Question 1

What is CLIR stock?

Accepted Answer

CLIR is the ticker symbol for ClearSign Technologies Corp, a publicly traded Technology sector company listed on Nasdaq. 13F Pro tracks CLIR with AI-powered analysis, an AI quality score, SEC EDGAR financials, insider transactions, and institutional 13F holdings — all sourced directly from public SEC filings.

Question 2

Is CLIR a good stock to buy?

Accepted Answer

13F Pro's AI ranking engine scores CLIR at 9.6/100, ranked #2,878 of 2,925 stocks on a composite quality score built from its SEC filings, covering profitability, growth, balance sheet strength, and free cash flow. The full AI verdict and bull/bear case for CLIR is available at https://13fpro.ai/company/CLIR. Not investment advice — review the underlying SEC filings before making any trade.

Question 3

Where does 13F Pro source CLIR data?

Accepted Answer

All ClearSign Technologies Corp fundamentals and ownership data come directly from SEC EDGAR. ClearSign Technologies Corp files with the SEC under CIK 1434524. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

Period	Form	Revenue	Net income	Op. marginOperating margin
FY 2025	10-K	$5.2M	$-5.5M	-127.5%
FY 2024	10-K	$3.6M	$-5.3M	-180.4%
FY 2023	10-K	$2.4M	$-5.2M	—
FY 2022	10-K	$374.0K	$-5.8M	—
FY 2021	10-K	$607.0K	$-7.9M	—
FY 2018	10-K	$530.0K	$-9.5M	—

ClearSign Technologies Corp CLIR

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About ClearSign Technologies Corp (CLIR): stock profile, AI score and financials