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
- +2.30M (+7.0%) vs. Q1 2026
- Total value
- $1.47B
- +$349.0M (+31.1%) vs. Q1 2026
- New holders
- 66
- 108 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 | $953.6M |
| 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, 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 |
|---|---|---|---|---|---|
| WPG Advisers, LLC | 1 | $42 | 0.00% | −92−98.9% | Reduced |
| RHL Group, LLC | 1 | $42 | 0.00% | +1 | New |
| JPL Wealth Management, LLC | 2 | $84 | 0.00% | +2 | New |
| SJS Investment Consulting Inc. | 3 | $125 | 0.00% | +1+50.0% | Added |
| JFS Wealth Advisors, LLC | 10 | $416 | 0.00% | 00.0% | Unchanged |
| Rialto Wealth Management, LLC | 13 | $540 | 0.00% | +13 | New |
| Stone House Investment Management, LLC | 14 | $581 | 0.00% | +14 | New |
| Keating Financial Advisory Services, Inc. | 19 | $789 | 0.00% | +1+5.6% | Added |
| Massmutual Trust Co FSB | 21 | $872 | 0.00% | +16+320.0% | Added |
| Larson Financial Group LLC | 22 | $913 | 0.00% | +13+144.4% | Added |
| True Wealth Design, LLC | 25 | $1.04K | 0.00% | −3−10.7% | Reduced |
| Basecamp Wealth Advisors LLC | 27 | $1.12K | 0.00% | +14+107.7% | Added |
| Whittier Trust Co of Nevada Inc | 40 | $1.42K | 0.00% | 00.0% | Unchanged |
| Hager Investment Management Services, LLC | 50 | $2.08K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 50 | $2.08K | 0.00% | +50 | New |
| US Bancorp | 61 | $2.53K | 0.00% | −8,760−99.3% | Reduced |
| Kilter Group LLC | 63 | $2.62K | 0.00% | 00.0% | Unchanged |
| JNBA Financial Advisors | 66 | $2.74K | 0.00% | +66 | New |
| Wellington Shields & Co., LLC | 67 | $2.78K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 88 | $3.64K | 0.00% | +54+158.8% | Added |
| Quarry LP | 95 | $3.94K | 0.00% | +95 | New |
| Oakworth Capital, Inc. | 100 | $3.99K | 0.00% | +100 | New |
| Private Trust Co NA | 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 |
| Rothschild Investment LLC | 104 | $4.32K | 0.00% | +14+15.6% | Added |
| TD Waterhouse Canada Inc. | 110 | $4.40K | 0.00% | +10+10.0% | Added |
| IFP Advisors, Inc | 108 | $4.48K | 0.00% | +72+200.0% | Added |
| Smartleaf Asset Management LLC | 122 | $4.86K | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 119 | $4.94K | 0.00% | +9+8.2% | Added |
| Hantz Financial Services, Inc. | 130 | $5.00K | 0.00% | +130 | New |
| Parallel Advisors, LLC | 135 | $5.60K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 136 | $5.64K | 0.00% | +118+655.6% | Added |
| Quantbot Technologies LP | 139 | $5.77K | 0.00% | +139 | New |
| Barrett & Company, Inc. | 150 | $6.23K | 0.00% | +150 | New |
| Spire Wealth Management | 157 | $6.52K | 0.00% | −103−39.6% | Reduced |
| National Bank of Canada | 163 | $6.77K | 0.00% | −131−44.6% | Reduced |
| Sterling Capital Management LLC | 165 | $6.85K | 0.00% | −134−44.8% | Reduced |
| Owl Creek Wealth Partners LLC | 175 | $7.26K | 0.00% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 181 | $7.51K | 0.00% | −43,331−99.6% | Reduced |
| Bullock Wealth Management Group | 190 | $7.58K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 192 | $7.97K | 0.00% | +43+28.9% | Added |
| Archer Investment Corp | 200 | $8.30K | 0.00% | +100+100.0% | Added |
| CoreCap Advisors, LLC | 220 | $9.13K | 0.00% | 00.0% | Unchanged |
| Stance Capital LLC | 220 | $9.13K | 0.00% | 00.0% | Unchanged |
| SHP Wealth Management | 271 | $11.2K | 0.00% | 00.0% | Unchanged |
| Lavaca Capital LLC | 280 | $11.6K | 0.00% | +280 | New |
| Harbour Investments, Inc. | 301 | $12.5K | 0.00% | +100+49.8% | Added |
| Kemnay Advisory Services Inc. | 329 | $13.7K | 0.00% | −1,538−82.4% | Reduced |
| Caitong International Asset Management Co., Ltd | 332 | $13.8K | 0.00% | +332 | New |
| The PNC Financial Services Group, Inc. | 386 | $16.0K | 0.00% | +45+13.2% | Added |
| Essential Partners LLC | 387 | $16.1K | 0.01% | −778−66.8% | Reduced |
| Atlantic Trust, LLC | 393 | $16.3K | 0.00% | 00.0% | Unchanged |
| Wealth Enhancement Trust Services, Inc. | 406 | $16.9K | 0.00% | +7+1.8% | Added |
| Signaturefd, LLC | 488 | $20.3K | 0.00% | +325+199.4% | Added |
| SWAN Capital LLC | 550 | $22.8K | 0.01% | +50+10.0% | Added |
| Nisa Investment Advisors, LLC | 553 | $23.0K | 0.00% | +8+1.5% | Added |
| GWM Advisors LLC | 612 | $25.4K | 0.00% | −21−3.3% | Reduced |
| Blue Bell Private Wealth Management, LLC | 613 | $25.4K | 0.00% | +613 | New |
| Versant Capital Management, Inc | 665 | $27.6K | 0.00% | 00.0% | Unchanged |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 753 | $31.3K | 0.00% | −134−15.1% | Reduced |
| Clear Street Markets LLC | 794 | $33.0K | 0.01% | +794 | New |
| Steward Partners Investment Advisory, LLC | 810 | $33.6K | 0.00% | +810 | New |
| Hughes Financial Services, LLC | 900 | $37.4K | 0.00% | +900 | New |
| Dakota Community Bank & Trust NA | 994 | $41.3K | 0.13% | +994 | New |
| Allworth Financial LP | 1,025 | $42.5K | 0.00% | −19−1.8% | Reduced |
| Nykredit A/S | 1,111 | $46.1K | 0.00% | +1,111 | New |
| GAMMA Investing LLC | 1,177 | $48.9K | 0.00% | +49+4.3% | Added |
| Rockefeller Capital Management L.P. | 1,556 | $64.6K | 0.00% | −17−1.1% | Reduced |
| Global Retirement Partners, LLC | 1,919 | $79.7K | 0.00% | +1,919 | New |
| Freestone Grove Partners LP | 2,228 | $92.5K | 0.00% | +2,228 | New |
| Lodestone Wealth Management LLC | 2,297 | $95.3K | 0.03% | +1,243+117.9% | Added |
| Tower Research Capital LLC (TRC) | 2,338 | $97.0K | 0.00% | −2,337−50.0% | Reduced |
| Federation des caisses Desjardins du Quebec | 2,495 | $103.6K | 0.00% | −130−5.0% | Reduced |
| Optiver Holding B.V. | 2,753 | $114.3K | 0.00% | +871+46.3% | Added |
| SBI Securities Co., Ltd. | 3,024 | $125.5K | 0.00% | +293+10.7% | Added |
| Ensign Peak Advisors, Inc | 3,050 | $126.6K | 0.00% | −1,500−33.0% | Reduced |
| State of Wyoming | 3,675 | $152.5K | 0.02% | −949−20.5% | Reduced |
| STRS Ohio | 3,700 | $153.6K | 0.00% | −14,000−79.1% | Reduced |
| SRS Capital Advisors, Inc. | 4,045 | $167.9K | 0.00% | +3,813+1,643.5% | Added |
| Ameritas Investment Partners, Inc. | 4,277 | $177.5K | 0.00% | +625+17.1% | Added |
| SEB Asset Management AB | 4,986 | $207.0K | 0.00% | +4,986 | New |
| Promethium Advisors,llc | 5,000 | $207.6K | 0.10% | +5,000 | New |
| Victory Capital Management Inc | 5,313 | $220.5K | 0.00% | −4,775−47.3% | Reduced |
| CI Private Wealth, LLC | 5,372 | $223.0K | 0.00% | +5,372 | New |
| Granite Investment Partners, LLC | 5,420 | $225.0K | 0.01% | +5,420 | New |
| Stephens Inc | 5,450 | $226.2K | 0.00% | +5,450 | New |
| Mercer Global Advisors Inc | 5,550 | $230.4K | 0.00% | +5,550 | New |
| Y-Intercept (Hong Kong) Ltd | 5,575 | $231.4K | 0.00% | +5,575 | New |
| Acorn Financial Advisory Services Inc | 5,623 | $233.4K | 0.03% | −381−6.3% | Reduced |
| Mayflower Financial Advisors, LLC | 5,730 | $237.9K | 0.02% | +5,730 | New |
| State of Wisconsin Investment Board | 5,908 | $245.2K | 0.00% | +5,908 | New |
| Savant Capital, LLC | 6,044 | $250.9K | 0.00% | −25−0.4% | Reduced |
| EntryPoint Capital, LLC | 6,312 | $262.0K | 0.06% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 6,318 | $262.3K | 0.00% | −13−0.2% | Reduced |
| D.A. Davidson & Co. | 6,347 | $263.5K | 0.00% | −447−6.6% | Reduced |
| Yorktown Management & Research Co Inc | 6,400 | $265.7K | 0.16% | +6,400 | New |
| Pictet Asset Management Holding SA | 6,435 | $267.1K | 0.00% | −978−13.2% | Reduced |
| Two Sigma Securities, LLC | 6,551 | $271.9K | 0.02% | +6,551 | New |
| Wellington Shields Capital Management, LLC | 6,565 | $272.5K | 0.03% | 00.0% | Unchanged |