Benzinga's Top #PreMarket Gainers

BlackBerry BBRY shares gained 12.06% to $9.29 in pre-market trading after the company reported a narrower-than-expected first-quarter loss. Measurement Specialties MEAS shares gained 10.45% to $86.15 after the company agreed to be acquired by TE Connectivity TEL for $86 cash per share. Ballard Power Systems BLDP shares jumped 7.71% to $4.47 in pre-market trading after reporting a $6 million licensing deal in China. Red Hat RHT shares jumped 4.43% to $55.45 in pre-market trading after the company reported upbeat results for the first quarter and lifted its full-year outlook.