Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga January 21, 2015 at 08:23 AM EST Arena Pharmaceuticals, Inc. (NASDAQ: ARNA) shares dropped 6.81% to $4.93 in pre-market trading on announcement of public offering of ... Read More >> Related Stocks: International Business Machines Qualcomm, Inc. Tesla, Inc.