David MacCallum, Director at ZYMOGENETICS INC (ZGEN), bought 10,000 shares at $12.51 ($125K) on 2007-08-03, disclosed to the SEC on 2007-08-07.
Open-market purchase of $125k ZGEN 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.