Benzinga's Top #PreMarket Gainers

Synaptics

jumped 17.34% to $79.10 in pre-market trading after the company announced its plans to acquire display-chip company Renesas SP Drivers. The company also lifted its Q4 revenue forecast. ULTA Salon, Cosmetics & Fragrance

shares gained 9.60% to $93.50 in pre-market trading after the company reported stronger-than-expected first-quarter results. Rambus

shares jumped 8.89% to $13.35 in pre-market trading after the company raised its Q2 sales forecast. Prospect Capital

soared 5.30% to $10.34 in the pre-market trading after the company announced no restatement of historical financial statements.