Grant E. Blouse, Chief Scientific Officer at CATALYST BIOSCIENCES, INC. (CBIO), bought 1,163 shares at $3.62 ($4K) on 2021-08-09, disclosed to the SEC on 2021-08-11.
Open-market purchase of $4k CBIO by Chief Scientific Officer. 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.
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