ESS Tech, Inc.

NYSE:GWH Stock Report

Market Cap: US$12.8m

ESS Tech Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:GWH Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
18 Nov 24BuyUS$5,227Eric DresselhuysIndividual1,000US$5.23
13 Sep 24SellUS$602,580Craig EvansIndividual100,676US$7.11
13 Sep 24SellUS$739,517Julia SongIndividual125,318US$7.11
11 Sep 24SellUS$40,040Sandeep NijhawanIndividual7,000US$5.72
30 Aug 24BuyUS$956Kyle TeameyIndividual142US$6.73

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of GWH?
Owner TypeNumber of SharesOwnership Percentage
Private Companies25,7560.213%
Individual Insiders455,3933.76%
Institutions974,4018.05%
VC/PE Firms2,552,95121.1%
Public Companies3,496,43028.9%
General Public4,598,81938%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 61.38% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
19.8%
SoftBank Group Corp.
2,396,980US$2.5m0%no data
10.2%
Breakthrough Energy Ventures, LLC
1,237,288US$1.3m0%no data
9.08%
Honeywell International Inc.
1,099,450US$1.2m0%no data
5.8%
Pangaea Ventures Ltd.
701,975US$744.1k0%no data
5.07%
Cycle Capital Management Inc.
613,688US$650.5k0%100.0%
3.04%
Robert W. Baird & Co. Incorporated, Asset Management Arm
367,517US$389.6k-9.46%no data
1.8%
The Vanguard Group, Inc.
217,991US$231.1k16.1%no data
1.15%
Michael Niggli
139,570US$147.9k0%no data
0.9%
Anthony Rabb
109,392US$116.0k406%no data
0.74%
Kelly Goodman
89,461US$94.8k63.6%no data
0.7%
GSA Capital Partners LLP
85,084US$90.2k-23.9%0.01%
0.45%
BlackRock, Inc.
54,593US$57.9k0%no data
0.43%
FMR LLC
52,485US$55.6k0%no data
0.43%
Geode Capital Management, LLC
52,097US$55.2k4.62%no data
0.4%
Eric Dresselhuys
49,008US$51.9k-72.9%no data
0.19%
Harry Quarls
22,744US$24.1k13.7%no data
0.18%
Laird Norton Tyee Trust Company
21,184US$22.5k0%no data
0.17%
Millennium Management LLC
21,147US$22.4k-42.5%no data
0.13%
State Street Global Advisors, Inc.
16,304US$17.3k0%no data
0.13%
Renaissance Technologies LLC
15,860US$16.8k-2.46%no data
0.12%
Green Alpha Advisors, LLC
14,804US$15.7k-40.6%0.01%
0.12%
Raffi Garabedian
14,303US$15.2k13.1%no data
0.1%
Monoc Capital Ltd.
12,666US$13.4k-0.01%no data
0.099%
UBS Asset Management AG
12,007US$12.7k-24%no data
0.098%
Alexi Wellman
11,860US$12.6k2.49%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/06/16 11:01
End of Day Share Price 2025/06/16 00:00
Earnings2025/03/31
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

ESS Tech, Inc. is covered by 7 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
George GianarikasBaird
Benjamin KalloBaird
Joseph OshaGuggenheim Securities, LLC