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About ESS Tech, Inc. (GWH)
ESS Tech, Inc. files with the SEC under CIK 0001819438 and is classified as miscellaneous electrical machinery, equipment and supplies. We track it alongside the rest of the Information Technology sector.
GWH Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 2 | 9,327 | $4K |
GWH insider transactions (Form 4)
2826 Form 4 filings on record, the earliest from Nov 18, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Kate Eileen Suhadolnik - Officer | Open-market sale | Common Stock | 3,927 footnote F1 | $0.40 | $2K | |
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| Kelly F. Goodman - Officer | Open-market sale | Common Stock | 5,400 footnote F1 | $0.40 | $2K | |
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| Drew P. Buckley - Officer | Open-market purchase | Common Stock | 25,000 | $1.03 footnote F1 | $26K | |
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 Alexi Wellman | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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 Harry Quarls | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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 Sandeep Nijhawan | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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 Rich Hossfeld | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Raffi Garabedian | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Kate Eileen Suhadolnik - Officer | Open-market sale | Common Stock | 1,735 footnote F1 | $0.92 footnote F2 | $2K | |
| Kate Eileen Suhadolnik - Officer | Open-market sale | Common Stock | 1,922 footnote F1 | $0.93 footnote F4 | $2K | |
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| Kelly F. Goodman - Officer | Open-market sale | Common Stock | 2,482 footnote F1 | $0.92 footnote F2 | $2K | |
| Kelly F. Goodman - Officer | Open-market sale | Common Stock | 2,751 footnote F1 | $0.93 footnote F4 | $3K | |
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| Kate Eileen Suhadolnik - Officer | Open-market sale | Common Stock | 741 footnote F1 | $1.54 | $1K | |
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| Kelly F. Goodman - Officer | Open-market sale | Common Stock | 2,269 footnote F1 | $1.54 | $3K | |
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| Drew P. Buckley - Officer | Grant or award | Stock Option (right to buy) | 550,000 | $0.00 | - | |
| Kate Eileen Suhadolnik - Officer | Tax withholding / forfeiture | Common Stock | 1,299 footnote F1 | $2.40 | $3K | |
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| Kelly F. Goodman - Officer | Tax withholding / forfeiture | Common Stock | 4,513 footnote F1 | $2.40 | $11K | |
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| Rich Hossfeld - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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 Kyle Teamey - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Alexi Wellman - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Harry Quarls - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Raffi Garabedian - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Sandeep Nijhawan - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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 Michael R. Niggli - Director | Grant or award | Common Stock | 13,513 footnote F1 | $0.00 | - | |
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| Kate Eileen Suhadolnik - Officer | Tax withholding / forfeiture | Common Stock | 1,232 | $1.61 | $2K | |
| Kelly F. Goodman - Officer | Tax withholding / forfeiture | Common Stock | 4,326 | $1.61 | $7K | |
| Jigish Dhirajlal Trivedi - Officer | Grant or award | Common Stock | 275,000 | $0.00 | - | |
| Eric P. Dresselhuys - Officer | Open-market purchase | Common Stock | 1,000 | $5.23 | $5K | |
Item 2.01, 2.02, 3.01, 7.01, 9.01
Item 2.01, 2.02, 3.01
Item 5.02
Item 1.01, 3.02, 8.01, 9.01
GWH insider trading FAQ
What is the latest insider trade for GWH?
ESS Tech, Inc. (GWH) had 2 insider filings in the last 90 days, with the most recent on 2026-08-24. The full record for GWH runs to 26 Form 4 filings, the earliest from 2024-11-18. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying GWH stock?
No insider purchases of GWH were filed in the last 90 days. 2 purchases are on record for this company.
How many insiders are selling GWH stock?
2 insider sales of GWH were filed in the last 90 days, totaling $4K.
Where can I see GWH SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects GWH Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Kate Eileen Suhadolnik view on EDGAR
- - Kelly F. Goodman view on EDGAR
- - Drew P. Buckley view on EDGAR
- - Alexi Wellman view on EDGAR
- - Harry Quarls view on EDGAR
- - Sandeep Nijhawan view on EDGAR
- - Rich Hossfeld view on EDGAR
- - Raffi Garabedian view on EDGAR
- - Kate Eileen Suhadolnik view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Insider activity in Information Technology
- Where GWH's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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