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 2021
Institutional positions in American Superconductor Corp as of Jun 30, 2021. 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
- 105
- +1 vs. Q1 2021
- Shares held
- 16.4M
- +54.9K (+0.3%) vs. Q1 2021
- Total value
- $284.8M
- −$26.4M (−8.5%) vs. Q1 2021
- New holders
- 21
- 31 more added
- Sold out
- 20
- 36 more reduced
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Steward Partners Investment Advisory, LLC | 20 | $0 | 0.00% | −130−86.7% | Reduced |
| FMR LLC | 10 | $0 | 0.00% | +7+233.3% | Added |
| Hudock, Inc. | 4 | $0 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 10 | $0 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 10 | $0 | 0.00% | +10 | New |
| Ellevest, Inc. | 26 | $0 | 0.00% | +26 | New |
| Berman Capital Advisors, LLC | 27 | $0 | 0.00% | +27 | New |
| UBS Group AG | 80 | $1.00K | 0.00% | −31,912−99.7% | Reduced |
| Whittier Trust Co of Nevada Inc | 40 | $1.00K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 85 | $1.00K | 0.00% | +15+21.4% | Added |
| Johnson Financial Group, Inc. | 180 | $3.00K | 0.00% | +64+55.2% | Added |
| Concord Wealth Partners | 160 | $3.00K | 0.00% | +160 | New |
| TCI Wealth Advisors, Inc. | 235 | $4.00K | 0.00% | +235 | New |
| Federation des caisses Desjardins du Quebec | 300 | $5.22K | 0.00% | 00.0% | Unchanged |
| Arcadia Investment Management Corp | 470 | $8.00K | 0.00% | +470 | New |
| Nisa Investment Advisors, LLC | 540 | $9.00K | 0.00% | 00.0% | Unchanged |
| Eaton Vance Management | 500 | $9.00K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 951 | $17.0K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 1,320 | $23.0K | 0.00% | −462−25.9% | Reduced |
| US Bancorp | 1,791 | $31.0K | 0.00% | +1,791 | New |
| Patriot Financial Group Insurance Agency, LLC | 1,963 | $34.0K | 0.01% | +235+13.6% | Added |
| Hoey Investments, Inc | 1,958 | $34.0K | 0.01% | +350+21.8% | Added |
| Legal & General Group Plc | 2,089 | $36.0K | 0.00% | −148−6.6% | Reduced |
| Ameritas Investment Partners, Inc. | 2,255 | $39.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 2,704 | $47.0K | 0.00% | −9,521−77.9% | Reduced |
| Tower Research Capital LLC (TRC) | 3,249 | $56.0K | 0.00% | −3,370−50.9% | Reduced |
| Parallax Volatility Advisers, L.P. | 3,284 | $57.0K | 0.00% | +3,284 | New |
| Barclays PLC | 3,483 | $60.0K | 0.00% | −26,903−88.5% | Reduced |
| Wells Fargo & Company | 4,799 | $83.0K | 0.00% | −307,072−98.5% | Reduced |
| Farmers & Merchants Investments Inc | 5,500 | $96.0K | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 5,738 | $99.0K | 0.01% | +5,738 | New |
| Clearstead Advisors, LLC | 6,500 | $113.0K | 0.01% | 00.0% | Unchanged |
| First Manhattan Co | 6,850 | $119.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 7,133 | $124.0K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 10,830 | $188.3K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 10,907 | $190.0K | 0.00% | −868−7.4% | Reduced |
| Centiva Capital, LP | 11,524 | $200.0K | 0.02% | +11,524 | New |
| Citadel Advisors LLC | 12,371 | $215.0K | 0.00% | +315+2.6% | Added |
| Quadrature Capital Ltd | 12,478 | $217.0K | 0.01% | +12,478 | New |
| Squarepoint Ops LLC | 12,637 | $220.0K | 0.00% | +1,361+12.1% | Added |
| Migdal Insurance & Financial Holdings Ltd. | 12,175 | $222.0K | 0.00% | +4,629+61.3% | Added |
| Morgan Stanley | 12,850 | $223.0K | 0.00% | −88,968−87.4% | Reduced |
| HRT Financial LP | 12,933 | $224.0K | 0.00% | −27,889−68.3% | Reduced |
| Norges Bank | 14,400 | $250.0K | 0.00% | +14,400 | New |
| Bank of America Corp | 14,944 | $260.0K | 0.00% | −30,381−67.0% | Reduced |
| American International Group, Inc. | 15,067 | $262.0K | 0.00% | −621−4.0% | Reduced |
| Manufacturers Life Insurance Company, The | 16,908 | $294.0K | 0.00% | +1,324+8.5% | Added |
| State of Wisconsin Investment Board | 17,400 | $303.0K | 0.00% | +600+3.6% | Added |
| Group One Trading, L.P. | 17,996 | $313.0K | 0.01% | +17,996 | New |
| Advisor Group Holdings, Inc. | 18,256 | $316.0K | 0.00% | +7,806+74.7% | Added |
| Gsa Capital Partners LLP | 19,329 | $336.0K | 0.04% | +19,329 | New |
| Simplex Trading, LLC | 20,197 | $351.0K | 0.01% | +20,197 | New |
| New York State Common Retirement Fund | 21,326 | $371.0K | 0.00% | −3,374−13.7% | Reduced |
| Walleye Capital LLC | 21,740 | $378.0K | 0.01% | +21,740 | New |
| Cubist Systematic Strategies, LLC | 22,174 | $386.0K | 0.00% | +9,336+72.7% | Added |
| TFC Financial Management | 22,550 | $392.0K | 0.13% | 00.0% | Unchanged |
| AQR Capital Management LLC | 24,391 | $424.0K | 0.00% | −3,020−11.0% | Reduced |
| Jane Street Group, LLC | 24,825 | $432.0K | 0.00% | −58,577−70.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 25,837 | $449.0K | 0.00% | −1,340−4.9% | Reduced |
| Royal Bank of Canada | 27,165 | $472.0K | 0.00% | +692+2.6% | Added |
| Rhumbline Advisers | 35,143 | $611.0K | 0.00% | −2,500−6.6% | Reduced |
| Parametric Portfolio Associates LLC | 36,365 | $632.0K | 0.00% | +36,365 | New |
| California State Teachers Retirement System | 36,992 | $643.0K | 0.00% | −3,598−8.9% | Reduced |
| STRS Ohio | 37,800 | $657.0K | 0.00% | +2,300+6.5% | Added |
| FNY Investment Advisers, LLC | 38,259 | $665.0K | 0.27% | −97,008−71.7% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 42,925 | $746.0K | 0.00% | +42,925 | New |
| Engineers Gate Manager LP | 43,779 | $761.0K | 0.05% | −5,486−11.1% | Reduced |
| Two Sigma Advisers, LP | 44,982 | $782.0K | 0.00% | +29,200+185.0% | Added |
| Assenagon Asset Management S.A. | 45,301 | $788.0K | 0.00% | +45,301 | New |
| Two Sigma Investments, LP | 45,757 | $796.0K | 0.00% | −29,901−39.5% | Reduced |
| Goldman Sachs Group Inc | 49,193 | $855.0K | 0.00% | −23,734−32.5% | Reduced |
| Harel Insurance Investments & Financial Services Ltd. | 59,614 | $1.04M | 0.03% | −53,198−47.2% | Reduced |
| Atom Investors LP | 63,921 | $1.11M | 0.23% | +63,921 | New |
| Formula Growth Ltd | 65,000 | $1.13M | 0.16% | −10,000−13.3% | Reduced |
| KBC Group NV | 66,099 | $1.15M | 0.00% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 66,373 | $1.16M | 0.00% | −192−0.3% | Reduced |
| Vontobel Holding Ltd. | 70,328 | $1.28M | 0.01% | +11,063+18.7% | Added |
| Susquehanna International Group, LLP | 79,404 | $1.38M | 0.00% | −66,421−45.5% | Reduced |
| Bank of Montreal | 79,153 | $1.46M | 0.00% | +10,038+14.5% | Added |
| GMT Capital Corp | 108,066 | $1.88M | 0.14% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 117,364 | $2.04M | 0.00% | −5,306−4.3% | Reduced |
| Bank of New York Mellon Corp | 120,061 | $2.09M | 0.00% | −4,644−3.7% | Reduced |
| Baird Financial Group, Inc. | 144,585 | $2.51M | 0.01% | +16,004+12.4% | Added |
| Arosa Capital Management LP | 150,000 | $2.61M | 0.93% | +150,000 | New |
| Millennium Management LLC | 168,779 | $2.94M | 0.00% | +37,049+28.1% | Added |
| Deutsche Bank AG | 169,492 | $2.95M | 0.00% | +93,319+122.5% | Added |
| Alps Advisors Inc | 207,160 | $3.60M | 0.03% | −36,600−15.0% | Reduced |
| ArrowMark Colorado Holdings LLC | 212,000 | $3.69M | 0.03% | +57,000+36.8% | Added |
| Dimensional Fund Advisors LP | 235,486 | $4.10M | 0.00% | −7,914−3.3% | Reduced |
| Northern Trust Corp | 244,164 | $4.25M | 0.00% | −10,522−4.1% | Reduced |
| JPMorgan Chase & Co | 264,966 | $4.61M | 0.00% | +77,259+41.2% | Added |
| Emerald Mutual Fund Advisers Trust | 272,010 | $4.73M | 0.15% | −4,139−1.5% | Reduced |
| First Trust Advisors LP | 329,609 | $5.73M | 0.01% | +5,622+1.7% | Added |
| Renaissance Technologies LLC | 344,554 | $5.99M | 0.01% | −271,921−44.1% | Reduced |
| Erste Asset Management GmbH | 381,670 | $6.97M | 0.14% | −18,330−4.6% | Reduced |
| D. E. Shaw & Co., Inc. | 411,377 | $7.15M | 0.01% | +230,943+128.0% | Added |
| Geode Capital Management, LLC | 439,176 | $7.64M | 0.00% | +14,593+3.4% | Added |
| Royce & Associates LP | 721,574 | $12.5M | 0.09% | +165,000+29.6% | Added |
| AWM Investment Company, Inc. | 854,534 | $14.9M | 1.47% | 00.0% | Unchanged |
| State Street Corp | 999,034 | $17.4M | 0.00% | +38,123+4.0% | Added |