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

Reporting relationship: Director
Issuer ticker: GWH
Reported as of: 13 Oct 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 15 Oct 2025, 16:46:01 UTC
Prior SEC filing: 03 Sep 2024
Source filing: View source filing
Reporting owner signature: /s/ Kate Suhadolnik, by power of attorney

Key filing fact

Kyle Teamey filed Form 4 for ESS Tech, Inc. (GWH) on 15 Oct 2025.

Key facts

This page summarizes Kyle Teamey's Form 4 filing for ESS Tech, Inc. (GWH).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 15 Oct 2025, 16:46.

Change

Previous filing in this sequence was filed on 03 Sep 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001884670 Primary reporting owner

Teamey Kyle

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

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GWH transaction

Common Stock

Award

Transaction value: $0
Shares: +13,513
Change %: +54%
Price: $0.000000
Shares after: 38,740
Date: 13 Oct 2025
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote 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.

Footnote F2

A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.