PRTO - 1.30 Pre-market now at 1.95/2.00 Proteon Therapeutics Surges 58% Pre-Bell After FDA Designates Vonapanitase as 'Breakthrough Therapy' For Hemodialysis http://stockcharts.com/c-sc/sc?s=PRTO&p=D&b=5&g=0&i=t64177217699&r=1494419166296 http://stockcharts.com/c-sc/sc?s=PRTO&p=W&b=5&g=0&i=t06968009749&r=1494419145753