Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga February 04, 2015 at 08:16 AM EST Myriad Genetics Inc. (NASDAQ: MYGN) shares declined 16.92% to $31.67 in pre-market trading after the company cut its full-year outlook ... Read More >> Related Stocks: Gilead Sciences Myriad Genetics Inc Wynn Resorts