ESS Tech, Inc. — Director's Dealing 2024

May 9, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ESS Tech, Inc. (GWH)
CIK: 0001819438
Period of Report: 2024-03-07

Reporting Person: Dresselhuys Eric P. (Director, Chief Executive Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-03-07	Common Stock	A	622771	—	Acquired	2718239	Direct

Footnotes

F1: The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments with the first vest date on May 20, 2024.

F2: A portion of these securities are Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.