<SEC-DOCUMENT>0001104659-25-073795-index.html : 20250804
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<ACCEPTANCE-DATETIME>20250804205231
ACCESSION NUMBER:		0001104659-25-073795
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250731
FILED AS OF DATE:		20250804
DATE AS OF CHANGE:		20250804

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Williamson Susan Ann
		CENTRAL INDEX KEY:			0002076829
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35803
		FILM NUMBER:		251182461

	MAIL ADDRESS:	
		STREET 1:		676 MCDONNELL BLVD.
		CITY:			HAZELWOOD
		STATE:			MO
		ZIP:			63042

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mallinckrodt plc
		CENTRAL INDEX KEY:			0001567892
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				981088325
		STATE OF INCORPORATION:			L2
		FISCAL YEAR END:			1226

	BUSINESS ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		COLLEGE BUSINESS & TECHNOLOGY PARK
		STREET 2:		CRUISERATH, BLANCHARDSTOWN
		CITY:			DUBLIN 15
		PROVINCE COUNTRY:   	L2
		ZIP:			D15
		BUSINESS PHONE:		353 1 6960000

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		COLLEGE BUSINESS & TECHNOLOGY PARK
		STREET 2:		CRUISERATH, BLANCHARDSTOWN
		CITY:			DUBLIN 15
		PROVINCE COUNTRY:   	L2
		ZIP:			D15
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm2522414-26_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm2522414-26_4seq1.html

Document 1 - RAW XML: tm2522414-26_4seq1.xml

</DOCUMENT>
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