<SEC-DOCUMENT>0001104659-23-062719-index.html : 20230519
<SEC-HEADER>0001104659-23-062719.hdr.sgml : 20230519
<ACCEPTANCE-DATETIME>20230519163856
ACCESSION NUMBER:		0001104659-23-062719
CONFORMED SUBMISSION TYPE:	DFAN14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20230519
DATE AS OF CHANGE:		20230519

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASIMO CORP
		CENTRAL INDEX KEY:			0000937556
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
		IRS NUMBER:				330368882
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DFAN14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33642
		FILM NUMBER:		23940881

	BUSINESS ADDRESS:	
		STREET 1:		52 DISCOVERY
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618
		BUSINESS PHONE:		949-297-7000

	MAIL ADDRESS:	
		STREET 1:		52 DISCOVERY
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Politan Capital Management LP
		CENTRAL INDEX KEY:			0001885245
		IRS NUMBER:				871666292
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DFAN14A

	BUSINESS ADDRESS:	
		STREET 1:		106 WEST 56TH STREET
		STREET 2:		10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		(212) 756-2000

	MAIL ADDRESS:	
		STREET 1:		106 WEST 56TH STREET
		STREET 2:		10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
</SEC-HEADER>
<DOCUMENT>
<TYPE>DFAN14A
<SEQUENCE>1
<FILENAME>tm2316371d1_dfan14a.htm
<DESCRIPTION>DFAN14A
<TEXT>
Document 1 - file: tm2316371d1_dfan14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>tm2316371d1_dfan14aimg01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: tm2316371d1_dfan14aimg01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2316371d1_dfan14aimg02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2316371d1_dfan14aimg02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2316371d1_dfan14aimg03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2316371d1_dfan14aimg03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>tm2316371d1_dfan14aimg04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: tm2316371d1_dfan14aimg04.jpg

</DOCUMENT>
</SEC-DOCUMENT>