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, Q1 2026
Institutional positions in ESS Tech, Inc. as of Mar 31, 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
- 12
- −1 vs. Q4 2025
- Shares held
- 1.94M
- +179.7K (+10.2%) vs. Q4 2025
- Total value
- $42.7K
- −$46.9K (−52.4%) vs. Q4 2025
- New holders
- 2
- 1 more added
- Sold out
- 3
- 2 more reduced
Compare with Q4 2025: 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, Q1 2026
Shares, value and share of portfolio for each institution holding ESS Tech, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Virtu Financial LLC | 13,891 | $0 | 0.00% | +13,891 | New |
| Clear Street Group Inc. | 200 | $4 | 0.00% | 00.0% | Unchanged |
| Wolverine Asset Management LLC | 3,634 | $73 | 0.00% | +1,300+55.7% | Added |
| Marathon Trading Investment Management LLC | 20,130 | $453 | 0.00% | 00.0% | Unchanged |
| Greenhouse Wealth Management, LLC | 50,000 | $1.13K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 58,356 | $1.47K | 0.00% | −581−1.0% | Reduced |
| Vestcor Inc | 105,182 | $3.00K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 154,324 | $3.12K | 0.00% | −82,923−35.0% | Reduced |
| OpenArc Corporate Advisory, LLC | 253,555 | $5.71K | 0.00% | +253,555 | New |
| LMR Partners LLP | 391,284 | $7.90K | 0.00% | 00.0% | Unchanged |
| Saba Capital Management, L.P. | 303,596 | $7.99K | 0.00% | 00.0% | Unchanged |
| Heights Capital Management, Inc | 586,218 | $11.8K | 0.00% | 00.0% | Unchanged |
| Navalign, LLC | 0 | $0 | 0.00% | −3,600−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −1,632−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −289−100.0% | Sold out |