Merrimack Pharmaceuticals to Present at the Bank of America Merrill Lynch 2012 Health Care Conference

CAMBRIDGE, Mass., May 10, 2012 (GLOBE NEWSWIRE) -- Merrimack Pharmaceuticals, Inc. (Nasdaq:MACK) today announced that Robert Mulroy, President and Chief Executive Officer, is scheduled to present at the Bank of America Merrill Lynch 2012 Health Care Conference on Wednesday, May 16, 2012 at 8:00 a.m. (PDT) at the Encore at the Wynn Hotel in Las Vegas, Nevada.

A live webcast of Merrimack's presentation can be accessed by visiting the investor relations section of the company's website at investors.merrimackpharma.com. A replay of the webcast will be archived on Merrimack's website for two weeks following the presentation.

About Merrimack

Merrimack is a biopharmaceutical company discovering, developing and preparing to commercialize innovative medicines paired with companion diagnostics for the treatment of serious diseases, with an initial focus on cancer. Merrimack applies Network Biology, its proprietary systems biology-based approach to biomedical research, throughout the research and development process. Merrimack currently has five targeted therapeutic oncology candidates in clinical development.

CONTACT: Investor & Media Contact:

         Kathleen Petrozzelli Gallagher

         Corporate Communications, Merrimack

         617-441-1043

         kgallagher@merrimackpharma.com



         Media Contact:

         Betsy StevensonRaymondStevenson Healthcare Communications

         860-984-1424

         betsy@raymondstevenson.com

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