GWH

ESS Tech, Inc.

Company with tickers: GWH, GWH-WT

Market Cap

$22.45M

Shares Outstanding

29,389,170

CIK

1819438

CUSIP

26916J205

13F Activity (30d)

3 filings 2 filers

Investor Relations

Investor relations

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-1

Net shares bought

0.05%

Net buy value

+$17,420

Date	Insider	Role	Type	Shares	Price	Value	After
2026-06-04	Buckley Drew P	Director, CEO	Buy	25,000	$1.03	$25,660	25,000
2026-05-29	WELLMAN ALEXI	Director	Award	13,513	—	—	52,399
2026-05-29	Quarls Harry	Director	Award	13,513	—	—	68,769
2026-05-29	Nijhawan Sandeep	Director	Award	13,513	—	—	42,563
2026-05-29	Garabedian Raffi	Chief Technology Officer	Award	13,513	—	—	53,185
2026-05-29	Hossfeld Rich	Director	Award	13,513	—	—	41,372
2026-05-22	Suhadolnik Kate Eileen	Chief Financial Officer	Sell	1,922	$0.93	$1,796	160,757
2026-05-22	Goodman Kelly F.	SEE REMARKS	Sell	2,751	$0.93	$2,571	210,620
2026-05-21	Suhadolnik Kate Eileen	Chief Financial Officer	Sell	1,735	$0.92	$1,593	162,679
2026-05-21	Goodman Kelly F.	SEE REMARKS	Sell	2,482	$0.92	$2,279	213,371
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	Suhadolnik Kate Eileen	Chief Financial Officer	Award	137,500	—	—	165,155
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	Goodman Kelly F.	SEE REMARKS	Award	137,500	—	—	137,500
2026-01-28	Buckley Drew P	Director, CEO	Award	550,000	—	—	550,000
2025-11-20	Goodman Kelly F.	SEE REMARKS	Tax	4,513	$2.40	$10,831	80,622
2025-11-20	Suhadolnik Kate Eileen	Chief Financial Officer	Tax	1,299	$2.40	$3,118	27,655
2025-10-13	NIGGLI MICHAEL R	Director	Award	13,513	—	—	90,825
2025-10-13	Teamey Kyle	Director	Award	13,513	—	—	38,740
2025-10-13	WELLMAN ALEXI	Director	Award	13,513	—	—	38,886
2025-10-13	Hossfeld Rich	Director	Award	13,513	—	—	27,859
2025-10-13	Garabedian Raffi	Chief Technology Officer	Award	13,513	—	—	39,672
2025-10-13	Nijhawan Sandeep	Director	Award	13,513	—	—	29,050
2025-10-13	Quarls Harry	Director	Award	13,513	—	—	13,513
2025-08-20	Goodman Kelly F.	SEE REMARKS	Tax	4,326	$1.61	$6,965	85,135
2025-08-20	Suhadolnik Kate Eileen	Chief Financial Officer	Tax	1,232	$1.61	$1,984	28,954
2025-08-18	Trivedi Jigish Dhirajlal	COO	Other	0	—	—	0
2025-08-18	Trivedi Jigish Dhirajlal	COO	Award	275,000	—	—	275,000
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	Goodman Kelly F.	SEE REMARKS	Award	36,930	—	—	91,625
2025-04-13	Rabb Anthony	Chief Financial Officer	Award	42,500	—	—	112,133
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
2025-02-10	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	Convert	11,852	—	—	0
2024-08-29	NIGGLI MICHAEL R	Director	Convert	11,852	$6.88	$81,542	77,312
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	Quarls Harry	Director	Award	202,702	—	—	626,158
2024-05-17	Garabedian Raffi	Chief Technology Officer	Award	202,702	—	—	392,429
2024-05-17	Hossfeld Rich	Director	Award	202,702	—	—	215,202
2024-05-17	Teamey Kyle	Director	Award	202,702	—	—	376,311
2024-05-17	WELLMAN ALEXI	Director	Award	202,702	—	—	380,633

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