Mallinckrodt plc - FORM 10-K/A - EX-31.1

file	filename
EX-31.2 - EX-31.2 - Mallinckrodt plc	mnkexhibit3124192021-10xka.htm
10-K/A - 10-K/A - Mallinckrodt plc	mnk-20201225.htm

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO RULE 13A-14(A) OF THE SECURITIES EXCHANGE ACT OF 1934

I, Mark C. Trudeau, certify that:



1.						I have reviewed this annual report on Form 10-K/A of Mallinckrodt plc;

2.						Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


Date: April 19, 2021	By:	/s/ Mark C. Trudeau
	Mark C. Trudeau
	President and Chief Executive Officer and Director (principal executive officer)

Mallinckrodt plc - FORM 10-K/A - EX-31.1 - April 19, 2021