Benzinga's Top #PreMarket Losers

Walgreen Co WAG fell 2.35% to $72.00 in pre-market trading after the company reported weaker-than-expected fiscal third-quarter earnings. Shire plc SHPG shares declined 2.04% to $222.76 in pre-market trading following New York Times' DealBook headline that the company has hired Goldman Sachs as an advisor. BlackBerry BBRY dipped 1.48% to $9.97 in pre-market trading after gaining 3.16% on Monday. Dean Foods Company DF dropped 0.91% to $17.39 in pre-market trading after Dow Jones reported that the company has received Federal subpoena regarding trades involving Carl Icahn, William Walters, Phil Mickeloson.