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 2026
Institutional positions in American Superconductor Corp as of Jun 30, 2026. 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
- 277
- +36 vs. Q1 2026
- Shares held
- 35.4M
- +2.30M (+7.0%) vs. Q1 2026
- Total value
- $1.47B
- +$349.0M (+31.1%) vs. Q1 2026
- New holders
- 66
- 108 more added
- Sold out
- 30
- 77 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Great Valley Advisor Group, Inc. | 6,691 | $277.8K | 0.00% | −200−2.9% | Reduced |
| Marex Group plc | 6,900 | $286.4K | 0.00% | +6,900 | New |
| Kingsview Wealth Management, LLC | 6,995 | $290.4K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 7,163 | $298.0K | 0.07% | +7,163 | New |
| Boothbay Fund Management, LLC | 7,414 | $307.8K | 0.01% | +7,414 | New |
| Axq Capital, LP | 7,449 | $309.2K | 0.03% | +218+3.0% | Added |
| Wealth Enhancement Advisory Services, LLC | 8,610 | $309.6K | 0.00% | +2,209+34.5% | Added |
| Barclays PLC | 7,471 | $310.1K | 0.00% | −10,043−57.3% | Reduced |
| Cornerstone Investment Partners, LLC | 7,560 | $313.8K | 0.01% | −442−5.5% | Reduced |
| Kings Path Partners LLC | 7,625 | $316.5K | 0.08% | +7,625 | New |
| Fund Advisors of America Inc | 7,809 | $324.2K | 0.29% | −190−2.4% | Reduced |
| Prudential Financial Inc | 7,860 | $326.3K | 0.00% | +580+8.0% | Added |
| Jones Financial Companies LLLP | 8,637 | $343.1K | 0.00% | +1,478+20.6% | Added |
| ExodusPoint Capital Management, LP | 8,325 | $345.6K | 0.00% | −18,165−68.6% | Reduced |
| Walleye Trading LLC | 8,373 | $347.6K | 0.00% | +3,308+65.3% | Added |
| Morgan Dempsey Capital Management LLC | 8,819 | $366.1K | 0.16% | +309+3.6% | Added |
| Principal Securities, Inc. | 8,975 | $372.6K | 0.00% | −1,393−13.4% | Reduced |
| Catalyst Funds Management Pty Ltd | 9,000 | $373.6K | 0.02% | +9,000 | New |
| ProShare Advisors LLC | 9,680 | $401.8K | 0.00% | −1,275−11.6% | Reduced |
| Vident Advisory, LLC | 9,698 | $402.6K | 0.00% | +9,698 | New |
| TD Asset Management Inc | 9,978 | $414.2K | 0.00% | +9,978 | New |
| Stifel Financial Corp | 9,988 | $414.6K | 0.00% | +9,988 | New |
| Aviva PLC | 10,066 | $417.8K | 0.00% | −4,068−28.8% | Reduced |
| KLP Kapitalforvaltning AS | 10,100 | $419.3K | 0.00% | 00.0% | Unchanged |
| State of Alaska, Department of Revenue | 10,146 | $421.0K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 10,239 | $425.0K | 0.00% | +216+2.2% | Added |
| FMR LLC | 10,354 | $429.8K | 0.00% | −136,939−93.0% | Reduced |
| State Board of Administration of Florida Retirement System | 10,539 | $437.5K | 0.00% | −13,725−56.6% | Reduced |
| Atom Investors LP | 10,696 | $444.0K | 0.04% | +10,696 | New |
| Credit Agricole S A | 10,745 | $446.0K | 0.00% | 00.0% | Unchanged |
| PFG Investments, LLC | 10,755 | $446.4K | 0.02% | −5,075−32.1% | Reduced |
| Retirement Planning Group | 11,000 | $456.6K | 0.01% | +11,000 | New |
| F/M Investments LLC | 11,400 | $473.2K | 0.02% | −5,699−33.3% | Reduced |
| Fox Run Management, L.L.C. | 11,407 | $473.5K | 0.08% | +11,407 | New |
| Dark Forest Capital Management LP | 11,422 | $474.1K | 0.03% | −8,854−43.7% | Reduced |
| Summit Financial, LLC | 11,622 | $482.4K | 0.01% | +1,345+13.1% | Added |
| Vanguard Investments Australia, Ltd. | 11,822 | $490.7K | 0.00% | +1,330+12.7% | Added |
| nVerses Capital, LLC | 11,909 | $494.3K | 0.76% | +11,909 | New |
| IMC-Chicago, LLC | 12,020 | $498.9K | 0.00% | +12,020 | New |
| Arizona State Retirement System | 12,152 | $504.4K | 0.00% | −259−2.1% | Reduced |
| Creative Planning | 12,169 | $505.1K | 0.00% | +2,950+32.0% | Added |
| Assenagon Asset Management S.A. | 12,448 | $516.7K | 0.00% | −6,231−33.4% | Reduced |
| Advisor Group Holdings, Inc. | 12,651 | $525.1K | 0.00% | +2,060+19.5% | Added |
| ROI Financial Advisors, LLC | 12,842 | $533.1K | 0.28% | +2,111+19.7% | Added |
| Cim, LLC | 12,982 | $538.9K | 0.07% | +12,982 | New |
| Group One Trading, L.P. | 13,622 | $565.4K | 0.02% | +1,344+10.9% | Added |
| Police & Firemen's Retirement System of New Jersey | 13,900 | $577.0K | 0.00% | +1,226+9.7% | Added |
| Inspire Advisors, LLC | 14,450 | $599.4K | 0.04% | +14,450 | New |
| Globeflex Capital L P | 14,510 | $602.3K | 0.08% | −7,123−32.9% | Reduced |
| Commonwealth Equity Services, LLC | 15,044 | $624.5K | 0.00% | +4,251+39.4% | Added |
| Andrew Hill Investment Advisors, Inc. | 15,496 | $643.3K | 0.48% | +15,496 | New |
| Virtu Financial LLC | 15,658 | $650.0K | 0.02% | +15,658 | New |
| Advisory Services Network, LLC | 15,793 | $655.6K | 0.01% | −884−5.3% | Reduced |
| Voya Investment Management LLC | 15,902 | $660.1K | 0.00% | +1,660+11.7% | Added |
| Schnieders Capital Management, LLC. | 16,054 | $666.4K | 0.09% | +16,054 | New |
| Verity Asset Management, Inc. | 16,246 | $674.4K | 0.26% | −6,034−27.1% | Reduced |
| Central Pacific Bank - Trust Division | 16,266 | $675.2K | 0.07% | +7,091+77.3% | Added |
| Traynor Capital Management, Inc. | 16,489 | $684.5K | 0.03% | +280+1.7% | Added |
| Simplex Trading, LLC | 16,533 | $686.3K | 0.02% | +16,533 | New |
| Truvestments Capital LLC | 16,567 | $687.7K | 0.10% | −305−1.8% | Reduced |
| TFC Financial Management | 16,787 | $696.8K | 0.08% | +46+0.3% | Added |
| Quantinno Capital Management LP | 17,067 | $708.5K | 0.00% | +4,065+31.3% | Added |
| Intech Investment Management LLC | 18,079 | $750.5K | 0.01% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 18,455 | $766.1K | 0.00% | −1,039−5.3% | Reduced |
| Mariner, LLC | 18,751 | $778.5K | 0.00% | −6,399−25.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 19,427 | $806.4K | 0.00% | +4,305+28.5% | Added |
| Ardsley Advisory Partners LP | 20,000 | $830.2K | 0.09% | −5,000−20.0% | Reduced |
| Jupiter Topco LLC | 20,134 | $836.0K | 0.00% | +20,134 | New |
| Manufacturers Life Insurance Company, The | 20,426 | $847.9K | 0.00% | −402−1.9% | Reduced |
| Citadel Advisors LLC | 20,528 | $852.1K | 0.00% | −196,185−90.5% | Reduced |
| Dorsey & Whitney Trust CO LLC | 21,611 | $897.1K | 0.04% | 00.0% | Unchanged |
| State of New Jersey Common Pension Fund D | 21,666 | $899.4K | 0.00% | +21,666 | New |
| Diversified Trust Co | 23,878 | $991.2K | 0.02% | +9,942+71.3% | Added |
| KBC Group NV | 24,078 | $999.0K | 0.00% | +22,465+1,392.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 24,343 | $1.01M | 0.00% | +2,095+9.4% | Added |
| Round Rock Advisors, LLC | 26,431 | $1.10M | 0.14% | +6,091+29.9% | Added |
| MetLife Investment Management | 27,526 | $1.14M | 0.01% | +1,835+7.1% | Added |
| HighTower Advisors, LLC | 28,498 | $1.18M | 0.00% | −14,769−34.1% | Reduced |
| Virtus ETF Advisers LLC | 28,501 | $1.18M | 0.45% | +1,049+3.8% | Added |
| Portolan Capital Management, LLC | 29,314 | $1.22M | 0.05% | −266,322−90.1% | Reduced |
| Oppenheimer & Co Inc | 30,060 | $1.25M | 0.01% | +4,776+18.9% | Added |
| XTX Topco Ltd | 30,848 | $1.28M | 0.02% | +30,848 | New |
| Kornitzer Capital Management Inc | 31,669 | $1.31M | 0.03% | −3,304−9.4% | Reduced |
| Aquatic Capital Management LLC | 32,081 | $1.33M | 0.05% | +32,081 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 32,145 | $1.33M | 0.00% | +19,246+149.2% | Added |
| Vanguard Asset Management, Ltd | 32,589 | $1.35M | 0.00% | +3,301+11.3% | Added |
| Citigroup Inc | 32,598 | $1.35M | 0.00% | +27,709+566.8% | Added |
| Truist Financial Corp | 32,700 | $1.36M | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 33,360 | $1.38M | 0.00% | +3,882+13.2% | Added |
| Colony Group, LLC | 33,671 | $1.40M | 0.00% | +410+1.2% | Added |
| Quantum Private Wealth, LLC | 33,823 | $1.40M | 0.36% | +2,600+8.3% | Added |
| Polymer Capital Management (US) LLC | 34,521 | $1.43M | 0.21% | +34,521 | New |
| Merit Financial Group, LLC | 35,471 | $1.47M | 0.01% | −1,447−3.9% | Reduced |
| Royal Bank of Canada | 35,656 | $1.48M | 0.00% | +4,320+13.8% | Added |
| Quadrature Capital Ltd | 37,682 | $1.56M | 0.01% | −1,458−3.7% | Reduced |
| Nissay Asset Management Corp | 37,914 | $1.57M | 0.01% | +12,527+49.3% | Added |
| Covestor Ltd | 41,348 | $1.72M | 0.99% | +41,344+1,033,600.0% | Added |
| Legato Capital Management LLC | 41,369 | $1.72M | 0.14% | +1,248+3.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 42,728 | $1.77M | 0.00% | +3,926+10.1% | Added |
| Alliancebernstein L.P. | 54,720 | $1.85M | 0.00% | +10,300+23.2% | Added |