Donald William Nicholson, Director at Generation Bio Co. (GBIO), bought 100,000 shares at $1.44 ($144K) on 2023-12-01, disclosed to the SEC on 2023-12-05.
Open-market purchase of $144k GBIO 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 B.
Clearly above the average filing.
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