Amarin upgraded By: MarketMinute.com Stock News March 12, 2015 at 13:49 PM EDT HC Wainwright upgraded Amarin Corp. (Nasdaq: AMRN) from a Neutral rating to a Buy rating and lifted its price target from $2.50 to $10 sending the stock price soaring 48 cents to $2.42. Related Stocks: Amarin Corp ADR