CAMBRIDGE, Mass., June 13, 2012 (GLOBE NEWSWIRE) -- Merrimack Pharmaceuticals, Inc. (Nasdaq:MACK), a biopharmaceutical company with a pipeline of eight oncology therapeutics and multiple diagnostics, announced today that posters on two of their oncology candidates will be presented at the 2012 American Association for Cancer Research (AACR) Conference “Pancreatic Cancer: Progress and Challenges,” being held June 18 – 21, 2012, in Lake Tahoe, NV.