<SEC-DOCUMENT>0000914121-23-000147-index.html : 20230313
<SEC-HEADER>0000914121-23-000147.hdr.sgml : 20230313
<ACCEPTANCE-DATETIME>20230313063206
ACCESSION NUMBER:		0000914121-23-000147
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20230313
DATE AS OF CHANGE:		20230313
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:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83497
		FILM NUMBER:		23725631

	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>po58913627-sc13da4.htm
<DESCRIPTION>AMENDMENT NO. 4
<TEXT>
Document 1 - file: po58913627-sc13da4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.5
<SEQUENCE>2
<FILENAME>po58913627-ex99_5.htm
<DESCRIPTION>FORM OF SECOND AMENDED AND SUPPLEMENTED COMPLAINT, FILED AS AN EXHIBIT TO THE MOTION FOR LEAVE TO AMEND WITH THE DELAWARE COURT OF CHANCERY ON MARCH 10, 2023
<TEXT>
Document 2 - file: po58913627-ex99_5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image0.jpg
<TEXT>
Document 3 - file: image0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image1.jpg
<TEXT>
Document 4 - file: image1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image00003.jpg
<TEXT>
Document 5 - file: image00003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>image00005.jpg
<TEXT>
Document 6 - file: image00005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>image00006.jpg
<TEXT>
Document 7 - file: image00006.jpg

</DOCUMENT>
</SEC-DOCUMENT>