Benzinga's Top #PreMarket Gainers

Supertex SUPX surged 35.15% to $32.95 in the pre-market session after the company agreed to be acquired by Microchip Technology MCHP for $33 per share in cash. AutoNavi Holdings AMAP soared 28.72% to $21.29 in the pre-market trading on Alibaba $21.00 per ADS offer. Plug Power PLUG shares jumped 16.77% to $3.62 in pre-market trading on multi-site GenKey contract. Yelp YELP shares gained 8.49% to $97.00 in the pre-market on reported search deal with Yahoo! YHOO.