Dudediligence.

ClearSign Technologies Corporation

CLIRNASDAQ · Industrial Instruments for Measurement, Display, and Control
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Fundamentals

Oldest to newest
Revenue, by quarter
$1.9MSep ’24$590,000Dec ’24$401,000Mar ’25$133,000Jun ’25$1.0MSep ’25$3.7MDec ’25$191,000Mar ’26$560,000Jun ’26
Net income, by quarter
−$1.2MSep ’24−$1.2MDec ’24−$2.1MMar ’25−$1.7MJun ’25−$1.4MSep ’25−$311,000Dec ’25−$2.2MMar ’26−$1.3MJun ’26
Fiscal years, by the month each ended
LineDec 2021Dec 2022Dec 2023Dec 2024Dec 2025
Revenue$607,000$374,000$2.4M$3.6M$5.2M
Gross profit−$452,000$116,000$817,000$1.1M$1.4M
Operating income−$8.1M−$6.1M−$6.0M−$6.5M−$6.7M
Net income−$7.9M−$5.8M−$5.2M−$5.3M−$5.5M
Operating cash flow−$6.7M−$5.0M−$3.2M−$4.4M−$4.7M
Free cash flow−$6.8M−$5.0Mnone on file−$4.4M−$4.7M
Cash$7.6M$6.5M$5.7M$14.0M$9.2M
Shares outstanding31.6M38.0M38.7M5.0M5.3M