Jonathan Lewis, CEO at ZIOPHARM ONCOLOGY INC (ZIOP), bought 3,000 shares at $3.00 ($9K) on 2007-12-07, disclosed to the SEC on 2007-12-10.
Open-market purchase of $9k ZIOP by CEO. 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.