American Superconductor Corp /De/ (NASDAQ:AMSC) has 234 institutional investors that have filed 13F reports for the period ending December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Dec, 2025 | 3,750,403 | 121,107 | 3.34% | $107,936,611.00 |
| VANGUARD GROUP INC | 31 Dec, 2025 | 3,526,632 | 576,831 | 19.55% | $101,496,470.00 |
| Goldman Sachs Group Inc | 31 Dec, 2025 | 1,564,574 | 390,467 | 33.26% | $45,028,440.00 |
| BAILLIE GIFFORD & CO | 31 Dec, 2025 | 1,506,841 | 79,509 | 5.57% | $43,366,884.00 |
| State Street Corp | 31 Dec, 2025 | 1,192,093 | 56,215 | 4.95% | $34,308,437.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Dec, 2025 | 1,090,710 | 20,855 | 1.95% | $31,396,276.00 |
| Atreides Management, LP | 31 Dec, 2025 | 1,044,193 | 272,698 | 35.35% | $30,051,875.00 |
| Nuveen, LLC | 31 Dec, 2025 | 960,968 | 134,816 | 16.32% | $27,656,659.00 |
| OBERWEIS ASSET MANAGEMENT INC/ | 31 Dec, 2025 | 835,900 | 170,200 | 25.57% | $24,057,202.00 |
| EMERALD ADVISERS, LLC | 31 Dec, 2025 | 757,568 | 236,385 | 45.36% | $21,802,807.00 |
| AWM Investment Company, Inc. | 31 Dec, 2025 | 754,220 | 8,750 | 1.17% | $21,706,452.00 |
| UBS Group AG | 31 Dec, 2025 | 744,563 | 550,829 | 284.32% | $21,428,523.00 |
| Morgan Stanley | 31 Dec, 2025 | 705,442 | 369,677 | 110.10% | $20,302,656.00 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 31 Dec, 2025 | 683,202 | -77,255 | -10.16% | $19,662,554.00 |
| FIRST TRUST ADVISORS LP | 31 Dec, 2025 | 682,967 | 224,576 | 48.99% | $19,655,790.00 |
| Telemark Asset Management, LLC | 31 Dec, 2025 | 619,900 | -70,100 | -10.16% | $17,840,722.00 |
| Qube Research & Technologies Ltd | 31 Dec, 2025 | 599,006 | 341,411 | 132.54% | $17,239,393.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Dec, 2025 | 540,253 | 68,769 | 14.59% | $15,549,050.00 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 31 Dec, 2025 | 499,984 | -718,960 | -58.98% | $14,389,540.00 |
| ALGERT GLOBAL LLC | 31 Dec, 2025 | 460,771 | 172,891 | 60.06% | $13,261.00 |