Michelle LeRoux Williams, Chief Scientific Officer at OSIRIS THERAPEUTICS, INC. (OSIR), bought 520 shares at $0.40 ($208) on 2012-12-11, disclosed to the SEC on 2012-12-11.
Open-market purchase of $208 OSIR by Chief Scientific Officer. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.
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