Stocks
GWH ESS Tech, Inc.

GWH

ESS Tech, Inc.

Company with tickers: GWH, GWH-WT

CIK

1819438

CUSIP

26916J205

Shares Outstanding

29,389,170

Price History Institutional Holders Short Volume Short Interest Fails to Deliver SEC Filings Earnings Calls Insider Trades Congressional Trades

Date	Insider	Role	Type	Shares	Price	Value	After
2026-02-20	Suhadolnik Kate Eileen	Chief Financial Officer	Sell	741	$1.54	$1,141	164,414
2026-02-20	Goodman Kelly F.	SEE REMARKS	Sell	2,269	$1.54	$3,494	215,853
2026-02-13	Goodman Kelly F.	SEE REMARKS	Award	137,500	—	—	137,500
2026-02-13	Goodman Kelly F.	SEE REMARKS	Award	137,500	—	—	218,122
2026-02-13	Suhadolnik Kate Eileen	Chief Financial Officer	Award	137,500	—	—	137,500
2026-02-13	Suhadolnik Kate Eileen	Chief Financial Officer	Award	137,500	—	—	165,155
2026-01-28	Buckley Drew P	Director, CEO	Award	550,000	—	—	550,000
2026-01-01	Buckley Drew P	Director, CEO	Other	0	—	—	0
2025-11-20	Suhadolnik Kate Eileen	Chief Financial Officer	Tax	1,299	$2.40	$3,118	27,655
2025-11-20	Goodman Kelly F.	SEE REMARKS	Tax	4,513	$2.40	$10,831	80,622
2025-10-13	Hossfeld Rich	Director	Award	13,513	—	—	27,859
2025-10-13	Teamey Kyle	Director	Award	13,513	—	—	38,740
2025-10-13	NIGGLI MICHAEL R	Director	Award	13,513	—	—	90,825
2025-10-13	Garabedian Raffi	Chief Technology Officer	Award	13,513	—	—	39,672
2025-10-13	WELLMAN ALEXI	Director	Award	13,513	—	—	38,886
2025-10-13	Quarls Harry	Director	Award	13,513	—	—	13,513
2025-10-13	Nijhawan Sandeep	Director	Award	13,513	—	—	29,050
2025-08-20	Suhadolnik Kate Eileen	Chief Financial Officer	Tax	1,232	$1.61	$1,984	28,954
2025-08-20	Goodman Kelly F.	SEE REMARKS	Tax	4,326	$1.61	$6,965	85,135
2025-08-18	Trivedi Jigish Dhirajlal	COO	Award	275,000	—	—	275,000
2025-08-18	Trivedi Jigish Dhirajlal	COO	Other	0	—	—	0
2025-08-01	Suhadolnik Kate Eileen	Chief Financial Officer	Other	30,186	—	—	30,186
2025-05-20	Goodman Kelly F.	SEE REMARKS	Tax	2,164	$1.96	$4,241	89,461
2025-05-20	Rabb Anthony	Chief Financial Officer	Tax	2,741	$1.96	$5,372	109,392
2025-04-13	Rabb Anthony	Chief Financial Officer	Award	42,500	—	—	112,133
2025-04-13	Goodman Kelly F.	SEE REMARKS	Award	36,930	—	—	91,625
2025-02-20	Goodman Kelly F.	SEE REMARKS	Tax	1,489	$4.81	$7,162	54,695
2025-02-20	Rabb Anthony	Chief Financial Officer	Tax	1,987	$4.81	$9,557	69,633
2025-02-13	Goodman Kelly F.	SEE REMARKS	Other	46,184	—	—	46,184
2025-02-10	Goodman Kelly F.	SEE REMARKS	Award	10,000	—	—	56,184
2024-11-20	Rabb Anthony	Chief Financial Officer	Tax	1,889	$5.21	$9,842	71,620
2024-11-18	Dresselhuys Eric P.	Director, Chief Executive Officer	Buy	1,000	$5.23	$5,227	180,580
2024-09-11	Nijhawan Sandeep	Director	Sell	7,000	$5.72	$40,040	15,537
2024-08-30	Teamey Kyle	Director	Buy	142	$6.73	$956	25,227
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,681	—	—	5,681
2024-08-29	NIGGLI MICHAEL R	Director	Other	21,666	—	—	21,666
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,681	—	—	5,681
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,407	—	—	5,407
2024-08-29	NIGGLI MICHAEL R	Director	Convert	11,852	$6.88	$81,542	77,312
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,407	—	—	5,407
2024-08-29	NIGGLI MICHAEL R	Director	Other	15,160	—	—	15,160
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,681	—	—	5,681
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,407	—	—	5,407
2024-08-29	NIGGLI MICHAEL R	Director	Other	5,681	—	—	5,681
2024-08-29	NIGGLI MICHAEL R	Director	Convert	11,852	—	—	0
2024-08-20	Rabb Anthony	Chief Financial Officer	Tax	1,886	$8.19	$15,455	73,509
2024-05-20	Rabb Anthony	Chief Financial Officer	Tax	1,886	$12.15	$22,915	75,395
2024-05-17	Teamey Kyle	Director	Award	202,702	—	—	376,311
2024-05-17	WELLMAN ALEXI	Director	Award	202,702	—	—	380,633
2024-05-17	Garabedian Raffi	Chief Technology Officer	Award	202,702	—	—	392,429
2024-05-17	Nijhawan Sandeep	Director	Award	202,702	—	—	338,075
2024-05-17	Quarls Harry	Director	Award	202,702	—	—	626,158
2024-05-17	Hossfeld Rich	Director	Award	202,702	—	—	215,202
2024-05-17	NIGGLI MICHAEL R	Director	Award	202,702	—	—	951,896
2024-05-17	NIGGLI MICHAEL R	Director	Other	568,312	—	—	568,312
2024-05-17	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2024-05-17	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2024-05-17	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2024-05-17	NIGGLI MICHAEL R	Director	Other	227,407	—	—	227,407
2024-05-17	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2024-05-15	Hossfeld Rich	Director	Other	135,373	—	—	12,500
2024-05-14	Teamey Kyle	Director	Buy	1,250	$0.79	$987	173,609
2024-05-10	Quarls Harry	Director	Buy	57,310	$0.79	$44,988	423,456
2024-05-09	Quarls Harry	Director	Buy	42,690	$0.84	$35,817	366,146
2024-03-15	Hossfeld Rich	Director	Buy	2,300	$0.73	$1,669	147,873
2024-03-15	Hossfeld Rich	Director	Buy	200	$0.73	$145	145,573
2024-03-07	Dresselhuys Eric P.	Director, Chief Executive Officer	Award	622,771	—	—	2,718,239
2024-02-20	Rabb Anthony	Chief Financial Officer	Tax	1,044	$13.67	$14,268	77,281
2024-02-15	Rabb Anthony	Chief Financial Officer	Award	550,000	—	—	1,242,468
2023-11-20	Rabb Anthony	Chief Financial Officer	Tax	4,298	$17.55	$75,430	78,325
2023-11-16	Quarls Harry	Director	Buy	5,489	$1.25	$6,866	323,456
2023-11-15	Quarls Harry	Director	Buy	67,118	$1.35	$90,307	317,967
2023-11-14	Quarls Harry	Director	Buy	80,579	$1.27	$102,295	250,849
2023-11-13	Quarls Harry	Director	Buy	46,814	$1.10	$51,631	170,270
2023-11-13	Teamey Kyle	Director	Buy	1,000	$1.11	$1,106	172,359
2023-09-05	Dresselhuys Eric P.	Director, Chief Executive Officer	Award	192,926	—	—	192,926
2023-09-05	Dresselhuys Eric P.	Director, Chief Executive Officer	Award	128,617	—	—	2,095,468
2023-08-28	Quarls Harry	Director	Award	185,184	—	—	185,184
2023-08-28	Quarls Harry	Director	Award	123,456	—	—	123,456
2023-08-28	Quarls Harry	Director	Other	0	—	—	0
2023-08-20	Rabb Anthony	Chief Financial Officer	Tax	106	$18.15	$1,924	82,623
2023-05-20	Rabb Anthony	Chief Financial Officer	Tax	100	$18.00	$1,800	82,729
2023-05-19	Teamey Kyle	Director	Award	135,373	—	—	171,359
2023-05-19	WELLMAN ALEXI	Director	Award	135,373	—	—	177,931
2023-05-19	Hossfeld Rich	Director	Award	135,373	—	—	145,373
2023-05-19	Nijhawan Sandeep	Director	Award	135,373	—	—	135,373
2023-05-19	Garabedian Raffi	Chief Technology Officer	Award	135,373	—	—	189,727
2023-05-19	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-19	NIGGLI MICHAEL R	Director	Other	568,312	—	—	568,312
2023-05-19	NIGGLI MICHAEL R	Director	Award	135,373	—	—	749,194
2023-05-19	NIGGLI MICHAEL R	Director	Other	227,407	—	—	227,407
2023-05-19	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-19	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-19	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-19	Nijhawan Sandeep	Director	Other	0	—	—	0
2023-05-16	Hossfeld Rich	Director	Buy	10,000	$0.81	$8,055	10,000
2023-05-16	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-16	NIGGLI MICHAEL R	Director	Other	227,407	—	—	227,407
2023-05-16	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228
2023-05-16	NIGGLI MICHAEL R	Director	Other	85,228	—	—	85,228