Benzinga's Top Pre-Market NASDAQ Gainers (VTAL, INSP, FTNT, NEI)

Vital Images Inc VTAL added 31.88% to $18.70 in the pre-market session. Toshiba Medical Systems Co announced its plans to purchase VTAL for $273 million in cash. InfoSpace Inc INSP moved up 17.31% to $10.30 in the pre-market session. INSP reported upbeat Q1 results. Fortinet Inc FTNT rose 6.64% to $44.50 in the pre-market session. FTNT reported better-than-expected Q1 earnings. Network Engines Inc NEI soared 3.26% to $2.22 in the pre-market trading. NEI had no debt in the recent quarter. Read more from Benzinga's Markets.