Insiders · GWH

GWH insider transactions

ESS Tech Inc. (GWH) Form 4 insider transactions - real-time wire coverage of every officer, director, and 10% owner trade.

GWH insiders

Everyone who has filed a Form 3, 4, 5 or 144 at ESS Tech Inc., latest first. Follow anyone to get their next filing.

• Kate Eileen SuhadolnikChief Financial Officer, since August 2025-$6,110
• Kelly F. GoodmanInterim CEO, since February 2025-$10.5K
• Drew P BuckleyCEO, Director, since January 2026+$25.7K
• Alexi WellmanDirector, since October 2021
• Harry QuarlsDirector, since August 2023+$230K
• Sandeep NijhawanDirector, since May 2023-$40K
• Rich HossfeldDirector, since October 2021+$9,869
• Raffi GarabedianDirector, since October 2021
• Michael R NiggliDirector, since October 2021+$188K
• Kyle TeameyDirector, since October 2021+$10.4K
• Anthony RabbChief Financial Officer, since November 2022
• Jigish Dhirajlal TrivediCOO, since August 2025
• Eric P. DresselhuysChief Executive Officer, Director, since October 2021+$5,227-$873K
• Honeywell International Inc10% owner, since September 2023
• Craig E EvansOfficer, Director, since October 2021-$555K
• Amir MoftakharOfficer, since October 2021-$346K
• Claudia GastDirector, since February 2022
• Daryl C WilsonDirector, since October 2021
• Jeff BodnerOfficer, since October 2021
• Softbank Group Corp.Director, 10% owner, since October 2021
• Breakthrough Energy Ventures, LLC10% owner, since October 2021
• Shirley SpeakmanDirector, since October 2021
• John A RoushOfficer, Director
• Daniel JinichDirector
• Janie GoddardDirector
• Jonathan J GinnsDirector
• Ryan D Shadrick-WilsonDirector
• Sarah Kirshbaum LevyDirector
• ACON S2 Sponsor, L.L.C.10% owner
• Adam M. KrigerOfficer, Director

Recent Form 3, 4, and 5 filings for GWH

• 76d
  Chief Financial Officer Suhadolnik Kate Eileen sold $1,579 worth of shares (3,927 units at $0.40), decreasing direct ownership by 2% to 156,830 units (SEC Form 4) to satisfy withholding obligation

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 76d
  Officer Goodman Kelly F. sold $2,172 worth of shares (5,400 units at $0.40), decreasing direct ownership by 3% to 205,220 units (SEC Form 4) (tax liability)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 153d
  CEO Buckley Drew P bought $25,660 worth of shares (25,000 units at $1.03) (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 159d
  Director Wellman Alexi was granted 13,513 shares, increasing direct ownership by 35% to 52,399 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 159d
  Director Quarls Harry was granted 13,513 shares, increasing direct ownership by 24% to 68,769 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 159d
  Director Nijhawan Sandeep was granted 13,513 shares, increasing direct ownership by 47% to 42,563 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 159d
  Director Hossfeld Rich was granted 13,513 shares, increasing direct ownership by 49% to 41,372 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 159d
  Director Garabedian Raffi was granted 13,513 shares, increasing direct ownership by 34% to 53,185 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 165d
  Chief Financial Officer Suhadolnik Kate Eileen sold $3,389 worth of shares (3,657 units at $0.93), decreasing direct ownership by 2% to 160,757 units (SEC Form 4) (tax liability)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 165d
  Officer Goodman Kelly F. sold $4,850 worth of shares (5,233 units at $0.93), decreasing direct ownership by 2% to 210,620 units (SEC Form 4) (withholding tax)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 254d
  Officer Goodman Kelly F. sold $3,494 worth of shares (2,269 units at $1.54), decreasing direct ownership by 1% to 215,853 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 254d
  Chief Financial Officer Suhadolnik Kate Eileen sold $1,141 worth of shares (741 units at $1.54), decreasing direct ownership by 0.45% to 164,414 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 283d
  SEC Form 4 filed by CEO Buckley Drew P

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 283d
  SEC Form 3 filed by new insider Buckley Drew P

  3 - ESS Tech, Inc. (0001819438) (Issuer)
• 351d
  Interim CFO Suhadolnik Kate Eileen covered exercise/tax liability with 1,299 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 351d
  Interim CEO Goodman Kelly F. covered exercise/tax liability with 4,513 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Niggli Michael R was granted 13,513 shares, increasing direct ownership by 17% to 90,825 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Wellman Alexi was granted 13,513 shares, increasing direct ownership by 53% to 38,886 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Quarls Harry was granted 13,513 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Nijhawan Sandeep was granted 13,513 shares, increasing direct ownership by 87% to 29,050 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Garabedian Raffi was granted 13,513 shares, increasing direct ownership by 52% to 39,672 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Hossfeld Rich was granted 13,513 shares, increasing direct ownership by 94% to 27,859 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 389d
  Director Teamey Kyle was granted 13,513 shares, increasing direct ownership by 54% to 38,740 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 429d
  COO Trivedi Jigish Dhirajlal was granted 275,000 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 436d
  Interim CFO Suhadolnik Kate Eileen covered exercise/tax liability with 1,232 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 437d
  New insider Suhadolnik Kate Eileen claimed ownership of 30,186 shares (SEC Form 3)

  3 - ESS Tech, Inc. (0001819438) (Issuer)
• 437d
  SEC Form 3 filed by new insider Trivedi Jigish Dhirajlal

  3 - ESS Tech, Inc. (0001819438) (Issuer)
• 444d
  Interim CEO Goodman Kelly F. covered exercise/tax liability with 4,326 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 535d
  Interim CEO Goodman Kelly F. covered exercise/tax liability with 2,164 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 535d
  Chief Financial Officer Rabb Anthony covered exercise/tax liability with 2,741 shares (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 572d
  Chief Financial Officer Rabb Anthony covered exercise/tax liability with 13,196 shares and was granted 42,500 shares, increasing direct ownership by 35% to 112,133 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 572d
  Interim CEO Goodman Kelly F. was granted 36,930 shares, increasing direct ownership by 68% to 91,625 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 583d
  Interim CEO Goodman Kelly F. was granted 10,000 shares and covered exercise/tax liability with 1,489 shares, increasing direct ownership by 18% to 54,695 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 632d
  New insider Goodman Kelly F. claimed ownership of 46,184 shares (SEC Form 3)

  3 - ESS Tech, Inc. (0001819438) (Issuer)
• 719d
  Chief Executive Officer Dresselhuys Eric P. bought $5,227 worth of shares (1,000 units at $5.23), increasing direct ownership by 0.56% to 180,580 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 781d
  Director Nijhawan Sandeep sold $40,040 worth of shares (7,000 units at $5.72), decreasing direct ownership by 31% to 15,537 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 796d
  Director Niggli Michael R exercised 11,852 shares at a strike of $6.88, increasing direct ownership by 18% to 77,312 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 796d
  Director Teamey Kyle bought $956 worth of shares (142 units at $6.73), increasing direct ownership by 0.57% to 25,227 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Hossfeld Rich was granted 202,702 shares and returned 135,373 shares to the company, increasing direct ownership by 46% to 215,202 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Garabedian Raffi was granted 202,702 shares, increasing direct ownership by 107% to 392,429 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Niggli Michael R was granted 202,702 shares, increasing direct ownership by 27% to 951,896 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Nijhawan Sandeep was granted 202,702 shares, increasing direct ownership by 150% to 338,075 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Quarls Harry was granted 202,702 shares, increasing direct ownership by 48% to 626,158 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Teamey Kyle was granted 202,702 shares, increasing direct ownership by 117% to 376,311 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 905d
  Wellman Alexi was granted 202,702 shares, increasing direct ownership by 114% to 380,633 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 907d
  Teamey Kyle bought $987 worth of shares (1,250 units at $0.79), increasing direct ownership by 0.73% to 173,609 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 909d
  Quarls Harry bought $44,988 worth of shares (57,310 units at $0.78), increasing direct ownership by 16% to 423,456 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 912d
  Quarls Harry bought $35,817 worth of shares (42,690 units at $0.84), increasing direct ownership by 13% to 366,146 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 913d
  Dresselhuys Eric P. was granted 622,771 shares, increasing direct ownership by 30% to 2,718,239 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 965d
  Hossfeld Rich bought $1,814 worth of shares (2,500 units at $0.73), increasing direct ownership by 2% to 147,873 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 996d
  Rabb Anthony was granted 550,000 shares, increasing direct ownership by 79% to 1,242,468 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 996d
  Rabb Anthony was granted 76,452 shares, increasing direct ownership by 12% to 692,468 units (SEC Form 4) (Amendment)

  4/A - ESS Tech, Inc. (0001819438) (Issuer)
• 1088d
  Quarls Harry bought $6,866 worth of shares (5,489 units at $1.25), increasing direct ownership by 2% to 323,456 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1088d
  Quarls Harry bought $90,307 worth of shares (67,118 units at $1.35), increasing direct ownership by 27% to 317,967 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1090d
  Quarls Harry bought $51,631 worth of shares (46,814 units at $1.10), increasing direct ownership by 38% to 170,270 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1091d
  Teamey Kyle bought $1,106 worth of shares (1,000 units at $1.11), increasing direct ownership by 0.58% to 172,359 units (SEC Form 4)

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1140d
  SEC Form 3: New insider Honeywell International Inc claimed ownership of 16,491,754 shares

  3 - ESS Tech, Inc. (0001819438) (Issuer)
• 1159d
  SEC Form 4: Dresselhuys Eric P. was granted 128,617 shares, increasing direct ownership by 7% to 2,095,468 units

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1165d
  SEC Form 4: Quarls Harry was granted 123,456 shares

  4 - ESS Tech, Inc. (0001819438) (Issuer)
• 1165d
  SEC Form 3 filed by new insider Quarls Harry

  3 - ESS Tech, Inc. (0001819438) (Issuer)