ESS Tech, Inc.
GWHWW- Exchange
- OTC
- Industry
- Miscellaneous Electrical Machinery, Equipment & Supplies
- SEC CIK
- 0001819438
In the last 90 days, ESS Tech, Inc. insiders filed 0 open-market purchases and 2 sales; 11 institutions reported holding it in 13F filings for Q2 2026, worth $10.1K in total; no superinvestor holds it.
Other share classesGWH
13F holders, Q2 2026
Institutional positions in ESS Tech, Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 11
- −1 vs. Q1 2026
- Shares held
- 1.76M
- −184.5K (−9.5%) vs. Q1 2026
- Total value
- $10.1K
- −$32.6K (−76.4%) vs. Q1 2026
- New holders
- 1
- 2 more added
- Sold out
- 2
- 2 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GWHWW on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 11 | $10.1K |
| Q1 2026 | 12 | $42.7K |
| Q4 2025 | 13 | $89.6K |
| Q3 2025 | 12 | $70.7K |
| Q2 2025 | 12 | $66.6K |
| Q1 2025 | 13 | $136.0K |
| Q4 2024 | 11 | $104.5K |
| Q3 2024 | 11 | $45.1K |
| Q2 2024 | 15 | $113.3K |
| Q1 2024 | 15 | $124.6K |
| Q4 2023 | 14 | $135.0K |
| Q3 2023 | 14 | $417.1K |
| Q2 2023 | 14 | $491.9K |
| Q1 2023 | 14 | $433.2K |
| Q4 2022 | 16 | $583.8K |
| Q3 2022 | 16 | $2.38M |
| Q2 2022 | 16 | $1.34M |
| Q1 2022 | 17 | $4.42M |
| Q4 2021 | 19 | $11.7M |
| Q3 2021 | 23 | $3.44M |
| Q2 2021 | 28 | $5.99M |
| Q1 2021 | 29 | $3.31M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Toronto Dominion Bank | 100 | $0 | 0.00% | +100 | New |
| Clear Street Group Inc. | 600 | $3 | 0.00% | +400+200.0% | Added |
| Wolverine Asset Management LLC | 4,834 | $27 | 0.00% | +1,200+33.0% | Added |
| Marathon Trading Investment Management LLC | 20,130 | $111 | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 58,356 | $321 | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 107,548 | $592 | 0.00% | −46,776−30.3% | Reduced |
| Vestcor Inc | 105,182 | $1.00K | 0.00% | 00.0% | Unchanged |
| OpenArc Corporate Advisory, LLC | 253,555 | $1.40K | 0.00% | 00.0% | Unchanged |
| Saba Capital Management, L.P. | 303,596 | $1.67K | 0.00% | 00.0% | Unchanged |
| LMR Partners LLP | 391,284 | $2.15K | 0.00% | 00.0% | Unchanged |
| Heights Capital Management, Inc | 510,721 | $2.81K | 0.00% | −75,497−12.9% | Reduced |
| Greenhouse Wealth Management, LLC | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −13,891−100.0% | Sold out |