Benzinga's Top Pre-Market Gainers

McKesson Corporation MCK soared 4.32% to $91.70 in the pre-market trading. MCK won a two-year Department of Veterans Affairs drug contract to continue as the VA's prime pharmaceutical supplier. Star Scientific Inc CIGX surged 3.24% to $3.19 in the pre-market session. CIGX named Ms. Talhia T. Tuck as the company's new Vice President for Communications and Investor Relations. Sears Holdings Corporation SHLD added 2.98% to $60.41 in the pre-market session. SHLD's trailing-twelve-month revenue is $41.57 billion. Tractor Supply Corp TSCO moved up 2.93% to $95 in the pre-market session. Tractor Supply issued upbeat earnings forecast for the first quarter.