Jonathan Lewis, CEO at ZIOPHARM ONCOLOGY INC (ZIOP), bought 2,000 shares at $4.95 ($10K) on 2007-03-12, disclosed to the SEC on 2007-03-14.
Open-market purchase of $10k ZIOP by CEO. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.