GWH ESS Tech, Inc.
ESS Tech, Inc. (GWH) Institutional Ownership
What the institutions did with GWH last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| SOFTBANK GROUP CORP. | 2.4M | 32.8% |
| Alyeska Investment Group, L.P. | 1.4M | 19.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 638.9K | 8.8% |
| UBS Group AG | 602.6K | 8.3% |
| Arosa Capital Management LP | 550.0K | 7.5% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 548.6K | 7.5% |
| Shay Capital LLC | 210.1K | 2.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 210.0K | 2.9% |
| BlackRock, Inc. | 133.9K | 1.8% |
| VANGUARD FIDUCIARY TRUST CO | 129.9K | 1.8% |
| Green Alpha Advisors, LLC | 115.8K | 1.6% |
| Pathstone Holdings, LLC | 89.0K | 1.2% |
| FMR LLC | 52.5K | 0.7% |
| NORTHERN TRUST CORP | 47.5K | 0.7% |
| STATE STREET CORP | 47.0K | 0.6% |
| PKS Advisory Services, LLC | 24.0K | 0.3% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 20.0K | 0.3% |
| JPMORGAN CHASE & CO | 19.9K | 0.3% |
| PRIMORIS WEALTH ADVISORS, LLC | 16.5K | 0.2% |
| RENAISSANCE TECHNOLOGIES LLC | 12.7K | 0.2% |
| GSA CAPITAL PARTNERS LLP | 11.0K | 0.2% |
| OSAIC HOLDINGS, INC. | 8.4K | 0.1% |
| MORGAN STANLEY | 4.6K | 0.1% |
| Golden State Wealth Management, LLC | 2.7K | 0.0% |
| Rockefeller Capital Management L.P. | 2.0K | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| UBS Group AG | Increased | 149.3K | 602.6K | +453.3K |
| HEIGHTS CAPITAL MANAGEMENT, INC | Reduced | 963.5K | 548.6K | -414.9K |
| Arosa Capital Management LP | Reduced | 910.0K | 550.0K | -360.0K |
| GSA CAPITAL PARTNERS LLP | Reduced | 145.6K | 11.0K | -134.5K |
| BlackRock, Inc. | Increased | 50.4K | 133.9K | +83.5K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 69.4K | 129.9K | +60.5K |
| Shay Capital LLC | Increased | 180.0K | 210.1K | +30.1K |
| PKS Advisory Services, LLC | New | 0 | 24.0K | +24.0K |
| Virtu Financial LLC | Sold Out | 18.7K | 0 | -18.7K |
| TWO SIGMA SECURITIES, LLC | Sold Out | 16.6K | 0 | -16.6K |
| NORTHERN TRUST CORP | Increased | 31.3K | 47.5K | +16.2K |
| Resurgent Financial Advisors LLC | Sold Out | 15.6K | 0 | -15.6K |
| LPL Financial LLC | Sold Out | 14.4K | 0 | -14.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 223.6K | 210.0K | -13.5K |
| RENAISSANCE TECHNOLOGIES LLC | New | 0 | 12.7K | +12.7K |
| JPMORGAN CHASE & CO | Reduced | 31.5K | 19.9K | -11.6K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 634.7K | 638.9K | +4.2K |
| OSAIC HOLDINGS, INC. | Increased | 6.2K | 8.4K | +2.1K |
| Pathstone Holdings, LLC | Increased | 87.4K | 89.0K | +1.5K |
| Green Alpha Advisors, LLC | Increased | 114.6K | 115.8K | +1.2K |
| BARCLAYS PLC | New | 0 | 639 | +639 |
| Missouri Trust & Investment Co | Sold Out | 633 | 0 | -633 |
| SBI Securities Co., Ltd. | Increased | 380 | 981 | +601 |
| HARBOUR INVESTMENTS, INC. | Increased | 149 | 243 | +94 |
| Archer Investment Corp | Increased | 68 | 136 | +68 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.