ESS Tech, Inc.

For the period ended Jun 30, 2025. Filed Aug 14, 2025.

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.

Jun 30, 2025 · Filed Aug 14, 2025

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Contents

Condensed Statements of Operations and Comprehensive Loss

(in thousands, except share and per share data)

	Three Months Ended June 30,		Six Months Ended June 30,
	2025	2024	2025	2024
Revenue:
Revenue	$56	$342	$627	$2,556
Revenue - related parties	2,302	6	2,330	530
Total revenue	2,358	348	2,957	3,086
Cost of revenue	7,459	11,748	16,205	22,874
Gross profit (loss)	(5,101)	(11,400)	(13,248)	(19,788)
Operating expenses
Research and development	1,424	2,836	3,902	6,382
Sales and marketing	1,304	2,711	3,254	4,745
General and administrative	3,728	6,178	9,299	11,704
Total operating expenses	6,456	11,725	16,455	22,831
Loss from operations	(11,557)	(23,125)	(29,703)	(42,619)
Other income, net
Interest income, net	30	1,052	246	2,291
Gain on revaluation of common stock warrant liabilities	459	115	344	115
Other income (expense), net	12	18	31	(37)
Total other income, net	501	1,185	621	2,369
Net loss and comprehensive loss to common stockholders	$(11,056)	$(21,940)	$(29,082)	$(40,250)
Net loss per share - basic and diluted	$(0.90)	$(1.87)	$(2.39)	$(3.45)
Weighted-average shares used in per share calculation - basic and diluted	12,271,587	11,717,238	12,152,245	11,675,770

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.