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, Q1 2023
Institutional positions in American Superconductor Corp as of Mar 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
- 74
- −2 vs. Q4 2022
- Shares held
- 13.1M
- −4.56K (0.0%) vs. Q4 2022
- Total value
- $64.6M
- +$16.2M (+33.5%) vs. Q4 2022
- New holders
- 12
- 22 more added
- Sold out
- 14
- 20 more reduced
1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AWM Investment Company, Inc. | 2,536,283 | $12.5M | 1.69% | 00.0% | Unchanged |
| Royce & Associates LP | 1,811,771 | $8.90M | 0.09% | +147,800+8.9% | Added |
| Baillie Gifford & Co | 1,491,370 | $7.32M | 0.01% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,243,546 | $6.11M | 0.00% | +149,382+13.7% | Added |
| Invesco Ltd. | 835,037 | $4.10M | 0.00% | −179,806−17.7% | Reduced |
| KBC Group NV | 632,089 | $3.10M | 0.01% | +150,720+31.3% | Added |
| ArrowMark Colorado Holdings LLC | 569,432 | $2.80M | 0.03% | +5,432+1.0% | Added |
| Dimensional Fund Advisors LP | 505,391 | $2.48M | 0.00% | +44,139+9.6% | Added |
| BlackRock Inc. | 478,804 | $2.35M | 0.00% | −41,435−8.0% | Reduced |
| CM Management, LLC | 350,000 | $1.72M | 2.04% | +20,000+6.1% | Added |
| D. E. Shaw & Co., Inc. | 338,070 | $1.66M | 0.00% | −126,409−27.2% | Reduced |
| Geode Capital Management, LLC | 288,751 | $1.42M | 0.00% | +10,524+3.8% | Added |
| First Trust Advisors LP | 261,526 | $1.28M | 0.00% | +6,189+2.4% | Added |
| Gsa Capital Partners LLP | 196,323 | $964.0K | 0.10% | +65,945+50.6% | Added |
| Susquehanna International Group, LLP | 141,979 | $697.1K | 0.00% | +76,992+118.5% | Added |
| State Street Corp | 108,796 | $534.2K | 0.00% | +16,100+17.4% | Added |
| GMT Capital Corp | 108,066 | $530.6K | 0.02% | +108,066 | New |
| Bridgeway Capital Management, LLC | 91,200 | $447.8K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 89,938 | $442.0K | 0.00% | −162,049−64.3% | Reduced |
| Merit Financial Group, LLC | 74,954 | $368.0K | 0.01% | 00.0% | Unchanged |
| Quinn Opportunity Partners LLC | 62,661 | $307.7K | 0.03% | +62,661 | New |
| Renaissance Technologies LLC | 56,600 | $278.0K | 0.00% | −45,589−44.6% | Reduced |
| Group One Trading, L.P. | 55,423 | $272.1K | 0.01% | +7,167+14.9% | Added |
| Morgan Stanley | 54,914 | $269.6K | 0.00% | −3,403−5.8% | Reduced |
| Jane Street Group, LLC | 54,074 | $265.5K | 0.00% | +19,032+54.3% | Added |
| Northern Trust Corp | 52,743 | $259.0K | 0.00% | +2,430+4.8% | Added |
| Citadel Advisors LLC | 47,176 | $231.6K | 0.00% | +4,083+9.5% | Added |
| Millennium Management LLC | 40,459 | $199.0K | 0.00% | −73,433−64.5% | Reduced |
| Royal Bank of Canada | 40,384 | $198.0K | 0.00% | −2,810−6.5% | Reduced |
| Price T Rowe Associates Inc | 40,100 | $197.0K | 0.00% | 00.0% | Unchanged |
| Journey Strategic Wealth LLC | 37,375 | $183.5K | 0.02% | +2,375+6.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 31,481 | $154.6K | 0.00% | −19,149−37.8% | Reduced |
| Bank of New York Mellon Corp | 28,890 | $141.8K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 24,816 | $121.8K | 0.00% | +24,816 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 22,610 | $111.0K | 0.00% | −1,085−4.6% | Reduced |
| Joule Financial, LLC | 21,185 | $104.0K | 0.06% | −47−0.2% | Reduced |
| Barclays PLC | 20,693 | $101.6K | 0.00% | +20,689+517,225.0% | Added |
| State of Wisconsin Investment Board | 20,500 | $100.7K | 0.00% | −29,500−59.0% | Reduced |
| Prescott Group Capital Management, L.L.C. | 20,200 | $99.0K | 0.02% | +20,200 | New |
| Tower Research Capital LLC (TRC) | 18,812 | $92.0K | 0.00% | +10,841+136.0% | Added |
| HRT Financial LP | 18,324 | $89.0K | 0.00% | +18,324 | New |
| Jump Financial, LLC | 17,815 | $87.5K | 0.00% | −1,085−5.7% | Reduced |
| Squarepoint Ops LLC | 16,818 | $82.6K | 0.00% | +16,818 | New |
| Bank of America Corp | 16,762 | $82.3K | 0.00% | −44,383−72.6% | Reduced |
| TFC Financial Management | 16,471 | $80.9K | 0.02% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 15,966 | $78.4K | 0.00% | +15,966 | New |
| Atria Wealth Solutions, Inc. | 15,085 | $74.1K | 0.00% | −650−4.1% | Reduced |
| Man Group plc | – | $72.7K | 0.00% | – | – |
| Simplex Trading, LLC | 14,846 | $72.0K | 0.00% | +3,211+27.6% | Added |
| Raymond James Financial Services Advisors, Inc. | 14,509 | $71.2K | 0.00% | −887−5.8% | Reduced |
| Greenwich Wealth Management LLC | 14,366 | $71.0K | 0.01% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 14,404 | $70.7K | 0.00% | +3,406+31.0% | Added |
| Vontobel Holding Ltd. | 14,000 | $68.7K | 0.00% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 12,387 | $61.0K | 0.00% | +12,387 | New |
| Quadrature Capital Ltd | 10,315 | $50.9K | 0.00% | +10,315 | New |
| FMR LLC | 6,390 | $31.4K | 0.00% | +6,167+2,765.5% | Added |
| Advisor Group Holdings, Inc. | 3,525 | $17.3K | 0.00% | −40−1.1% | Reduced |
| Global Retirement Partners, LLC | 4,360 | $17.1K | 0.00% | 00.0% | Unchanged |
| M&R Capital Management Inc | 2,000 | $9.82K | 0.00% | 00.0% | Unchanged |
| Point72 Middle East FZE | 1,503 | $7.38K | 0.00% | +1,503 | New |
| Wells Fargo & Company | 1,434 | $7.04K | 0.00% | +5+0.3% | Added |
| Tilia Fiduciary Partners, Inc. | 1,100 | $5.40K | 0.01% | 00.0% | Unchanged |
| Johnson Financial Group, Inc. | 992 | $4.87K | 0.00% | 00.0% | Unchanged |
| Slow Capital, Inc. | 931 | $4.57K | 0.00% | +931 | New |
| Nisa Investment Advisors, LLC | 540 | $3.00K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 350 | $1.72K | 0.00% | −150−30.0% | Reduced |
| Federation des caisses Desjardins du Quebec | 300 | $1.47K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 241 | $1.18K | 0.00% | −150−38.4% | Reduced |
| UBS Group AG | 193 | $948 | 0.00% | −10,793−98.2% | Reduced |
| US Bancorp | 128 | $628 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 40 | $196 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 10 | $67 | 0.00% | +10 | New |
| JFS Wealth Advisors, LLC | 10 | $50 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 10 | $49 | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −69,669−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −67,870−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −32,265−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −29,800−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −24,004−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −21,177−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −16,241−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −7,241−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −5,890−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Bartlett & Co. Wealth Management LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| Massmutual Trust Co FSB | 0 | $0 | 0.00% | −50−100.0% | Sold out |
| Bartlett & Co. LLC | 0 | $0 | 0.00% | −36−100.0% | Sold out |
| CoreCap Advisors, LLC | – | – | – | – | Not filed |