0001104659-23-093624.txt : 20230818 0001104659-23-093624.hdr.sgml : 20230818 20230818212340 ACCESSION NUMBER: 0001104659-23-093624 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230817 FILED AS OF DATE: 20230818 DATE AS OF CHANGE: 20230818 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Welch Stephen Andrew CENTRAL INDEX KEY: 0001944355 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-35803 FILM NUMBER: 231187133 MAIL ADDRESS: STREET 1: 18440 BRIDGEMORE LANE CITY: LOUISVILLE STATE: KY ZIP: 40245 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Mallinckrodt plc CENTRAL INDEX KEY: 0001567892 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 981088325 FISCAL YEAR END: 1229 BUSINESS ADDRESS: STREET 1: COLLEGE BUSINESS & TECHNOLOGY PARK STREET 2: CRUISERATH, BLANCHARDSTOWN CITY: DUBLIN 15 STATE: L2 ZIP: D15 BUSINESS PHONE: 353 1 6960000 MAIL ADDRESS: STREET 1: COLLEGE BUSINESS & TECHNOLOGY PARK STREET 2: CRUISERATH, BLANCHARDSTOWN CITY: DUBLIN 15 STATE: L2 ZIP: D15 4 1 tm2324159-6_4seq1.xml OWNERSHIP DOCUMENT X0508 4 2023-08-17 0 0001567892 Mallinckrodt plc MNK 0001944355 Welch Stephen Andrew 675 MCDONNELL BLVD. HAZELWOOD MO 63042 0 1 0 0 EVP & Head of Spec Generics 0 Ordinary Shares 2023-08-17 4 F 0 5859 0.693 D 32686 D This Form 4 constitutes a notice to the Issuer for purposes of Part V of the Companies Act 2014 /s/ Mark Tyndall, Attorney-in-Fact 2023-08-18