Benzinga's Top #PreMarket Gainers

ChemoCentryx CCXI shares surged 104.90% to $9.20 in pre-market trading as primary endpoint achieved in Phase II CCX140 trial. Adobe Systems ADBE shares jumped 7.47% to $74.95 in pre-market trading after the company posted better-than-expected fourth-quarter results and announced its plans to acquire privately-held Fotolia for around $800 million in cash. Caesars Entertainment CZR shares rose 5.05% to $15.61 in pre-market trading. Dow Jones reported that Caesars has reached a tentative debt-restructuring agreement for largest unit with senior bondholders, according to sources. GoPro GPRO shares gained 2.75% to $61.70 in the pre-market trading session after JP Morgan upgraded the stock from Neutral to Overweight.