American Superconductor Corporation · NASDAQ:AMSC
American Superconductor Corporation shareholders
As of Jun 30, 2026, 269 institutions reported holding American Superconductor Corporation, 73.9% of its shares. Largest: BlackRock, Vanguard and Barrow Hanley Mewhinney & Strauss LLC. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of American Superconductor Corporation | Change | Filed |
|---|---|---|---|---|
| BlackRock | 4.1M | 8.5% | +113K | Aug 7, 2026 |
| Vanguard | 3.85M | 8.0% | −283K | Aug 13, 2026 |
| Barrow Hanley Mewhinney & Strauss LLC | 1.7M | 3.5% | +564K | Aug 12, 2026 |
| UBS | 1.52M | 3.1% | +832K | Aug 13, 2026 |
| State Street | 1.36M | 2.8% | +97,154 | Aug 7, 2026 |
| Goldman Sachs | 1.29M | 2.7% | +585K | Aug 14, 2026 |
| Geode Capital | 1.24M | 2.6% | +74,046 | Aug 12, 2026 |
| First Trust | 1.17M | 2.4% | +390K | Aug 11, 2026 |
| Oberweis Asset Management Inc/ | 988K | 2.0% | +138K | Aug 14, 2026 |
| AWM Investment Company, Inc. | 952K | 2.0% | +150K | Aug 14, 2026 |