<SEC-DOCUMENT>0001104659-23-063405-index.html : 20230523
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<ACCEPTANCE-DATETIME>20230523073019
ACCESSION NUMBER:		0001104659-23-063405
CONFORMED SUBMISSION TYPE:	DFAN14A
PUBLIC DOCUMENT COUNT:		15
FILED AS OF DATE:		20230523
DATE AS OF CHANGE:		20230523

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:		23946518

	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>
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<TYPE>DFAN14A
<SEQUENCE>1
<FILENAME>tm2316501d1_dfan14a.htm
<DESCRIPTION>DFAN14A
<TEXT>
Document 1 - file: tm2316501d1_dfan14a.htm

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<DOCUMENT>
<TYPE>EX-1
<SEQUENCE>2
<FILENAME>tm2316501d1_ex1.htm
<DESCRIPTION>EXHIBIT 1
<TEXT>
Document 2 - file: tm2316501d1_ex1.htm

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<SEQUENCE>3
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Document 3 - file: tm2316501d1_dfan14aimg01.jpg

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<SEQUENCE>4
<FILENAME>tm2316501d1_dfan14aimg02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2316501d1_dfan14aimg02.jpg

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<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>tm2316501d1_dfan14aimg04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: tm2316501d1_dfan14aimg04.jpg

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<SEQUENCE>6
<FILENAME>tm2316501d1_dfan14aimg05.jpg
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<TEXT>
Document 6 - file: tm2316501d1_dfan14aimg05.jpg

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<FILENAME>tm2316501d1_dfan14aimg06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: tm2316501d1_dfan14aimg06.jpg

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<SEQUENCE>8
<FILENAME>tm2316501d1_ex1img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: tm2316501d1_ex1img001.jpg

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<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>tm2316501d1_ex1img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: tm2316501d1_ex1img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>tm2316501d1_ex1img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: tm2316501d1_ex1img003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>tm2316501d1_ex1img004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: tm2316501d1_ex1img004.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>tm2316501d1_ex1img005.jpg
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<TEXT>
Document 12 - file: tm2316501d1_ex1img005.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>tm2316501d1_ex1img006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: tm2316501d1_ex1img006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>tm2316501d1_ex1img007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: tm2316501d1_ex1img007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>tm2316501d1_ex1img008.jpg
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<TEXT>
Document 15 - file: tm2316501d1_ex1img008.jpg

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