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CIK 0001819438 · Non-accelerated filer<br>Smaller reporting company

ESS Tech, Inc.

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Ticker
GWHT
Exchange
OTC
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
981550150
Phone
(855) 423-9920
Business address
26440 SW PARKWAY AVE., BLDG. 83, WILSONVILLE, OR, 97070
Former names
ACON S2 Acquisition Corp.
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$3,751
in 2 filings

Net −$3,751. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Goodman Kelly F. −$2K SEE REMARKS sold 3% of stake
  2. Suhadolnik Kate Eileen −$2K Chief Financial Officer sold 2% of stake

Reading 26 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-08-21 Goodman Kelly F. SEE REMARKS Sale −5,400 $0.40 $2K 205,220
2026-05-22 Goodman Kelly F. SEE REMARKS Sale −2,751 $0.93 $3K 210,620
2026-05-21 Goodman Kelly F. SEE REMARKS Sale −2,482 $0.92 $2K 213,371
2026-02-20 Goodman Kelly F. SEE REMARKS Sale −2,269 $1.54 $3K 215,853
2026-02-13 Goodman Kelly F. SEE REMARKS Grant or award +137,500 218,122
2026-02-13 Goodman Kelly F. SEE REMARKS Grant or award · Stock Option (right to buy) +137,500 137,500
2025-11-20 Goodman Kelly F. Interim CEO Shares withheld for taxes −4,513 $2.40 $11K 80,622
2025-08-20 Goodman Kelly F. Interim CEO Shares withheld for taxes −4,326 $1.61 $7K 85,135
2025-05-20 Goodman Kelly F. Interim CEO Shares withheld for taxes −2,164 $1.96 $4K 89,461
2025-04-13 Goodman Kelly F. Interim CEO Grant or award +36,930 91,625
2025-02-20 Goodman Kelly F. Interim CEO Shares withheld for taxes −1,489 $4.81 $7K 54,695
2025-02-10 Goodman Kelly F. Interim CEO Grant or award +10,000 56,184

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