Lon E. Bell, Director at CLEARSIGN COMBUSTION CORP (CLIR), bought 50,000 shares at $4.00 ($200K) on 2012-04-25, disclosed to the SEC on 2012-04-27.
Open-market purchase of $200k CLIR by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
| Filing → |
| IPWR | BUY | 2020-03-27 | $5K | — | Filing → |
| IPWR | BUY | 2020-03-20 | $6K | — | Filing → |
| IPWR | BUY | 2019-11-14 | $1.0M | — | Filing → |