GWH
insider transactionsESS Tech, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 90d
+16.1K
25.0K buy · 8.9K sell
Net value · 90d
$17.4K
$25.7K in · $8.2K out
Sentiment · 90d
Net buying
76% buying · 24% selling
Open-market trades · 90d
5
25.0K buy · 8.9K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Buy·P
Drew P Buckley KEY
CEO
$25.7K
25.0K sh · $1.03
Own New
-
Grant·A
Director
$0
13.5K sh
Own +49%
-
Grant·A
Director
$0
13.5K sh
Own +35%
-
Grant·A
Director
$0
13.5K sh
Own +24%
-
Grant·A
Director
$0
13.5K sh
Own +34%
-
Grant·A
Director
$0
13.5K sh
Own +47%
-
Sell·S
Chief Financial Officer
$1.8K
1.9K sh · $0.93
Own -1%
-
Sell·S
Officer title: Chief Strategy…
$2.6K
2.8K sh · $0.93
Own -1%
-
Sell·S
Chief Financial Officer
$1.6K
1.7K sh · $0.92
Own -1%
-
Sell·S
Officer title: Chief Strategy…
$2.3K
2.5K sh · $0.92
Own -1%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 4, 2026 | Drew P Buckley KEY | Buy P | 25.0K | $25.7K |
| May 29, 2026 | Rich Hossfeld | Grant A | 13.5K | $0 |
| May 29, 2026 | Alexi Wellman | Grant A | 13.5K | $0 |
| May 29, 2026 | Harry Quarls | Grant A | 13.5K | $0 |
| May 29, 2026 | Raffi Garabedian | Grant A | 13.5K | $0 |
| May 29, 2026 | Sandeep Nijhawan | Grant A | 13.5K | $0 |
| May 22, 2026 | Kate Eileen Suhadolnik KEY | Sell S | 1.9K | $1.8K |
| May 22, 2026 | Kelly F. Goodman | Sell S | 2.8K | $2.6K |
| May 21, 2026 | Kate Eileen Suhadolnik KEY | Sell S | 1.7K | $1.6K |
| May 21, 2026 | Kelly F. Goodman | Sell S | 2.5K | $2.3K |
About GWH insider trading
This page tracks insider transactions for ESS Tech, Inc. (GWH) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.