ClearSign Technologies Corp (CLIR) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-07-02

ClearSign Technologies Corp (CLIR) has filed 5 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 6 Form 8-K material event filings were reported by CLIR in the last 90 days. InsiderAlpha tracks every CLIR SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About ClearSign Technologies Corp (CLIR)

SIC classificationIndustrial Instruments For Measurement, Display, and Control (SIC 3823)
SEC CIK0001434524

90-Day SEC Filing Activity

Form 4 filings (90d)5
Form 8-K filings (90d)6
Latest Form 4 filing2026-07-02

Recent CLIR Insider Transactions (Form 4)

DateInsiderRoleTransactionSharesPriceValueFiling
Silva Gil ToddDirectorP — Open-market purchase1.0K$5.25$5KSEC
Silva Gil ToddDirectorP — Open-market purchase1.0K$5.32$5KSEC
Silva Gil ToddDirectorP — Open-market purchase2.0K$4.20$8KSEC
Silva Gil ToddDirectorP — Open-market purchase2.0K$4.36$9KSEC
Deller Colin JamesChief Executive OfficerA — Grant or award7.0K$5.62$39KSEC
Hinds BrentChief Financial OfficerF — Tax withholding / forfeiture20.8K$0.56$12KSEC
Hinds BrentChief Financial OfficerA — Grant or award56.6K$0.00SEC
Deller Colin JamesChief Executive OfficerF — Tax withholding / forfeiture3.5K$5.62$20KSEC
Deller Colin JamesChief Executive OfficerA — Grant or award210.0K$0.00SEC
Deller Colin JamesChief Executive OfficerF — Tax withholding / forfeiture105.0K$0.56$59KSEC
Hinds BrentChief Financial OfficerF — Tax withholding / forfeiture2.8K$0.59$2KSEC
Hinds BrentChief Financial OfficerM — Option exercise7.5KSEC
Hinds BrentChief Financial OfficerM — Option exercise9.3KSEC
Hinds BrentChief Financial OfficerF — Tax withholding / forfeiture3.4K$0.59$2KSEC
Hinds BrentChief Financial OfficerF — Tax withholding / forfeiture3.7K$0.60$2KSEC

All transactions sourced from SEC EDGAR Form 4 filings for ClearSign Technologies Corp (CLIR). Updated in real time as new filings are submitted to the SEC.

Most-Active CLIR Insiders — Last 90 Days

InsiderForm 4 filingsTotal transaction value
Silva Gil Todd4$11K
Deller Colin James2$59K
DIGIANDOMENICO ANTHONY1
Basenese Lou1

Recent CLIR Form 8-K Material Events

Recent Insider Filings

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CLIR insider filings:

POpen-market purchase by the insider
SOpen-market sale by the insider
AGrant, award, or other acquisition from the issuer
MExercise or conversion of derivative security (e.g. options)
FPayment of exercise price or tax liability via share withholding
GBona-fide gift of securities
DDisposition to the issuer (e.g. share buyback participation)
JOther acquisition or disposition
XExercise of in-the-money or at-the-money derivative security
CConversion of derivative security
VTransaction voluntarily reported earlier than required

CLIR Insider Trading — FAQ

What is the latest insider trade for CLIR?
ClearSign Technologies Corp (CLIR) had 5 insider filings in the last 90 days, with the most recent on 2026-07-02. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying CLIR stock?
0 insider purchases of CLIR were filed in the last 90 days.
How many insiders are selling CLIR stock?
0 insider sales of CLIR were filed in the last 90 days.
Where can I see CLIR SEC filings (Form 4, 10-K, 10-Q, 8-K)?
InsiderAlpha aggregates every CLIR SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Related Companies — Recent Insider Activity

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