    <SEC-DOCUMENT>0000937556-16-000251-index.html : 20160316
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    <ACCEPTANCE-DATETIME>20160316170107
    ACCESSION NUMBER:		0000937556-16-000251
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		15
    CONFORMED PERIOD OF REPORT:	20160102
    FILED AS OF DATE:		20160316
    DATE AS OF CHANGE:		20160316
    EFFECTIVENESS DATE:		20160316

    FILER:

    	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:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-33642
    		FILM NUMBER:		161510365

    	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>
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    <SEQUENCE>1
    <FILENAME>masi-20160316xdef14a.htm
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    Document 1 - file: masi-20160316xdef14a.htm

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    Document 2 - file: annualmtginfo.jpg

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    Document 3 - file: barcodex2.jpg

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    Document 4 - file: barcodex5.jpg

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    Document 5 - file: coverimagex1.jpg

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    Document 6 - file: masi-201504_chartx46020a01.jpg

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    Document 8 - file: masi-201603_chartx33902.jpg

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    Document 9 - file: masimologo300x1.jpg

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    Document 10 - file: masimologoblkwhtx3.jpg

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    Document 12 - file: qrcodemasimox2.jpg

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    Document 13 - file: signaturex2.jpg

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    Document 14 - file: signaturex4.jpg

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    <SEQUENCE>15
    <FILENAME>toplogowhtx1.jpg
    <TEXT>
    Document 15 - file: toplogowhtx1.jpg

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