<SEC-DOCUMENT>0000937556-25-000056-index.html : 20250423
<SEC-HEADER>0000937556-25-000056.hdr.sgml : 20250423
<ACCEPTANCE-DATETIME>20250423214952
ACCESSION NUMBER:		0000937556-25-000056
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250421
FILED AS OF DATE:		20250423
DATE AS OF CHANGE:		20250423

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hellmann Elisabeth A
		CENTRAL INDEX KEY:			0001870256
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33642
		FILM NUMBER:		25863334

	MAIL ADDRESS:	
		STREET 1:		250 CAMPUS DRIVE
		CITY:			MARLBOROUGH
		STATE:			MA
		ZIP:			01752

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MASIMO CORP
		CENTRAL INDEX KEY:			0000937556
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		EIN:				330368882
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wk-form3_1745459386.xml
<DESCRIPTION>FORM 3
<TEXT>
Document 1 - file: wk-form3_1745459386.html

Document 1 - RAW XML: wk-form3_1745459386.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>section16-poaxelizabethhel.htm
<DESCRIPTION>EX-24
<TEXT>
Document 2 - file: section16-poaxelizabethhel.htm

</DOCUMENT>
</SEC-DOCUMENT>