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 2025
Institutional positions in American Superconductor Corp as of Sep 30, 2025. 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
- 273
- +43 vs. Q2 2025
- Shares held
- 32.7M
- +6.83K (0.0%) vs. Q2 2025
- Total value
- $1.94B
- +$741.3M (+61.8%) vs. Q2 2025
- New holders
- 72
- 93 more added
- Sold out
- 29
- 81 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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, Q3 2025
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Aigen Investment Management, LP | 3,822 | $227.0K | 0.04% | +3,822 | New |
| Bank of Montreal | 3,797 | $225.5K | 0.00% | +3,797 | New |
| Captrust Financial Advisors | 3,755 | $223.0K | 0.00% | +3,755 | New |
| Anb Bank | 3,721 | $221.0K | 0.09% | +3,721 | New |
| SRS Capital Advisors, Inc. | 3,672 | $218.1K | 0.00% | +3,672 | New |
| Ameritas Investment Partners, Inc. | 3,652 | $216.9K | 0.01% | −248−6.4% | Reduced |
| SBI Securities Co., Ltd. | 3,408 | $202.4K | 0.01% | −459−11.9% | Reduced |
| Hartline Investment Corp | 3,400 | $201.9K | 0.02% | +3,400 | New |
| JustInvest LLC | 3,385 | $201.0K | 0.00% | +3,385 | New |
| Xponance, Inc. | 3,379 | $200.7K | 0.00% | +3,379 | New |
| Global Retirement Partners, LLC | 3,212 | $190.8K | 0.00% | +796+32.9% | Added |
| Steward Partners Investment Advisory, LLC | 2,625 | $155.9K | 0.00% | 00.0% | Unchanged |
| Stance Capital LLC | 2,606 | $154.8K | 0.06% | +2,606 | New |
| State of Alaska, Department of Revenue | 2,099 | $124.0K | 0.00% | +2,099 | New |
| Mark Sheptoff Financial Planning, LLC | 2,000 | $118.8K | 0.06% | +2,000 | New |
| Tower Research Capital LLC (TRC) | 1,622 | $96.3K | 0.00% | −4,140−71.9% | Reduced |
| KBC Group NV | 1,613 | $96.0K | 0.00% | +1,613 | New |
| Once Capital Management, LLC | 1,600 | $95.0K | 0.03% | +1,600 | New |
| Banque Cantonale Vaudoise | 1,585 | $94.0K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 1,595 | $94.0K | 0.00% | +1,595 | New |
| Simplex Trading, LLC | 1,363 | $80.0K | 0.00% | −7,834−85.2% | Reduced |
| Essential Partners LLC | 1,292 | $76.7K | 0.03% | +140+12.2% | Added |
| Canada Pension Plan Investment Board | 1,200 | $71.3K | 0.00% | −800−40.0% | Reduced |
| Amalgamated Bank | 1,185 | $70.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 1,071 | $63.6K | 0.00% | +1,071 | New |
| GAMMA Investing LLC | 982 | $58.3K | 0.00% | +28+2.9% | Added |
| Signaturefd, LLC | 913 | $54.2K | 0.00% | 00.0% | Unchanged |
| Point72 (DIFC) Ltd | 791 | $47.0K | 0.00% | −324−29.1% | Reduced |
| Allworth Financial LP | 735 | $43.6K | 0.00% | +50+7.3% | Added |
| Federation des caisses Desjardins du Quebec | 700 | $41.6K | 0.00% | +387+123.6% | Added |
| Versant Capital Management, Inc | 628 | $37.3K | 0.01% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 529 | $31.4K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 455 | $27.0K | 0.00% | +60+15.2% | Added |
| SWAN Capital LLC | 400 | $23.8K | 0.01% | +400 | New |
| Atlantic Trust, LLC | 393 | $23.3K | 0.00% | 00.0% | Unchanged |
| Montag A & Associates Inc | 393 | $23.3K | 0.00% | +393 | New |
| Franklin Resources Inc | 266 | $19.5K | 0.00% | −50,249−99.5% | Reduced |
| Bullock Wealth Management Group | 307 | $18.2K | 0.01% | +307 | New |
| Spire Wealth Management | 217 | $12.9K | 0.00% | +153+239.1% | Added |
| Sunbelt Securities, Inc. | 205 | $12.2K | 0.00% | +205 | New |
| EverSource Wealth Advisors, LLC | 197 | $11.7K | 0.00% | +12+6.5% | Added |
| WPG Advisers, LLC | 168 | $9.98K | 0.01% | +168 | New |
| MCF Advisors LLC | 164 | $9.74K | 0.00% | +164 | New |
| Hillsdale Investment Management Inc. | 150 | $8.91K | 0.00% | −219,850−99.9% | Reduced |
| Parallel Advisors, LLC | 146 | $8.67K | 0.00% | +11+8.1% | Added |
| Wealthspire Advisors, LLC | 114 | $6.77K | 0.00% | +114 | New |
| Sterling Capital Management LLC | 106 | $6.29K | 0.00% | +14+15.2% | Added |
| Trust Co of Vermont | 100 | $5.94K | 0.00% | 00.0% | Unchanged |
| Archer Investment Corp | 100 | $5.94K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 100 | $5.93K | 0.00% | +100 | New |
| Private Trust Co NA | 75 | $4.45K | 0.00% | −25−25.0% | Reduced |
| ORG Partners LLC | 70 | $4.16K | 0.00% | +70 | New |
| Rothschild Investment LLC | 65 | $3.86K | 0.00% | −10−13.3% | Reduced |
| Quarry LP | 61 | $3.62K | 0.00% | −1,070−94.6% | Reduced |
| Hager Investment Management Services, LLC | 50 | $2.97K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 40 | $2.37K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 35 | $2.08K | 0.00% | +35 | New |
| Federated Hermes, Inc. | 34 | $2.02K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 33 | $1.96K | 0.00% | 00.0% | Unchanged |
| CIBC Private Wealth Group, LLC | 25 | $1.49K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 24 | $1.43K | 0.00% | +9+60.0% | Added |
| Rise Advisors, LLC | 24 | $1.43K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 18 | $1.07K | 0.00% | −151−89.3% | Reduced |
| Smartleaf Asset Management LLC | 16 | $973 | 0.00% | +16 | New |
| National Bank of Canada | 10 | $594 | 0.00% | −10−50.0% | Reduced |
| JFS Wealth Advisors, LLC | 10 | $594 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 7 | $416 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 5 | $297 | 0.00% | −525−99.1% | Reduced |
| Massmutual Trust Co FSB | 3 | $178 | 0.00% | +3 | New |
| Tortoise Investment Management, LLC | 2 | $119 | 0.00% | +2 | New |
| Quest Partners LLC | 2 | $119 | 0.00% | +2 | New |
| Turning Point Benefit Group, Inc. | 2 | $118 | 0.00% | +2 | New |
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −1,168,906−100.0% | Sold out |
| Heights Capital Management, Inc | 0 | $0 | 0.00% | −340,102−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −159,483−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −75,303−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −74,362−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −56,940−100.0% | Sold out |
| Options Solutions, LLC | 0 | $0 | 0.00% | −47,221−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −42,213−100.0% | Sold out |
| Nkcfo LLC | 0 | $0 | 0.00% | −21,000−100.0% | Sold out |
| Cookson Peirce & Co Inc | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Shay Capital LLC | 0 | $0 | 0.00% | −19,500−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −18,809−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −15,451−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −13,273−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −13,000−100.0% | Sold out |
| Kestra Private Wealth Services, LLC | 0 | $0 | 0.00% | −12,511−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −8,533−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −7,642−100.0% | Sold out |
| C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors | 0 | $0 | 0.00% | −6,879−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −6,093−100.0% | Sold out |
| Garden State Investment Advisory Services LLC | 0 | $0 | 0.00% | −5,897−100.0% | Sold out |
| Park Square Financial Group, LLC | 0 | $0 | 0.00% | −493−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −323−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −251−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −122−100.0% | Sold out |
| Hantz Financial Services, Inc. | 0 | $0 | 0.00% | −20−100.0% | Sold out |