Benzinga's Top #PreMarket Gainers

shares rose 736.23 percent to $17.31 in pre-market trading following huge 1.2 million share purchase by Martin Shkreli.

shares climbed 71.17 percent to $1.90 in pre-market trading following announcement of merger with Eiger BioPharmaceuticals.

shares surged 18.52 percent to $48.00 in pre-market trading after the company reported upbeat results for its fiscal fourth quarter and lifted its dividend.

shares rose 13.60 percent to $108.00 in pre-market trading. Ctrip reported Q3 earnings of $0.30 per share on revenue of $528.001 million.

gained 13.03 percent to $8.50 in pre-market trading after the company reported that it has received the FDA guidance and announced the upcoming launch of VTL-308 Phase 3 trial.