CLIR insider trading
NasdaqCM IndustrialsClearSign Technologies Corp: insider trade history from SEC Form 4 filings.
About ClearSign Technologies Corp
ClearSign Technologies Corporation designs and develops products and technologies for the purpose of decarbonization and improving key performance characteristics of industrial and commercial systems in the United States, the People's Republic of China, and Hong Kong. The company's technologies include ClearSign core burner technology consists of an industrial burner body and a downstream porous ceramic or metal flame stabilizing structure; ClearSign core process burner technology that provides a direct burner replacement for traditional refinery process heaters; ClearSign core boiler burner technology; ClearSign core flaring burners that can be used individually, or in combination, to provide a flare product with extremely low nitrogen oxide emissions; and ClearSign eye flame sensor, an electrical flame sensor for industrial applications. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. ClearSign Technologies Corporation was formerly known as ClearSign Combustion Corporation and changed its name to ClearSign Technologies Corporation in November 2019. The company was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.
Company website: www.clearsign.com
CLIR insider activity at a glance
FilingIQ tracks 142 insider transactions for CLIR in filings since Feb 9, 2015. The most recent transaction is dated Jul 22, 2026.
Across the full history, 34 open-market purchases
and 13 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on CLIR insider trades is 49.3/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest CLIR Form 4 filings
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Frequently asked
- How many insider trades does FilingIQ track for CLIR?
- FilingIQ tracks 142 Form 4 insider transactions for CLIR (ClearSign Technologies Corp), covering filings from Feb 9, 2015 onwards. 1 of those are dated within the last 90 days.
- Are CLIR insiders net buyers or net sellers?
- Across the full Form 4 history for CLIR, 34 transactions (24%) were open-market purchases and 13 (9%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does CLIR insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
- What sector is CLIR in?
- ClearSign Technologies Corp (CLIR) is classified in the Industrials sector, specifically Pollution & Treatment Controls, with a current market capitalisation of $31.42M.
Methodology & sources
Every CLIR insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.