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, Q2 2026
Institutional positions in American Superconductor Corp as of Jun 30, 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
- 277
- +36 vs. Q1 2026
- Shares held
- 35.4M
- +2.24M (+6.8%) vs. Q1 2026
- Total value
- $1.47B
- +$346.2M (+30.9%) vs. Q1 2026
- New holders
- 66
- 107 more added
- Sold out
- 30
- 77 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ensign Peak Advisors, Inc | 3,050 | $126.6K | 0.00% | −1,500−33.0% | Reduced |
| SBI Securities Co., Ltd. | 3,024 | $125.5K | 0.00% | +293+10.7% | Added |
| Optiver Holding B.V. | 2,753 | $114.3K | 0.00% | +871+46.3% | Added |
| Federation des caisses Desjardins du Quebec | 2,495 | $103.6K | 0.00% | −130−5.0% | Reduced |
| Tower Research Capital LLC (TRC) | 2,338 | $97.0K | 0.00% | −2,337−50.0% | Reduced |
| Lodestone Wealth Management LLC | 2,297 | $95.3K | 0.03% | +1,243+117.9% | Added |
| Freestone Grove Partners LP | 2,228 | $92.5K | 0.00% | +2,228 | New |
| Global Retirement Partners, LLC | 1,919 | $79.7K | 0.00% | +1,919 | New |
| Rockefeller Capital Management L.P. | 1,556 | $64.6K | 0.00% | −17−1.1% | Reduced |
| GAMMA Investing LLC | 1,177 | $48.9K | 0.00% | +49+4.3% | Added |
| Nykredit A/S | 1,111 | $46.1K | 0.00% | +1,111 | New |
| Allworth Financial LP | 1,025 | $42.5K | 0.00% | −19−1.8% | Reduced |
| Dakota Community Bank & Trust NA | 994 | $41.3K | 0.13% | +994 | New |
| Hughes Financial Services, LLC | 900 | $37.4K | 0.00% | +900 | New |
| Steward Partners Investment Advisory, LLC | 810 | $33.6K | 0.00% | +810 | New |
| Clear Street Markets LLC | 794 | $33.0K | 0.01% | +794 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 753 | $31.3K | 0.00% | −134−15.1% | Reduced |
| Versant Capital Management, Inc | 665 | $27.6K | 0.00% | 00.0% | Unchanged |
| Blue Bell Private Wealth Management, LLC | 613 | $25.4K | 0.00% | +613 | New |
| GWM Advisors LLC | 612 | $25.4K | 0.00% | −21−3.3% | Reduced |
| Nisa Investment Advisors, LLC | 553 | $23.0K | 0.00% | +8+1.5% | Added |
| SWAN Capital LLC | 550 | $22.8K | 0.01% | +50+10.0% | Added |
| Signaturefd, LLC | 488 | $20.3K | 0.00% | +325+199.4% | Added |
| Wealth Enhancement Trust Services, Inc. | 406 | $16.9K | 0.00% | +7+1.8% | Added |
| Atlantic Trust, LLC | 393 | $16.3K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 387 | $16.1K | 0.01% | −778−66.8% | Reduced |
| The PNC Financial Services Group, Inc. | 386 | $16.0K | 0.00% | +45+13.2% | Added |
| Caitong International Asset Management Co., Ltd | 332 | $13.8K | 0.00% | +332 | New |
| Kemnay Advisory Services Inc. | 329 | $13.7K | 0.00% | −1,538−82.4% | Reduced |
| Harbour Investments, Inc. | 301 | $12.5K | 0.00% | +100+49.8% | Added |
| Lavaca Capital LLC | 280 | $11.6K | 0.00% | +280 | New |
| SHP Wealth Management | 271 | $11.2K | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 220 | $9.13K | 0.00% | 00.0% | Unchanged |
| Stance Capital LLC | 220 | $9.13K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 192 | $7.97K | 0.00% | +43+28.9% | Added |
| Bullock Wealth Management Group | 190 | $7.58K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 181 | $7.51K | 0.00% | −43,331−99.6% | Reduced |
| Owl Creek Wealth Partners LLC | 175 | $7.26K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 165 | $6.85K | 0.00% | −134−44.8% | Reduced |
| National Bank of Canada | 163 | $6.77K | 0.00% | −131−44.6% | Reduced |
| Spire Wealth Management | 157 | $6.52K | 0.00% | −103−39.6% | Reduced |
| Barrett & Company, Inc. | 150 | $6.23K | 0.00% | +150 | New |
| Quantbot Technologies LP | 139 | $5.77K | 0.00% | +139 | New |
| Fortitude Family Office, LLC | 136 | $5.64K | 0.00% | +118+655.6% | Added |
| Parallel Advisors, LLC | 135 | $5.60K | 0.00% | 00.0% | Unchanged |
| Hantz Financial Services, Inc. | 130 | $5.00K | 0.00% | +130 | New |
| Northwestern Mutual Wealth Management Co | 119 | $4.94K | 0.00% | +9+8.2% | Added |
| Smartleaf Asset Management LLC | 122 | $4.86K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 108 | $4.48K | 0.00% | +72+200.0% | Added |
| TD Waterhouse Canada Inc. | 110 | $4.40K | 0.00% | +10+10.0% | Added |
| Rothschild Investment LLC | 104 | $4.32K | 0.00% | +14+15.6% | Added |
| Private Trust Co NA | 100 | $4.15K | 0.00% | 00.0% | Unchanged |
| Archer Investment Corp | 100 | $4.15K | 0.00% | 00.0% | Unchanged |
| Trust Co of Vermont | 100 | $4.15K | 0.00% | +100 | New |
| IMA Wealth, Inc. | 100 | $4.15K | 0.00% | +100 | New |
| Oakworth Capital, Inc. | 100 | $3.99K | 0.00% | +100 | New |
| Quarry LP | 95 | $3.94K | 0.00% | +95 | New |
| Farther Finance Advisors, LLC | 88 | $3.64K | 0.00% | +54+158.8% | Added |
| Wellington Shields & Co., LLC | 67 | $2.78K | 0.00% | 00.0% | Unchanged |
| JNBA Financial Advisors | 66 | $2.74K | 0.00% | +66 | New |
| Kilter Group LLC | 63 | $2.62K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 61 | $2.53K | 0.00% | −8,760−99.3% | Reduced |
| Hager Investment Management Services, LLC | 50 | $2.08K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 50 | $2.08K | 0.00% | +50 | New |
| Whittier Trust Co of Nevada Inc | 40 | $1.42K | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 27 | $1.12K | 0.00% | +14+107.7% | Added |
| True Wealth Design, LLC | 25 | $1.04K | 0.00% | −3−10.7% | Reduced |
| Larson Financial Group LLC | 22 | $913 | 0.00% | +13+144.4% | Added |
| Massmutual Trust Co FSB | 21 | $872 | 0.00% | +16+320.0% | Added |
| Keating Financial Advisory Services, Inc. | 19 | $789 | 0.00% | +1+5.6% | Added |
| Stone House Investment Management, LLC | 14 | $581 | 0.00% | +14 | New |
| Rialto Wealth Management, LLC | 13 | $540 | 0.00% | +13 | New |
| JFS Wealth Advisors, LLC | 10 | $416 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 3 | $125 | 0.00% | +1+50.0% | Added |
| JPL Wealth Management, LLC | 2 | $84 | 0.00% | +2 | New |
| WPG Advisers, LLC | 1 | $42 | 0.00% | −92−98.9% | Reduced |
| RHL Group, LLC | 1 | $42 | 0.00% | +1 | New |
| Hood River Capital Management LLC | 0 | $0 | 0.00% | −398,711−100.0% | Sold out |
| Nomura Asset Management International Inc. | 0 | $0 | 0.00% | −379,483−100.0% | Sold out |
| Axiom Investors LLC | 0 | $0 | 0.00% | −100,814−100.0% | Sold out |
| Maxi Investments CY Ltd | 0 | $0 | 0.00% | −75,754−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −66,167−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −66,071−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −56,946−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −56,452−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −35,385−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −18,800−100.0% | Sold out |
| GoalVest Advisory LLC | 0 | $0 | 0.00% | −17,400−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −15,200−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −13,833−100.0% | Sold out |
| Integrated Quantitative Investments LLC | 0 | $0 | 0.00% | −12,868−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −11,266−100.0% | Sold out |
| City Center Advisors, LLC | 0 | $0 | 0.00% | −11,118−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −9,732−100.0% | Sold out |
| Mangrove Partners | 0 | $0 | 0.00% | −8,719−100.0% | Sold out |
| Handelsbanken Fonder AB | 0 | $0 | 0.00% | −8,600−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −7,792−100.0% | Sold out |
| Thrivent Financial for Lutherans | 0 | $0 | 0.00% | −7,242−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −6,391−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −6,285−100.0% | Sold out |