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 2023
Institutional positions in American Superconductor Corp as of Sep 30, 2023. 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
- 72
- −5 vs. Q2 2023
- Shares held
- 13.2M
- +141.1K (+1.1%) vs. Q2 2023
- Total value
- $100.0M
- +$18.0M (+22.0%) vs. Q2 2023
- New holders
- 13
- 28 more added
- Sold out
- 18
- 18 more reduced
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AWM Investment Company, Inc. | 1,854,241 | $14.0M | 2.07% | −374,060−16.8% | Reduced |
| Baillie Gifford & Co | 1,491,370 | $11.3M | 0.01% | 00.0% | Unchanged |
| Vanguard Group Inc | 1,287,265 | $9.72M | 0.00% | +43,439+3.5% | Added |
| Royce & Associates LP | 1,246,260 | $9.41M | 0.10% | −618,269−33.2% | Reduced |
| Invesco Ltd. | 873,006 | $6.59M | 0.00% | +323,472+58.9% | Added |
| Essex Investment Management Co LLC | 700,833 | $5.29M | 0.86% | +700,833 | New |
| Dimensional Fund Advisors LP | 692,093 | $5.23M | 0.00% | +97,472+16.4% | Added |
| BlackRock Inc. | 577,745 | $4.36M | 0.00% | +62,320+12.1% | Added |
| Millennium Management LLC | 534,115 | $4.03M | 0.00% | +276,944+107.7% | Added |
| ArrowMark Colorado Holdings LLC | 381,432 | $2.88M | 0.04% | −288,000−43.0% | Reduced |
| D. E. Shaw & Co., Inc. | 374,128 | $2.82M | 0.00% | +33,059+9.7% | Added |
| Geode Capital Management, LLC | 289,363 | $2.19M | 0.00% | +528+0.2% | Added |
| First Trust Advisors LP | 264,780 | $2.00M | 0.00% | +8,309+3.2% | Added |
| CM Management, LLC | 200,000 | $1.51M | 1.60% | −150,000−42.9% | Reduced |
| Trexquant Investment LP | 170,880 | $1.29M | 0.03% | +170,880 | New |
| Two Sigma Investments, LP | 164,572 | $1.24M | 0.00% | +154,572+1,545.7% | Added |
| EAM Investors, LLC | 156,157 | $1.18M | 0.23% | −120,117−43.5% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 122,120 | $922.0K | 0.00% | +77,303+172.5% | Added |
| Citadel Advisors LLC | 120,328 | $908.5K | 0.00% | +63,182+110.6% | Added |
| Gsa Capital Partners LLP | 118,875 | $898.0K | 0.08% | −68,986−36.7% | Reduced |
| Qube Research & Technologies Ltd | 118,543 | $895.0K | 0.00% | +107,871+1,010.8% | Added |
| State Street Corp | 108,492 | $819.1K | 0.00% | 00.0% | Unchanged |
| GMT Capital Corp | 108,066 | $815.9K | 0.03% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 98,615 | $744.5K | 0.01% | +58,479+145.7% | Added |
| Susquehanna International Group, LLP | 92,865 | $701.1K | 0.00% | +43,960+89.9% | Added |
| Legato Capital Management LLC | 89,667 | $677.0K | 0.10% | +89,667 | New |
| Morgan Stanley | 86,316 | $651.7K | 0.00% | +42,817+98.4% | Added |
| Jump Financial, LLC | 85,300 | $644.0K | 0.02% | +56,479+196.0% | Added |
| Merit Financial Group, LLC | 77,899 | $588.1K | 0.02% | −948−1.2% | Reduced |
| Bridgeway Capital Management, LLC | 71,200 | $537.6K | 0.01% | −20,000−21.9% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 64,857 | $490.0K | 0.00% | +43,068+197.7% | Added |
| Northern Trust Corp | 53,730 | $405.7K | 0.00% | −216−0.4% | Reduced |
| Assenagon Asset Management S.A. | 49,182 | $371.3K | 0.00% | +49,182 | New |
| Royal Bank of Canada | 45,618 | $344.0K | 0.00% | +4,783+11.7% | Added |
| Bank of America Corp | 40,288 | $304.2K | 0.00% | +27,789+222.3% | Added |
| Virtu Financial LLC | 37,823 | $286.0K | 0.03% | +37,823 | New |
| Bank of New York Mellon Corp | 28,464 | $214.9K | 0.00% | −610−2.1% | Reduced |
| Bank of Montreal | 21,000 | $209.4K | 0.00% | +21,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 25,752 | $194.4K | 0.00% | +2,614+11.3% | Added |
| Barclays PLC | 25,608 | $193.3K | 0.00% | +25,604+640,100.0% | Added |
| Joule Financial, LLC | 22,046 | $166.4K | 0.09% | −22,631−50.7% | Reduced |
| Verition Fund Management LLC | 21,600 | $163.1K | 0.00% | +21,600 | New |
| Jefferies Financial Group Inc. | 21,300 | $160.8K | 0.00% | +21,300 | New |
| Goldman Sachs Group Inc | 20,665 | $156.0K | 0.00% | +20,665 | New |
| GTS Securities LLC | 18,762 | $141.7K | 0.00% | +4,688+33.3% | Added |
| Group One Trading, L.P. | 18,130 | $136.9K | 0.01% | −59,872−76.8% | Reduced |
| GPS Wealth Strategies Group, LLC | 17,487 | $132.0K | 0.03% | +17,487 | New |
| Price T Rowe Associates Inc | 16,911 | $128.0K | 0.00% | −19,489−53.5% | Reduced |
| TFC Financial Management | 16,471 | $124.4K | 0.03% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 15,966 | $120.5K | 0.00% | 00.0% | Unchanged |
| Greenwich Wealth Management LLC | 14,366 | $108.0K | 0.01% | 00.0% | Unchanged |
| Raymond James Financial Services Advisors, Inc. | 12,406 | $93.7K | 0.00% | −340−2.7% | Reduced |
| Atria Wealth Solutions, Inc. | 12,175 | $91.9K | 0.00% | −1,400−10.3% | Reduced |
| Citigroup Inc | 12,141 | $91.7K | 0.00% | +12,141 | New |
| LPL Financial LLC | 11,376 | $85.9K | 0.00% | +937+9.0% | Added |
| Advisor Group Holdings, Inc. | 10,045 | $75.8K | 0.00% | +5,391+115.8% | Added |
| Cutler Group LP | 7,437 | $56.0K | 0.01% | +6,826+1,117.2% | Added |
| Wells Fargo & Company | 3,490 | $26.4K | 0.00% | +987+39.4% | Added |
| Global Retirement Partners, LLC | 2,770 | $19.1K | 0.00% | −1,590−36.5% | Reduced |
| M&R Capital Management Inc | 2,000 | $15.1K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1,667 | $12.6K | 0.00% | +100+6.4% | Added |
| Rhumbline Advisers | 1,388 | $10.5K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 1,296 | $9.79K | 0.01% | −1,857−58.9% | Reduced |
| Nisa Investment Advisors, LLC | 540 | $4.08K | 0.00% | 00.0% | Unchanged |
| Arrow Financial Corp | 345 | $2.60K | 0.00% | +345 | New |
| Federation des caisses Desjardins du Quebec | 300 | $2.27K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 243 | $1.83K | 0.00% | +50+25.9% | Added |
| US Bancorp | 128 | $966 | 0.00% | 00.0% | Unchanged |
| Aspire Private Capital, LLC | 100 | $755 | 0.00% | +100 | New |
| Whittier Trust Co of Nevada Inc | 40 | $302 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 10 | $76 | 0.00% | −10−50.0% | Reduced |
| JFS Wealth Advisors, LLC | 10 | $76 | 0.00% | 00.0% | Unchanged |
| KBC Group NV | 0 | $0 | 0.00% | −459,007−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −69,489−100.0% | Sold out |
| Quinn Opportunity Partners LLC | 0 | $0 | 0.00% | −62,661−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −56,610−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −30,393−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −29,760−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −22,760−100.0% | Sold out |
| Prescott Group Capital Management, L.L.C. | 0 | $0 | 0.00% | −20,200−100.0% | Sold out |
| Journey Strategic Wealth LLC | 0 | $0 | 0.00% | −17,375−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −17,124−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −15,719−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −14,236−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −14,000−100.0% | Sold out |
| Zacks Investment Management | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −1,797−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| Tilia Fiduciary Partners, Inc. | 0 | $0 | 0.00% | −1,100−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |