AMSC · Company research
American Superconductor Corp (AMSC): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
80records availableOther
Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| HRT FINANCIAL LP | 1475597 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 298420 | 12387 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 122723 | 4973532 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| FOX RUN MANAGEMENT, L.L.C. | 1533457 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11407 | 473505 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| Keating Financial Advisory Services, Inc. | 2103443 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19 | 789 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Aster Capital Management (DIFC) Ltd | 2040915 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18809 | 690102 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RHL GROUP, LLC | 2066311 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 42 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| KLP KAPITALFORVALTNING AS | 1717443 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10100 | 419251 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Ameritas Investment Partners, Inc. | 1055980 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4277 | 177538 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| EverSource Wealth Advisors, LLC | 1710537 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6 | 249 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| Assenagon Asset Management S.A. | 1546007 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6224 | 258358 | — | — | — | Jul 8, 2026 | SEC_13F_DATASET |
| NORTHERN TRUST CORP | 73124 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18271 | 758429 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| MERCER GLOBAL ADVISORS INC /ADV | 853758 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5549 | 230339 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| OPPENHEIMER & CO INC | 822581 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30060 | 1247791 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| MassMutual Private Wealth & Trust, FSB | 1103653 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 21 | 872 | — | — | — | Jul 2, 2026 | SEC_13F_DATASET |
| Verity Asset Management, Inc. | 1597298 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16246 | 674371 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| MACKENZIE FINANCIAL CORP | 919859 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 164450 | 6826319 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Quarry LP | 1965207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 95 | 3943 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Fund Advisors of America Inc/FL | 2116327 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7809 | 324152 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Amundi | 1330387 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 63251 | 2625549 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| VANGUARD FIDUCIARY TRUST CO | 933478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 337929 | 14027433 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| KORNITZER CAPITAL MANAGEMENT INC /KS | 898358 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31669 | 1314580 | — | — | — | Jul 31, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3024 | 125526 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 1177206 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 181 | 7513 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 29343 | 1218028 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| GMT Capital Corp | 1106191 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 108066 | 4485820 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| DIMENSIONAL FUND ADVISORS LP | 354204 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 604168 | 25079014 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| SEI INVESTMENTS CO | 350894 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 82479 | 3423703 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Legal & General Group Plc | 764068 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 743002 | 30842012 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Ensign Peak Advisors, Inc | 1454984 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3050 | 126606 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Yorktown Management & Research Co Inc | 1313559 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6400 | 265664 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Corient Private Wealth LP | 1948780 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5372 | 222993 | — | — | — | Aug 27, 2026 | SEC_13F_DATASET |
| Baird Financial Group, Inc. | 1648711 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 155739 | 6464726 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Round Rock Advisors LLC | 1846991 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26431 | 1097151 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| ALLIANCEBERNSTEIN L.P. | 1109448 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 54720 | 1852272 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Versant Capital Management, Inc | 1735057 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 665 | 27604 | — | — | — | Jul 2, 2026 | SEC_13F_DATASET |
| Bank of New York Mellon Corp | 1390777 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 90313 | 3748893 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| T. Rowe Price Investment Management, Inc. | 1897612 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 306182 | 12710 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Quantinno Capital Management LP | 1759654 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17067 | 708451 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Traynor Capital Management, Inc. | 1666786 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16489 | 684464 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| Wellington Shields & Co., LLC | 1506073 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 67 | 2781 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Orion Porfolio Solutions, LLC | 1360533 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6318 | 262260 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Merit Financial Group, LLC | 1621225 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 34834 | 1445959 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| AQR CAPITAL MANAGEMENT LLC | 1167557 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 192099 | 7974029 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Essential Partners LLC | 2136442 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 387 | 16064 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Fortitude Family Office, LLC | 1950506 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 136 | 5645 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| Kilter Group LLC | 2058915 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 63 | 2616 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 2057170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19427 | 806414 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Spire Wealth Management | 1858740 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 157 | 6517 | — | — | — | Jul 15, 2026 | SEC_13F_DATASET |
| Farther Finance Advisors, LLC | 1992825 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 88 | 3639 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| RHUMBLINE ADVISERS | 1115418 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 63572 | 2638864 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| ALPS ADVISORS INC | 1376113 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 86387 | 3585924 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1368163 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 24343 | 1010478 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Allworth Financial LP | 1555170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1025 | 42538 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1418863 | 58897003 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Cambridge Investment Research Advisors, Inc. | 1419186 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 60564 | 2514 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Bullock Wealth Management Group | 2067581 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 190 | 7585 | — | — | — | Aug 19, 2026 | SEC_13F_DATASET |
| SWAN Capital LLC | 1952722 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 550 | 22831 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Retirement Planning Group, LLC | 1508195 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11000 | 456610 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1935770 | 80353813 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Covestor Ltd | 1909846 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41348 | 1716 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| Steward Partners Investment Advisory, LLC | 1723397 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 810 | 33623 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Stephens Investment Management Group LLC | 1314440 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 402762 | 16718651 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Nuveen, LLC | 1871926 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 473509 | 19655359 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| ACORN FINANCIAL ADVISORY SERVICES INC /ADV | 1018561 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5623 | 233411 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| IMC-Chicago, LLC | 1452861 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 226800 | 9414468 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| EntryPoint Capital, LLC | 1992519 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6312 | 262011 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 34068 | 1414000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| XTX Topco Ltd | 1828301 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30848 | 1280500 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PROMETHIUM ADVISORS,LLC | 2034073 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5000 | 207550 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| Basecamp Wealth Advisors LLC | 2115254 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 27 | 1121 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Freestone Grove Partners LP | 2007591 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2228 | 92484 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PNC Financial Services Group, Inc. | 713676 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 258 | 10710 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| State of Alaska, Department of Revenue | 1370102 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8047 | 334 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| Quadrature Capital Ltd | 1651424 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 37682 | 1564180 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| AMERIPRISE FINANCIAL INC | 820027 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 75655 | 3140439 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Allspring Global Investments Holdings, LLC | 1890906 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 130527 | 5210638 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Arax Advisory Partners | 1586767 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4045 | 167909 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| ExodusPoint Capital Management, LP | 1736225 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8325 | 345571 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Catalyst Funds Management Pty Ltd | 1896150 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9000 | 373590 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Legato Capital Management LLC | 1442641 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 41369 | 1717227 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.