Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga April 13, 2015 at 08:12 AM EDT Arrowhead Research Corp. (NASDAQ: ARWR) shares gained 13.65% to $8.99 in the pre-market trading session after the company reported ... Read More >> Related Stocks: Clovis Oncology Inc Habit Rest Netflix Qualcomm, Inc.