Benzinga's Top #PreMarket Gainers

shares rose 7.33 percent to $5.71 in pre-market trading after dropping 13.78 percent on Thursday.

shares rose 4.95 percent to $22.25 in pre-market trading after falling 13.47 percent on Thursday.

shares rose 3.57 percent to $10.45 in pre-market trading after dropping 32.55 percent on Thursday. Ardelyx priced 7.5 million share offering at $10.00 per share.

shares rose 2.94 percent to $32.56 in pre-market trading after slipping 0.94 percent on Thursday.

shares rose 2.61 percent to $28.68 after declining 6.08 percent on Thursday.