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    <ACCEPTANCE-DATETIME>20240913060628
    ACCESSION NUMBER:		0001213900-24-078276
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		24
    FILED AS OF DATE:		20240913
    DATE AS OF CHANGE:		20240913

    FILER:

    	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
    		IRS NUMBER:				330368882
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1228

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33642
    		FILM NUMBER:		241296386

    	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
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    <FILENAME>ea0214455-defa14a_masimo.htm
    <DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
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    Document 14 - file: image_013.jpg

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    Document 15 - file: image_014.jpg

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    Document 19 - file: image_018.jpg

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