Benzinga's Top Pre-Market Gainers

Medicis Pharmaceutical MRX) soared 37.67% to $43.45 in the pre-market trading. Valeant Pharmaceuticals International VRX announced its plans to acquire Medicis Pharmaceutical for $2.6 billion in cash. StemCells STEM added 17.51% to $2.55 in the pre-market session. StemCells reported positive interim six-month data from spinal cord injury trial. Questcor Pharmaceuticals QCOR surged 10.66% to $48.07 in the pre-market session. Questcor's PEG ratio is 0.42. Campbell Soup Co CPB moved up 9.22% to $38.38 in the pre-market session. Campbell Soup reported a rise in its Q4 profit.