Who Owns ESS Tech Inc (GWH)? -- Institutional Holders (2026-06-30)
52 institutions reported holding $6.9M of ESS Tech Inc (GWH) in SEC 13F filings for 2026-06-30. Largest institutional holders: SOFTBANK GROUP CORP. ($2.3M), Alyeska Investment Group, L.P. ($1.3M), VANGUARD GROUP INC ($731,605), UBS Group AG ($572,477), Arosa Capital Management LP ($522,500). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | SOFTBANK GROUP CORP. | $2.3M | 2.4M | Hold |
| 2 | Alyeska Investment Group, L.P. | $1.3M | 1.4M | Hold |
| 3 | VANGUARD GROUP INC | $731,605 | 770,111 | Added |
| 4 | UBS Group AG | $572,477 | 602,607 | Added |
| 5 | Arosa Capital Management LP | $522,500 | 550,000 | Trimmed |
| 6 | HEIGHTS CAPITAL MANAGEMENT, INC | $521,190 | 548,621 | Trimmed |
| 7 | Shay Capital LLC | $199,639 | 210,146 | Added |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $199,547 | 210,037 | Trimmed |
| 9 | BlackRock, Inc. | $127,174 | 133,867 | Added |
| 10 | Green Alpha Advisors, LLC | $109,986 | 115,775 | Added |
| 11 | Pathstone Holdings, LLC | $85,070 | 88,982 | Added |
| 12 | FMR LLC | $49,861 | 52,485 | Trimmed |
| 13 | NORTHERN TRUST CORP | $45,155 | 47,532 | Added |
| 14 | STATE STREET CORP | $44,626 | 46,975 | Hold |
| 15 | PKS Advisory Services, LLC | $22,800 | 24,000 | New |
| 16 | JPMORGAN CHASE & CO | $19,616 | 19,896 | Trimmed |
| 17 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $19,000 | 20,000 | Hold |
| 18 | PRIMORIS WEALTH ADVISORS, LLC | $15,675 | 16,500 | Hold |
| 19 | RENAISSANCE TECHNOLOGIES LLC | $12,065 | 12,700 | New |
| 20 | GSA CAPITAL PARTNERS LLP | $10,000 | 11,045 | Trimmed |
| 21 | OSAIC HOLDINGS, INC. | $7,938 | 8,359 | Added |
| 22 | MORGAN STANLEY | $4,333 | 4,561 | Trimmed |
| 23 | Golden State Wealth Management, LLC | $2,572 | 2,707 | Hold |
| 24 | Rockefeller Capital Management L.P. | $1,923 | 2,024 | Hold |
| 25 | SBI Securities Co., Ltd. | $932 | 981 | Added |
Source: SEC Form 13F filings · as of 2026-06-30