American SuperconductorAMSC
13F holders, Q4 2025 (December 31)240holders −32
35new positions
70sold out
8famous investors
$28.82avg. 13F price*
At the end of Q4 2025, 240 institutions reported holding American Superconductor Corp. (AMSC) in their 13F filings, down 32 from Q3 2025. 35 opened new positions and 70 sold out. The largest holders were BlackRock, Inc. ($107.9M), Vanguard Group Inc. ($101.5M) and Baillie Gifford & Co. ($43.4M). 8 famous investors held it, including Gavin Baker (0.6% of Atreides Management's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- American Superconductor Corp.
- CUSIP
- 030111207
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $26.6M |
| Exits | 70 | $192.1M |
All 13F filers, Q3 2025 → Q4 2025: 6,214,767 shares bought and 6,248,593 shares sold, net −33,826 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 240 holders
| BlackRock, Inc. | 0.00% | Add +3.3% | 3,750,403 | $107.9M |
| Vanguard Group Inc. | 0.00% | Add +19.6% | 3,526,632 | $101.5M |
| Baillie Gifford & Co. | 0.04% | Add +5.6% | 1,506,841 | $43.4M |
| State Street Corp. | 0.00% | Add +5.0% | 1,192,093 | $34.3M |
| Geode Capital Management, LLC | 0.00% | Add +1.9% | 1,090,710 | $31.4M |
| Atreides Management | 0.64% | Add +35.4% | 1,044,193 | $30.1M |
| Nuveen, LLC | 0.01% | Add +16.3% | 960,968 | $27.7M |
| Oberweis Asset Management Inc./ | 0.88% | Add +25.6% | 835,900 | $24.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -33.4% | 782,287 | $22.5M |
| Emerald Advisers, LLC | 0.67% | Add +45.4% | 757,568 | $21.8M |
| AWM Investment Company, Inc. | 2.10% | Add +1.2% | 754,220 | $21.7M |
| UBS Group AG | 0.00% | Add +284.3% | 744,563 | $21.4M |
| Morgan Stanley | 0.00% | Add +110.1% | 705,442 | $20.3M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Reduce -10.2% | 683,202 | $19.7M |
| First Trust Advisors LP | 0.01% | Add +49.0% | 682,967 | $19.7M |
| Telemark Asset Management, LLC | 1.78% | Reduce -10.2% | 619,900 | $17.8M |
| Qube Research & Technologies Ltd | 0.02% | Add +132.5% | 599,006 | $17.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +14.6% | 540,253 | $15.5M |
| Driehaus Capital Management LLC | 0.10% | Reduce -59.0% | 499,984 | $14.4M |
| Algert Global LLC | 0.21% | Add +60.1% | 460,771 | $13.3M |
| Nomura Asset Management International Inc. | 0.02% | — | 459,786 | $13.2M |
| D. E. Shaw & Co. | 0.01% | Reduce -41.1% | 443,148 | $12.8M |
| Emerald Mutual Fund Advisers Trust | 0.61% | Add +41.4% | 435,246 | $12.5M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.2% | 387,507 | $11.2M |
| Royce & Associates LP | 0.11% | Add +8.3% | 387,069 | $11.1M |
| Invesco Ltd. | 0.00% | Add +35.3% | 386,152 | $11.1M |
| Northern Trust Corp. | 0.00% | Reduce -8.0% | 360,806 | $10.4M |
| Citadel Advisors | 0.01% | Add +2178.6% | 337,713 | $9.7M |
| Two Sigma Investments, LP | 0.01% | Add +164.4% | 321,571 | $9.3M |
| Legal & General Group Plc | 0.00% | Add +7.1% | 278,026 | $8.0M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -30.6% | 274,844 | $7.9M |
| Panagora Asset Management Inc. | 0.03% | Add +25.8% | 254,785 | $7.3M |
| Tudor Investment Corporation | 0.04% | Add +43.8% | 251,642 | $7.2M |
| Jane Street Group, LLC | 0.01% | Add +78.4% | 242,767 | $7.0M |
| Allspring Global Investments Holdings, LLC | 0.01% | Add +2.6% | 204,678 | $6.5M |
| Essex Investment Management Co. LLC | 0.94% | Reduce -12.4% | 215,154 | $6.2M |
| Stephens Investment Management Group LLC | 0.07% | Add +156.6% | 174,228 | $5.0M |
| Bank of America Corp. | 0.00% | Reduce -16.4% | 165,568 | $4.8M |
| Balyasny Asset Management L.P. | 0.01% | New | 152,795 | $4.4M |
| AQR Capital Management | 0.00% | Reduce -13.5% | 145,965 | $4.2M |
| Palisades Investment Partners, LLC | 1.57% | Add +2.2% | 144,209 | $4.2M |
| Raymond James Financial Inc. | 0.00% | Reduce -15.2% | 141,811 | $4.1M |
| Renaissance Technologies | 0.01% | Reduce -56.8% | 139,989 | $4.0M |
| Bank of New York Mellon Corp | 0.00% | Add +2.6% | 137,042 | $3.9M |
| Baird Financial Group, Inc. | 0.01% | Add +67.0% | 134,899 | $3.9M |
| Axiom Investors LLC | 0.03% | Reduce -49.3% | 134,076 | $3.9M |
| Wells Fargo & Company | 0.00% | Reduce -38.5% | 133,918 | $3.9M |
| FMR LLC | 0.00% | Add +23.4% | 124,406 | $3.6M |
| JPMorgan Chase & Co. | 0.00% | Add +7.2% | 123,103 | $3.5M |
| Y-Intercept (Hong Kong) Ltd | 0.08% | New | 120,251 | $3.5M |
| ArrowMark Colorado Holdings LLC | 0.07% | No change | 110,432 | $3.2M |
| Swiss National Bank | 0.00% | Add +5.3% | 89,100 | $2.6M |
| BNP Paribas Financial Markets | 0.00% | Add +30.9% | 82,502 | $2.4M |
| Capital Fund Management S.A. | 0.02% | Add +20.8% | 79,160 | $2.3M |
| Sei Investments Co. | 0.00% | Add +19.1% | 78,810 | $2.3M |
| Millennium Management | 0.00% | Reduce -36.3% | 78,088 | $2.2M |
| Point72 Asset Management | 0.00% | Add +133.1% | 77,457 | $2.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -6.6% | 77,207 | $2.2M |
| Victory Capital Management Inc. | 0.00% | Add +85.8% | 76,882 | $2.2M |
| Barclays PLC | 0.00% | Add +18.0% | 73,805 | $2.1M |
| Lumbard & Kellner, LLC | 0.72% | Reduce -1.8% | 71,161 | $2.0M |
| SG Americas Securities, LLC | 0.00% | Add +123.1% | 70,992 | $2.0M |
| ExodusPoint Capital Management, LP | 0.02% | New | 70,751 | $2.0M |
| New York State Common Retirement Fund | 0.00% | Add +2.5% | 70,400 | $2.0M |
| HRT Financial LP | 0.01% | Add +1025.7% | 69,724 | $2.0M |
| Dynamic Technology Lab Private Ltd | 0.45% | New | 69,225 | $2.0M |
| Susquehanna International Group, LLP | 0.00% | Reduce -48.4% | 65,625 | $1.9M |
| Kennedy Capital Management LLC | 0.04% | Add +0.0% | 64,625 | $1.9M |
| Walleye Capital LLC | 0.01% | New | 64,520 | $1.9M |
| Campbell Newman Asset Management Inc. | 0.13% | Reduce -3.4% | 63,148 | $1.8M |
| Alps Advisors Inc. | 0.01% | Reduce -6.2% | 62,242 | $1.8M |
| Aquatic Capital Management LLC | 0.05% | Add +13.9% | 61,352 | $1.8M |
| Campbell & CO Investment Adviser LLC | 0.08% | New | 59,952 | $1.7M |
| Ameriprise Financial Inc. | 0.00% | Add +209.9% | 58,956 | $1.7M |
| Principal Financial Group Inc. | 0.00% | Add +49.6% | 58,950 | $1.7M |
| Rhumbline Advisers | 0.00% | Reduce -18.1% | 57,693 | $1.7M |
| Los Angeles Capital Management LLC | 0.01% | No change | 25,637 | $1.5M |
| Twinbeech Capital LP | 0.11% | New | 52,221 | $1.5M |
| California State Teachers Retirement System | 0.00% | Add +0.5% | 50,911 | $1.5M |
| Rice Hall James & Associates, LLC | 0.07% | Reduce -22.4% | 47,114 | $1.4M |
| Two Sigma Advisers, LP | 0.00% | Add +227.1% | 47,100 | $1.4M |
| Janney Montgomery Scott LLC | 0.00% | Add +1.4% | 46,381 | $1.3M |
| Amundi | 0.00% | Add +11.0% | 46,316 | $1.3M |
| Freestone Grove Partners LP | 0.01% | New | 46,128 | $1.3M |
| Royal Bank of Canada | 0.00% | Add +4.1% | 45,133 | $1.3M |
| Legato Capital Management LLC | 0.10% | Reduce -30.9% | 40,687 | $1.2M |
| Mackenzie Financial Corp. | 0.00% | Add +17.4% | 40,245 | $1.2M |
| LPL Financial LLC | 0.00% | Reduce -17.7% | 40,074 | $1.2M |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Add +12.9% | 39,600 | $1.1M |
| Alliancebernstein L.P. | 0.00% | No change | 39,320 | $1.1M |
| Deutsche Bank AG | 0.00% | Add +7.2% | 38,723 | $1.1M |
| Merit Financial Group, LLC | 0.01% | Add +17.0% | 37,281 | $1.1M |
| Verition Fund Management LLC | 0.01% | Reduce -47.7% | 37,200 | $1.1M |
| Engineers Gate Manager LP | 0.01% | Reduce -62.5% | 36,587 | $1.1M |
| Kornitzer Capital Management Inc. | 0.02% | Add +9.6% | 36,154 | $1.0M |
| Man Group plc | 0.00% | Add +124.0% | 36,094 | $1.0M |
| Natixis | 0.00% | New | 35,086 | $1.0M |
| Franklin Resources Inc. | 0.00% | Add +13085.0% | 35,072 | $1.0M |
| Russell Investments Group, Ltd. | 0.00% | Add +56.6% | 35,065 | $1.0M |
| Headlands Technologies LLC | 0.08% | New | 34,308 | $987K |
| Focus Partners Wealth | 0.00% | Add +4.2% | 34,303 | $987K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +9.1% | 32,814 | $944K |
| Truist Financial Corp. | 0.00% | Add +28.2% | 32,700 | $941K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +93.5% | 31,166 | $897K |
| Quantum Private Wealth, LLC | 0.25% | No change | 29,223 | $841K |
| Voloridge Investment Management, LLC | 0.00% | Reduce -84.4% | 26,695 | $768K |
| Journey Strategic Wealth LLC | 0.02% | New | 26,397 | $760K |
| Intech Investment Management LLC | 0.01% | Add +30.4% | 26,096 | $751K |
| Virtus Advisers, LLC | 0.36% | No change | 25,990 | $748K |
| MetLife Investment Management, LLC | 0.00% | No change | 25,405 | $731K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 24,264 | $698K |
| Tidal Investments LLC | 0.00% | Add +305.6% | 24,185 | $696K |
| Polen Capital Management LLC | 0.00% | Reduce -50.2% | 23,565 | $678K |
| Skyview Financial Group LLC | 0.68% | — | 23,038 | $663K |
| Alpine Woods Capital Investors, LLC | 0.16% | New | 23,026 | $663K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +25.6% | 22,360 | $644K |
| Canada Pension Plan Investment Board | 0.00% | Add +1716.7% | 21,800 | $627K |
| Globeflex Capital L P | 0.10% | New | 21,633 | $623K |
| Dorsey & Whitney Trust CO LLC | 0.03% | No change | 21,611 | $622K |
| STRS Ohio | 0.00% | Add +29.3% | 21,200 | $610K |
| Oxford Asset Management LLP | 0.22% | Add +271.5% | 21,186 | $610K |
| Credit Agricole S A | 0.00% | Reduce -2.3% | 21,045 | $606K |
| Teacher Retirement System of Texas | 0.00% | Add +59.7% | 20,999 | $604K |
| Mariner, LLC | 0.00% | Add +55.5% | 20,563 | $592K |
| Nissay Asset Management Corp. /Japan | 0.00% | Add +154.2% | 20,502 | $590K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -9.7% | 20,424 | $588K |
| Janus Henderson Group PLC | 0.00% | Reduce -48.8% | 20,134 | $580K |
| Hennion & Walsh Asset Management, Inc. | 0.02% | Reduce -1.8% | 19,355 | $557K |
| Axq Capital, LP | 0.12% | Add +146.9% | 18,931 | $545K |
| GoalVest Advisory LLC | 0.10% | Reduce -2.7% | 17,900 | $515K |
| TFC Financial Management, Inc. | 0.06% | Reduce -0.6% | 16,741 | $482K |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.00% | New | 16,500 | $475K |
| Advisory Services Network, LLC | 0.01% | Reduce -0.8% | 16,396 | $472K |
| Traynor Capital Management, Inc. | 0.03% | Reduce -1.5% | 16,157 | $465K |
| Truvestments Capital LLC | 0.08% | Add +14.2% | 15,450 | $445K |
| Fox Run Management, L.L.C. | 0.07% | Reduce -20.8% | 14,944 | $430K |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +12.4% | 13,277 | $419K |
| Voya Investment Management LLC | 0.00% | Add +0.9% | 14,363 | $413K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Reduce -82.1% | 14,181 | $408K |
| Brooklyn Investment Group | 0.02% | New | 13,863 | $405K |
| Boothbay Fund Management, LLC | 0.01% | New | 13,990 | $403K |
| Acadian Asset Management LLC | 0.00% | Add +781.6% | 14,061 | $402K |
| F/m Investments LLC | 0.01% | New | 13,470 | $388K |
| Entropy Technologies, LP | 0.02% | Add +29.4% | 13,457 | $387K |
| Quantinno Capital Management LP | 0.00% | Add +132.6% | 12,942 | $372K |
| Arizona State Retirement System | 0.00% | Reduce -2.8% | 12,524 | $360K |
| Diversified Trust Co. | 0.01% | Add +29.6% | 12,311 | $354K |
| ProShare Advisors LLC | 0.00% | Add +35.0% | 11,654 | $335K |
| HSBC Holdings PLC | 0.00% | Add +29.3% | 11,582 | $334K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Reduce -5.2% | 11,442 | $329K |
| Cetera Investment Advisers | 0.00% | Reduce -83.8% | 11,425 | $329K |
| State of Wisconsin Investment Board | 0.00% | Add +75.3% | 11,227 | $323K |
| Osaic Holdings, Inc. | 0.00% | Reduce -90.1% | 11,206 | $323K |
| Fund Advisors of America Inc | 0.29% | — | 11,053 | $318K |
| Round Rock Advisors LLC | 0.05% | New | 10,709 | $308K |
| XTX Topco Ltd | 0.01% | New | 10,551 | $304K |
| HighTower Advisors, LLC | 0.00% | Add +79.7% | 10,479 | $302K |
| ROI Financial Advisors, LLC | 0.17% | Add +7.6% | 10,133 | $292K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -27.4% | 10,097 | $291K |
| Graham Capital Management, L.P. | 0.01% | New | 10,066 | $290K |
| PDT Partners, LLC | 0.02% | New | 9,732 | $280K |
| KLP Kapitalforvaltning As | 0.00% | No change | 9,400 | $271K |
| WINTON GROUP Ltd | 0.01% | New | 9,385 | $270K |
| Assenagon Asset Management S.A. | 0.00% | Reduce -11.4% | 8,889 | $256K |
| US Bancorp \de | 0.00% | New | 8,760 | $252K |
| Principal Securities, Inc. | 0.00% | Add +8.7% | 8,636 | $249K |
| Handelsbanken Fonder AB | 0.00% | New | 8,600 | $248K |
| Precision Wealth Strategies, LLC | 0.08% | New | 8,137 | $234K |
| Jones Financial Companies LLLP | 0.00% | Add +34.5% | 7,851 | $226K |
| Cwm, LLC | 0.00% | Reduce -8.5% | 7,752 | $223K |
| City Center Advisors, LLC | 0.20% | New | 7,517 | $216K |
| AlphaQuest LLC | 0.01% | Add +358650.0% | 7,175 | $206K |
| D.A. Davidson & Co. | 0.00% | Add +11.7% | 7,008 | $202K |
| Kingsview Wealth Management, LLC | 0.00% | Add +23.4% | 6,995 | $201K |
| Kestra Advisory Services, LLC | 0.00% | Reduce -30.2% | 6,923 | $199K |
| State of Alaska, Department of Revenue | 0.00% | Add +192.8% | 6,146 | $176K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +114.3% | 5,625 | $162K |
| Ensign Peak Advisors, Inc | 0.00% | Reduce -48.6% | 4,550 | $131K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -6.2% | 4,260 | $123K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,652 | $105K |
| Group One Trading LLC | 0.00% | Reduce -93.5% | 3,041 | $88K |
| State of Wyoming | 0.01% | New | 3,021 | $87K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +78.2% | 2,891 | $83K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -21.0% | 2,693 | $78K |
| Federation des caisses Desjardins du Quebec | 0.00% | Add +275.0% | 2,625 | $76K |
| GPS Wealth Strategies Group, LLC | 0.06% | Reduce -80.1% | 2,275 | $65K |
| Caitong International Asset Management Co., Ltd | 0.01% | New | 2,092 | $60K |
| Global Retirement Partners, LLC | 0.00% | Reduce -38.4% | 1,978 | $57K |
| KBC Group NV | 0.00% | No change | 1,613 | $46K |
| Citigroup Inc. | 0.00% | Reduce -85.6% | 1,595 | $46K |
| Rockefeller Capital Management L.P. | 0.00% | Add +45.9% | 1,563 | $45K |
| Amalgamated Bank | 0.00% | Add +15.9% | 1,373 | $40K |
| Essential Partners LLC | 0.01% | Reduce -10.8% | 1,152 | $33K |
| GAMMA Investing LLC | 0.00% | Add +10.1% | 1,081 | $31K |
| Lodestone Wealth Management LLC | 0.01% | New | 1,054 | $30K |
| NewEdge Advisors, LLC | 0.00% | Reduce -92.0% | 771 | $22K |
| Versant Capital Management, Inc | 0.00% | Add +18.8% | 746 | $21K |
| Allworth Financial LP | 0.00% | Reduce -2.6% | 716 | $21K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.00% | Add +53.9% | 700 | $20K |
| Farther Finance Advisors, LLC | 0.00% | Add +11240.0% | 567 | $16K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 529 | $15K |
| CoreCap Advisors, LLC | 0.00% | New | 484 | $14K |
| SWAN Capital LLC | 0.00% | No change | 400 | $12K |
| Clearstead Trust, LLC | 0.00% | No change | 393 | $11K |
| Bullock Wealth Management Group | 0.00% | — | 307 | $9K |
| Sterling Capital Management LLC | 0.00% | Add +173.6% | 290 | $8K |
| SHP Wealth Management | 0.00% | — | 271 | $8K |
| Sunbelt Securities, Inc. | 0.00% | No change | 205 | $6K |
| Vermillion Wealth Management, Inc. | 0.00% | New | 200 | $6K |
| Signaturefd, LLC | 0.00% | Reduce -79.5% | 187 | $5K |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 170 | $5K |
| Greenline Wealth Management LLC | 0.01% | — | 169 | $5K |
| IFP Advisors, Inc | 0.00% | Add +579.2% | 163 | $5K |
| Spire Wealth Management | 0.00% | Reduce -27.6% | 157 | $5K |
| Parallel Advisors, LLC | 0.00% | No change | 146 | $4K |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -37.1% | 124 | $4K |
| National Bank of Canada | 0.00% | Add +1100.0% | 120 | $3K |
| Archer Investment Corp | 0.00% | No change | 100 | $3K |
| Trust Co. of Vermont | 0.00% | No change | 100 | $3K |
| TD Waterhouse Canada Inc. | 0.00% | No change | 100 | $3K |
| MAI Capital Management | 0.00% | New | 90 | $3K |
| WPG Advisers, LLC | 0.00% | Reduce -48.2% | 87 | $3K |
| Quarry LP | 0.00% | Add +16.4% | 71 | $2K |
| CIBC Private Wealth Group LLC | 0.00% | Add +176.0% | 69 | $2K |
| Smartleaf Asset Management LLC | 0.00% | Add +231.3% | 53 | $2K |
| Rothschild Investment LLC | 0.00% | Reduce -21.5% | 51 | $1K |
| Hager Investment Management Services, LLC | 0.00% | No change | 50 | $1K |
| Private Trust Co. NA | 0.00% | Reduce -33.3% | 50 | $1K |
| Whittier Trust Co. of Nevada Inc. | 0.00% | No change | 40 | $1K |
| Federated Hermes, Inc. | 0.00% | No change | 34 | $979 |
| Fortitude Family Office, LLC | 0.00% | No change | 33 | $950 |
| Keating Financial Advisory Services, Inc. | 0.00% | — | 13 | $374 |
| JFS Wealth Advisors, LLC | 0.00% | No change | 10 | $288 |
| True Wealth Design, LLC | 0.00% | No change | 7 | $202 |
| Arax Advisory Partners | 0.00% | Reduce -99.8% | 7 | $201 |
| SJS Investment Consulting Inc. | 0.00% | New | 5 | $144 |
| CENTRAL TRUST Co | 0.00% | New | 4 | $116 |
| MassMutual Private Wealth & Trust, FSB | 0.00% | No change | 3 | $86 |
| Turning Point Benefit Group, Inc. | 0.00% | No change | 2 | $57 |
| Covestor Ltd | 0.00% | No change | 4 | $0 |
"% of holder's portfolio" is AMSC's weight in each manager's 13F, not the share of American Superconductor Corp. the manager owns.