American SuperconductorAMSC
13F holders, Q4 2024 (December 31)191holders +20
46new positions
31sold out
4famous investors
$24.64avg. 13F price*
At the end of Q4 2024, 191 institutions reported holding American Superconductor Corp. (AMSC) in their 13F filings, up 20 from Q3 2024. 46 opened new positions and 31 sold out. The largest holders were BlackRock, Inc. ($84.4M), Vanguard Group Inc. ($54.8M) and Baillie Gifford & Co. ($40.6M). 4 famous investors held it, including Cliff Asness (0.0% of AQR Capital Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- American Superconductor Corp.
- CUSIP
- 030111207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 46 | $49.7M |
| Exits | 31 | $19.4M |
All 13F filers, Q3 2024 → Q4 2024: 4,011,694 shares bought and 3,795,160 shares sold, net +216,534 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 191 holders
| BlackRock, Inc. | 0.00% | Add +26.0% | 3,427,893 | $84.4M |
| Vanguard Group Inc. | 0.00% | Reduce -8.4% | 2,222,935 | $54.8M |
| Baillie Gifford & Co. | 0.03% | Reduce -21.7% | 1,649,790 | $40.6M |
| AWM Investment Company, Inc. | 4.54% | Reduce -12.0% | 1,513,478 | $37.3M |
| Hood River Capital Management LLC | 0.45% | Reduce -13.7% | 1,236,146 | $30.4M |
| Macquarie Group Ltd. | 0.03% | Add +4.5% | 1,040,179 | $25.6M |
| Driehaus Capital Management LLC | 0.19% | Add +18.0% | 942,698 | $23.2M |
| State Street Corp. | 0.00% | Add +0.3% | 909,295 | $22.4M |
| Nuveen Asset Management, LLC | 0.01% | Reduce -14.7% | 878,624 | $21.6M |
| Geode Capital Management, LLC | 0.00% | Add +1.1% | 856,455 | $21.1M |
| Royce & Associates LP | 0.19% | Reduce -12.2% | 838,932 | $20.7M |
| Oberweis Asset Management Inc./ | 0.77% | No change | 664,400 | $16.4M |
| Dimensional Fund Advisors LP | 0.00% | Add +7.6% | 654,299 | $16.1M |
| Telemark Asset Management, LLC | 1.47% | No change | 600,000 | $14.8M |
| Wellington Management Group LLP | 0.00% | New | 461,230 | $11.4M |
| Morgan Stanley | 0.00% | Add +16.1% | 438,171 | $10.8M |
| Essex Investment Management Co. LLC | 1.90% | Reduce -7.5% | 429,876 | $10.6M |
| UBS Group AG | 0.00% | Add +600.1% | 425,877 | $10.5M |
| Raymond James Financial Inc. | 0.00% | — | 413,646 | $10.2M |
| Allspring Global Investments Holdings, LLC | 0.01% | Reduce -13.1% | 377,375 | $9.3M |
| Legal & General Group Plc | 0.00% | Add +3.1% | 347,549 | $8.6M |
| First Trust Advisors LP | 0.01% | Add +15.0% | 335,053 | $8.3M |
| Northern Trust Corp. | 0.00% | Add +8.9% | 327,805 | $8.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.4% | 317,869 | $7.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +29.3% | 311,718 | $7.7M |
| Arrowstreet Capital, Limited Partnership | 0.01% | New | 296,792 | $7.3M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.03% | Reduce -35.0% | 277,250 | $6.8M |
| Citadel Advisors | 0.01% | Reduce -12.2% | 259,839 | $6.4M |
| AQR Capital Management | 0.01% | Add +143.5% | 256,230 | $6.3M |
| D. E. Shaw & Co. | 0.01% | Reduce -0.5% | 252,209 | $6.2M |
| Balyasny Asset Management L.P. | 0.01% | New | 238,992 | $5.9M |
| Invesco Ltd. | 0.00% | Reduce -63.3% | 197,783 | $4.9M |
| Qube Research & Technologies Ltd | 0.01% | Add +41.4% | 183,974 | $4.5M |
| Hillsdale Investment Management Inc. | 0.23% | Add +0.6% | 183,800 | $4.5M |
| ArrowMark Colorado Holdings LLC | 0.05% | Reduce -28.7% | 146,432 | $3.6M |
| Palisades Investment Partners, LLC | 1.48% | Add +9.5% | 142,415 | $3.5M |
| Andrew Hill Investment Advisors, Inc. | 2.10% | Reduce -38.7% | 114,971 | $2.8M |
| Bank of New York Mellon Corp | 0.00% | Add +8.7% | 108,609 | $2.7M |
| GMT Capital Corp | 0.13% | No change | 108,066 | $2.7M |
| KBC Group NV | 0.01% | New | 101,175 | $2.5M |
| Ardsley Advisory Partners LP | 0.48% | No change | 100,000 | $2.5M |
| KP Management LLC | 0.82% | New | 95,000 | $2.3M |
| Rice Hall James & Associates, LLC | 0.11% | Reduce -43.5% | 83,130 | $2.0M |
| Swiss National Bank | 0.00% | Add +4.3% | 75,300 | $1.9M |
| Panagora Asset Management Inc. | 0.01% | Add +69.6% | 73,613 | $1.8M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +21.4% | 73,274 | $1.8M |
| Ameriprise Financial Inc. | 0.00% | Reduce -11.7% | 69,281 | $1.7M |
| Baird Financial Group, Inc. | 0.00% | New | 67,945 | $1.7M |
| New York State Common Retirement Fund | 0.00% | Add +3.8% | 66,536 | $1.6M |
| Barclays PLC | 0.00% | Add +13.0% | 65,903 | $1.6M |
| Hussman Strategic Advisors, Inc. | 0.46% | Reduce -40.0% | 63,000 | $1.6M |
| Algert Global LLC | 0.04% | New | 62,558 | $1.5M |
| Campbell Newman Asset Management Inc. | 0.12% | New | 60,205 | $1.5M |
| LPL Financial LLC | 0.00% | Add +332.0% | 58,534 | $1.4M |
| Amundi | 0.00% | New | 52,911 | $1.4M |
| Alps Advisors Inc. | 0.01% | Reduce -25.8% | 58,304 | $1.4M |
| Legato Capital Management LLC | 0.17% | Reduce -51.5% | 54,276 | $1.3M |
| Bantamac Capital, LLC | 0.60% | Add +8.9% | 54,239 | $1.3M |
| Sei Investments Co. | 0.00% | Reduce -17.3% | 52,106 | $1.3M |
| Merit Financial Group, LLC | 0.02% | Reduce -2.9% | 51,942 | $1.3M |
| Rhumbline Advisers | 0.00% | Add +1.2% | 51,119 | $1.3M |
| JPMorgan Chase & Co. | 0.00% | Add +7.0% | 50,012 | $1.2M |
| Capital Fund Management S.A. | 0.01% | Reduce -37.4% | 48,622 | $1.2M |
| Susquehanna International Group, LLP | 0.00% | New | 47,501 | $1.2M |
| Nkcfo LLC | 0.51% | New | 47,000 | $1.2M |
| Caption Management, LLC | 0.05% | New | 45,900 | $1.1M |
| Dorsey & Whitney Trust CO LLC | 0.06% | New | 45,300 | $1.1M |
| Range Financial Group LLC | 0.48% | New | 42,018 | $1.0M |
| HRT Financial LP | 0.01% | New | 39,274 | $967K |
| Los Angeles Capital Management LLC | 0.00% | Add +86.5% | 38,372 | $945K |
| Alliancebernstein L.P. | 0.00% | No change | 35,720 | $880K |
| California State Teachers Retirement System | 0.00% | Add +2.0% | 35,559 | $876K |
| Gsa Capital Partners LLP | 0.06% | New | 34,661 | $854K |
| Wells Fargo & Company | 0.00% | Add +68.2% | 34,267 | $844K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +8.1% | 33,464 | $824K |
| Deutsche Bank AG | 0.00% | Add +43.8% | 32,913 | $811K |
| Franklin Resources Inc. | 0.00% | No change | 32,815 | $808K |
| Main Management ETF Advisors, LLC | 0.04% | Reduce -8.3% | 31,328 | $772K |
| Citigroup Inc. | 0.00% | Add +21.4% | 30,919 | $762K |
| Jane Street Group, LLC | 0.00% | Add +57.0% | 29,342 | $723K |
| Emerald Advisers, LLC | 0.03% | New | 28,119 | $693K |
| NewEdge Advisors, LLC | 0.00% | Add +732.3% | 26,874 | $662K |
| Bridgeway Capital Management, LLC | 0.01% | Reduce -73.1% | 26,791 | $660K |
| Millennium Management | 0.00% | Reduce -91.2% | 23,065 | $568K |
| Ieq Capital, LLC | 0.01% | New | 22,835 | $562K |
| T. Rowe Price Associates Inc. | 0.00% | Add +10.4% | 22,600 | $557K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +18.6% | 22,306 | $549K |
| MetLife Investment Management, LLC | 0.00% | Add +7.2% | 21,201 | $522K |
| Simplex Trading, LLC | 0.01% | Reduce -12.3% | 21,212 | $522K |
| IMC-Chicago, LLC | 0.01% | New | 20,906 | $515K |
| STRS Ohio | 0.00% | Add +25.9% | 20,900 | $515K |
| Royal Bank of Canada | 0.00% | Reduce -49.9% | 20,543 | $506K |
| Summit Global Investments | 0.03% | New | 20,049 | $494K |
| Q Fund Management (Hong Kong) Ltd | 0.52% | — | 20,000 | $493K |
| GoalVest Advisory LLC | 0.14% | No change | 20,000 | $493K |
| Informed Momentum Co LLC | 0.07% | Reduce -85.8% | 18,967 | $467K |
| Wolverine Trading, LLC | 0.01% | New | 17,874 | $450K |
| Two Sigma Investments, LP | 0.00% | Reduce -3.3% | 18,222 | $449K |
| Spire Wealth Management | 0.01% | Add +17.6% | 17,517 | $431K |
| HSBC Holdings PLC | 0.00% | Add +20.3% | 17,379 | $429K |
"% of holder's portfolio" is AMSC's weight in each manager's 13F, not the share of American Superconductor Corp. the manager owns.