ESS Tech, Inc. (GWH-WT) Insider Ownership

Historic Insider Ownership Trends

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Group Corp Softbank - 0 35,953,699 12 Nov, 2021
Michael R Niggli - 0 568,302 17 Nov, 2021
Sandeep Nijhawan - 29,050 0 15 Oct, 2025
Raffi Garabedian - 39,672 0 15 Oct, 2025
Eric P. Dresselhuys Chief Executive Officer 180,580 0 18 Nov, 2024
Harry Quarls - 13,513 0 15 Oct, 2025
Energy Ventures, Llc Breakthrough - 18,558,721 0 12 Nov, 2021
Alexi Wellman - 38,886 0 15 Oct, 2025
Sarah Kirshbaum Levy - 50,000 0 13 Oct, 2021
S2 Sponsor, L.L.C. Acon - 6,100,000 0 13 Oct, 2021
Ryan D Shadrick-Wilson - 50,000 0 12 Oct, 2021
Janie Goddard - 50,000 0 13 Oct, 2021
Claudia Gast - 59,694 0 02 Jun, 2022
Amir Moftakhar Chief Financial Officer 558,850 0 20 Oct, 2022
Jeff Bodner Chief Accounting Officer 54,900 0 09 Feb, 2022
Daryl C Wilson - 75,850 0 02 Jun, 2022
Kyle Teamey - 38,740 0 15 Oct, 2025
Rich Hossfeld - 27,859 0 15 Oct, 2025
Craig E Evans President 5,561,524 0 23 Feb, 2023
Anthony Rabb Chief Financial Officer 109,392 0 22 May, 2025
Kelly F. Goodman Interim Ceo 215,853 0 26 Feb, 2026
Jigish Dhirajlal Trivedi Coo 275,000 0 05 Sep, 2025
Kate Eileen Suhadolnik Chief Financial Officer 164,414 0 26 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
20 Feb, 2026 Kelly F. Goodman Common Stock D 2,269 $1.54 215,853 D S
20 Feb, 2026 Kelly F. Goodman Common Stock D 2,269 $1.54 215,853 D S
13 Feb, 2026 Kate Eileen Suhadolnik Common Stock A 137,500 $0.00 165,155 D A
13 Feb, 2026 Kate Eileen Suhadolnik Common Stock A 137,500 $0.00 165,155 D A
20 Feb, 2026 Kate Eileen Suhadolnik Common Stock D 741 $1.54 164,414 D S
13 Feb, 2026 Kelly F. Goodman Common Stock A 137,500 $0.00 218,122 D A
20 Feb, 2026 Kate Eileen Suhadolnik Common Stock D 741 $1.54 164,414 D S
13 Feb, 2026 Kelly F. Goodman Common Stock A 137,500 $0.00 218,122 D A
13 Feb, 2026 Kelly F. Goodman Stock Option (right to buy) A 137,500 $0.00 137,500 D A
13 Feb, 2026 Kate Eileen Suhadolnik Stock Option (right to buy) A 137,500 $0.00 137,500 D A
13 Feb, 2026 Kate Eileen Suhadolnik Stock Option (right to buy) A 137,500 $0.00 137,500 D A
13 Feb, 2026 Kelly F. Goodman Stock Option (right to buy) A 137,500 $0.00 137,500 D A
28 Jan, 2026 Drew P Buckley Stock Option (right to buy) A 550,000 $0.00 550,000 D A
20 Nov, 2025 Kelly F. Goodman Common Stock D 4,513 $2.40 80,622 D F
20 Nov, 2025 Kelly F. Goodman Common Stock D 4,513 $2.40 80,622 D F
20 Nov, 2025 Kate Eileen Suhadolnik Common Stock D 1,299 $2.40 27,655 D F
20 Nov, 2025 Kate Eileen Suhadolnik Common Stock D 1,299 $2.40 27,655 D F
13 Oct, 2025 Raffi Garabedian Common Stock A 13,513 $0.00 39,672 D A
13 Oct, 2025 Rich Hossfeld Common Stock A 13,513 $0.00 27,859 D A
13 Oct, 2025 Sandeep Nijhawan Common Stock A 13,513 $0.00 29,050 D A