Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga April 09, 2014 at 08:14 AM EDT Intuitive Surgical (NASDAQ: ISRG) dipped 9.07% to $445.40 in the pre-market session after the company issued downbeat revenue forecast ... Read More >> Related Stocks: General Motors Halozyme Therapeutic Intuitive Surgical Radnet Inc