Joseph Colannino, CHIEF TECHNOLOGY OFFICER at CLEARSIGN COMBUSTION CORP (CLIR), bought 925 shares at $5.15 ($5K) on 2012-11-29, disclosed to the SEC on 2012-12-03.
Open-market purchase of $5k CLIR by CHIEF TECHNOLOGY OFFICER. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
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