Who Owns AMERICAN SUPERCONDUCTOR CORP (AMSC)? -- Institutional Holders (2026-06-30)
305 institutions reported holding $1.57B of AMERICAN SUPERCONDUCTOR CORP (AMSC) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($170.0M), VANGUARD GROUP INC ($160.0M), BARROW HANLEY MEWHINNEY & STRAUSS LLC ($70.7M), UBS Group AG ($59.3M), STATE STREET CORP ($56.4M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | BlackRock, Inc. | $170.0M | 4.1M | Added |
| 2 | VANGUARD GROUP INC | $160.0M | 3.9M | Trimmed |
| 3 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | $70.7M | 1.7M | Added |
| 4 | UBS Group AG | $59.3M | 1.4M | Added |
| 5 | STATE STREET CORP | $56.4M | 1.4M | Added |
| 6 | GOLDMAN SACHS GROUP INC | $53.7M | 1.3M | Added |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $51.6M | 1.2M | Added |
| 8 | FIRST TRUST ADVISORS LP | $48.5M | 1.2M | Added |
| 9 | OBERWEIS ASSET MANAGEMENT INC/ | $41.0M | 987,500 | Added |
| 10 | JANE STREET GROUP, LLC | $40.0M | 964,219 | Added |
| 11 | AWM Investment Company, Inc. | $39.5M | 951,604 | Added |
| 12 | BAILLIE GIFFORD & CO | $38.7M | 933,308 | Trimmed |
| 13 | EMERALD ADVISERS, LLC | $35.0M | 843,956 | Added |
| 14 | Legal & General Group Plc | $31.4M | 756,863 | Added |
| 15 | DIMENSIONAL FUND ADVISORS LP | $26.8M | 645,991 | Trimmed |
| 16 | MORGAN STANLEY | $26.4M | 635,833 | Added |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $26.1M | 628,735 | Added |
| 18 | Nuveen, LLC | $26.1M | 628,406 | Trimmed |
| 19 | Telemark Asset Management, LLC | $24.9M | 600,000 | Hold |
| 20 | ROYCE & ASSOCIATES LP | $23.1M | 555,821 | Added |
| 21 | EMERALD MUTUAL FUND ADVISERS TRUST | $22.4M | 538,955 | Added |
| 22 | NORTHERN TRUST CORP | $18.0M | 433,792 | Added |
| 23 | CITADEL ADVISORS LLC | $17.8M | 429,628 | Trimmed |
| 24 | Ranger Investment Management, L.P. | $16.8M | 405,266 | New |
| 25 | Stephens Investment Management Group LLC | $16.7M | 402,762 | Added |
Source: SEC Form 13F filings · as of 2026-06-30