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, Q4 2023
Institutional positions in American Superconductor Corp as of Dec 31, 2023. 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
- 99
- +27 vs. Q3 2023
- Shares held
- 16.2M
- +2.98M (+22.5%) vs. Q3 2023
- Total value
- $180.6M
- +$80.7M (+80.7%) vs. Q3 2023
- New holders
- 34
- 23 more added
- Sold out
- 7
- 27 more reduced
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AWM Investment Company, Inc. | 2,228,301 | $24.8M | 3.27% | +374,060+20.2% | Added |
| Baillie Gifford & Co | 2,086,279 | $23.2M | 0.02% | +594,909+39.9% | Added |
| Vanguard Group Inc | 1,302,120 | $14.5M | 0.00% | +14,855+1.2% | Added |
| Royce & Associates LP | 1,245,860 | $13.9M | 0.13% | −4000.0% | Reduced |
| Invesco Ltd. | 864,914 | $9.64M | 0.00% | −8,092−0.9% | Reduced |
| Dimensional Fund Advisors LP | 683,698 | $7.62M | 0.00% | −8,395−1.2% | Reduced |
| Essex Investment Management Co LLC | 624,018 | $6.95M | 1.37% | −76,815−11.0% | Reduced |
| BlackRock Inc. | 613,300 | $6.83M | 0.00% | +35,555+6.2% | Added |
| D. E. Shaw & Co., Inc. | 435,744 | $4.85M | 0.01% | +61,616+16.5% | Added |
| ArrowMark Colorado Holdings LLC | 431,432 | $4.81M | 0.05% | +50,000+13.1% | Added |
| Millennium Management LLC | 412,767 | $4.60M | 0.00% | −121,348−22.7% | Reduced |
| Oberweis Asset Management Inc | 375,800 | $4.19M | 0.39% | +375,800 | New |
| State Street Corp | 339,357 | $3.78M | 0.00% | +230,865+212.8% | Added |
| Morgan Stanley | 322,770 | $3.60M | 0.00% | +236,454+273.9% | Added |
| Laurion Capital Management LP | 300,323 | $3.35M | 0.12% | +300,323 | New |
| Geode Capital Management, LLC | 294,961 | $3.29M | 0.00% | +5,598+1.9% | Added |
| Citadel Advisors LLC | 262,230 | $2.92M | 0.00% | +141,902+117.9% | Added |
| First Trust Advisors LP | 237,235 | $2.64M | 0.00% | −27,545−10.4% | Reduced |
| Qube Research & Technologies Ltd | 231,634 | $2.58M | 0.01% | +113,091+95.4% | Added |
| Jane Street Group, LLC | 213,499 | $2.38M | 0.00% | +213,499 | New |
| CM Management, LLC | 195,000 | $2.17M | 1.75% | −5,000−2.5% | Reduced |
| Susquehanna International Group, LLP | 172,225 | $1.92M | 0.00% | +79,360+85.5% | Added |
| Bridgeway Capital Management, LLC | 144,700 | $1.61M | 0.03% | +73,500+103.2% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 121,834 | $1.36M | 0.01% | −286−0.2% | Reduced |
| Balyasny Asset Management LLC | 114,047 | $1.27M | 0.00% | +114,047 | New |
| Trexquant Investment LP | 111,825 | $1.25M | 0.03% | −59,055−34.6% | Reduced |
| Marshall Wace, LLP | 105,909 | $1.18M | 0.00% | +105,909 | New |
| Legato Capital Management LLC | 89,667 | $998.9K | 0.13% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 82,389 | $917.8K | 0.03% | +4,490+5.8% | Added |
| Prescott Group Capital Management, L.L.C. | 81,091 | $903.0K | 0.16% | +81,091 | New |
| Graham Capital Management, L.P. | 77,330 | $861.5K | 0.03% | +77,330 | New |
| Cubist Systematic Strategies, LLC | 71,117 | $792.2K | 0.01% | −27,498−27.9% | Reduced |
| ExodusPoint Capital Management, LP | 65,373 | $728.0K | 0.01% | +65,373 | New |
| Man Group plc | 63,248 | $704.6K | 0.00% | +63,248 | New |
| Cambridge Investment Research Advisors, Inc. | 60,250 | $671.0K | 0.00% | −4,607−7.1% | Reduced |
| EAM Investors, LLC | 59,538 | $663.3K | 0.12% | −96,619−61.9% | Reduced |
| Northern Trust Corp | 59,093 | $658.3K | 0.00% | +5,363+10.0% | Added |
| Gsa Capital Partners LLP | 57,784 | $644.0K | 0.05% | −61,091−51.4% | Reduced |
| Barclays PLC | 55,609 | $619.5K | 0.00% | +30,001+117.2% | Added |
| Jump Financial, LLC | 55,409 | $617.3K | 0.02% | −29,891−35.0% | Reduced |
| Bank of America Corp | 51,577 | $574.6K | 0.00% | +11,289+28.0% | Added |
| Goldman Sachs Group Inc | 49,978 | $556.8K | 0.00% | +29,313+141.8% | Added |
| GTS Securities LLC | 43,153 | $480.7K | 0.01% | +24,391+130.0% | Added |
| Cetera Advisors LLC | 41,021 | $457.0K | 0.01% | +41,021 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 40,333 | $440.0K | 0.00% | +40,333 | New |
| Citigroup Inc | 37,353 | $416.1K | 0.00% | +25,212+207.7% | Added |
| Squarepoint Ops LLC | 37,347 | $416.0K | 0.00% | +37,347 | New |
| IMC-Chicago, LLC | 32,369 | $360.6K | 0.01% | +32,369 | New |
| Bank of New York Mellon Corp | 28,189 | $314.0K | 0.00% | −275−1.0% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 28,121 | $313.3K | 0.00% | +2,369+9.2% | Added |
| Royal Bank of Canada | 27,920 | $311.0K | 0.00% | −17,698−38.8% | Reduced |
| Landscape Capital Management, L.L.C. | 27,754 | $309.2K | 0.03% | +27,754 | New |
| Harel Insurance Investments & Financial Services Ltd. | 26,312 | $293.0K | 0.01% | +26,312 | New |
| Assenagon Asset Management S.A. | 25,406 | $283.0K | 0.00% | −23,776−48.3% | Reduced |
| Acadian Asset Management LLC | 25,044 | $278.0K | 0.00% | +25,044 | New |
| 683 Capital Management, LLC | 23,650 | $263.5K | 0.03% | +23,650 | New |
| Bailard, Inc. | 22,200 | $247.3K | 0.01% | +22,200 | New |
| Jefferies Financial Group Inc. | 21,300 | $237.3K | 0.00% | 00.0% | Unchanged |
| Joule Financial, LLC | 20,621 | $229.7K | 0.11% | −1,425−6.5% | Reduced |
| Oppenheimer & Co Inc | 20,200 | $225.0K | 0.00% | +20,200 | New |
| Two Sigma Investments, LP | 18,000 | $200.5K | 0.00% | −146,572−89.1% | Reduced |
| Schonfeld Strategic Advisors LLC | 17,456 | $194.5K | 0.00% | +17,456 | New |
| XTX Topco Ltd | 17,289 | $192.6K | 0.04% | +17,289 | New |
| Price T Rowe Associates Inc | 16,911 | $189.0K | 0.00% | 00.0% | Unchanged |
| TFC Financial Management | 16,471 | $183.5K | 0.04% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 15,966 | $177.9K | 0.00% | 00.0% | Unchanged |
| Atria Wealth Solutions, Inc. | 14,469 | $161.2K | 0.00% | +2,294+18.8% | Added |
| Greenwich Wealth Management LLC | 14,366 | $160.0K | 0.02% | 00.0% | Unchanged |
| ProShare Advisors LLC | 12,325 | $137.3K | 0.00% | +12,325 | New |
| Raymond James Financial Services Advisors, Inc. | 11,845 | $132.0K | 0.00% | −561−4.5% | Reduced |
| LPL Financial LLC | 11,199 | $124.8K | 0.00% | −177−1.6% | Reduced |
| Mirabella Financial Services LLP | 11,180 | $124.5K | 0.02% | +11,180 | New |
| GPS Wealth Strategies Group, LLC | 10,652 | $118.7K | 0.02% | −6,835−39.1% | Reduced |
| Advisor Group Holdings, Inc. | 7,915 | $88.2K | 0.00% | −2,130−21.2% | Reduced |
| AJOVista, LLC | 6,221 | $69.3K | 0.09% | +6,221 | New |
| Point72 Asia (Singapore) Pte. Ltd. | 5,962 | $66.4K | 0.02% | +5,962 | New |
| Creative Planning | 550 | $61.1K | 0.00% | +550 | New |
| Cutler Group LP | 3,306 | $36.0K | 0.01% | −4,131−55.5% | Reduced |
| Psagot Value Holdings Ltd. / (Israel) | 2,917 | $33.0K | 0.01% | +2,917 | New |
| UBS Group AG | 2,715 | $30.2K | 0.00% | +2,472+1,017.3% | Added |
| Global Retirement Partners, LLC | 2,520 | $24.5K | 0.00% | −250−9.0% | Reduced |
| Wells Fargo & Company | 2,096 | $23.3K | 0.00% | −1,394−39.9% | Reduced |
| M&R Capital Management Inc | 2,000 | $22.3K | 0.01% | 00.0% | Unchanged |
| FMR LLC | 1,567 | $17.5K | 0.00% | −100−6.0% | Reduced |
| Rhumbline Advisers | 1,388 | $15.5K | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 540 | $6.02K | 0.00% | 00.0% | Unchanged |
| Wetzel Investment Advisors, Inc. | 500 | $6.00K | 0.00% | +500 | New |
| Tower Research Capital LLC (TRC) | 478 | $5.33K | 0.00% | +478 | New |
| Arrow Financial Corp | 345 | $3.84K | 0.00% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 300 | $3.34K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 150 | $1.67K | 0.00% | +150 | New |
| US Bancorp | 128 | $1.43K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 107 | $1.18K | 0.00% | +107 | New |
| Spire Wealth Management | 64 | $619 | 0.00% | +64 | New |
| Whittier Trust Co of Nevada Inc | 40 | $445 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 30 | $334 | 0.00% | +30 | New |
| JFS Wealth Advisors, LLC | 10 | $112 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 10 | $111 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 10 | $111 | 0.00% | +10 | New |
| GMT Capital Corp | 0 | $0 | 0.00% | −108,066−100.0% | Sold out |