News Release
                    
                Mallinckrodt to Present at J.P. Morgan Healthcare Conference January 12
                    DUBLIN--(BUSINESS WIRE)--Dec. 22, 2014--
      Mallinckrodt
      plc (NYSE: MNK), a global specialty biopharmaceutical company, will
      present at the 33rd Annual J.P. Morgan Healthcare Conference
      at the Westin St. Francis on Union Square in San Francisco on Monday,
      January 12, 2015. Mark Trudeau, President and Chief Executive Officer of
      Mallinckrodt, will represent the company in a session scheduled to begin
      at 3 p.m. Pacific/6 p.m. Eastern.
    
      Individuals who cannot attend the meeting in person can find webcast
      information on Mallinckrodt’s Investor
      Relations website or at: http://mallinckrodt.com/investor_relations.
      A replay will also be available following the meeting.
    
      ABOUT MALLINCKRODT
    
      Mallinckrodt is a global specialty biopharmaceutical and medical imaging
      business that develops, manufactures, markets and distributes specialty
      pharmaceutical products and medical imaging agents. Areas of focus
      include therapeutic drugs for autoimmune and rare disease specialty
      areas like neurology, rheumatology, nephrology and pulmonology along
      with analgesics and central nervous system drugs for prescribing by
      office- and hospital-based physicians. The company's core strengths
      include the acquisition and management of highly regulated raw
      materials; deep regulatory expertise; and specialized chemistry,
      formulation and manufacturing capabilities. The company's Specialty
      Pharmaceuticals segment includes branded and specialty generic drugs and
      active pharmaceutical ingredients, and the Global Medical Imaging
      segment includes contrast media and nuclear imaging agents. Mallinckrodt
      has more than 5,500 employees worldwide and a commercial presence in
      roughly 65 countries. The company's fiscal 2014 revenue totaled $2.54
      billion. To learn more about Mallinckrodt, visit www.mallinckrodt.com.
    

Source: Mallinckrodt
      Mallinckrodt
Rhonda Sciarra, 314-654-8618
Manager,
      Communications
rhonda.sciarra@mallinckrodt.com
or
Meredith
      Fischer, 314-654-3318
Senior Vice President, Communications
meredith.fischer@mallinckrodt.com
or
John
      Moten, 314-654-6650
Vice President, Investor Relations
john.moten@mallinckrodt.com