American SuperconductorAMSC
13F holders, Q3 2024 (September 30)171holders +16
46new positions
32sold out
6famous investors
$23.60avg. 13F price*
At the end of Q3 2024, 171 institutions reported holding American Superconductor Corp. (AMSC) in their 13F filings, up 16 from Q2 2024. 46 opened new positions and 32 sold out. The largest holders were BlackRock, Inc. ($64.2M), Vanguard Group Inc. ($57.3M) and Baillie Gifford & Co. ($49.7M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- American Superconductor Corp.
- CUSIP
- 030111207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 46 | $57.2M |
| Exits | 32 | $21.8M |
All 13F filers, Q2 2024 → Q3 2024: 5,256,630 shares bought and 5,398,567 shares sold, net −141,937 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 171 holders
| BlackRock, Inc. | 0.00% | — | 2,720,783 | $64.2M |
| Vanguard Group Inc. | 0.00% | Add +16.3% | 2,426,278 | $57.3M |
| Baillie Gifford & Co. | 0.04% | Reduce -4.9% | 2,106,395 | $49.7M |
| AWM Investment Company, Inc. | 4.92% | Reduce -20.2% | 1,719,067 | $40.6M |
| Hood River Capital Management LLC | 0.55% | Reduce -17.5% | 1,431,940 | $33.8M |
| Nuveen Asset Management, LLC | 0.01% | Add +260.7% | 1,030,310 | $24.3M |
| Macquarie Group Ltd. | 0.03% | New | 995,566 | $23.5M |
| Royce & Associates LP | 0.20% | Reduce -2.8% | 955,174 | $22.5M |
| State Street Corp. | 0.00% | Add +18.3% | 906,250 | $21.4M |
| Geode Capital Management, LLC | 0.00% | Add +4.5% | 847,412 | $20.0M |
| Driehaus Capital Management LLC | 0.16% | Reduce -13.4% | 798,762 | $18.9M |
| Oberweis Asset Management Inc./ | 0.80% | No change | 664,400 | $15.7M |
| Dimensional Fund Advisors LP | 0.00% | Add +14.2% | 607,945 | $14.3M |
| Telemark Asset Management, LLC | 1.43% | No change | 600,000 | $14.2M |
| Invesco Ltd. | 0.00% | Reduce -19.6% | 538,399 | $12.7M |
| Essex Investment Management Co. LLC | 1.91% | Reduce -19.6% | 464,506 | $11.0M |
| Allspring Global Investments Holdings, LLC | 0.02% | New | 434,145 | $10.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.05% | Reduce -18.5% | 426,261 | $10.1M |
| Morgan Stanley | 0.00% | Reduce -53.2% | 377,405 | $8.9M |
| Legal & General Group Plc | 0.00% | Add +6130.7% | 337,207 | $8.0M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +211.2% | 304,528 | $7.2M |
| Northern Trust Corp. | 0.00% | Add +243.0% | 300,986 | $7.1M |
| Citadel Advisors | 0.01% | Reduce -22.3% | 296,057 | $7.0M |
| First Trust Advisors LP | 0.01% | Add +3.4% | 291,245 | $6.9M |
| Millennium Management | 0.01% | Reduce -30.1% | 262,199 | $6.2M |
| D. E. Shaw & Co. | 0.01% | Reduce -61.0% | 253,413 | $6.0M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -33.5% | 241,126 | $5.7M |
| ArrowMark Colorado Holdings LLC | 0.06% | Reduce -16.6% | 205,432 | $4.8M |
| Scout Investments, Inc. | 0.12% | New | 198,035 | $4.8M |
| Andrew Hill Investment Advisors, Inc. | 3.31% | Add +70.3% | 187,540 | $4.4M |
| Hillsdale Investment Management Inc. | 0.33% | Reduce -4.0% | 182,650 | $4.3M |
| Renaissance Technologies | 0.01% | Reduce -15.8% | 158,389 | $3.7M |
| ClariVest Asset Management LLC | 0.37% | No change | 156,560 | $3.7M |
| Rice Hall James & Associates, LLC | 0.19% | Reduce -0.7% | 147,192 | $3.5M |
| Informed Momentum Co LLC | 0.47% | Reduce -34.7% | 133,185 | $3.1M |
| Lisanti Capital Growth, LLC | 0.79% | Add +110.2% | 131,340 | $3.1M |
| Qube Research & Technologies Ltd | 0.01% | Add +83.0% | 130,131 | $3.1M |
| Palisades Investment Partners, LLC | 1.34% | Add +6.4% | 130,098 | $3.1M |
| Legato Capital Management LLC | 0.33% | Add +13.3% | 111,952 | $2.6M |
| GMT Capital Corp | 0.10% | No change | 108,066 | $2.6M |
| AQR Capital Management | 0.00% | New | 105,215 | $2.5M |
| Hussman Strategic Advisors, Inc. | 0.61% | Reduce -16.7% | 105,000 | $2.5M |
| Assenagon Asset Management S.A. | 0.01% | Reduce -90.2% | 103,383 | $2.4M |
| Ardsley Advisory Partners LP | 0.45% | Add +150.0% | 100,000 | $2.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -18.3% | 99,878 | $2.4M |
| Bridgeway Capital Management, LLC | 0.05% | No change | 99,700 | $2.4M |
| Canada Pension Plan Investment Board | 0.00% | Add +2163.4% | 92,800 | $2.2M |
| Alps Advisors Inc. | 0.01% | Reduce -3.9% | 78,579 | $1.9M |
| Ameriprise Financial Inc. | 0.00% | Add +370.8% | 78,500 | $1.9M |
| Capital Fund Management S.A. | 0.02% | New | 77,645 | $1.8M |
| Swiss National Bank | 0.00% | New | 72,200 | $1.7M |
| New York State Common Retirement Fund | 0.00% | Reduce -7.8% | 64,100 | $1.5M |
| Sei Investments Co. | 0.00% | Add +162.0% | 62,997 | $1.5M |
| UBS Group AG | 0.00% | Add +8.6% | 60,827 | $1.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | New | 60,332 | $1.4M |
| Barclays PLC | 0.00% | Add +376.2% | 58,328 | $1.4M |
| Merit Financial Group, LLC | 0.03% | Reduce -22.5% | 53,468 | $1.3M |
| Dynamic Technology Lab Private Ltd | 0.13% | New | 51,141 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +9.2% | 50,513 | $1.2M |
| Bantamac Capital, LLC | 0.57% | Reduce -37.2% | 49,824 | $1.2M |
| JPMorgan Chase & Co. | 0.00% | Reduce -45.8% | 46,717 | $1.1M |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | Add +12.6% | 44,075 | $1.0M |
| Panagora Asset Management Inc. | 0.00% | New | 43,401 | $1.0M |
| Royal Bank of Canada | 0.00% | Add +51.9% | 41,016 | $968K |
| Alliancebernstein L.P. | 0.00% | No change | 35,720 | $843K |
| California State Teachers Retirement System | 0.00% | Add +1308.7% | 34,850 | $822K |
| Man Group plc | 0.00% | Add +159.9% | 34,218 | $808K |
| Main Management ETF Advisors, LLC | 0.04% | New | 34,144 | $806K |
| Franklin Resources Inc. | 0.00% | New | 32,815 | $781K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -26.4% | 30,953 | $730K |
| Bank of America Corp. | 0.00% | Add +9.3% | 30,841 | $728K |
| Citigroup Inc. | 0.00% | Add +242.9% | 25,470 | $601K |
| Two Sigma Securities, LLC | 0.05% | New | 24,299 | $573K |
| Simplex Trading, LLC | 0.02% | Reduce -24.4% | 24,195 | $571K |
| Stephens Inc. | 0.01% | Reduce -54.7% | 24,178 | $571K |
| Raymond James & Associates | 0.00% | New | 23,889 | $564K |
| Trexquant Investment LP | 0.01% | Reduce -87.6% | 22,965 | $542K |
| Deutsche Bank AG | 0.00% | Add +53.6% | 22,884 | $540K |
| Osaic Holdings, Inc. | 0.00% | Add +163.4% | 22,703 | $536K |
| BNP Paribas Financial Markets | 0.00% | Reduce -52.4% | 22,679 | $535K |
| Gotham Asset Management | 0.01% | New | 22,589 | $533K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Reduce -0.6% | 22,395 | $529K |
| Petrus Trust Company, LTA | 0.05% | New | 20,940 | $494K |
| Sherbrooke Park Advisers LLC | 0.11% | New | 20,867 | $492K |
| Los Angeles Capital Management LLC | 0.00% | New | 20,569 | $485K |
| GTS Securities LLC | 0.01% | Reduce -61.8% | 20,557 | $485K |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -26.3% | 20,479 | $484K |
| Wells Fargo & Company | 0.00% | Reduce -13.6% | 20,368 | $481K |
| GoalVest Advisory LLC | 0.14% | Reduce -33.2% | 20,000 | $472K |
| MetLife Investment Management, LLC | 0.00% | Add +129.1% | 19,786 | $467K |
| Centiva Capital, LP | 0.02% | New | 19,319 | $456K |
| Two Sigma Investments, LP | 0.00% | Reduce -28.6% | 18,850 | $445K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | New | 18,800 | $444K |
| Corebridge Financial, Inc. | 0.00% | Add +1.8% | 18,690 | $441K |
| Jane Street Group, LLC | 0.00% | Reduce -72.5% | 18,687 | $441K |
| STRS Ohio | 0.00% | New | 16,600 | $392K |
| TFC Financial Management, Inc. | 0.06% | No change | 16,471 | $389K |
| Janus Henderson Group PLC | 0.00% | New | 15,800 | $373K |
| Aquatic Capital Management LLC | 0.01% | Add +710.5% | 15,400 | $363K |
| Spire Wealth Management | 0.01% | Add +23164.1% | 14,889 | $351K |
"% of holder's portfolio" is AMSC's weight in each manager's 13F, not the share of American Superconductor Corp. the manager owns.