ESS Tech, Inc.

For the period ended Mar 31, 2026. Filed May 7, 2026.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 7, 2026

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Contents

Condensed Consolidated Statements of Stockholders' Equity

(in thousands, except share data)

Common Stock · Additional Paid-InCapital · AccumulatedDeficit · Total Stockholders'Equity
Shares · Amount
Balance as of December 31, 2024	11,986,516	$1	$811,262	$(782,379)	$28,884
Issuance of common stock under stock-based compensation plans, net of stock withheld for taxes	117,234	—	(13)	—	(13)
Stock-based compensation expense	—	—	1,234	—	1,234
Net loss	—	—	—	(18,026)	(18,026)
Balance as of March 31, 2025	12,103,750	$1	$812,483	$(800,405)	$12,079
Balance as of December 31, 2025	22,377,003	$2	$854,435	$(845,819)	$8,618
Issuance of common stock under stock-based compensation plans, net of stock withheld for taxes	35,461	—	—	—	—
Stock-based compensation expense	—	—	789	—	789
Issuance of common stock under the ATM and RDO, net of issuance costs	4,623,075	1	7,621	—	7,622
Issuance of pre-funded common stock warrants	—	—	8,064	—	8,064
Issuance of common stock upon exercise of warrants	750,000	—	—	—	—
Issuance of common stock to non-employees for services rendered and assets purchased, net of issuance costs	137,452	—	275	—	275
Net loss	—	—	—	(15,922)	(15,922)
Balance as of March 31, 2026	27,922,991	$3	$871,184	$(861,741)	$9,446

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.