Benzinga's Top #PreMarket Gainers

b>Aratana Therapeutics, Inc. PETX jumped 37.87% to $18.02 after the company announced positive top-line results from AT-001 pivotal field study. Cerus Corporation CERS shares rose 14.77% to $7.07 after the company announced that the U.S. FDA has approved the INTERCEPT Blood System for platelets. Pier 1 Imports, Inc. PIR shares climbed 11.51% to $15.50 after the company reported quarterly results. Xerox Corporation XRX rose 1.15% to $14.05 after the company announced its plans to sell its Information Technology Outsourcing business to Atos for $1.05 billion