MASIMO CORP — Director's Dealing 2011

Apr 1, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2011-03-30

Reporting Person: KIANI JOE E (Director, CEO and Chairman of the Board)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-04-01	Common Stock	S	59919	$33.0574	Disposed	798241	Direct
2011-03-31	Common Stock	S	123434	$33.1709	Disposed	858160	Direct
2011-03-30	Common Stock	S	118946	$33.0009	Disposed	981594	Direct

Footnotes

F1: The shares covered by this Form 4 have been sold pursuant to a Rule 10b5-1 Sales Plan dated as of September 15, 2009 , which is intended to comply with Rule 10b5-1 promulgated under the Securities Exchange Act of 1934, as amended.