<SEC-DOCUMENT>0000914121-22-004100-index.html : 20220927
<SEC-HEADER>0000914121-22-004100.hdr.sgml : 20220927
<ACCEPTANCE-DATETIME>20220927163321
ACCESSION NUMBER:		0000914121-22-004100
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20220927
DATE AS OF CHANGE:		20220927
GROUP MEMBERS:		POLITAN CAPITAL MANAGEMENT GP LLC
GROUP MEMBERS:		POLITAN CAPITAL PARTNERS GP LLC
GROUP MEMBERS:		QUENTIN KOFFEY

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:			0101

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83497
		FILM NUMBER:		221271527

	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:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O SCHULTE ROTH & ZABEL LLP
		STREET 2:		919 THIRD AVENUE, SUITE 2300
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		(212) 756-2000

	MAIL ADDRESS:	
		STREET 1:		C/O SCHULTE ROTH & ZABEL LLP
		STREET 2:		919 THIRD AVENUE, SUITE 2300
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>po58226656-sc13da1.htm
<DESCRIPTION>SCHEDULE 13D (AMENDMENT NO. 1)
<TEXT>
Document 1 - file: po58226656-sc13da1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>2
<FILENAME>po58226656-ex99_3.htm
<DESCRIPTION>TRADING DATA
<TEXT>
Document 2 - file: po58226656-ex99_3.htm

</DOCUMENT>
</SEC-DOCUMENT>