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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WcoZTYyaO3u08nHra2QsP/mjvYtohN2ctMSPKFXy8OMiJKMr+S33ZiCHIcd7dZIc
 JUn+7YA0lwdeEYxogJ1Tdw==

<SEC-DOCUMENT>9999999997-09-019436.txt : 20090522
<SEC-HEADER>9999999997-09-019436.hdr.sgml : 20090522
<ACCEPTANCE-DATETIME>20090519105829
<PAPER>
ACCESSION NUMBER:		9999999997-09-019436
CONFORMED SUBMISSION TYPE:	ARS
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090103
FILED AS OF DATE:		20090507
DATE AS OF CHANGE:		20090519
EFFECTIVENESS DATE:		20090507

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:		ARS
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33642
		FILM NUMBER:		09011212

	BUSINESS ADDRESS:	
		STREET 1:		40 PARKER
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618
		BUSINESS PHONE:		949-297-7000

	MAIL ADDRESS:	
		STREET 1:		40 PARKER
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618
</SEC-HEADER>
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<TYPE>ARS
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<FILENAME>9999999997-09-019436.paper
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This document was generated as part of a paper submission.
Please reference the Document Control Number 09011212 for access to the original document.
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