GWH Insider Trading

Insider Trading Chart
Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 1.70%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $0.00

ESS Tech Insider Trading History Chart

ESS Tech Share Price & Price History

^$2.40

▲ +0.126 (5.55%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

ESS Tech Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
9/11/2024	Sandeep Nijhawan	Director	Sell	7,000	$5.72	$40,040.00	15,537
8/30/2024	Kyle Teamey	Director	Buy	142	$6.73	$955.66	25,227
5/14/2024	Kyle Teamey	Director	Buy	83	$11.85	$983.55	11,573
5/9/2024	Harry Quarls	Director	Buy	2,846	$12.60	$35,859.60	24,409
3/15/2024	Rich Hossfeld	Director	Buy	166	$10.95	$1,817.70	9,858
3/6/2023	Michael R Niggli	Director	Buy	333	$24.75	$8,241.75	38,921
12/15/2022	Michael R Niggli	Director	Buy	1,273	$38.40	$48,883.20	38,588

SEC Filings (Institutional Ownership Changes) for ESS Tech (NYSE:GWH)

46.77% of ESS Tech stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

ESS Tech Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/18/2025	Yorkville Advisors Global LP	48,374	$74K	0.0%	N/A	0.332%
11/17/2025	Citadel Advisors LLC	19,773	$30K	0.0%	N/A	0.136%
5/15/2025	Baird Financial Group Inc.	367,517	$1.20M	0.0%	-9.5%	3.036%
4/9/2025	Green Alpha Advisors LLC	14,804	$48K	0.1%	-40.6%	0.122%
2/17/2025	Baird Financial Group Inc.	405,938	$2.39M	0.0%	+78.5%	3.416%
2/13/2025	Renaissance Technologies LLC	16,260	$96K	0.0%	-16.9%	0.137%
11/16/2024	Geode Capital Management LLC	50,451	$0.32M	0.0%	-94.2%	0.428%
11/15/2024	State Street Corp	16,538	$0.11M	0.0%	-94.6%	0.140%
11/13/2024	FMR LLC	52,485	$0.33M	0.0%	-93.5%	0.445%
11/5/2024	GSA Capital Partners LLP	91,195	$0.58M	0.0%	-87.9%	0.773%
10/7/2024	Green Alpha Advisors LLC	25,025	$0.16M	0.1%	-88.2%	0.014%
9/16/2024	Point72 DIFC Ltd	39,197	$32K	0.0%	N/A	0.022%
9/16/2024	Point72 Asia Singapore Pte. Ltd.	180,370	$0.15M	0.0%	N/A	0.103%
8/15/2024	AQR Capital Management LLC	102,262	$84K	0.0%	N/A	0.058%
8/15/2024	Point72 Asia Singapore Pte. Ltd.	180,370	$0.15M	0.0%	N/A	0.103%
8/14/2024	Point72 DIFC Ltd	39,197	$32K	0.0%	N/A	0.022%
8/12/2024	Vanguard Personalized Indexing Management LLC	33,498	$27K	0.0%	N/A	0.019%
8/9/2024	Renaissance Technologies LLC	203,200	$0.17M	0.0%	-64.9%	0.116%
7/10/2024	CWM LLC	41,109	$34K	0.0%	N/A	0.024%
5/16/2024	Paloma Partners Management Co	37,571	$27K	0.0%	N/A	0.021%
5/14/2024	Healthcare of Ontario Pension Plan Trust Fund	137,142	$99K	0.0%	-14.5%	0.078%
5/10/2024	Vanguard Group Inc.	3,263,849	$2.36M	0.0%	+6.9%	1.866%
5/7/2024	SG Americas Securities LLC	43,350	$31K	0.0%	N/A	0.025%
4/10/2024	Green Alpha Advisors LLC	219,440	$0.16M	0.1%	+11.7%	0.125%
1/26/2024	Cerity Partners LLC	71,130	$81K	0.0%	N/A	0.041%
1/5/2024	Green Alpha Advisors LLC	196,418	$0.22M	0.2%	+211.1%	0.114%
11/15/2023	Ardsley Advisory Partners LP	200,000	$0.38M	0.1%	N/A	0.129%
11/13/2023	Healthcare of Ontario Pension Plan Trust Fund	132,302	$0.25M	0.0%	+9.6%	0.085%
11/13/2023	Invesco Ltd.	5,009,904	$9.42M	0.0%	+81.2%	3.220%
11/8/2023	Pathstone Family Office LLC	39,658	$75K	0.0%	N/A	0.025%
10/24/2023	Redmond Asset Management LLC	188,254	$0.35M	0.1%	+91.8%	0.121%
10/24/2023	Bank of New York Mellon Corp	295,776	$0.56M	0.0%	+3.6%	0.190%
10/23/2023	Commonwealth Equity Services LLC	13,229	$25K	0.0%	-82.7%	0.009%
10/11/2023	Smith Anglin Financial LLC	14,300	$27K	0.0%	N/A	0.009%
10/11/2023	C2C Wealth Management LLC	25,376	$46K	0.0%	-29.5%	0.016%
10/10/2023	Green Alpha Advisors LLC	63,133	$0.12M	0.1%	N/A	0.041%
9/21/2023	Barclays PLC	18,991	$28K	0.0%	-53.5%	0.012%
5/10/2023	Connor Clark & Lunn Investment Management Ltd.	78,463	$0.11M	0.0%	N/A	0.051%
5/8/2023	Zurcher Kantonalbank Zurich Cantonalbank	32,536	$45K	0.0%	+109.5%	0.021%
5/4/2023	Mirae Asset Global Investments Co. Ltd.	1,335,848	$1.86M	0.0%	N/A	0.866%
4/28/2023	SG Americas Securities LLC	49,407	$69K	0.0%	+242.5%	0.032%
2/9/2023	First Trust Advisors LP	961,539	$2.33M	0.0%	-3.1%	0.627%
2/9/2023	HighTower Advisors LLC	138,461	$0.34M	0.0%	N/A	0.090%
2/2/2023	SG Americas Securities LLC	14,424	$35K	0.0%	N/A	0.009%
2/2/2023	ProShare Advisors LLC	10,380	$25K	0.0%	N/A	0.007%
1/31/2023	Kestra Advisory Services LLC	56,000	$0.14M	0.0%	+38.3%	0.037%
1/25/2023	Chase Investment Counsel Corp	19,825	$48K	0.0%	N/A	0.013%
1/18/2023	Private Trust Co. NA	10,500	$26K	0.0%	N/A	0.007%
11/15/2022	Electron Capital Partners LLC	1,093,561	$4.47M	0.2%	N/A	0.714%
11/14/2022	Ergoteles LLC	13,033	$53K	0.0%	N/A	0.009%
11/14/2022	Healthcare of Ontario Pension Plan Trust Fund	194,700	$0.80M	0.0%	+34.6%	0.127%
11/9/2022	Zurcher Kantonalbank Zurich Cantonalbank	16,339	$67K	0.0%	N/A	0.011%
10/27/2022	Van ECK Associates Corp	490,630	$2.01M	0.0%	-1.2%	0.320%
10/26/2022	IQ EQ FUND MANAGEMENT IRELAND Ltd	50,451	$0.21M	0.0%	+17.3%	0.033%
10/25/2022	Raymond James Financial Services Advisors Inc.	11,064	$45K	0.0%	-88.9%	0.007%
8/23/2022	Captrust Financial Advisors	33,800	$95K	0.0%	N/A	0.022%
8/12/2022	Ensign Peak Advisors Inc	30,220	$85K	0.0%	N/A	0.020%
8/12/2022	Parcion Private Wealth LLC	17,013	$56K	0.0%	N/A	0.011%
8/11/2022	Healthcare of Ontario Pension Plan Trust Fund	144,642	$0.41M	0.0%	+17.9%	0.095%
8/9/2022	Swiss National Bank	125,800	$0.35M	0.0%	N/A	0.082%
8/4/2022	Brighton Jones LLC	17,726	$50K	0.0%	N/A	0.012%
8/3/2022	Van ECK Associates Corp	496,840	$1.40M	0.0%	+6,165.3%	0.325%
8/3/2022	IQ EQ FUND MANAGEMENT IRELAND Ltd	43,017	$0.12M	0.0%	N/A	0.028%
7/28/2022	Arizona State Retirement System	14,470	$41K	0.0%	N/A	0.009%
7/26/2022	Mirae Asset Global Investments Co. Ltd.	23,075	$65K	0.0%	N/A	0.015%
7/25/2022	Strs Ohio	18,800	$52K	0.0%	N/A	0.012%
5/12/2022	Blueshift Asset Management LLC	40,813	$0.23M	0.0%	N/A	0.027%
5/10/2022	Keebeck Alpha LP	28,321	$0.16M	0.0%	N/A	0.019%
5/10/2022	Fox Run Management L.L.C.	24,598	$0.14M	0.1%	N/A	0.016%
5/6/2022	Laird Norton Trust Company LLC	332,772	$1.85M	0.2%	N/A	0.218%
5/6/2022	CPR Investments Inc.	10,394	$58K	0.0%	N/A	0.007%
5/3/2022	Redmond Asset Management LLC	98,330	$0.55M	0.2%	+3.8%	0.064%
4/28/2022	Highland Private Wealth Management	137,117	$0.76M	0.1%	N/A	0.090%
4/26/2022	Sciencast Management LP	19,300	$0.11M	0.0%	N/A	0.013%
2/15/2022	Softbank Group Corp	35,953,699	$411.31M	3.9%	N/A	23.684%
2/14/2022	LMR Partners LLP	39,893	$0.46M	0.0%	N/A	0.026%
2/14/2022	Invesco Ltd.	1,600,214	$18.31M	0.0%	N/A	1.054%
2/11/2022	Allianz Asset Management GmbH	24,830	$0.28M	0.0%	N/A	0.016%
2/10/2022	Qube Research & Technologies Ltd	41,913	$0.48M	0.0%	N/A	0.028%
2/8/2022	Northern Trust Corp	90,053	$1.03M	0.0%	N/A	0.059%
2/7/2022	Victory Capital Management Inc.	11,624	$0.13M	0.0%	N/A	0.008%
2/4/2022	Redmond Asset Management LLC	94,749	$1.08M	0.3%	N/A	0.062%
2/3/2022	Advisor Group Holdings Inc.	9,398	$0.11M	0.0%	N/A	0.006%
2/3/2022	Greenhouse Wealth Management LLC	50,000	$0.13M	0.1%	N/A	0.033%
2/1/2022	Qube Research & Technologies Ltd	41,913	$0.48M	0.0%	N/A	0.028%
1/26/2022	Van ECK Associates Corp	7,800	$89K	0.0%	N/A	0.005%
11/15/2021	Marshall Wace LLP	878,630	$8.78M	0.0%	N/A	2.812%

Data available starting January 2016

ESS Tech, Inc., an energy storage company, designs and produces iron flow batteries for commercial and utility-scale energy storage applications worldwide. It offers energy storage products, which include Energy Warehouse, a behind-the-meter solution; and Energy Center, a front-of-the-meter solution. The company was founded in 2011 and is headquartered in Wilsonville, Oregon.

Today's Range

Now: $2.40

$2.22

$2.45

50 Day Range

MA: $3.51

$1.51

$9.20

52 Week Range

Now: $2.40

$0.76

$13.87

Volume

798,535 shs

Average Volume

595,023 shs

Market Capitalization

$47.01 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.43

Who are the company insiders with the largest holdings of ESS Tech?: ESS Tech's top insider shareholders include:
Kyle Teamey (Director)
Harry Quarls (Director)
Sandeep Nijhawan (Director)
Rich Hossfeld (Director)
Learn More about top insider investors at ESS Tech.
Who are the major institutional investors of ESS Tech?: ESS Tech's top institutional investors include:
Yorkville Advisors Global LP — 0.33%
Citadel Advisors LLC — 0.14%
Learn More about top institutional investors of ESS Tech stock.
Which major investors are buying ESS Tech stock?: Within the previous quarter, GWH stock was purchased by institutional investors including:
Yorkville Advisors Global LP
Citadel Advisors LLC
Within the previous year, these company insiders have bought ESS Tech stock:
Kyle Teamey (Director)
Harry Quarls (Director)
Sandeep Nijhawan (Director)
Learn More investors buying ESS Tech stock.