Benzinga's Top #PreMarket Gainers

Pixelworks

soared 37.50% to $6.60 in the pre-market trading as the company reported that sales to Apple represented more than 10% of revenue in 2013. Energy Recovery

shares gained 24.21% to $5.90 in the pre-market after the company reported upbeat Q4 results. Sangamo Biosciences

surged 19.84% to $23.50 in the pre-market session as the company announced that first-in-man study of genome editing using Sangamo's ZFN technology published In NEJM. Rigel Pharmaceuticals

shares jumped 7.56% to $4.41 in pre-market trading after the company announced the publication of R118 AMPK activator research.