Eric P. Dresselhuys - Sep 5, 2023 Form 4 Insider Report for ESS Tech, Inc. (GWH)

Role: Chief Executive Officer, Director
Signature: /s/ Kelly F. Goodman, by power of attorney
Stock symbol: GWH
Transactions as of: Sep 5, 2023
Transactions value $: $0
Form type: 4
Date filed: 9/6/2023, 05:11 PM
Previous filing: Apr 26, 2023
Next filing: May 8, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GWH	Common Stock	Award	$0	+129K	+6.54%	$0.00	2.1M	Sep 5, 2023	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GWH	Employee Stock Option (right to buy)	Award	$0	+193K		$0.00	193K	Sep 5, 2023	Common Stock	193K	$1.60	Direct	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reported shares are represented by restricted stock units, or RSUs, which vest as to 1/3 of the RSUs on November 20, 2024 and 1/3 of the RSUs vest annually thereafter subject to the Reporting Person remaining as a Service Provider to the issuer as of each vest date.
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.
F3	1/3 of the shares subject to the option shall vest on the one year anniversary of the date of grant and 1/3 of the shares subject to the option shall vest annually thereafter, provided that the Reporting Person remains as a Service Provider to the issuer as of each vest date.