James Anthony Cannon, Director at ZIOPHARM ONCOLOGY INC (ZIOP), bought 175,000 shares at $3.10 ($543K) on 2009-12-09, disclosed to the SEC on 2009-12-11.
Open-market purchase of $542k ZIOP by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Something here stands out, but not much.