Kate Eileen Suhadolnik - 20 Aug 2025 Form 4 Insider Report for ESS Tech, Inc. (GWH)

Reporting relationship
Interim CFO
Issuer ticker
GWH
Reported as of
20 Aug 2025
Net transaction value
-$1,984
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
4
Accepted by SEC
29 Aug 2025, 16:04:39 UTC
Prior SEC filing
28 Aug 2025
Next SEC filing
21 Nov 2025
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Bianca Boschmans, by power of attorney

Key filing fact

Kate Eileen Suhadolnik filed Form 4 for ESS Tech, Inc. (GWH) on 29 Aug 2025.

Key facts

  • This page summarizes Kate Eileen Suhadolnik's Form 4 filing for ESS Tech, Inc. (GWH).
  • 1 reported transaction and 0 derivative rows are listed below.
  • Accepted by SEC: 29 Aug 2025, 16:04.

Change

  • Previous filing in this sequence was filed on 28 Aug 2025.
  • Current net transaction value: -$1,984.

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 0002083724 Primary reporting owner

Suhadolnik Kate Eileen

Relationship
Interim CFO
Address
C/O ESS TECH, INC., 26440 SW PARKWAY AVE., BLDG. 83, WILSONVILLE
Signature
/s/ Bianca Boschmans, by power of attorney
Signature date
29 Aug 2025

Reported non-derivative transactions

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

GWH transaction

Common Stock

Tax liability

Transaction value
$1,984
Shares
-1,232
Change %
-4.1%
Price
$1.61
Shares after
28,954
Date
20 Aug 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 were withheld by the Issuer upon vesting of RSUs to satisfy tax withholding obligations.

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.

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