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 2026
Institutional positions in American Superconductor Corp as of Mar 31, 2026. 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
- 245
- +11 vs. Q4 2025
- Shares held
- 33.2M
- +3.66M (+12.4%) vs. Q4 2025
- Total value
- $1.12B
- +$271.6M (+31.9%) vs. Q4 2025
- New holders
- 55
- 100 more added
- Sold out
- 44
- 62 more reduced
6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wealth Enhancement Trust Services, Inc. | 399 | $13.5K | 0.00% | +399 | New |
| Atlantic Trust, LLC | 393 | $13.3K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 341 | $11.5K | 0.00% | −3,919−92.0% | Reduced |
| SRS Capital Advisors, Inc. | 232 | $11.5K | 0.00% | +225+3,214.3% | Added |
| MAI Capital Management | 339 | $11.5K | 0.00% | +249+276.7% | Added |
| Sterling Capital Management LLC | 299 | $10.1K | 0.00% | +9+3.1% | Added |
| National Bank of Canada | 294 | $9.94K | 0.00% | +174+145.0% | Added |
| SHP Wealth Management | 271 | $9.17K | 0.00% | 00.0% | Unchanged |
| Spire Wealth Management | 260 | $8.80K | 0.00% | +103+65.6% | Added |
| CoreCap Advisors, LLC | 220 | $7.45K | 0.00% | −264−54.5% | Reduced |
| Stance Capital LLC | 220 | $7.45K | 0.00% | +220 | New |
| Sunbelt Securities, Inc. | 205 | $6.94K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 201 | $6.80K | 0.00% | +201 | New |
| Vermillion Wealth Management, Inc. | 200 | $6.77K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 195 | $6.60K | 0.00% | +195 | New |
| Bullock Wealth Management Group | 190 | $6.20K | 0.00% | −117−38.1% | Reduced |
| Owl Creek Wealth Partners LLC | 175 | $5.92K | 0.00% | +175 | New |
| Signaturefd, LLC | 163 | $5.52K | 0.00% | −24−12.8% | Reduced |
| EverSource Wealth Advisors, LLC | 149 | $5.04K | 0.00% | +25+20.2% | Added |
| Parallel Advisors, LLC | 135 | $4.57K | 0.00% | −11−7.5% | Reduced |
| Smartleaf Asset Management LLC | 122 | $3.93K | 0.00% | +69+130.2% | Added |
| Northwestern Mutual Wealth Management Co | 110 | $3.72K | 0.00% | −60−35.3% | Reduced |
| Archer Investment Corp | 100 | $3.38K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 100 | $3.38K | 0.00% | +50+100.0% | Added |
| TD Waterhouse Canada Inc. | 100 | $3.25K | 0.00% | 00.0% | Unchanged |
| WPG Advisers, LLC | 93 | $3.15K | 0.00% | +6+6.9% | Added |
| Rothschild Investment LLC | 90 | $3.05K | 0.00% | +39+76.5% | Added |
| Wellington Shields & Co., LLC | 67 | $2.27K | 0.00% | +67 | New |
| Kilter Group LLC | 63 | $2.13K | 0.00% | +63 | New |
| Hager Investment Management Services, LLC | 50 | $1.69K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 46 | $1.56K | 0.00% | +46 | New |
| Whittier Trust Co of Nevada Inc | 40 | $1.30K | 0.00% | 00.0% | Unchanged |
| Wealth Preservation Advisors, LLC | 37 | $1.25K | 0.00% | +37 | New |
| IFP Advisors, Inc | 36 | $1.22K | 0.00% | −127−77.9% | Reduced |
| Farther Finance Advisors, LLC | 34 | $1.11K | 0.00% | −533−94.0% | Reduced |
| True Wealth Design, LLC | 28 | $948 | 0.00% | +21+300.0% | Added |
| Fortitude Family Office, LLC | 18 | $609 | 0.00% | −15−45.5% | Reduced |
| Keating Financial Advisory Services, Inc. | 18 | $609 | 0.00% | +5+38.5% | Added |
| Basecamp Wealth Advisors LLC | 13 | $440 | 0.00% | +13 | New |
| JFS Wealth Advisors, LLC | 10 | $339 | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 9 | $305 | 0.00% | +9 | New |
| Massmutual Trust Co FSB | 5 | $169 | 0.00% | +2+66.7% | Added |
| Central Trust Co | 4 | $136 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 2 | $68 | 0.00% | −3−60.0% | Reduced |
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Atreides Management, LP | 0 | $0 | 0.00% | −1,044,193−100.0% | Sold out |
| Driehaus Capital Management LLC | 0 | $0 | 0.00% | −499,984−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −251,642−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −242,767−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −139,989−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −120,251−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −79,160−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −77,457−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −69,724−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −69,225−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −61,352−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −59,952−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −58,950−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −52,221−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −47,100−100.0% | Sold out |
| Freestone Grove Partners LP | 0 | $0 | 0.00% | −46,128−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −37,200−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −36,587−100.0% | Sold out |
| Man Group plc | 0 | $0 | 0.00% | −36,094−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −35,086−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −31,166−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −26,695−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −23,565−100.0% | Sold out |
| Alpine Woods Capital Investors, LLC | 0 | $0 | 0.00% | −23,026−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −21,186−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −20,999−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −14,944−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −13,863−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −13,990−100.0% | Sold out |
| Entropy Technologies, LP | 0 | $0 | 0.00% | −13,457−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −11,582−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −11,227−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −10,551−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −10,066−100.0% | Sold out |
| Precision Wealth Strategies, LLC | 0 | $0 | 0.00% | −8,137−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −7,175−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −6,923−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −5,625−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −2,092−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −1,373−100.0% | Sold out |
| Greenline Wealth Management LLC | 0 | $0 | 0.00% | −169−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −71−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −34−100.0% | Sold out |
| Turning Point Benefit Group, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Skyview Financial Group LLC | – | – | – | – | Not filed |
| GPS Wealth Strategies Group, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Trust Co of Vermont | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |