GSUM - ICPT ORPN and NAVI among premarket gainers February, 19 2019 09:24 AM Gridsum Holding Inc. Bioblast Pharma (NASDAQ:ORPN) +36% on announcing sale of Trehalose clinical development programs to Seelos Therapeutics. More news on: Bio Blast Pharma, Sky Solar Holdings, Intercept Pharmaceuticals, Stocks on the move, Read more ...