Benzinga's Top #PreMarket Gainers By: Benzinga via Benzinga September 24, 2014 at 08:05 AM EDT Merrimack Pharmaceuticals (NASDAQ: MACK) shares jumped 25.17% to $9.00 in pre-market trading on licensing deal with Baxter International ... Read More >> Related Stocks: Baxter International Bed Bath & Beyond Lipocine Inc