Joseph Colannino, CHIEF TECHNOLOGY OFFICER at CLEARSIGN COMBUSTION CORP (CLIR), bought 14,550 shares at $4.00 ($58K) on 2012-04-25, disclosed to the SEC on 2012-04-26.
Open-market purchase of $58k 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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