Benzinga's Top #PreMarket Gainers

Retrophin

shares jumped 26.32% to $16.27 in pre-market trading on license agreement with Mission Pharmacal Company to market Thiola and strong outlook. OmniVision Technologies

shares climbed 11.22% to $22.40 in the pre-market trading session after the company reported better-than-expected fourth-quarter results and issued a strong Q1 outlook. Analysts at Northland Securities upgraded OmniVision from Market Perform to Outperform and lifted the target price from $21 to $28. Veeva Systems

soared 4.31% to $22.99 in the pre-market trading after the company reported better-than-expected Q1 results and issued a strong forecast. Salesforce.com

shares gained 1.84% to $55.40 in pre-market trading on news of a stratetgic alliance with Microsoft