Rich Hossfeld - 13 Oct 2025 Form 4 Insider Report for ESS Tech, Inc. (GWH)

Role
Director
Signature
/s/ Kate Suhadolnik, by power of attorney
Issuer symbol
GWH
Transactions as of
13 Oct 2025
Net transactions value
$0
Form type
4
Filing time
15 Oct 2025, 16:46:19 UTC
Previous filing
17 May 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hossfeld Rich Director C/O ESS TECH, INC., 26440 SW PARKWAY AVE., BLDG. 83, WILSONVILLE /s/ Kate Suhadolnik, by power of attorney 15 Oct 2025 0001885330

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GWH Common Stock Award $0 +13,513 +94% $0.000000 27,859 13 Oct 2025 Direct F1, F2
* 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 ("RSUs") which vest on the earlier of (i) May 17, 2025 or (ii) the day prior to the next annual meeting of stockholders. The Reporting Person has elected to defer the settlement of these RSUs to a date within 30 days of the earlier of (i) his or her separation of service from the Issuer within the meaning of Section 409A of the Internal Revenue Code (Section 409A) or (ii) the date on which a change of control (as defined in the Issuer's plan) occurs, provided that such transaction qualifies as a change of control within the meaning of Section 409A.
F2 A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.