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GWH

ESS Tech, Inc.CIK 1819438 ☆ Sign in to watchCongress trades
Open-mkt buys · 90d
—
0 trades · 0 insiders
Open-mkt sales · 90d
$7.5K
4 trades · 2 insiders
Net · 90d
$-7.5K
Insiders on file
25

AI insights for GWH PRO

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AI insights for GWH
Insider sentiment score with a plain-English explanation, conviction score on every buy, and how the stock performed 30 and 90 days after past insider buys.
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Daily buy vs sell · 90 days

$7.5K2026-08-21 buys — 2026-08-21 sales $7.5K08-21
■ Open-market buys (P)   ■ Open-market sales (S) · daily dollar value by transaction date

Insiders

InsiderRoleTradesBoughtSoldLast trade
Suhadolnik Kate EileenInterim CFO9$0$7.7K2026-08-21
Goodman Kelly F.SEE REMARKS13$0$12.7K2026-08-21
Buckley Drew PCEO2$25.8K$02026-06-04
Hossfeld RichDirector8$9.9K$02026-05-29
WELLMAN ALEXIDirector6$0$02026-05-29
Quarls HarryDirector11$332.4K$02026-05-29
Garabedian RaffiDirector6$0$02026-05-29
Nijhawan SandeepDirector5$0$40.0K2026-05-29
Teamey KyleDirector10$10.4K$02025-10-13
NIGGLI MICHAEL RDirector19$188.0K$02025-10-13
Trivedi Jigish DhirajlalCOO1$0$02025-08-18
Rabb AnthonyChief Financial Officer13$0$02025-05-20
Dresselhuys Eric P.Chief Executive Officer17$5.2K$872.9K2024-11-18
Evans Craig EPresident11$0$447.6K2023-03-13
Moftakhar AmirChief Financial Officer8$0$346.1K2022-10-19
Song JuliaChief Technology Officer9$0$107.8K2022-10-17
Wilson Daryl CDirector2$0$02022-06-01
Gast ClaudiaDirector2$0$02022-06-01
Bodner JeffChief Accounting Officer4$0$02022-02-08
Breakthrough Energy Ventures, LLC10% Owner2$0$02021-11-09
SOFTBANK GROUP CORPDirector, 10% Owner2$0$02021-11-09
Goddard JanieDirector2$0$02021-10-08
Shadrick-Wilson Ryan DDirector2$0$02021-10-08
ACON S2 Sponsor, L.L.C.10% Owner3$0$02021-10-08
Levy Sarah KirshbaumDirector2$0$02021-10-08

Trade history

InsiderRoleCodeTradeFiledSharesPriceValueOwned after
Goodman Kelly F.SEE REMARKS S Sale2026-08-212026-08-245,400$0.40 $2.2K205,220SEC↗
Suhadolnik Kate EileenChief Financial Officer S Sale2026-08-212026-08-243,927$0.40 $1.6K156,830SEC↗
Suhadolnik Kate EileenChief Financial Officer S Sale2026-08-212026-08-243,927$0.40 $1.6K156,830SEC↗
Goodman Kelly F.SEE REMARKS S Sale2026-08-212026-08-245,400$0.40 $2.2K205,220SEC↗
Buckley Drew PCEO P Buy2026-06-042026-06-0825,000$1.03 $25.8K25,000SEC↗
Garabedian RaffiDirector A Award2026-05-292026-06-0213,513— $053,185SEC↗
Hossfeld RichDirector A Award2026-05-292026-06-0213,513— $041,372SEC↗
Nijhawan SandeepDirector A Award2026-05-292026-06-0213,513— $042,563SEC↗
Quarls HarryDirector A Award2026-05-292026-06-0213,513— $068,769SEC↗
WELLMAN ALEXIDirector A Award2026-05-292026-06-0213,513— $052,399SEC↗
Goodman Kelly F.SEE REMARKS S Sale2026-05-222026-05-262,751$0.93 $2.6K210,620SEC↗
Suhadolnik Kate EileenChief Financial Officer S Sale2026-05-222026-05-261,922$0.93 $1.8K160,757SEC↗
Goodman Kelly F.SEE REMARKS S Sale2026-05-212026-05-262,482$0.92 $2.3K213,371SEC↗
Suhadolnik Kate EileenChief Financial Officer S Sale2026-05-212026-05-261,735$0.92 $1.6K162,679SEC↗
Goodman Kelly F.SEE REMARKS S Sale2026-02-202026-02-262,269$1.54 $3.5K215,853SEC↗
Suhadolnik Kate EileenChief Financial Officer S Sale2026-02-202026-02-26741$1.54 $1.1K164,414SEC↗
Goodman Kelly F.SEE REMARKS A Award deriv2026-02-132026-02-26137,500— $0137,500SEC↗
Suhadolnik Kate EileenChief Financial Officer A Award deriv2026-02-132026-02-26137,500— $0137,500SEC↗
Goodman Kelly F.SEE REMARKS A Award2026-02-132026-02-26137,500— $0218,122SEC↗
Suhadolnik Kate EileenChief Financial Officer A Award2026-02-132026-02-26137,500— $0165,155SEC↗
Buckley Drew PCEO A Award deriv2026-01-282026-01-29550,000— $0550,000SEC↗
Goodman Kelly F.Interim CEO F Tax w/h2025-11-202025-11-214,513$2.40 $10.8K80,622SEC↗
Suhadolnik Kate EileenInterim CFO F Tax w/h2025-11-202025-11-211,299$2.40 $3.1K27,655SEC↗
Teamey KyleDirector A Award2025-10-132025-10-1513,513— $038,740SEC↗
Hossfeld RichDirector A Award2025-10-132025-10-1513,513— $027,859SEC↗
Garabedian RaffiDirector A Award2025-10-132025-10-1513,513— $039,672SEC↗
Nijhawan SandeepDirector A Award2025-10-132025-10-1513,513— $029,050SEC↗
Quarls HarryDirector A Award2025-10-132025-10-1513,513— $013,513SEC↗
WELLMAN ALEXIDirector A Award2025-10-132025-10-1513,513— $038,886SEC↗
NIGGLI MICHAEL RDirector A Award2025-10-132025-10-1513,513— $090,825SEC↗
Goodman Kelly F.Interim CEO F Tax w/h2025-08-202025-08-214,326$1.61 $7.0K85,135SEC↗
Suhadolnik Kate EileenInterim CFO F Tax w/h2025-08-202025-08-291,232$1.61 $2.0K28,954SEC↗
Trivedi Jigish DhirajlalCOO A Award2025-08-182025-09-05275,000— $0275,000SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2025-05-202025-05-222,741$1.96 $5.4K109,392SEC↗
Goodman Kelly F.Interim CEO F Tax w/h2025-05-202025-05-222,164$1.96 $4.2K89,461SEC↗
Goodman Kelly F.Interim CEO A Award2025-04-132025-04-1536,930— $091,625SEC↗
Rabb AnthonyChief Financial Officer A Award2025-04-132025-04-1542,500— $0112,133SEC↗
Goodman Kelly F.Interim CEO F Tax w/h2025-02-202025-04-041,489$4.81 $7.2K54,695SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2025-02-202025-04-151,987$4.81 $9.6K69,633SEC↗
Goodman Kelly F.Interim CEO A Award2025-02-102025-04-0410,000— $056,184SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2024-11-202025-04-151,889$5.21 $9.8K71,620SEC↗
Dresselhuys Eric P.Chief Executive Officer P Buy2024-11-182024-11-181,000$5.23 $5.2K180,580SEC↗
Nijhawan SandeepDirector S Sale2024-09-112024-09-177,000$5.72 $40.0K15,537SEC↗
Teamey KyleDirector P Buy2024-08-302024-09-03142$6.73 $95625,227SEC↗
NIGGLI MICHAEL RDirector M Exercise deriv2024-08-292024-09-0311,852— $00SEC↗
NIGGLI MICHAEL RDirector M Exercise2024-08-292024-09-0311,852$6.88 $81.5K77,312SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2024-08-202025-04-151,886$8.19 $15.4K73,509SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2024-05-202025-04-151,886$12.15 $22.9K75,395SEC↗
WELLMAN ALEXIDirector A Award2024-05-172024-05-17202,702— $0380,633SEC↗
Teamey KyleDirector A Award2024-05-172024-05-17202,702— $0376,311SEC↗
Quarls HarryDirector A Award2024-05-172024-05-17202,702— $0626,158SEC↗
Nijhawan SandeepDirector A Award2024-05-172024-05-17202,702— $0338,075SEC↗
NIGGLI MICHAEL RDirector A Award2024-05-172024-05-17202,702— $0951,896SEC↗
Garabedian RaffiDirector A Award2024-05-172024-05-17202,702— $0392,429SEC↗
Hossfeld RichDirector A Award2024-05-172024-05-17202,702— $0215,202SEC↗
Hossfeld RichDirector D To issuer2024-05-152024-05-17135,373— $012,500SEC↗
Teamey KyleDirector P Buy2024-05-142024-05-151,250$0.79 $988173,609SEC↗
Quarls HarryDirector P Buy2024-05-102024-05-1357,310$0.79 $45.3K423,456SEC↗
Quarls HarryDirector P Buy2024-05-092024-05-0942,690$0.84 $35.9K366,146SEC↗
Hossfeld RichDirector P Buy2024-03-152024-03-182,300$0.73 $1.7K147,873SEC↗
Hossfeld RichDirector P Buy2024-03-152024-03-18200$0.73 $146145,573SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2024-03-072024-05-08622,771— $02,718,239SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2024-02-202025-04-151,044$13.67 $14.3K77,281SEC↗
Rabb AnthonyChief Financial Officer A Award2024-02-152024-02-16550,000— $01,242,468SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2023-11-202025-04-154,298$17.55 $75.4K78,325SEC↗
Quarls HarryDirector P Buy2023-11-162023-11-165,489$1.25 $6.9K323,456SEC↗
Quarls HarryDirector P Buy2023-11-152023-11-1567,118$1.35 $90.6K317,967SEC↗
Quarls HarryDirector P Buy2023-11-142023-11-1480,579$1.27 $102.3K250,849SEC↗
Teamey KyleDirector P Buy2023-11-132023-11-131,000$1.11 $1.1K172,359SEC↗
Quarls HarryDirector P Buy2023-11-132023-11-1346,814$1.10 $51.5K170,270SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award deriv2023-09-052023-09-06192,926— $0192,926SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2023-09-052023-09-06128,617— $02,095,468SEC↗
Quarls HarryDirector A Award deriv2023-08-282023-08-30185,184— $0185,184SEC↗
Quarls HarryDirector A Award2023-08-282023-08-30123,456— $0123,456SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2023-08-202025-04-15106$18.15 $1.9K82,623SEC↗
Rabb AnthonyChief Financial Officer F Tax w/h2023-05-202025-04-15100$18.00 $1.8K82,729SEC↗
Hossfeld RichDirector A Award2023-05-192023-05-22135,373— $0145,373SEC↗
WELLMAN ALEXIDirector A Award2023-05-192023-05-22135,373— $0177,931SEC↗
Teamey KyleDirector A Award2023-05-192023-05-22135,373— $0171,359SEC↗
NIGGLI MICHAEL RDirector A Award2023-05-192023-05-22135,373— $0749,194SEC↗
Garabedian RaffiDirector A Award2023-05-192023-05-22135,373— $0189,727SEC↗
Nijhawan SandeepDirector A Award2023-05-192023-05-24135,373— $0135,373SEC↗
Hossfeld RichDirector P Buy2023-05-162023-05-1610,000$0.81 $8.1K10,000SEC↗
NIGGLI MICHAEL RDirector P Buy2023-05-162023-05-1710,000$0.81 $8.1K613,821SEC↗
Teamey KyleDirector P Buy2023-05-152023-05-16100$0.84 $8435,986SEC↗
Teamey KyleDirector P Buy2023-05-152023-05-163,900$0.84 $3.3K35,886SEC↗
NIGGLI MICHAEL RDirector P Buy2023-05-122023-05-1520,000$1.13 $22.6K603,821SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2023-04-262023-04-26622,771— $01,966,851SEC↗
Rabb AnthonyChief Financial Officer A Award2023-03-132024-02-1676,452— $0692,468SEC↗
Rabb AnthonyChief Financial Officer A Award2023-03-132023-03-1477,949— $0693,965SEC↗
Evans Craig EPresident A Award2023-03-132023-03-14467,694— $02,859,868SEC↗
Teamey KyleDirector P Buy2023-03-072023-03-072,500$1.61 $4.0K31,986SEC↗
NIGGLI MICHAEL RDirector P Buy2023-03-062023-03-075,000$1.65 $8.3K583,821SEC↗
Evans Craig EPresident S Sale2023-02-212023-02-235,536$2.04 $11.3K5,561,524SEC↗
Evans Craig EPresident S Sale2023-02-212023-02-234,915— $02,392,174SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2023-02-212023-02-2323,440$2.04 $47.8K1,344,080SEC↗
NIGGLI MICHAEL RDirector P Buy2022-12-152022-12-1619,100$2.56 $48.9K578,821SEC↗
Evans Craig EPresident S Sale2022-11-212022-11-2250,000$3.52 $176.0K5,591,617SEC↗
Evans Craig EPresident S Sale2022-11-212022-11-226,350$3.82 $24.3K2,397,089SEC↗
Evans Craig EPresident S Sale2022-11-212022-11-228,217$3.82 $31.4K5,583,400SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-11-212022-11-2214,339$3.82 $54.8K1,367,520SEC↗
Evans Craig EPresident S Sale2022-11-182022-11-2250,000$3.93 $196.5K2,403,439SEC↗
Moftakhar AmirChief Financial Officer S Sale2022-10-192022-10-204,193$3.48 $14.6K563,043SEC↗
Moftakhar AmirChief Financial Officer S Sale2022-10-192022-10-204,193$3.48 $14.6K558,850SEC↗
Moftakhar AmirChief Financial Officer S Sale2022-10-172022-10-1863,205$4.03 $254.7K583,956SEC↗
Moftakhar AmirChief Financial Officer S Sale2022-10-172022-10-1916,720$3.72 $62.2K567,236SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-10-172022-10-1919,398$3.72 $72.2K1,401,257SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-10-172022-10-1919,398$3.72 $72.2K1,381,859SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-10-172022-10-1957,027$3.72 $212.1K1,434,914SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-10-172022-10-1914,259$3.72 $53.0K1,420,655SEC↗
Song JuliaChief Technology Officer S Sale2022-10-172022-10-1912,628$3.72 $47.0K2,453,439SEC↗
Song JuliaChief Technology Officer S Sale2022-10-172022-10-1916,340$3.72 $60.8K5,625,277SEC↗
WELLMAN ALEXIDirector A Award2022-06-012022-06-0329,486— $042,558SEC↗
NIGGLI MICHAEL RDirector A Award2022-06-012022-06-0329,486— $0559,721SEC↗
Wilson Daryl CDirector A Award2022-06-012022-06-0329,486— $075,850SEC↗
Teamey KyleDirector A Award2022-06-012022-06-0329,486— $029,486SEC↗
Garabedian RaffiDirector A Award2022-06-012022-06-0329,486— $054,354SEC↗
Gast ClaudiaDirector A Award2022-06-012022-06-0329,486— $059,694SEC↗
NIGGLI MICHAEL RDirector P Buy2022-03-012022-03-0320,000$5.01 $100.2K530,235SEC↗
Gast ClaudiaDirector A Award2022-02-172022-02-1830,208— $030,208SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2022-02-162022-02-18622,771— $01,491,941SEC↗
Song JuliaChief Technology Officer A Award2022-02-082022-02-09268,358— $05,641,617SEC↗
Song JuliaChief Technology Officer A Award2022-02-082022-02-09207,367— $02,466,067SEC↗
Moftakhar AmirChief Financial Officer A Award2022-02-082022-02-09268,358— $0647,161SEC↗
Bodner JeffChief Accounting Officer A Award2022-02-082022-02-0932,934— $054,900SEC↗
Dresselhuys Eric P.Chief Executive Officer S Sale2022-01-242022-01-2559,642$6.05 $360.8K869,170SEC↗
Evans Craig EPresident S Sale2022-01-242022-01-251,342$6.05 $8.1K5,373,083SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2022-01-172022-01-1988,031— $0928,812SEC↗
Song JuliaChief Technology Officer A Award2022-01-172022-01-192,934— $05,374,425SEC↗
Dresselhuys Eric P.Chief Executive Officer F Tax w/h2022-01-042022-01-0652,216$11.50 $600.5K840,781SEC↗
Evans Craig EPresident F Tax w/h2022-01-042022-01-0620,193$11.50 $232.2K5,371,491SEC↗
Evans Craig EPresident F Tax w/h2022-01-042022-01-0619,404$11.50 $223.1K2,258,627SEC↗
Moftakhar AmirChief Financial Officer F Tax w/h2022-01-042022-01-0637,821$11.50 $434.9K378,793SEC↗
Bodner JeffChief Accounting Officer F Tax w/h2022-01-042022-01-064,225$11.50 $48.6K21,966SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2021-12-172021-12-21762,938— $0892,997SEC↗
Bodner JeffChief Accounting Officer A Award2021-12-172021-12-2115,000— $026,191SEC↗
WELLMAN ALEXIDirector A Award2021-12-172021-12-2113,072— $013,072SEC↗
Wilson Daryl CDirector A Award2021-11-152021-11-1746,364— $046,364SEC↗
Dresselhuys Eric P.Chief Executive Officer A Award2021-11-152021-11-17130,059— $0130,059SEC↗
Garabedian RaffiDirector A Award2021-11-152021-11-1724,868— $024,868SEC↗
Bodner JeffChief Accounting Officer A Award2021-11-152021-11-1711,191— $011,191SEC↗
NIGGLI MICHAEL RDirector A Award2021-11-152021-11-1730,053— $0510,219SEC↗
Moftakhar AmirChief Financial Officer A Award2021-11-152021-11-17101,026— $0416,614SEC↗
Song JuliaChief Technology Officer J Other2021-11-092021-11-12304,194$10.00 $3.04M2,221,405SEC↗
Song JuliaChief Technology Officer J Other2021-11-092021-11-1211,670$10.00 $116.7K4,614,123SEC↗
Moftakhar AmirChief Financial Officer J Other2021-11-092021-11-1243,216$10.00 $432.2K315,588SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1211,670$10.00 $116.7K85,225SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1211,670$10.00 $116.7K85,225SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1265,752$10.00 $657.5K480,166SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1231,140$10.00 $311.4K227,400SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1211,670$10.00 $116.7K85,225SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1211,670$10.00 $116.7K85,225SEC↗
Breakthrough Energy Ventures, 10% Owner J Other2021-11-092021-11-1220,096— $018,558,721SEC↗
Breakthrough Energy Ventures, 10% Owner J Other2021-11-092021-11-122,500,751— $018,558,721SEC↗
SOFTBANK GROUP CORPDirector, 10% Owner J Other2021-11-092021-11-124,204,936— $035,919,908SEC↗
SOFTBANK GROUP CORPDirector, 10% Owner J Other2021-11-092021-11-1233,791— $035,953,699SEC↗
Evans Craig EPresident J Other2021-11-092021-11-17730,247$10.00 $7.30M5,332,700SEC↗
NIGGLI MICHAEL RDirector J Other2021-11-092021-11-1777,822$10.00 $778.2K568,302SEC↗
Song JuliaChief Technology Officer A Award2021-11-092021-11-1756,626— $02,278,031SEC↗
Song JuliaChief Technology Officer A Award2021-11-092021-11-1758,984— $05,391,684SEC↗
ACON S2 Sponsor, L.L.C.10% Owner J Other deriv2021-10-082021-10-134,083,334— $04,083,334SEC↗
ACON S2 Sponsor, L.L.C.10% Owner C Conversion deriv2021-10-082021-10-136,100,000— $00SEC↗
Levy Sarah KirshbaumDirector C Conversion deriv2021-10-082021-10-1350,000— $00SEC↗
Shadrick-Wilson Ryan DDirector C Conversion deriv2021-10-082021-10-1350,000— $00SEC↗
Goddard JanieDirector C Conversion deriv2021-10-082021-10-1350,000— $00SEC↗
ACON S2 Sponsor, L.L.C.10% Owner C Conversion2021-10-082021-10-136,100,000— $06,100,000SEC↗
Levy Sarah KirshbaumDirector C Conversion2021-10-082021-10-1350,000— $050,000SEC↗
Shadrick-Wilson Ryan DDirector C Conversion2021-10-082021-10-1350,000— $050,000SEC↗
Goddard JanieDirector C Conversion2021-10-082021-10-1350,000— $050,000SEC↗