<SEC-DOCUMENT>0000937556-18-000070-index.html : 20180502
<SEC-HEADER>0000937556-18-000070.hdr.sgml : 20180502
<ACCEPTANCE-DATETIME>20180502160932
ACCESSION NUMBER:		0000937556-18-000070
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		22
CONFORMED PERIOD OF REPORT:	20180502
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
FILED AS OF DATE:		20180502
DATE AS OF CHANGE:		20180502

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33642
		FILM NUMBER:		18799664

	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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<TYPE>8-K
<SEQUENCE>1
<FILENAME>masi-20180502x8k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: masi-20180502x8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>masi-20180502xex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: masi-20180502xex991.htm

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<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>q12018supplementalpresen.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 3 - file: q12018supplementalpresen.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.3
<SEQUENCE>4
<FILENAME>investorrelationsnongaap.htm
<DESCRIPTION>EXHIBIT 99.3
<TEXT>
Document 4 - file: investorrelationsnongaap.htm

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<FILENAME>investorrelationsnongaap001.jpg
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Document 5 - file: investorrelationsnongaap001.jpg

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<FILENAME>masimologo2018.jpg
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Document 6 - file: masimologo2018.jpg

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Document 7 - file: masimologopressreleaseq12018.jpg

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Document 8 - file: q12018supplementalpresen001.jpg

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Document 9 - file: q12018supplementalpresen002.jpg

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Document 10 - file: q12018supplementalpresen003.jpg

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Document 11 - file: q12018supplementalpresen004.jpg

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Document 12 - file: q12018supplementalpresen005.jpg

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Document 13 - file: q12018supplementalpresen006.jpg

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Document 14 - file: q12018supplementalpresen007.jpg

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<FILENAME>q12018supplementalpresen008.jpg
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Document 15 - file: q12018supplementalpresen008.jpg

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<FILENAME>q12018supplementalpresen009.jpg
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Document 16 - file: q12018supplementalpresen009.jpg

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<FILENAME>q12018supplementalpresen010.jpg
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Document 17 - file: q12018supplementalpresen010.jpg

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Document 18 - file: q12018supplementalpresen011.jpg

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Document 19 - file: q12018supplementalpresen012.jpg

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Document 20 - file: q12018supplementalpresen013.jpg

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<SEQUENCE>21
<FILENAME>q12018supplementalpresen014.jpg
<TEXT>
Document 21 - file: q12018supplementalpresen014.jpg

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<SEQUENCE>22
<FILENAME>q12018supplementalpresen015.jpg
<TEXT>
Document 22 - file: q12018supplementalpresen015.jpg

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