ESS Tech, Inc. (GWH)
Latest GWH Insider Trades
About ESS Tech, Inc. (GWH)
ESS Tech Inc is a long-duration energy storage company specializing in iron flow battery technology. It develops and manufactures long-duration energy storage systems based on iron flow battery technology. The company's batteries use earth-abundant materials, including iron, salt, and water, and are designed for high cycle life and recyclability. It operates as a single business operating segment, which includes all activities related to the design, engineering, and manufacturing of the company's long duration energy storage products. The company's revenue is derived from the sale of its energy storage products and from service contracts.
- WILSONVILLE, OR
- 62
- 2021
- XNYS
90-Day SEC Filing Activity
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 25,000 | $26K |
| Open-market sale | 2 | 9,327 | $4K |
| Grant or award | 5 | 67,565 |
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 |
Recent GWH Form 8-K Filings
5GWH Insider Trading - FAQ
What is the latest insider trade for GWH?
ESS Tech, Inc. (GWH) had 8 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 tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying GWH stock?
1 insider purchase of GWH was filed in the last 90 days, totaling $26K.
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 tracks GWH Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow GWH insider buys?
Create a free InsiderAlpha account and press Watch on this page to add GWH to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity
Recent Insider Filings
10Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they 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 - Recent Insider Activity
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity in Information Technology
- Where GWH's peers are being bought and sold.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track GWH insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
