ESS TECH INC (GWHWS)
Institutional ownership reported to the SEC as of Q2 2026, across 19 quarters.
11
Reporting holders
$10.5K
Reported value
13.2%
Held as options
+0
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| HEIGHTS CAPITAL MANAGEMENT, INC | $2.8K | 510,721 | 0.00% | 8q | -12.9% |
| LMR Partners LLP | $2.2K | 391,284 | 0.00% | 16q | HELD |
| Saba Capital Management, L.P. | $1.7K | 303,596 | 0.00% | 16q | HELD |
| OpenArc Corporate Advisory, LLC | $1.4K | 253,555 | 0.00% | 2q | HELD |
| MILLENNIUM MANAGEMENT LLC | $1.4K | options only | 0.00% | 19q | OPTIONS |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $592 | 107,548 | 0.00% | 6q | -30.3% |
| JANE STREET GROUP, LLC | $321 | 58,356 | 0.00% | 19q | HELD |
| Marathon Trading Investment Management LLC | $111 | 20,130 | 0.00% | 19q | HELD |
| WOLVERINE ASSET MANAGEMENT LLC | $27 | 4,834 | 0.00% | 13q | +33.0% |
| Clear Street Group Inc. | $3 | 600 | 0.00% | 4q | +200.0% |
| Vestcor Inc | $1 | 105,182 | 0.00% | 19q | HELD |
| TORONTO DOMINION BANK | $0 | 100 | 0.00% | new | NEW |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 11 | $10.5K | 1,650,724 | 1 | 2 | 2 | 13.2% |
| Q1 2026 | 11 | $44.7K | 1,821,297 | 1 | 1 | 2 | 11.3% |
| Q4 2025 | 13 | $97.4K | 1,655,467 | 2 | 2 | 2 | 13.1% |
| Q3 2025 | 12 | $77.2K | 1,578,350 | 1 | 0 | 1 | 13.6% |
| Q2 2025 | 12 | $72.5K | 1,572,494 | 0 | 2 | 4 | 13.7% |
| Q1 2025 | 13 | $146.1K | 1,510,633 | 2 | 2 | 1 | 13.7% |
| Q4 2024 | 11 | $113.7K | 1,487,996 | 0 | 2 | 2 | 14.3% |
| Q3 2024 | 11 | $67.0K | 1,055,301 | 0 | 2 | 1 | 38.7% |
| Q2 2024 | 13 | $121.8K | 1,526,662 | 0 | 2 | 0 | 14.3% |
| Q1 2024 | 13 | $133.4K | 1,517,354 | 1 | 0 | 1 | 14.1% |
| Q4 2023 | 12 | $144.4K | 1,517,700 | 2 | 2 | 2 | 14.1% |
| Q3 2023 | 12 | $438.9K | 2,057,589 | 0 | 2 | 1 | 11.1% |
| Q2 2023 | 12 | $518.4K | 1,963,805 | 1 | 0 | 1 | 11.3% |
| Q1 2023 | 13 | $754.3K | 2,119,330 | 1 | 0 | 1 | 0.0% |
| Q4 2022 | 12 | $1.1M | 2,265,628 | 2 | 1 | 1 | 0.0% |
| Q3 2022 | 18 | $3.7M | 3,102,591 | 4 | 1 | 2 | 5.2% |
| Q2 2022 | 18 | $1.4M | 3,937,072 | 0 | 0 | 5 | 6.2% |
| Q1 2022 | 19 | $5.1M | 4,496,723 | 4 | 2 | 3 | 5.5% |
| Q4 2021 | 21 | $12.3M | 4,626,155 | 19 | 0 | 0 | 5.4% |