Benzinga's Top #PreMarket Gainers

EMCORE

shares climbed 46.15% to $6.27 in pre-market trading after the company announced sale of Space PV to Veritas Capital for $150 million in cash. VIVUS

shares surged 13.40% to $4.40 after VIVUS and Auxilium

announced the FDA approval Oof STENDRA sNDA. Tokai Pharmaceuticals

jumped 10.48% to $26.25 in pre-market trading after rising 58.40% on Wednesday. The company priced its initial public offering of 6,480,000 shares at a public offering price of $15.00 per share. Herman Miller

gained 3.66% to $32.00 in pre-market trading after the company reported upbeat fiscal first-quarter revenue and issued a strong forecast. United Natural Foods

shares surged 2.97% to $65.50 in pre-market trading after the company reported better-than-expected fiscal fourth-quarter results and issued a strong fiscal 2015 outlook.