Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga December 12, 2014 at 08:07 AM EST ChemoCentryx (NASDAQ: CCXI) shares surged 104.90% to $9.20 in pre-market trading as primary endpoint achieved in Phase II CCX140 trial. ... Read More >> Related Stocks: Adobe Systems Caesars Entertainment Inc Chemocentryx Inc Gopro Inc Cl A