Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga June 01, 2015 at 08:16 AM EDT Clovis Oncology Inc (NASDAQ: CLVS) shares dropped 8.59 percent to $84.50 in pre-market after the company reported updated Phase 2 ... Read More >> Related Stocks: Clovis Oncology Inc Express Scripts Holding F5 Networks Vodafone Grp Plc ADR Williams Companies