Brian Anderson, Director at POLYMEDIX, INC (PYMX.OB), bought 10,000 shares at $0.65 ($7K) on 2011-05-31, disclosed to the SEC on 2011-06-01.
Open-market purchase of $6k PYMX.OB 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.