ZIOP - 2.51 Pre-market now at 2.62/2.70 Ziopharm Oncology Announces Immuno-oncology Clinical Supply Agreement with Regeneron to Evaluate Combination Therapy for Patients with Brain Cancer *Ziopharm Oncology Announces $50 Million Private Placement https://c.stockcharts.com/c-sc/sc?s=ZIOP&p=D&b=5&g=0&i=t9903713520c&r=1542028456090