Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga July 22, 2015 at 08:19 AM EDT Thoratec Corporation (NASDAQ: THOR) shares rose 9.01 percent to $62.77 in pre-market trading after the company agreed to be acquired ... Read More >> Related Stocks: Baozun Inc ADR Boeing Co Coca-Cola Company St. Jude Medical Whirlpool Corp