American Superconductor Corp (AMSC) Ownership & Trading Activity
Institutional holders, insider transactions, and congressional trades for AMSC. 13F holdings as of 2026-06-30.
In 13F filings for the quarter ended June 30, 2026, 268 institutions reported holding AMSC, with 35.1 million shares worth $1.5 billion in aggregate.
Top Institutional Holders
| Institution | Shares | Value | Change |
|---|---|---|---|
| BlackRock | 4,095,371 | $170M | INCREASED |
| Vanguard | 3,853,877 | $160M | DECREASED |
| Barrow Hanley Mewhinney & Strauss | 1,704,006 | $71M | INCREASED |
| UBS Group | 1,520,357 | $63M | INCREASED |
| State Street | 1,358,225 | $56M | INCREASED |
Full institutional holdings, insider history, and congressional trades for American Superconductor Corp on SentiSense.