WallStSmart
CLIR

ClearSign Combustion Corporation

NASDAQ: CLIR · INDUSTRIALS · POLLUTION & TREATMENT CONTROLS

$5.00
-6.89% today

Updated 2026-04-30

Market cap
$27.04M
P/E ratio
P/S ratio
5.17x
EPS (TTM)
$-0.10
Dividend yield
52W range
$3 – $11
Volume
0.1M

ClearSign Combustion Corporation (CLIR) Financial statements

SEC filings — annual and quarterly data.

Cash flow — annual

Item20092010201120122013201420152016201720182019202020212022202320242025
Operating cash flow$-293013.00$-129966.00$-1.69M$-3.19M$-4.30M$-5.47M$-6.26M$-8.67M$-8.26M$-8.38M$-6.90M$-5.96M$-6.71M$-4.99M$-3.23M$-4.37M$-4.74M
Capital expenditures$19932.00$0.00$217723.00$868000.00$1.08M$1.25M$1.16M$1.05M$421000.00$502000.00$418000.00$194000.00$213000.00$164000.00$200000.00$218000.00$101000.00
Depreciation
Stock-based comp$187096.00$310000.00$146000.00$365000.00$797000.00$645000.00$369000.00$224000.00$685000.00$800000.00$680000.00$373000.00$624000.00$528000.00$893000.00
Free cash flow$-312945.00$-129966.00$-1.91M$-4.06M$-5.38M$-6.72M$-7.42M$-9.73M$-8.68M$-8.89M$-7.32M$-6.16M$-6.92M$-5.16M$-3.43M$-4.59M$-4.84M
Investing cash flow
Financing cash flow
Dividends paid$0.00$0.00$0.00$0.00$0.00$0.00
Share repurchases
Debt repayment
Net change in cash$-5.34M$-843000.00$9.14M$-9.73M$-12000.00$7.70M$-397000.00$272000.00