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, Q2 2025
Institutional positions in American Superconductor Corp as of Jun 30, 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
- 232
- +44 vs. Q1 2025
- Shares held
- 32.7M
- +5.17M (+18.8%) vs. Q1 2025
- Total value
- $1.20B
- +$701.0M (+140.3%) vs. Q1 2025
- New holders
- 70
- 95 more added
- Sold out
- 26
- 47 more reduced
1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2025: 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, Q2 2025
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bridgefront Capital, LLC | 13,273 | $487.0K | 0.13% | +13,273 | New |
| Manufacturers Life Insurance Company, The | 13,705 | $502.8K | 0.00% | +1,259+10.1% | Added |
| Commonwealth Equity Services, LLC | 13,774 | $505.0K | 0.00% | +13,774 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 14,916 | $547.3K | 0.00% | 00.0% | Unchanged |
| Acas, LLC | 10,200 | $551.7K | 0.37% | +35+0.3% | Added |
| Hennion & Walsh Asset Management, Inc. | 15,296 | $561.2K | 0.02% | +15,296 | New |
| Sowell Financial Services LLC | 15,451 | $566.9K | 0.02% | −1,008−6.1% | Reduced |
| TFC Financial Management | 16,731 | $613.9K | 0.08% | 00.0% | Unchanged |
| GoalVest Advisory LLC | 18,400 | $675.1K | 0.17% | −500−2.6% | Reduced |
| IMC-Chicago, LLC | 18,609 | $682.8K | 0.02% | +18,609 | New |
| Aster Capital Management (DIFC) Ltd | 18,809 | $690.1K | 0.16% | +18,809 | New |
| Man Group plc | 18,903 | $693.6K | 0.00% | +6,485+52.2% | Added |
| Shay Capital LLC | 19,500 | $715.5K | 0.16% | +19,500 | New |
| STRS Ohio | 19,600 | $719.1K | 0.00% | −1,300−6.2% | Reduced |
| FNY Investment Advisers, LLC | 20,000 | $733.0K | 0.31% | +20,000 | New |
| Cookson Peirce & Co Inc | 20,000 | $733.8K | 0.03% | +20,000 | New |
| Voya Investment Management LLC | 20,051 | $735.7K | 0.00% | +852+4.4% | Added |
| State Board of Administration of Florida Retirement System | 20,649 | $757.6K | 0.00% | 00.0% | Unchanged |
| Nkcfo LLC | 21,000 | $770.0K | 0.32% | +21,000 | New |
| Dorsey & Whitney Trust CO LLC | 21,611 | $792.9K | 0.04% | −23,689−52.3% | Reduced |
| Truist Financial Corp | 22,270 | $817.1K | 0.00% | +12,035+117.6% | Added |
| HSBC Holdings PLC | 23,010 | $845.0K | 0.00% | −2,420−9.5% | Reduced |
| Los Angeles Capital Management LLC | 24,693 | $906.0K | 0.00% | +63+0.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 24,700 | $906.2K | 0.00% | −595−2.4% | Reduced |
| Virtus ETF Advisers LLC | 24,815 | $910.5K | 0.56% | +24,815 | New |
| Advisory Services Network, LLC | 16,779 | $953.9K | 0.02% | +2,762+19.7% | Added |
| Intech Investment Management LLC | 26,358 | $967.1K | 0.01% | +7,509+39.8% | Added |
| HRT Financial LP | 26,688 | $979.0K | 0.00% | −2,990−10.1% | Reduced |
| Citigroup Inc | 26,706 | $979.8K | 0.00% | −494−1.8% | Reduced |
| Quantum Private Wealth, LLC | 27,423 | $1.01M | 0.33% | 00.0% | Unchanged |
| Deutsche Bank AG | 27,644 | $1.01M | 0.00% | −2,191−7.3% | Reduced |
| Cubist Systematic Strategies, LLC | 27,730 | $1.02M | 0.01% | −81,555−74.6% | Reduced |
| Price T Rowe Associates Inc | 27,853 | $1.02M | 0.00% | +3,576+14.7% | Added |
| Royal Bank of Canada | 31,501 | $1.16M | 0.00% | +5,311+20.3% | Added |
| Aquatic Capital Management LLC | 33,025 | $1.21M | 0.02% | +33,025 | New |
| Dark Forest Capital Management LP | 34,747 | $1.27M | 0.05% | −31,776−47.8% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 34,948 | $1.28M | 0.00% | −2,775−7.4% | Reduced |
| Prudential Financial Inc | 35,170 | $1.29M | 0.00% | +35,170 | New |
| Alliancebernstein L.P. | 35,720 | $1.31M | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 36,270 | $1.33M | 0.00% | +2,495+7.4% | Added |
| Kornitzer Capital Management Inc | 36,660 | $1.35M | 0.03% | +36,660 | New |
| Verition Fund Management LLC | 37,200 | $1.36M | 0.01% | −7,104−16.0% | Reduced |
| Fox Run Management, L.L.C. | 37,505 | $1.38M | 0.23% | +8,786+30.6% | Added |
| SEI Investments Co | 42,073 | $1.54M | 0.00% | +12,217+40.9% | Added |
| XTX Topco Ltd | 42,213 | $1.55M | 0.06% | +25,944+159.5% | Added |
| Oppenheimer & Co Inc | 43,595 | $1.60M | 0.02% | +33,595+336.0% | Added |
| Point72 Asset Management, L.P. | 45,659 | $1.68M | 0.00% | +3,218+7.6% | Added |
| Janney Montgomery Scott LLC | 45,761 | $1.68M | 0.00% | +45,761 | New |
| Janus Henderson Group PLC | 46,761 | $1.72M | 0.00% | +30,961+196.0% | Added |
| Amundi | 43,895 | $1.72M | 0.00% | −5,869−11.8% | Reduced |
| Polen Capital Management LLC | 47,221 | $1.73M | 0.01% | +47,221 | New |
| Options Solutions, LLC | 47,221 | $1.73M | 0.62% | +4,711+11.1% | Added |
| Mackenzie Financial Corp | 49,770 | $1.83M | 0.00% | +49,770 | New |
| Merit Financial Group, LLC | 49,895 | $1.83M | 0.02% | −1,856−3.6% | Reduced |
| Franklin Resources Inc | 50,515 | $1.85M | 0.00% | +6,413+14.5% | Added |
| California State Teachers Retirement System | 50,769 | $1.86M | 0.00% | +15,210+42.8% | Added |
| JPMorgan Chase & Co | 55,637 | $2.04M | 0.00% | −2,810−4.8% | Reduced |
| Centiva Capital, LP | 56,940 | $2.09M | 0.14% | +56,940 | New |
| Rhumbline Advisers | 61,162 | $2.24M | 0.00% | +11,989+24.4% | Added |
| Alps Advisors Inc | 64,643 | $2.37M | 0.01% | +5,179+8.7% | Added |
| Campbell Newman Asset Management Inc | 65,011 | $2.39M | 0.19% | +4,385+7.2% | Added |
| Penserra Capital Management LLC | 68,312 | $2.51M | 0.03% | +68,312 | New |
| New York State Common Retirement Fund | 69,336 | $2.54M | 0.00% | +2,800+4.2% | Added |
| Lumbard & Kellner, LLC | 72,439 | $2.66M | 1.16% | +72,439 | New |
| ExodusPoint Capital Management, LP | 74,362 | $2.73M | 0.03% | +38,097+105.1% | Added |
| EAM Investors, LLC | 75,294 | $2.76M | 0.42% | +75,294 | New |
| Balyasny Asset Management LLC | 75,303 | $2.76M | 0.01% | +53,098+239.1% | Added |
| Legato Capital Management LLC | 78,562 | $2.88M | 0.34% | +34,199+77.1% | Added |
| Barclays PLC | 80,361 | $2.95M | 0.00% | +32,368+67.4% | Added |
| Baird Financial Group, Inc. | 83,082 | $3.05M | 0.01% | −2,684−3.1% | Reduced |
| Swiss National Bank | 83,300 | $3.06M | 0.00% | +10,700+14.7% | Added |
| Rice Hall James & Associates, LLC | 94,731 | $3.48M | 0.19% | +11,982+14.5% | Added |
| Susquehanna International Group, LLP | 95,265 | $3.50M | 0.01% | +44,438+87.4% | Added |
| GMT Capital Corp | 108,066 | $3.96M | 0.17% | 00.0% | Unchanged |
| Castleark Management LLC | 109,170 | $4.01M | 0.12% | +109,170 | New |
| Capital Fund Management S.A. | 112,345 | $4.12M | 0.05% | −35,128−23.8% | Reduced |
| Bank of New York Mellon Corp | 120,854 | $4.43M | 0.00% | +12,908+12.0% | Added |
| Two Sigma Investments, LP | 122,850 | $4.51M | 0.01% | +79,493+183.3% | Added |
| Jump Financial, LLC | 128,635 | $4.72M | 0.06% | +128,635 | New |
| Qube Research & Technologies Ltd | 130,120 | $4.77M | 0.01% | −279,287−68.2% | Reduced |
| D. E. Shaw & Co., Inc. | 133,644 | $4.90M | 0.00% | +58,653+78.2% | Added |
| UBS Asset Management Americas Inc | 134,234 | $4.93M | 0.00% | +62,672+87.6% | Added |
| Palisades Investment Partners, LLC | 140,498 | $5.15M | 2.25% | −4,106−2.8% | Reduced |
| Kennedy Capital Management, Inc. | 146,209 | $5.36M | 0.13% | +127,005+661.3% | Added |
| Squarepoint Ops LLC | 147,224 | $5.40M | 0.01% | +101,746+223.7% | Added |
| Advisor Group Holdings, Inc. | 151,278 | $5.55M | 0.01% | +43,872+40.8% | Added |
| Andrew Hill Investment Advisors, Inc. | 152,779 | $5.61M | 4.51% | +79,888+109.6% | Added |
| ArrowMark Colorado Holdings LLC | 156,432 | $5.74M | 0.10% | +26,000+19.9% | Added |
| Invesco Ltd. | 159,292 | $5.84M | 0.00% | −84,231−34.6% | Reduced |
| Trexquant Investment LP | 159,483 | $5.85M | 0.07% | −82,886−34.2% | Reduced |
| Jane Street Group, LLC | 164,105 | $6.02M | 0.01% | +42,566+35.0% | Added |
| Raymond James Financial Inc | 166,914 | $6.12M | 0.00% | +9,025+5.7% | Added |
| AQR Capital Management LLC | 168,890 | $6.20M | 0.01% | −42,274−20.0% | Reduced |
| Bank of America Corp | 169,141 | $6.21M | 0.00% | +116,207+219.5% | Added |
| Panagora Asset Management Inc | 171,988 | $6.31M | 0.03% | +26,674+18.4% | Added |
| Lisanti Capital Growth, LLC | 180,750 | $6.63M | 1.84% | +180,750 | New |
| UBS Group AG | 198,401 | $7.28M | 0.00% | +23,189+13.2% | Added |
| Ghisallo Capital Management LLC | 200,000 | $7.34M | 0.20% | +200,000 | New |
| Algert Global LLC | 205,705 | $7.55M | 0.16% | +110,047+115.0% | Added |
| Emerald Mutual Fund Advisers Trust | 213,914 | $7.85M | 0.48% | +201,317+1,598.1% | Added |