MASIMO CORP — Director's Dealing 2011

Oct 31, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2011-10-27

Reporting Person: de Raad Mark (EVP & Chief Financial Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-10-27	Non-qualified stock option (right to buy)	$20.19	A	30000	Acquired	2021-10-27	Common Stock (30000)	Direct

Footnotes

F1: This option was granted on October 27, 2011 and is exercisable as the option vests. This option vests over a five year period, with 20% of the shares subject to the option vesting on each anniversary of the grant date.