| New York Headquarters | Mr. Alexander E. Parker |
1185 Avenue of the Americas, Floor 3 | Senior Managing Director |
| New York, N.Y. 10036 | E. alexander.parker@buxtonhelmsley.com |
| T. +1 (212) 951-1530 | |
| F. +1 (212) 641-4349 |
VIA U.S. REGISTERED POSTAL MAIL & ELECTRONIC MAIL
corporate.secretary@mnk.com; board.directors@mnk.com; stephanie.miller@mallinckrodt.com;
joann.reed@mallinckrodt.com; carlos.paya@mallinckrodt.com; angus.russell@mallinckrodt.com;
martin.carroll@mallinckrodt.com; paul.carter@mallinckrodt.com; david.norton@mallinckrodt.com;
anne.whitaker@mallinckrodt.com; kneeland.youngblood@mallinckrodt.com; david.carlucci@mallinckrodt.com;
info@odce.ie; marian_lynch@odce.ie; xana_mccarthy@odce.ie; suzanne_gunne@odce.ie; ian_drennan@odce.ie;
January 31, 2022
| Former Directors - All Members | Ms. Joann Reed, Interim Director |
| Mallinckrodt Plc. | Mr. Carlos V. Paya, M.D., Ph. D., Interim Director |
| 53 Frontage Road, Shelbourne Building | Mr. Angus Russell, Former Chairman |
| Hampton, N.J. 08827 | Mr. J. Martin Carroll, Former Director |
| Mr. Paul R. Carter, Former Director | |
| Mr. David Norton, Former Director | |
| Ms. Anne C. Whitaker, Former Director | |
| Mr. Mark Trudeau, Former Director | |
| Mr. Kneeland Youngblood, Former Director |
Re: Updated Notice of The Buxton Helmsley Group, Inc.'s Significant Interest in the Ordinary Shares of Mallinckrodt Plc. (the "Company")
Ladies and Gentlemen of the Dismissed Board (the "Dismissed Board"):
Please take notice that The Buxton Helmsley Group, Inc. ("BHG") now retains an interest in over 4% of the outstanding ordinary shares of the Company, as of today, January 31, 2022. Please take further notice that, as of today, January 31, 2022, BHG collectively retains power-of-attorney related to over 10% of the Company's outstanding ordinary shares, between those shares held in the institutional accounts of BHG and the other non-affiliate shareholders listed within BHG's 13d filings, as evidenced by the Joint Filing Agreement included within each of BHG's 13d filings with the U.S. Securities and Exchange Commission (the "Commission").
An updated count of the Company's ordinary shares held within BHG's institutional accounts may be found within the 13d filing with the Commission made contemporaneous to this correspondence being caused to be sent. BHG looks forward to providing a full response to the Company's January 14, 2022, request for a report of ownership from BHG, pursuant to the Companies Act of 2014, § 1062. As noted within BHG's January 15, 2022, correspondence addressed to Ms. Miller, we will provide that full response by 11:59pm GMT on Friday, February 4, 2022.
Very Truly Yours,
Alexander Parker
Senior Managing Director
The Buxton Helmsley Group, Inc.
| CC (by e-mail and post): | Office of the Director of Corporate Enforcement | Ms. Marian Lynch |
| 16 Parnell Square | Ms. Xana McCarthy, Investigator | |
| Dublin 1 | Ms. Suzanne Gunne, Enforcement Lawyer | |
| D01 W5C2 | Mr. Ian Drennan, Director | |
| Ireland |
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