All stock lists
ESS Tech, Inc. (New York Stock Exchange:GWH)
US · Delayed Price · Currency is USD
Also listed: GWHTIndustrials · Electrical Equipment & Parts
0.15+0.00 (-1.27%)
Insider Score
––Not scored
GWH Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
GWH Stock Insider Trading Activity
GWH stock’s insider trading shows 1 purchase for an estimated $25.75K and 6 sales on the open market for an estimated $11.98K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Goodman Kelly F. Other | Sell | 5,400 | $0.40 | $2.17K | 2.6% | 205,220 | Aug 21, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Sell | 3,927 | $0.40 | $1.58K | 2.4% | 156,830 | Aug 21, 2026 | — | Form 4 |
| Buckley Drew P CEO | Buy | 25,000 | $1.03 | $25.75K | New | 25,000 | Jun 4, 2026 | AFirst BuyCEO BuyDilution | Form 4 |
| Nijhawan Sandeep Director | Award | 13,513 | — | — | 46.5% | 42,563 | May 29, 2026 | — | Form 4 |
| Garabedian Raffi Director | Award | 13,513 | — | — | 34.1% | 53,185 | May 29, 2026 | — | Form 4 |
| Hossfeld Rich Director | Award | 13,513 | — | — | 48.5% | 41,372 | May 29, 2026 | — | Form 4 |
| WELLMAN ALEXI Director | Award | 13,513 | — | — | 34.8% | 52,399 | May 29, 2026 | — | Form 4 |
| Quarls Harry Director | Award | 13,513 | — | — | 24.5% | 68,769 | May 29, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Sell | 1,922 | $0.93 | $1.79K | 1.2% | 160,757 | May 22, 2026 | — | Form 4 |
| Goodman Kelly F. Other | Sell | 2,751 | $0.93 | $2.56K | 1.3% | 210,620 | May 22, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Sell | 1,735 | $0.92 | $1.60K | 1.1% | 162,679 | May 21, 2026 | — | Form 4 |
| Goodman Kelly F. Other | Sell | 2,482 | $0.92 | $2.28K | 1.1% | 213,371 | May 21, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Sell | 741 | $1.54 | $1.14K | 0.4% | 164,414 | Feb 20, 2026 | — | Form 4 |
| Goodman Kelly F. Other | Sell | 2,269 | $1.54 | $3.49K | 1.0% | 215,853 | Feb 20, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Award | 137,500 | — | — | 497% | 165,155 | Feb 13, 2026 | — | Form 4 |
| Goodman Kelly F. Other | Award | 137,500 | — | — | 171% | 218,122 | Feb 13, 2026 | — | Form 4 |
| Suhadolnik Kate Eileen CFO | Tax withheld | 1,299 | $2.40 | $3.12K | 4.5% | 27,655 | Nov 20, 2025 | — | Form 4 |
| Goodman Kelly F. CEO | Tax withheld | 4,513 | $2.40 | $10.83K | 5.3% | 80,622 | Nov 20, 2025 | — | Form 4 |
| Teamey Kyle Director | Award | 13,513 | — | — | 53.6% | 38,740 | Oct 13, 2025 | — | Form 4 |
| Quarls Harry Director | Award | 13,513 | — | — | New | 13,513 | Oct 13, 2025 | — | Form 4 |
| Hossfeld Rich Director | Award | 13,513 | — | — | 94.2% | 27,859 | Oct 13, 2025 | — | Form 4 |
| WELLMAN ALEXI Director | Award | 13,513 | — | — | 53.3% | 38,886 | Oct 13, 2025 | — | Form 4 |
| Garabedian Raffi Director | Award | 13,513 | — | — | 51.7% | 39,672 | Oct 13, 2025 | — | Form 4 |
| Nijhawan Sandeep Director | Award | 13,513 | — | — | 87.0% | 29,050 | Oct 13, 2025 | — | Form 4 |
| NIGGLI MICHAEL R Director | Award | 13,513 | — | — | 17.5% | 90,825 | Oct 13, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.