | +66,523 | New |
| Campbell Newman Asset Management Inc | 60,626 | $1.10M | 0.09% | +421+0.7% | Added |
| Alps Advisors Inc | 59,464 | $1.08M | 0.01% | +1,160+2.0% | Added |
| JPMorgan Chase & Co | 58,447 | $1.06M | 0.00% | +8,435+16.9% | Added |
| Bank of America Corp | 52,934 | $960.2K | 0.00% | +37,619+245.6% | Added |
| Merit Financial Group, LLC | 51,751 | $938.8K | 0.01% | −191−0.4% | Reduced |
| Susquehanna International Group, LLP | 50,827 | $922.0K | 0.00% | +3,326+7.0% | Added |
| Rhumbline Advisers | 49,173 | $892.0K | 0.00% | −1,946−3.8% | Reduced |
| Barclays PLC | 47,993 | $870.6K | 0.00% | −17,910−27.2% | Reduced |
| Wells Fargo & Company | 46,942 | $851.5K | 0.00% | +12,675+37.0% | Added |
| Amundi | 49,764 | $829.6K | 0.00% | −3,147−5.9% | Reduced |
| Squarepoint Ops LLC | 45,478 | $825.0K | 0.00% | +45,478 | New |
| Dorsey & Whitney Trust CO LLC | 45,300 | $821.7K | 0.05% | 00.0% | Unchanged |
| Range Financial Group LLC | 44,925 | $814.9K | 0.36% | +2,907+6.9% | Added |
| Legato Capital Management LLC | 44,363 | $804.7K | 0.11% | −9,913−18.3% | Reduced |
| Verition Fund Management LLC | 44,304 | $803.7K | 0.00% | +44,304 | New |
| Franklin Resources Inc | 44,102 | $800.0K | 0.00% | +11,287+34.4% | Added |
| Two Sigma Investments, LP | 43,357 | $786.5K | 0.00% | +25,135+137.9% | Added |
| Options Solutions, LLC | 42,510 | $771.1K | 0.37% | −11,729−21.6% | Reduced |
| Point72 Asset Management, L.P. | 42,441 | $769.9K | 0.00% | +42,441 | New |
| Emerald Advisers, LLC | 38,719 | $702.4K | 0.03% | +10,600+37.7% | Added |
| CWM Advisors, LLC | 38,556 | $699.4K | 0.08% | +38,556 | New |
| Voya Investment Management LLC | 38,398 | $696.5K | 0.00% | +27,793+262.1% | Added |
| Cambridge Investment Research Advisors, Inc. | 37,723 | $684.0K | 0.00% | +4,259+12.7% | Added |
| ExodusPoint Capital Management, LP | 36,265 | $658.0K | 0.01% | +36,265 | New |
| Alliancebernstein L.P. | 35,720 | $648.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 35,559 | $645.0K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 33,775 | $612.7K | 0.00% | −24,759−42.3% | Reduced |
| Gsa Capital Partners LLP | 31,006 | $562.0K | 0.05% | −3,655−10.5% | Reduced |
| SEI Investments Co | 29,856 | $542.0K | 0.00% | −22,250−42.7% | Reduced |
| Deutsche Bank AG | 29,835 | $541.2K | 0.00% | −3,078−9.4% | Reduced |
| HRT Financial LP | 29,678 | $538.0K | 0.00% | −9,596−24.4% | Reduced |
| Engineers Gate Manager LP | 29,137 | $528.5K | 0.01% | +29,137 | New |
| Fox Run Management, L.L.C. | 28,719 | $521.0K | 0.08% | +28,719 | New |
| Quantum Private Wealth, LLC | 27,423 | $497.5K | 0.19% | +16,000+140.1% | Added |
| Citigroup Inc | 27,200 | $493.4K | 0.00% | −3,719−12.0% | Reduced |
| Royal Bank of Canada | 26,190 | $475.0K | 0.00% | +5,647+27.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 25,295 | $458.9K | 0.00% | +2,989+13.4% | Added |
| HSBC Holdings PLC | 25,430 | $458.3K | 0.00% | +8,051+46.3% | Added |
| Los Angeles Capital Management LLC | 24,630 | $446.8K | 0.00% | −13,742−35.8% | Reduced |
| Price T Rowe Associates Inc | 24,277 | $441.0K | 0.00% | +1,677+7.4% | Added |
| Balyasny Asset Management LLC | 22,205 | $402.8K | 0.00% | −216,787−90.7% | Reduced |
| Hussman Strategic Advisors, Inc. | 21,000 | $380.9K | 0.09% | −42,000−66.7% | Reduced |
| STRS Ohio | 20,900 | $379.1K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 20,808 | $377.5K | 0.00% | −393−1.9% | Reduced |
| State Board of Administration of Florida Retirement System | 20,649 | $374.6K | 0.00% | +20,649 | New |
| Tudor Investment Corp Et Al | 20,114 | $364.9K | 0.00% | +20,114 | New |