NYSE · CIK 0001819438
GWH ESS Tech, Inc.
Insider trading from SEC Form 4. Last filing Jun 8, 2026. Close $0.11 on Oct 9, 2026, +8% from the 52-week low and -88% from the high.
ESS Tech, Inc. (GWH) has 31 SEC Form 4 filings on file from 13 insiders, the latest filed on Jun 8, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
6 open-market trades have been scored at GWH. The newest: Drew P Buckley (CEO) bought $26k of stock on Jun 4, 2026, filed Jun 8, 2026, scored 38 (weak). 2 insiders sold within 14 days of each other around May 21, 2026.
GWH closed at $0.11 on Oct 9, 2026, 8% above its 52-week low and 88% below its 52-week high.
5 Form 144 notices of planned sales are on file, the latest filed Sep 25, 2025.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at ESS Tech, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 38Weak | Drew P Buckley CEO buy | $26k 25,000 shares | - | - | |
| 23Weak | Kelly F. Goodman SEE REMARKS sell | $4,850 5,233 shares | -2% | - | |
| 30Weak | Kate Eileen Suhadolnik Chief Financial Officer sell | $3,389 3,657 shares | -2% | - | |
| 23Weak | Kelly F. Goodman SEE REMARKS sell | $3,494 2,269 shares | -1% | - | |
| 30Weak | Kate Eileen Suhadolnik Chief Financial Officer sell | $1,141 741 shares | -0% | - | |
| 20Weak | Eric P. Dresselhuys Chief Executive Officer buy | $5,227 1,000 shares | +1% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 25, 2025 | ANTHONY A RABB Officer | 3,878 0.03% of outstanding | $6,668 | Sep 25, 2025 | $33k |
| Sep 17, 2025 | ANTHONY A RABB Officer | 3,000 0.02% of outstanding | $4,830 | Sep 17, 2025 | $28k |
| Sep 10, 2025 | ANTHONY A RABB Officer | 4,774 0.03% of outstanding | $6,791 | Sep 10, 2025 | $22k |
| Sep 4, 2025 | ANTHONY A RABB Officer | 5,001 0.04% of outstanding | $6,375 | Sep 4, 2025 | $15k |
| Aug 29, 2025 | ANTHONY A RABB Officer | 5,062 0.04% of outstanding | $7,539 | Aug 29, 2025 | $7,673 |
Transactions
Every row filed, 44 in all.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 4, 2026 | Drew P Buckley CEO | POpen-market purchase Common Stock | +25,000 | $1.03 | $26k | 25,000 | Jun 8, 2026 |
| May 29, 2026 | Sandeep Nijhawan director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 42,563 | Jun 2, 2026 |
| May 29, 2026 | Rich Hossfeld director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 41,372 | Jun 2, 2026 |
| May 29, 2026 | Alexi Wellman director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 52,399 | Jun 2, 2026 |
| May 29, 2026 | Raffi Garabedian director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 53,185 | Jun 2, 2026 |
| May 29, 2026 | Harry Quarls director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 68,769 | Jun 2, 2026 |
| May 21, 2026 | Kelly F. Goodman SEE REMARKS | SOpen-market sale Common Stock | -2,482 | $0.92 | $2,279 | 213,371 | May 26, 2026 |
| May 21, 2026 | Kate Eileen Suhadolnik Chief Financial Officer | SOpen-market sale Common Stock | -1,735 | $0.92 | $1,593 | 162,679 | May 26, 2026 |
| May 22, 2026 | Kelly F. Goodman SEE REMARKS | SOpen-market sale Common Stock | -2,751 | $0.93 | $2,571 | 210,620 | May 26, 2026 |
| May 22, 2026 | Kate Eileen Suhadolnik Chief Financial Officer | SOpen-market sale Common Stock | -1,922 | $0.93 | $1,796 | 160,757 | May 26, 2026 |
| Feb 20, 2026 | Kelly F. Goodman SEE REMARKS | SOpen-market sale Common Stock | -2,269 | $1.54 | $3,494 | 215,853 | Feb 26, 2026 |
| Feb 20, 2026 | Kate Eileen Suhadolnik Chief Financial Officer | SOpen-market sale Common Stock | -741 | $1.54 | $1,141 | 164,414 | Feb 26, 2026 |
| Feb 13, 2026 | Kelly F. Goodman SEE REMARKS | AGrant or award Common Stock | +137,500 | $0.00 | $0 | 218,122 | Feb 26, 2026 |
| Feb 13, 2026 | Kate Eileen Suhadolnik Chief Financial Officer | AGrant or award Common Stock | +137,500 | $0.00 | $0 | 165,155 | Feb 26, 2026 |
| Feb 13, 2026 | Kelly F. Goodman SEE REMARKS | AGrant or award Stock Option (right to buy)derivative | +137,500 | $0.00 | $0 | 137,500 | Feb 26, 2026 |
| Feb 13, 2026 | Kate Eileen Suhadolnik Chief Financial Officer | AGrant or award Stock Option (right to buy)derivative | +137,500 | $0.00 | $0 | 137,500 | Feb 26, 2026 |
| Jan 28, 2026 | Drew P Buckley CEO | AGrant or award Stock Option (right to buy)derivative | +550,000 | $0.00 | $0 | 550,000 | Jan 29, 2026 |
| Nov 20, 2025 | Kelly F. Goodman Interim CEO | FTax withholding Common Stock | -4,513 | $2.40 | $11k | 80,622 | Nov 21, 2025 |
| Nov 20, 2025 | Kate Eileen Suhadolnik Interim CFO | FTax withholding Common Stock | -1,299 | $2.40 | $3,118 | 27,655 | Nov 21, 2025 |
| Oct 13, 2025 | Rich Hossfeld director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 27,859 | Oct 15, 2025 |
| Oct 13, 2025 | Kyle Teamey director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 38,740 | Oct 15, 2025 |
| Oct 13, 2025 | Alexi Wellman director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 38,886 | Oct 15, 2025 |
| Oct 13, 2025 | Harry Quarls director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 13,513 | Oct 15, 2025 |
| Oct 13, 2025 | Sandeep Nijhawan director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 29,050 | Oct 15, 2025 |
| Oct 13, 2025 | Michael R Niggli director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 90,825 | Oct 15, 2025 |
| Oct 13, 2025 | Raffi Garabedian director | AGrant or award Common Stock | +13,513 | $0.00 | $0 | 39,672 | Oct 15, 2025 |
| Aug 18, 2025 | Jigish Dhirajlal Trivedi COO | AGrant or award Common Stock | +275,000 | $0.00 | $0 | 275,000 | Sep 5, 2025 |
| Aug 20, 2025 | Kate Eileen Suhadolnik Interim CFO | FTax withholding Common Stock | -1,232 | $1.61 | $1,984 | 28,954 | Aug 29, 2025 |
| Aug 20, 2025 | Kelly F. Goodman Interim CEO | FTax withholding Common Stock | -4,326 | $1.61 | $6,965 | 85,135 | Aug 21, 2025 |
| May 20, 2025 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -2,741 | $1.96 | $5,372 | 109,392 | May 22, 2025 |
| May 20, 2025 | Kelly F. Goodman Interim CEO | FTax withholding Common Stock | -2,164 | $1.96 | $4,241 | 89,461 | May 22, 2025 |
| May 20, 2023 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -100 | $18.00 | $1,800 | 82,729 | Apr 15, 2025 |
| Apr 13, 2025 | Kelly F. Goodman Interim CEO | AGrant or award Common Stock | +36,930 | $0.00 | $0 | 91,625 | Apr 15, 2025 |
| Aug 20, 2023 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -106 | $18.15 | $1,924 | 82,623 | Apr 15, 2025 |
| Nov 20, 2023 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -4,298 | $17.55 | $75k | 78,325 | Apr 15, 2025 |
| Feb 20, 2024 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -1,044 | $13.67 | $14k | 77,281 | Apr 15, 2025 |
| May 20, 2024 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -1,886 | $12.15 | $23k | 75,395 | Apr 15, 2025 |
| Aug 20, 2024 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -1,886 | $8.19 | $15k | 73,509 | Apr 15, 2025 |
| Nov 20, 2024 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -1,889 | $5.21 | $9,842 | 71,620 | Apr 15, 2025 |
| Feb 20, 2025 | Anthony Rabb Chief Financial Officer | FTax withholding Common Stock | -1,987 | $4.81 | $9,557 | 69,633 | Apr 15, 2025 |
| Apr 13, 2025 | Anthony Rabb Chief Financial Officer | AGrant or award Common Stock | +42,500 | $0.00 | $0 | 112,133 | Apr 15, 2025 |
| Feb 10, 2025 | Kelly F. Goodman Interim CEO | AGrant or award Common Stock | +10,000 | $0.00 | $0 | 56,184 | Apr 4, 2025 |
| Feb 20, 2025 | Kelly F. Goodman Interim CEO | FTax withholding Common Stock | -1,489 | $4.81 | $7,162 | 54,695 | Apr 4, 2025 |
| Nov 18, 2024 | Eric P. Dresselhuys Chief Executive Officer | POpen-market purchase Common Stock | +1,000 | $5.23 | $5,227 | 180,580 | Nov 18, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Drew P BuckleyCEO
- Eric P. DresselhuysChief Executive Officer
- Raffi Garabediandirector
- Kelly F. GoodmanSEE REMARKS
- Rich Hossfelddirector
- Michael R Nigglidirector
- Sandeep Nijhawandirector
- Harry Quarlsdirector
- Anthony RabbChief Financial Officer
- Kate Eileen SuhadolnikChief Financial Officer
- Kyle Teameydirector
- Jigish Dhirajlal TrivediCOO
- Alexi Wellmandirector
Questions about GWH
Answered from the filings on this page, as of the latest one.
Are insiders buying GWH?
No. In the last 90 days no insider at ESS Tech, Inc. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade GWH on the open market?
Drew P Buckley (CEO) bought $26k of GWH on Jun 4, 2026 and filed the Form 4 on Jun 8, 2026. InsiderTell scored 38 (weak).
How many insiders file Form 4 at ESS Tech, Inc.?
13 people have filed a Form 4 at ESS Tech, Inc., among them Drew P Buckley (CEO), Eric P. Dresselhuys (Chief Executive Officer), Raffi Garabedian (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.