Robert Richardson, Director at APPLIED SIGNAL TECHNOLOGY INC (APSG), bought 600 shares at $19.55 ($12K) on 2009-03-05, disclosed to the SEC on 2009-03-06.
Open-market purchase of $12k APSG 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.