Insider Transactions Reported by 30 Insiders of ESS Tech, Inc.

Symbol
GWH, GWH-WT on NYSE
Location
Wilsonville, OR

Insiders trading volume in the past year

ESS Tech, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
SOFTBANK GROUP CORP. Director, 10%+ Owner $44,970,887 09 Nov 2021
HONEYWELL INTERNATIONAL INC 10%+ Owner $20,627,886 21 Sep 2023
Craig E. Evans President, Director $10,533,477 13 Mar 2023
ACON S2 Sponsor, L.L.C. 10%+ Owner $7,629,880 08 Oct 2021
Eric P. Dresselhuys Chief Executive Officer, Director $943,910 18 Nov 2024
Amir Moftakhar Chief Financial Officer $699,010 19 Oct 2022
Jigish Dhirajlal Trivedi Coo $464,750 18 Aug 2025
Kelly F. Goodman Officer title: Chief Strategy Officer and General Counsel $332,413 -$3,494 -1% 20 Feb 2026
Kate Eileen Suhadolnik Chief Financial Officer $253,197 -$1,141 -0.45% 20 Feb 2026
Anthony Rabb Chief Financial Officer $214,408 20 May 2025
Michael R. Niggli Director $116,256 13 Oct 2025
Daryl C. Wilson Director $94,873 01 Jun 2022
Claudia Gast Director $74,665 01 Jun 2022
Jeff Bodner Chief Accounting Officer $68,669 08 Feb 2022
Janie Goddard Director $62,540 08 Oct 2021
Sarah Kirshbaum Levy Director $62,540 08 Oct 2021
D. Shadrick Wilson Director $62,540 08 Oct 2021
Raffi Garabedian Director $50,780 13 Oct 2025
Alexi Wellman Director $49,774 13 Oct 2025
Kyle Teamey Director $49,587 13 Oct 2025
Sandeep Nijhawan Director $37,184 13 Oct 2025
Rich Hossfeld Director $35,659 13 Oct 2025
Harry Quarls Director $17,296 13 Oct 2025
John A. Roush Chief Financial Officer, Director 08 Oct 2021
Jonathan J. Ginns Director 08 Oct 2021
Adam M. Kriger Chief Executive Officer, Director 08 Oct 2021
Daniel Jinich Director 08 Oct 2021
Shirley Speakman Director 08 Oct 2021
Breakthrough Energy Ventures, LLC 10%+ Owner 09 Nov 2021
Drew P. Buckley CEO, Director 28 Jan 2026

Recent Insider Transactions by Companies or Individuals for ESS Tech, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Kate Eileen Suhadolnik GWH Common Stock Sale -0.45% $1,141 $1.54 -741 164,414 20 Feb 2026 Direct
Kelly F. Goodman GWH Common Stock Sale -1.04% $3,494 $1.54 -2,269 215,853 20 Feb 2026 Direct
Kate Eileen Suhadolnik GWH Common Stock Award 497.2% 137,500 165,155 13 Feb 2026 Direct
Kate Eileen Suhadolnik GWH Stock Option (right to buy) Award 137,500 137,500 13 Feb 2026 Direct
Kelly F. Goodman GWH Common Stock Award 170.6% 137,500 218,122 13 Feb 2026 Direct
Kelly F. Goodman GWH Stock Option (right to buy) Award 137,500 137,500 13 Feb 2026 Direct
Drew P. Buckley GWH Stock Option (right to buy) Award 550,000 550,000 28 Jan 2026 Direct
Kate Eileen Suhadolnik GWH Common Stock Tax liability -4.49% -1,299 27,655 20 Nov 2025 Direct
Kelly F. Goodman GWH Common Stock Tax liability -5.3% -4,513 80,622 20 Nov 2025 Direct
Michael R. Niggli GWH Common Stock Award 17.5% 13,513 90,825 13 Oct 2025 Direct
Alexi Wellman GWH Common Stock Award 53.3% 13,513 38,886 13 Oct 2025 Direct
Harry Quarls GWH Common Stock Award 13,513 13,513 13 Oct 2025 Direct
Sandeep Nijhawan GWH Common Stock Award 87% 13,513 29,050 13 Oct 2025 Direct
Raffi Garabedian GWH Common Stock Award 51.7% 13,513 39,672 13 Oct 2025 Direct
Rich Hossfeld GWH Common Stock Award 94.2% 13,513 27,859 13 Oct 2025 Direct
Kyle Teamey GWH Common Stock Award 53.6% 13,513 38,740 13 Oct 2025 Direct
Kate Eileen Suhadolnik GWH Common Stock Tax liability -4.08% -1,232 28,954 20 Aug 2025 Direct
Kelly F. Goodman GWH Common Stock Tax liability -4.84% -4,326 85,135 20 Aug 2025 Direct
Jigish Dhirajlal Trivedi GWH Common Stock Award 275,000 275,000 18 Aug 2025 Direct
Kelly F. Goodman GWH Common Stock Tax liability -2.36% -2,164 89,461 20 May 2025 Direct
Anthony Rabb GWH Common Stock Tax liability -2.44% -2,741 109,392 20 May 2025 Direct
Anthony Rabb GWH Common Stock Award 61% 42,500 112,133 13 Apr 2025 Direct
Kelly F. Goodman GWH Common Stock Award 67.5% 36,930 91,625 13 Apr 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.