John Kollins, CEO, Director at Mateon Therapeutics, holds 0.00 shares in Mateon Therapeutics (Ticker: MATN), holds ― shares in Satsuma Pharmaceuticals (Ticker: STSA), holds 4.16K shares in Paratek Pharmaceuticals (Ticker: PRTK). Most recently, John Kollins ― shares of Mateon Therapeutics on ― for an estimated value of ―.