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 |
|---|---|---|---|---|---|
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 2 | $68 | 0.00% | −3−60.0% | Reduced |
| Central Trust Co | 4 | $136 | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 5 | $169 | 0.00% | +2+66.7% | Added |
| Larson Financial Group LLC | 9 | $305 | 0.00% | +9 | New |
| JFS Wealth Advisors, LLC | 10 | $339 | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 13 | $440 | 0.00% | +13 | New |
| 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 |
| True Wealth Design, LLC | 28 | $948 | 0.00% | +21+300.0% | Added |
| Farther Finance Advisors, LLC | 34 | $1.11K | 0.00% | −533−94.0% | Reduced |
| IFP Advisors, Inc | 36 | $1.22K | 0.00% | −127−77.9% | Reduced |
| Wealth Preservation Advisors, LLC | 37 | $1.25K | 0.00% | +37 | New |
| Whittier Trust Co of Nevada Inc | 40 | $1.30K | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 46 | $1.56K | 0.00% | +46 | New |
| Hager Investment Management Services, LLC | 50 | $1.69K | 0.00% | 00.0% | Unchanged |
| Kilter Group LLC | 63 | $2.13K | 0.00% | +63 | New |
| Wellington Shields & Co., LLC | 67 | $2.27K | 0.00% | +67 | New |
| Rothschild Investment LLC | 90 | $3.05K | 0.00% | +39+76.5% | Added |
| WPG Advisers, LLC | 93 | $3.15K | 0.00% | +6+6.9% | Added |
| TD Waterhouse Canada Inc. | 100 | $3.25K | 0.00% | 00.0% | Unchanged |
| Archer Investment Corp | 100 | $3.38K | 0.00% | 00.0% | Unchanged |
| Private Trust Co NA | 100 | $3.38K | 0.00% | +50+100.0% | Added |
| Northwestern Mutual Wealth Management Co | 110 | $3.72K | 0.00% | −60−35.3% | Reduced |
| Smartleaf Asset Management LLC | 122 | $3.93K | 0.00% | +69+130.2% | Added |
| Parallel Advisors, LLC | 135 | $4.57K | 0.00% | −11−7.5% | Reduced |
| EverSource Wealth Advisors, LLC | 149 | $5.04K | 0.00% | +25+20.2% | Added |
| Signaturefd, LLC | 163 | $5.52K | 0.00% | −24−12.8% | Reduced |
| Owl Creek Wealth Partners LLC | 175 | $5.92K | 0.00% | +175 | New |
| Bullock Wealth Management Group | 190 | $6.20K | 0.00% | −117−38.1% | Reduced |
| Fifth Third Bancorp | 195 | $6.60K | 0.00% | +195 | New |
| Vermillion Wealth Management, Inc. | 200 | $6.77K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 201 | $6.80K | 0.00% | +201 | New |
| Sunbelt Securities, Inc. | 205 | $6.94K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 220 | $7.45K | 0.00% | −264−54.5% | Reduced |
| Stance Capital LLC | 220 | $7.45K | 0.00% | +220 | New |
| Spire Wealth Management | 260 | $8.80K | 0.00% | +103+65.6% | Added |
| SHP Wealth Management | 271 | $9.17K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 294 | $9.94K | 0.00% | +174+145.0% | Added |
| Sterling Capital Management LLC | 299 | $10.1K | 0.00% | +9+3.1% | Added |
| MAI Capital Management | 339 | $11.5K | 0.00% | +249+276.7% | Added |
| SRS Capital Advisors, Inc. | 232 | $11.5K | 0.00% | +225+3,214.3% | Added |
| The PNC Financial Services Group, Inc. | 341 | $11.5K | 0.00% | −3,919−92.0% | Reduced |
| Atlantic Trust, LLC | 393 | $13.3K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Trust Services, Inc. | 399 | $13.5K | 0.00% | +399 | New |
| SWAN Capital LLC | 500 | $16.9K | 0.01% | +100+25.0% | Added |
| Nisa Investment Advisors, LLC | 545 | $18.4K | 0.00% | +16+3.0% | Added |
| GWM Advisors LLC | 633 | $21.4K | 0.00% | −138−17.9% | Reduced |
| Versant Capital Management, Inc | 665 | $22.5K | 0.00% | −81−10.9% | Reduced |
| Acadian Asset Management LLC | 811 | $27.0K | 0.00% | −13,250−94.2% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 887 | $30.0K | 0.00% | +187+26.7% | Added |
| Allworth Financial LP | 1,044 | $35.3K | 0.00% | +328+45.8% | Added |
| Lodestone Wealth Management LLC | 1,054 | $35.7K | 0.01% | 00.0% | Unchanged |
| GAMMA Investing LLC | 1,128 | $38.2K | 0.00% | +47+4.3% | Added |
| Essential Partners LLC | 1,165 | $39.4K | 0.01% | +13+1.1% | Added |
| Rockefeller Capital Management L.P. | 1,573 | $53.2K | 0.00% | +10+0.6% | Added |
| KBC Group NV | 1,613 | $55.0K | 0.00% | 00.0% | Unchanged |
| Kemnay Advisory Services Inc. | 1,867 | $63.2K | 0.01% | +1,867 | New |
| Optiver Holding B.V. | 1,882 | $63.7K | 0.00% | +1,882 | New |
| Federation des caisses Desjardins du Quebec | 2,625 | $88.9K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 2,731 | $92.4K | 0.00% | +38+1.4% | Added |
| Ameritas Investment Partners, Inc. | 3,652 | $123.6K | 0.00% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 4,550 | $154.0K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 4,624 | $156.5K | 0.02% | +1,603+53.1% | Added |
| Tower Research Capital LLC (TRC) | 4,675 | $158.2K | 0.00% | +1,784+61.7% | Added |
| Citigroup Inc | 4,889 | $165.5K | 0.00% | +3,294+206.5% | Added |
| Walleye Trading LLC | 5,065 | $171.4K | 0.00% | +5,065 | New |
| Acorn Financial Advisory Services Inc | 6,004 | $203.2K | 0.03% | +6,004 | New |
| Wealth Enhancement Advisory Services, LLC | 6,401 | $205.4K | 0.00% | +6,401 | New |
| Savant Capital, LLC | 6,069 | $205.4K | 0.00% | +6,069 | New |
| Walleye Capital LLC | 6,285 | $212.7K | 0.00% | −58,235−90.3% | Reduced |
| EntryPoint Capital, LLC | 6,312 | $213.7K | 0.06% | +6,312 | New |
| Brinker Capital Investments, LLC | 6,331 | $214.3K | 0.00% | +6,331 | New |
| Cerity Partners LLC | 6,391 | $216.3K | 0.00% | +6,391 | New |
| Wellington Shields Capital Management, LLC | 6,565 | $222.2K | 0.03% | +6,565 | New |
| D.A. Davidson & Co. | 6,794 | $230.0K | 0.00% | −214−3.1% | Reduced |
| Great Valley Advisor Group, Inc. | 6,891 | $233.3K | 0.00% | +6,891 | New |
| Kingsview Wealth Management, LLC | 6,995 | $236.8K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 7,159 | $241.4K | 0.00% | −692−8.8% | Reduced |
| Axq Capital, LP | 7,231 | $244.8K | 0.03% | −11,700−61.8% | Reduced |
| Thrivent Financial for Lutherans | 7,242 | $245.0K | 0.00% | +7,242 | New |
| Prudential Financial Inc | 7,280 | $246.4K | 0.00% | +7,280 | New |
| Pictet Asset Management Holding SA | 7,413 | $250.9K | 0.00% | +7,413 | New |
| Headlands Technologies LLC | 7,792 | $263.8K | 0.03% | −26,516−77.3% | Reduced |
| Fund Advisors of America Inc | 7,999 | $270.8K | 0.27% | −3,054−27.6% | Reduced |
| Cornerstone Investment Partners, LLC | 8,002 | $270.9K | 0.01% | +8,002 | New |
| Morgan Dempsey Capital Management LLC | 8,510 | $288.0K | 0.13% | +8,510 | New |
| Handelsbanken Fonder AB | 8,600 | $291.0K | 0.00% | 00.0% | Unchanged |
| Mangrove Partners | 8,719 | $295.1K | 0.02% | +8,719 | New |
| US Bancorp | 8,821 | $298.6K | 0.00% | +61+0.7% | Added |
| CWM, LLC | 8,823 | $298.7K | 0.00% | +1,071+13.8% | Added |
| Central Pacific Bank - Trust Division | 9,175 | $310.6K | 0.04% | +9,175 | New |
| Creative Planning | 9,219 | $312.1K | 0.00% | +9,219 | New |
| PDT Partners, LLC | 9,732 | $329.4K | 0.02% | 00.0% | Unchanged |
| Cetera Investment Advisers | 10,023 | $339.3K | 0.00% | −1,402−12.3% | Reduced |
| Victory Capital Management Inc | 10,088 | $341.5K | 0.00% | −66,794−86.9% | Reduced |
| KLP Kapitalforvaltning AS | 10,100 | $341.9K | 0.00% | +700+7.4% | Added |
| State of Alaska, Department of Revenue | 10,146 | $343.0K | 0.00% | +4,000+65.1% | Added |
| Summit Financial, LLC | 10,277 | $347.9K | 0.00% | +10,277 | New |
| Principal Securities, Inc. | 10,368 | $351.0K | 0.01% | +1,732+20.1% | Added |