<SEC-DOCUMENT>0001567892-20-000023-index.html : 20200421
<SEC-HEADER>0001567892-20-000023.hdr.sgml : 20200421
<ACCEPTANCE-DATETIME>20200421170635
ACCESSION NUMBER:		0001567892-20-000023
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20200421
DATE AS OF CHANGE:		20200421
EFFECTIVENESS DATE:		20200421

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mallinckrodt plc
		CENTRAL INDEX KEY:			0001567892
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				981088325
		FISCAL YEAR END:			1225

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35803
		FILM NUMBER:		20805885

	BUSINESS ADDRESS:	
		STREET 1:		3 LOTUS PARK, THE CAUSEWAY
		STREET 2:		STAINES-UPON-THAMES
		CITY:			SURREY
		STATE:			X0
		ZIP:			TW18 3AG
		BUSINESS PHONE:		44-017-8463-6700

	MAIL ADDRESS:	
		STREET 1:		3 LOTUS PARK, THE CAUSEWAY
		STREET 2:		STAINES-UPON-THAMES
		CITY:			SURREY
		STATE:			X0
		ZIP:			TW18 3AG
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>mnkproxysupplement042120.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: mnkproxysupplement042120.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>graphic101.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: graphic101.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>graphic11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: graphic11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>graphic21.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: graphic21.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>graphic71.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: graphic71.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>graphic81.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: graphic81.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>graphic91.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: graphic91.jpg

</DOCUMENT>
</SEC-DOCUMENT>