Donald P. Braun, Director at Celsion CORP (CLSN), bought 5,000 shares at $1.07 ($5K) on 2021-05-17, disclosed to the SEC on 2021-05-20.
Open-market purchase of $5k CLSN by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Clearly above the average filing.