Form4insider filings, from the source

Company · CIK 0001434524 · SIC 3823 — Industrial Instruments For Measurement, Display, and Control · Nasdaq

ClearSign Technologies Corp · CLIR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $1.8M · 1sales $0 · 0net $1.8M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 22, 2026 PForm 4 →Jul 24, 4:46 pm EDTJohn M Pasquesi10% Owner500,000$3.54$1,770,0001,343,477+59.3%

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jun 30, 2026 AForm 4 →Jul 2, 7:01 pm EDTLou BaseneseDirector4,595——4,595—
Jun 30, 2026 AForm 4 →Jul 2, 7:01 pm EDTGil Todd SilvaDirector8,682——4,595—
Jun 30, 2026 AForm 4 →Jul 2, 7:00 pm EDTAnthony DigiandomenicoDirector4,595——4,595—