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 2021
Institutional positions in American Superconductor Corp as of Sep 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
- 101
- −4 vs. Q2 2021
- Shares held
- 16.7M
- +301.0K (+1.8%) vs. Q2 2021
- Total value
- $243.3M
- −$42.7M (−14.9%) vs. Q2 2021
- New holders
- 16
- 38 more added
- Sold out
- 20
- 26 more reduced
Compare with Q2 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 | $953.6M |
| 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, Q3 2021
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invesco Ltd. | 2,069,009 | $30.2M | 0.01% | −235,781−10.2% | Reduced |
| BlackRock Inc. | 1,890,029 | $27.6M | 0.00% | +33,624+1.8% | Added |
| Baillie Gifford & Co | 1,491,370 | $21.7M | 0.01% | +211,970+16.6% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,347,241 | $19.6M | 0.07% | +47,347+3.6% | Added |
| Vanguard Group Inc | 1,200,535 | $17.5M | 0.00% | +8,261+0.7% | Added |
| State Street Corp | 1,007,037 | $14.7M | 0.00% | +8,003+0.8% | Added |
| AWM Investment Company, Inc. | 854,534 | $12.5M | 1.22% | 00.0% | Unchanged |
| Royce & Associates LP | 721,574 | $10.5M | 0.08% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 508,251 | $7.41M | 0.01% | +96,874+23.5% | Added |
| Geode Capital Management, LLC | 504,436 | $7.35M | 0.00% | +65,260+14.9% | Added |
| AIGH Capital Management LLC | 395,487 | $5.77M | 1.63% | +395,487 | New |
| Erste Asset Management GmbH | 381,670 | $5.18M | 0.10% | 00.0% | Unchanged |
| ArrowMark Colorado Holdings LLC | 335,000 | $4.88M | 0.04% | +123,000+58.0% | Added |
| First Trust Advisors LP | 317,451 | $4.63M | 0.00% | −12,158−3.7% | Reduced |
| Arosa Capital Management LP | 290,000 | $4.23M | 1.49% | +140,000+93.3% | Added |
| Millennium Management LLC | 248,184 | $3.62M | 0.00% | +79,405+47.0% | Added |
| Northern Trust Corp | 246,727 | $3.60M | 0.00% | +2,563+1.0% | Added |
| Alps Advisors Inc | 239,081 | $3.49M | 0.03% | +31,921+15.4% | Added |
| Dimensional Fund Advisors LP | 222,381 | $3.24M | 0.00% | −13,105−5.6% | Reduced |
| Goldman Sachs Group Inc | 213,921 | $3.12M | 0.00% | +164,728+334.9% | Added |
| Baird Financial Group, Inc. | 206,849 | $3.02M | 0.01% | +62,264+43.1% | Added |
| Deutsche Bank AG | 140,274 | $2.04M | 0.00% | −29,218−17.2% | Reduced |
| Bank of New York Mellon Corp | 129,103 | $1.88M | 0.00% | +9,042+7.5% | Added |
| GMT Capital Corp | 108,066 | $1.58M | 0.14% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 113,461 | $1.54M | 0.00% | −3,903−3.3% | Reduced |
| Natixis | 100,000 | $1.46M | 0.01% | +100,000 | New |
| Worth Venture Partners, LLC | 90,681 | $1.32M | 0.60% | +90,681 | New |
| Gsa Capital Partners LLP | 81,176 | $1.18M | 0.12% | +61,847+320.0% | Added |
| JPMorgan Chase & Co | 81,011 | $1.18M | 0.00% | −183,955−69.4% | Reduced |
| Susquehanna International Group, LLP | 80,537 | $1.17M | 0.00% | +1,133+1.4% | Added |
| Charles Schwab Investment Management Inc | 69,351 | $1.01M | 0.00% | +2,978+4.5% | Added |
| KBC Group NV | 66,099 | $964.0K | 0.00% | −66,099−50.0% | Reduced |
| Formula Growth Ltd | 65,000 | $948.0K | 0.14% | 00.0% | Unchanged |
| Harel Insurance Investments & Financial Services Ltd. | 57,895 | $844.0K | 0.02% | −1,719−2.9% | Reduced |
| Royal Bank of Canada | 47,135 | $688.0K | 0.00% | +19,970+73.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 46,132 | $673.0K | 0.00% | +3,207+7.5% | Added |
| Citadel Advisors LLC | 44,852 | $654.0K | 0.00% | +32,481+262.6% | Added |
| Renaissance Technologies LLC | 43,808 | $639.0K | 0.00% | −300,746−87.3% | Reduced |
| Assenagon Asset Management S.A. | 39,068 | $570.0K | 0.00% | −6,233−13.8% | Reduced |
| Two Sigma Advisers, LP | 38,982 | $568.0K | 0.00% | −6,000−13.3% | Reduced |
| Rhumbline Advisers | 36,523 | $533.0K | 0.00% | +1,380+3.9% | Added |
| CM Management, LLC | 30,000 | $437.0K | 0.33% | +30,000 | New |
| HRT Financial LP | 27,701 | $403.0K | 0.00% | +14,768+114.2% | Added |
| Parametric Portfolio Associates LLC | 27,551 | $402.0K | 0.00% | −8,814−24.2% | Reduced |
| Simplex Trading, LLC | 21,497 | $382.0K | 0.01% | +1,300+6.4% | Added |
| Cambridge Investment Research Advisors, Inc. | 25,819 | $376.0K | 0.00% | −18−0.1% | Reduced |
| FNY Investment Advisers, LLC | 25,500 | $371.0K | 0.17% | −12,759−33.3% | Reduced |
| TFC Financial Management | 22,550 | $329.0K | 0.11% | 00.0% | Unchanged |
| STRS Ohio | 22,100 | $322.0K | 0.00% | −15,700−41.5% | Reduced |
| Morgan Stanley | 22,081 | $322.0K | 0.00% | +9,231+71.8% | Added |
| Bank of America Corp | 21,579 | $314.0K | 0.00% | +6,635+44.4% | Added |
| New York State Common Retirement Fund | 21,277 | $310.0K | 0.00% | −49−0.2% | Reduced |
| Tatro Capital, LLC | 18,492 | $270.0K | 0.21% | +18,492 | New |
| SG Americas Securities, LLC | 16,653 | $243.0K | 0.00% | +16,653 | New |
| Manufacturers Life Insurance Company, The | 16,387 | $239.0K | 0.00% | −521−3.1% | Reduced |
| Two Sigma Investments, LP | 15,557 | $227.0K | 0.00% | −30,200−66.0% | Reduced |
| American International Group, Inc. | 15,115 | $220.0K | 0.00% | +48+0.3% | Added |
| California State Teachers Retirement System | 14,491 | $211.0K | 0.00% | −22,501−60.8% | Reduced |
| Vontobel Holding Ltd. | 14,000 | $204.0K | 0.00% | −56,328−80.1% | Reduced |
| Alpha Paradigm Partners, LLC | 13,594 | $198.0K | 0.08% | +13,594 | New |
| Barclays PLC | 13,433 | $195.0K | 0.00% | +9,950+285.7% | Added |
| Advisor Group Holdings, Inc. | 12,551 | $182.0K | 0.00% | −5,705−31.3% | Reduced |
| Migdal Insurance & Financial Holdings Ltd. | 13,191 | $179.0K | 0.00% | +1,016+8.3% | Added |
| Voya Investment Management LLC | 10,907 | $159.0K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 10,830 | $157.9K | 0.00% | 00.0% | Unchanged |
| F3Logic, LLC | 10,500 | $153.0K | 0.02% | +10,500 | New |
| Investors Asset Management of Georgia Inc | 10,400 | $152.0K | 0.08% | +10,400 | New |
| Group One Trading, L.P. | 9,046 | $132.0K | 0.00% | −8,950−49.7% | Reduced |
| Gerber Kawasaki Wealth & Investment Management | 8,000 | $116.0K | 0.01% | +8,000 | New |
| Metropolitan Life Insurance Co | 7,422 | $108.2K | 0.00% | +289+4.1% | Added |
| BNP Paribas Arbitrage, SA | 7,137 | $104.1K | 0.00% | +4,433+163.9% | Added |
| Clearstead Advisors, LLC | 6,500 | $95.0K | 0.01% | 00.0% | Unchanged |
| Farmers & Merchants Investments Inc | 5,500 | $80.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 5,144 | $75.0K | 0.00% | +345+7.2% | Added |
| Citigroup Inc | 3,791 | $55.0K | 0.00% | +2,471+187.2% | Added |
| Global Retirement Partners, LLC | 3,595 | $52.0K | 0.01% | +3,595 | New |
| UBS Group AG | 3,312 | $49.0K | 0.00% | +3,232+4,040.0% | Added |
| Cutler Group LP | 2,506 | $36.0K | 0.00% | −3,232−56.3% | Reduced |
| Ameritas Investment Partners, Inc. | 2,255 | $33.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 2,276 | $33.0K | 0.00% | +187+9.0% | Added |
| Patriot Financial Group Insurance Agency, LLC | 1,963 | $29.0K | 0.01% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,034 | $15.0K | 0.00% | −2,215−68.2% | Reduced |
| Northwestern Mutual Wealth Management Co | 951 | $14.0K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 850 | $12.0K | 0.00% | −6,000−87.6% | Reduced |
| US Bancorp | 744 | $11.0K | 0.00% | −1,047−58.5% | Reduced |
| Koshinski Asset Management, Inc. | 600 | $8.75K | 0.00% | +600 | New |
| Nisa Investment Advisors, LLC | 540 | $8.00K | 0.00% | 00.0% | Unchanged |
| Eaton Vance Management | 500 | $7.00K | 0.00% | 00.0% | Unchanged |
| Arcadia Investment Management Corp | 470 | $7.00K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 300 | $4.37K | 0.00% | 00.0% | Unchanged |
| McCarthy Asset Management, Inc. | 250 | $4.00K | 0.00% | +250 | New |
| TCI Wealth Advisors, Inc. | 235 | $3.00K | 0.00% | 00.0% | Unchanged |
| Johnson Financial Group, Inc. | 226 | $3.00K | 0.00% | +46+25.6% | Added |
| Captrust Financial Advisors | 112 | $2.00K | 0.00% | +27+31.8% | Added |
| Ellevest, Inc. | 121 | $2.00K | 0.00% | +95+365.4% | Added |
| Raffa Wealth Management, LLC | 124 | $1.81K | 0.00% | +124 | New |
| Whittier Trust Co of Nevada Inc | 40 | $1.00K | 0.00% | 00.0% | Unchanged |
| Meridian Wealth Partners, LLC | 96 | $1.00K | 0.00% | +96 | New |
| Hudock, Inc. | 4 | $0 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 10 | $0 | 0.00% | 00.0% | Unchanged |