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 2025
Institutional positions in American Superconductor Corp as of Sep 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
- 273
- +43 vs. Q2 2025
- Shares held
- 32.7M
- +6.83K (0.0%) vs. Q2 2025
- Total value
- $1.94B
- +$741.3M (+61.8%) vs. Q2 2025
- New holders
- 72
- 93 more added
- Sold out
- 29
- 81 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Scientech Research LLC | 6,585 | $391.1K | 0.14% | +6,585 | New |
| Great Valley Advisor Group, Inc. | 6,741 | $400.5K | 0.01% | −494−6.8% | Reduced |
| Baader Bank INC | 7,063 | $418.0K | 0.03% | +7,063 | New |
| Creative Planning | 7,044 | $418.3K | 0.00% | +1,363+24.0% | Added |
| Axq Capital, LP | 7,667 | $455.3K | 0.17% | +7,667 | New |
| Principal Securities, Inc. | 7,948 | $472.0K | 0.01% | +863+12.2% | Added |
| Nissay Asset Management Corp | 8,065 | $479.0K | 0.00% | +8,065 | New |
| Counterpoint Mutual Funds LLC | 8,206 | $487.4K | 0.04% | −3,667−30.9% | Reduced |
| CWM, LLC | 8,472 | $503.0K | 0.00% | +1,323+18.5% | Added |
| Stephens Inc | 8,500 | $504.8K | 0.01% | +500+6.3% | Added |
| ProShare Advisors LLC | 8,634 | $512.8K | 0.00% | −941−9.8% | Reduced |
| Ensign Peak Advisors, Inc | 8,850 | $525.6K | 0.00% | +8,850 | New |
| HSBC Holdings PLC | 8,957 | $531.9K | 0.00% | −14,053−61.1% | Reduced |
| Integrated Quantitative Investments LLC | 9,333 | $554.3K | 0.16% | −2,451−20.8% | Reduced |
| KLP Kapitalforvaltning AS | 9,400 | $558.3K | 0.00% | 00.0% | Unchanged |
| ROI Financial Advisors, LLC | 9,419 | $559.4K | 0.33% | +2,298+32.3% | Added |
| Diversified Trust Co | 9,500 | $564.2K | 0.01% | +876+10.2% | Added |
| GWM Advisors LLC | 9,641 | $572.6K | 0.00% | +9,104+1,695.3% | Added |
| Kestra Advisory Services, LLC | 9,913 | $588.7K | 0.00% | −912−8.4% | Reduced |
| Assenagon Asset Management S.A. | 10,031 | $595.7K | 0.00% | +3,807+61.2% | Added |
| Sigma Planning Corp | 10,293 | $611.3K | 0.02% | +10,293 | New |
| Entropy Technologies, LP | 10,401 | $617.7K | 0.05% | +1,504+16.9% | Added |
| Omers Administration Corp | 10,700 | $635.5K | 0.00% | +10,700 | New |
| Citigroup Inc | 11,094 | $658.9K | 0.00% | −15,612−58.5% | Reduced |
| GPS Wealth Strategies Group, LLC | 11,437 | $679.2K | 0.07% | +1,135+11.0% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 11,808 | $701.3K | 0.00% | −1,331−10.1% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 12,067 | $716.7K | 0.01% | +3,290+37.5% | Added |
| Arizona State Retirement System | 12,883 | $765.1K | 0.00% | +442+3.6% | Added |
| Ieq Capital, LLC | 12,889 | $765.5K | 0.00% | +12,889 | New |
| Teacher Retirement System of Texas | 13,148 | $780.9K | 0.00% | +7,163+119.7% | Added |
| Mariner, LLC | 13,227 | $785.6K | 0.00% | +932+7.6% | Added |
| Neo Ivy Capital Management | 13,520 | $803.0K | 0.20% | +13,520 | New |
| Truvestments Capital LLC | 13,530 | $803.5K | 0.15% | +641+5.0% | Added |
| Commonwealth Equity Services, LLC | 13,905 | $826.0K | 0.00% | +131+1.0% | Added |
| Voya Investment Management LLC | 14,229 | $845.1K | 0.00% | −5,822−29.0% | Reduced |
| Two Sigma Advisers, LP | 14,400 | $855.2K | 0.00% | +14,400 | New |
| Citadel Advisors LLC | 14,821 | $880.2K | 0.00% | −674,870−97.9% | Reduced |
| Gsa Capital Partners LLP | 15,798 | $938.0K | 0.08% | +8,325+111.4% | Added |
| Schonfeld Strategic Advisors LLC | 16,110 | $956.8K | 0.01% | +16,110 | New |
| Man Group plc | 16,114 | $957.0K | 0.00% | −2,789−14.8% | Reduced |
| STRS Ohio | 16,400 | $974.0K | 0.00% | −3,200−16.3% | Reduced |
| Traynor Capital Management, Inc. | 16,410 | $974.6K | 0.06% | +16,410 | New |
| Advisory Services Network, LLC | 16,529 | $981.7K | 0.01% | −250−1.5% | Reduced |
| TFC Financial Management | 16,842 | $1.00M | 0.13% | +111+0.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 17,806 | $1.06M | 0.00% | +2,890+19.4% | Added |
| GoalVest Advisory LLC | 18,400 | $1.09M | 0.23% | 00.0% | Unchanged |
| Comerica Bank | 18,808 | $1.12M | 0.00% | +13,147+232.2% | Added |
| Fox Run Management, L.L.C. | 18,861 | $1.12M | 0.17% | −18,644−49.7% | Reduced |
| Ameriprise Financial Inc | 19,021 | $1.13M | 0.00% | +19,021 | New |
| Hennion & Walsh Asset Management, Inc. | 19,711 | $1.17M | 0.04% | +4,415+28.9% | Added |
| Intech Investment Management LLC | 20,007 | $1.19M | 0.01% | −6,351−24.1% | Reduced |
| Oppenheimer & Co Inc | 20,100 | $1.19M | 0.01% | −23,495−53.9% | Reduced |
| Credit Agricole S A | 21,535 | $1.28M | 0.00% | +21,535 | New |
| Dorsey & Whitney Trust CO LLC | 21,611 | $1.28M | 0.07% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 22,393 | $1.33M | 0.00% | +14,657+189.5% | Added |
| Manufacturers Life Insurance Company, The | 22,607 | $1.34M | 0.00% | +8,902+65.0% | Added |
| Dark Forest Capital Management LP | 23,858 | $1.42M | 0.05% | −10,889−31.3% | Reduced |
| State Board of Administration of Florida Retirement System | 24,264 | $1.44M | 0.00% | +3,615+17.5% | Added |
| IMC-Chicago, LLC | 25,044 | $1.49M | 0.03% | +6,435+34.6% | Added |
| MetLife Investment Management | 25,405 | $1.51M | 0.01% | +25,405 | New |
| Truist Financial Corp | 25,500 | $1.51M | 0.00% | +3,230+14.5% | Added |
| Los Angeles Capital Management LLC | 25,637 | $1.52M | 0.01% | +944+3.8% | Added |
| Virtus ETF Advisers LLC | 25,990 | $1.54M | 0.85% | +1,175+4.7% | Added |
| Quantbot Technologies LP | 26,831 | $1.59M | 0.04% | +19,329+257.7% | Added |
| Quantum Private Wealth, LLC | 29,223 | $1.74M | 0.51% | +1,800+6.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 30,067 | $1.79M | 0.00% | +5,367+21.7% | Added |
| SG Americas Securities, LLC | 31,823 | $1.89M | 0.01% | +24,231+319.2% | Added |
| Merit Financial Group, LLC | 31,855 | $1.89M | 0.02% | −18,040−36.2% | Reduced |
| Colony Group, LLC | 32,919 | $1.95M | 0.00% | +32,919 | New |
| Kornitzer Capital Management Inc | 33,000 | $1.96M | 0.04% | −3,660−10.0% | Reduced |
| Point72 Asset Management, L.P. | 33,223 | $1.97M | 0.00% | −12,436−27.2% | Reduced |
| Wolverine Trading, LLC | 33,287 | $2.03M | 0.04% | +33,287 | New |
| Mackenzie Financial Corp | 34,289 | $2.04M | 0.00% | −15,481−31.1% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 35,077 | $2.08M | 0.01% | +129+0.4% | Added |
| HWG Holdings LP | 35,468 | $2.11M | 0.53% | +35,468 | New |
| Deutsche Bank AG | 36,134 | $2.15M | 0.00% | +8,490+30.7% | Added |
| Private Advisor Group, LLC | 37,683 | $2.24M | 0.01% | +37,683 | New |
| Alliancebernstein L.P. | 39,320 | $2.34M | 0.00% | +3,600+10.1% | Added |
| Janus Henderson Group PLC | 39,350 | $2.34M | 0.00% | −7,411−15.8% | Reduced |
| Principal Financial Group Inc | 39,403 | $2.34M | 0.00% | +39,403 | New |
| Victory Capital Management Inc | 41,389 | $2.46M | 0.00% | +41,389 | New |
| Amundi | 41,730 | $2.54M | 0.00% | −2,165−4.9% | Reduced |
| Royal Bank of Canada | 43,363 | $2.58M | 0.00% | +11,862+37.7% | Added |
| Janney Montgomery Scott LLC | 45,731 | $2.72M | 0.01% | −30−0.1% | Reduced |
| Group One Trading, L.P. | 46,903 | $2.79M | 0.08% | +39,604+542.6% | Added |
| Polen Capital Management LLC | 47,291 | $2.81M | 0.01% | +70+0.1% | Added |
| LPL Financial LLC | 48,693 | $2.89M | 0.00% | +12,423+34.3% | Added |
| Cubist Systematic Strategies, LLC | 49,508 | $2.94M | 0.04% | +21,778+78.5% | Added |
| California State Teachers Retirement System | 50,677 | $3.01M | 0.00% | −92−0.2% | Reduced |
| Aquatic Capital Management LLC | 53,873 | $3.20M | 0.06% | +20,848+63.1% | Added |
| Penserra Capital Management LLC | 57,728 | $3.43M | 0.04% | −10,584−15.5% | Reduced |
| Legato Capital Management LLC | 58,848 | $3.49M | 0.38% | −19,714−25.1% | Reduced |
| Rice Hall James & Associates, LLC | 60,724 | $3.61M | 0.20% | −34,007−35.9% | Reduced |
| Barclays PLC | 62,563 | $3.72M | 0.00% | −17,798−22.1% | Reduced |
| BNP Paribas Arbitrage, SA | 63,009 | $3.74M | 0.00% | +55,208+707.7% | Added |
| Kennedy Capital Management, Inc. | 64,601 | $3.84M | 0.08% | −81,608−55.8% | Reduced |
| Campbell Newman Asset Management Inc | 65,365 | $3.88M | 0.28% | +354+0.5% | Added |
| Capital Fund Management S.A. | 65,535 | $3.89M | 0.04% | −46,810−41.7% | Reduced |
| SEI Investments Co | 66,198 | $3.93M | 0.00% | +24,125+57.3% | Added |
| Alps Advisors Inc | 66,325 | $3.94M | 0.02% | +1,682+2.6% | Added |