Over the last 12 months, ESS Tech insiders reported 1 buy totaling $26K and 2 sales totaling $4K across SEC Form 4 filings.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 4, 2026 | Buckley Drew PCEO · O·D | ▲ Buy | 25,000 | $1.03 | $26K | — | — |
| May 21, 2026 | Suhadolnik Kate EileenChief Financial Officer · O | ▼ Sale | 1,735 | $0.92 | $2K | -1.1% | — |
| May 21, 2026 | Goodman Kelly F.SEE REMARKS · O | ▼ Sale | 2,482 | $0.92 | $2K | -1.1% | — |
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $GWH feed.