Veronica Cai, Controller at CATALYST BIOSCIENCES, INC. (CBIO), bought 2,000 shares at $4.11 ($8K) on 2020-03-13, disclosed to the SEC on 2020-03-13.
Open-market purchase of $8k CBIO by Controller. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Something here stands out, but not much.