American SuperconductorAMSC
13F holders, Q1 2025 (March 31)189holders −2
38new positions
38sold out
7famous investors
$18.14avg. 13F price*
At the end of Q1 2025, 189 institutions reported holding American Superconductor Corp. (AMSC) in their 13F filings, down 2 from Q4 2024. 38 opened new positions and 38 sold out. The largest holders were BlackRock, Inc. ($59.1M), Vanguard Group Inc. ($41.5M) and AWM Investment Company, Inc. ($28.3M). 7 famous investors held it, including Gavin Baker (0.5% of Atreides Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- American Superconductor Corp.
- CUSIP
- 030111207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 38 | $32.9M |
| Exits | 38 | $23.6M |
All 13F filers, Q4 2024 → Q1 2025: 3,346,677 shares bought and 3,215,530 shares sold, net +131,147 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 189 holders
| BlackRock, Inc. | 0.00% | Reduce -4.9% | 3,258,423 | $59.1M |
| Vanguard Group Inc. | 0.00% | Add +2.9% | 2,287,585 | $41.5M |
| AWM Investment Company, Inc. | 3.90% | Add +3.0% | 1,558,478 | $28.3M |
| Baillie Gifford & Co. | 0.02% | Reduce -7.9% | 1,518,890 | $27.6M |
| Hood River Capital Management LLC | 0.38% | Add +0.2% | 1,239,096 | $22.5M |
| Macquarie Group Ltd. | 0.02% | Reduce -1.3% | 1,026,822 | $18.6M |
| State Street Corp. | 0.00% | Reduce -2.1% | 890,047 | $16.1M |
| Geode Capital Management, LLC | 0.00% | Add +3.0% | 881,681 | $16.0M |
| Royce & Associates LP | 0.17% | Add +3.4% | 867,342 | $15.7M |
| Driehaus Capital Management LLC | 0.15% | Reduce -10.9% | 839,843 | $15.2M |
| Atreides Management | 0.54% | New | 824,040 | $14.9M |
| Nuveen, LLC | 0.00% | — | 778,566 | $14.1M |
| Dimensional Fund Advisors LP | 0.00% | Add +2.1% | 668,152 | $12.1M |
| Oberweis Asset Management Inc./ | 0.60% | Add +0.6% | 668,200 | $12.1M |
| Telemark Asset Management, LLC | 1.42% | No change | 600,000 | $10.9M |
| Morgan Stanley | 0.00% | Add +16.4% | 509,897 | $9.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +54.6% | 481,961 | $8.7M |
| Qube Research & Technologies Ltd | 0.01% | Add +122.5% | 409,407 | $7.4M |
| Essex Investment Management Co. LLC | 1.41% | Reduce -13.4% | 372,221 | $6.8M |
| Legal & General Group Plc | 0.00% | Add +4.9% | 364,530 | $6.6M |
| Allspring Global Investments Holdings, LLC | 0.01% | Reduce -9.6% | 341,030 | $6.3M |
| First Trust Advisors LP | 0.01% | Reduce -1.3% | 330,552 | $6.0M |
| Northern Trust Corp. | 0.00% | Add +0.8% | 330,513 | $6.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.6% | 309,681 | $5.6M |
| Wellington Management Group LLP | 0.00% | Reduce -37.3% | 289,173 | $5.2M |
| Invesco Ltd. | 0.00% | Add +23.1% | 243,523 | $4.4M |
| Trexquant Investment LP | 0.05% | New | 242,369 | $4.4M |
| Millennium Management | 0.00% | Add +878.5% | 225,682 | $4.1M |
| AQR Capital Management | 0.00% | Reduce -17.6% | 211,164 | $3.8M |
| Hillsdale Investment Management Inc. | 0.18% | Add +3.6% | 190,400 | $3.5M |
| UBS Group AG | 0.00% | Reduce -58.9% | 175,212 | $3.2M |
| Raymond James Financial Inc. | 0.00% | Reduce -61.8% | 157,889 | $2.9M |
| Capital Fund Management S.A. | 0.03% | Add +203.3% | 147,473 | $2.7M |
| Panagora Asset Management Inc. | 0.01% | Add +97.4% | 145,314 | $2.6M |
| Palisades Investment Partners, LLC | 1.32% | Add +1.5% | 144,604 | $2.6M |
| Citadel Advisors | 0.00% | Reduce -49.4% | 131,561 | $2.4M |
| ArrowMark Colorado Holdings LLC | 0.04% | Reduce -10.9% | 130,432 | $2.4M |
| Jane Street Group, LLC | 0.00% | Add +314.2% | 121,539 | $2.2M |
| Twinbeech Capital LP | 0.04% | New | 115,458 | $2.1M |
| Cubist Systematic Strategies, LLC | 0.03% | New | 109,285 | $2.0M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -60.8% | 108,571 | $2.0M |
| GMT Capital Corp | 0.10% | No change | 108,066 | $2.0M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.6% | 107,946 | $2.0M |
| Osaic Holdings, Inc. | 0.00% | Add +658.3% | 107,406 | $1.9M |
| Algert Global LLC | 0.04% | Add +52.9% | 95,658 | $1.7M |
| Baird Financial Group, Inc. | 0.00% | Add +26.2% | 85,766 | $1.6M |
| Rice Hall James & Associates, LLC | 0.09% | Reduce -0.5% | 82,749 | $1.5M |
| D. E. Shaw & Co. | 0.00% | Reduce -70.3% | 74,991 | $1.4M |
| Andrew Hill Investment Advisors, Inc. | 1.28% | Reduce -36.6% | 72,891 | $1.3M |
| Swiss National Bank | 0.00% | Reduce -3.6% | 72,600 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -2.3% | 71,562 | $1.3M |
| Ameriprise Financial Inc. | 0.00% | Reduce -1.5% | 68,268 | $1.2M |
| New York State Common Retirement Fund | 0.00% | No change | 66,536 | $1.2M |
| Dark Forest Capital Management LP | 0.06% | New | 66,523 | $1.2M |
| Campbell Newman Asset Management Inc. | 0.09% | Add +0.7% | 60,626 | $1.1M |
| Alps Advisors Inc. | 0.01% | Add +2.0% | 59,464 | $1.1M |
| JPMorgan Chase & Co. | 0.00% | Add +16.9% | 58,447 | $1.1M |
| Bank of America Corp. | 0.00% | Add +245.6% | 52,934 | $960K |
| Merit Financial Group, LLC | 0.01% | Reduce -0.4% | 51,751 | $939K |
| Susquehanna International Group, LLP | 0.00% | Add +7.0% | 50,827 | $922K |
| Rhumbline Advisers | 0.00% | Reduce -3.8% | 49,173 | $892K |
| Barclays PLC | 0.00% | Reduce -27.2% | 47,993 | $871K |
| Wells Fargo & Company | 0.00% | Add +37.0% | 46,942 | $852K |
| Amundi | 0.00% | Reduce -6.0% | 49,764 | $830K |
| Squarepoint Ops LLC | 0.00% | New | 45,478 | $825K |
| Dorsey & Whitney Trust CO LLC | 0.05% | No change | 45,300 | $822K |
| Range Financial Group LLC | 0.36% | Add +6.9% | 44,925 | $815K |
| Legato Capital Management LLC | 0.11% | Reduce -18.3% | 44,363 | $805K |
| Verition Fund Management LLC | 0.00% | New | 44,304 | $804K |
| Franklin Resources Inc. | 0.00% | Add +34.4% | 44,102 | $800K |
| Two Sigma Investments, LP | 0.00% | Add +137.9% | 43,357 | $786K |
| Bantamac Capital, LLC | 0.37% | Reduce -21.6% | 42,510 | $771K |
| Point72 Asset Management | 0.00% | New | 42,441 | $770K |
| Emerald Advisers, LLC | 0.03% | Add +37.7% | 38,719 | $702K |
| Inspire Investing, LLC | 0.08% | New | 38,556 | $699K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +12.7% | 37,723 | $684K |
| ExodusPoint Capital Management, LP | 0.01% | New | 36,265 | $658K |
| Alliancebernstein L.P. | 0.00% | No change | 35,720 | $648K |
| California State Teachers Retirement System | 0.00% | No change | 35,559 | $645K |
| LPL Financial LLC | 0.00% | Reduce -42.3% | 33,775 | $613K |
| Gsa Capital Partners LLP | 0.05% | Reduce -10.5% | 31,006 | $562K |
| Sei Investments Co. | 0.00% | Reduce -42.7% | 29,856 | $542K |
| Deutsche Bank AG | 0.00% | Reduce -9.3% | 29,835 | $541K |
| HRT Financial LP | 0.00% | Reduce -24.4% | 29,678 | $538K |
| Engineers Gate Manager LP | 0.01% | New | 29,137 | $529K |
| Fox Run Management, L.L.C. | 0.08% | New | 28,719 | $521K |
| Quantum Private Wealth, LLC | 0.19% | Add +140.1% | 27,423 | $497K |
| Citigroup Inc. | 0.00% | Reduce -12.0% | 27,200 | $493K |
| Royal Bank of Canada | 0.00% | Add +27.5% | 26,190 | $475K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +13.4% | 25,295 | $459K |
| HSBC Holdings PLC | 0.00% | Add +46.3% | 25,430 | $458K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -35.8% | 24,630 | $447K |
| T. Rowe Price Associates Inc. | 0.00% | Add +7.4% | 24,277 | $441K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -90.7% | 22,205 | $403K |
| Hussman Strategic Advisors, Inc. | 0.09% | Reduce -66.7% | 21,000 | $381K |
| STRS Ohio | 0.00% | No change | 20,900 | $379K |
| MetLife Investment Management, LLC | 0.00% | Reduce -1.9% | 20,808 | $377K |
| State Board of Administration of Florida Retirement System | 0.00% | New | 20,649 | $375K |
| Tudor Investment Corporation | 0.00% | New | 20,114 | $365K |
| Kennedy Capital Management LLC | 0.01% | New | 19,204 | $348K |
"% of holder's portfolio" is AMSC's weight in each manager's 13F, not the share of American Superconductor Corp. the manager owns.