| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Goodman Kelly F. | Interim CEO | C/O ESS TECH, INC., 26440 SW PARKWAY AVE., BLDG. 83, WILSONVILLE | /s/ Kelly F. Goodman | 21 Aug 2025 | 0002056453 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GWH | Common Stock | Tax liability | $6,965 | -4,326 | -4.8% | $1.61 | 85,135 | 20 Aug 2025 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | The reported shares were withheld by the Issuer upon vesting of RSUs to satisfy tax withholding obligations. |
| F2 | A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. |