Lon E. Bell, Director at CLEARSIGN COMBUSTION CORP (CLIR), bought 111,000 shares at $2.25 ($250K) on 2018-02-27, disclosed to the SEC on 2018-02-28.
Open-market purchase of $250k CLIR by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
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 → |