News Release
                    
                Mallinckrodt Pharmaceuticals to Hold Investor Briefing October 14, 2014, in New York
                
      Company to Provide Fiscal Year 2015 Financial Guidance
    
    DUBLIN--(BUSINESS WIRE)--Sep. 2, 2014--
      Mallinckrodt
      plc. (NYSE: MNK), a leading global specialty pharmaceutical company,
      will hold an investor briefing on Tuesday, October 14, 2014, in New York
      City. Mark Trudeau, President and Chief Executive Officer of
      Mallinckrodt, will present along with members of Mallinckrodt’s senior
      management team. The presentation will include announcement of the
      company’s fiscal year 2015 financial guidance.
    
      The briefing will take place from 9 a.m. to 11 a.m. Eastern Time at The
      Plaza, 770 Fifth Ave., New York, NY 10019. Those interested in attending
      should register by contacting investor.relations@mallinckrodt.com.
    
      Individuals unable to attend the briefing in person can view a live
      webcast at Mallinckrodt’s Investor Relations website: http://www.mallinckrodt.com/investor_relations/.
      The briefing is also available live via conference call at
      1-844-867-9755 in the United States and 901-300-3301 outside the United
      States; all callers should use the access code 95905912.
    
      The presentation replay and materials will be available for a seven-day
      period on the Mallinckrodt Investor Relations website following the end
      of the event.
    
      ABOUT MALLINCKRODT:
    
      Mallinckrodt is a global specialty pharmaceutical 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 2013 revenue totaled $2.2
      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