Benzinga's Top #PreMarket Gainers

Akebia Therapeutics

shares gained 19.51% to $20.15 in the pre-market. Credit Suisse initiated coverage on the stock with a Outperform rating and a $25.00 price target. Edwards Lifesciences

shares gained 12.37% to $82.00 in the pre-market trading session following court ruling preventing Medtronic

from selling CoreValve System in the US. JA Solar Holdings Co

surged 4.08% to $9.70 in pre-market trading after the company reported positive preliminary Q1 results. Boston Scientific

shares jumped 2.44% to $13.00 in pre-market trading. Bank of America upgraded Boston Scientific from Neutral to Buy and lifted the price target from $15.00 to $16.00.