Isaac Stein, Director at MAXYGEN INC (MAXY), bought 20,000 shares at $5.16 ($103K) on 2011-05-19, disclosed to the SEC on 2011-05-20.
Open-market purchase of $103k MAXY by Director. 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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