Benzinga's Top #PreMarket Gainers

shares climbed 11.25% to $2.41 in pre-market trading. Ballard Customer has demonstrated world's first hydrogen fuel cell tram.

gained 8.04% to $74.16 in pre-market trading as the company reported that it has received breakthrough therapy designation for Rucaparib for monotherapy treatment of advanced ovarian cancer.

shares rose 7.58% to $6.10 in pre-market trading after gaining 2.72% on Monday.

shares surged 7.26% to $65.00 in pre-market trading after the company reported better-than-expected results for the third quarter and lifted its outlook for its fiscal year.

shares gained 5.17% to $48.20 in the pre-market trading session after the company agreed to be acquired by Permira Advisers LLC and the Canada Pension Plan Investment Board for $48.75 per share.