MASIMO CORP — Director's Dealing 2013

Feb 8, 2013

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2012-12-29

Reporting Person: Fishel Rick (President Americas& WW OEM Bus)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-11	Non-Qualified Stock Option (right to buy)	$23.98	J	718	Disposed	2019-01-11	Non-Qualified Stock Option (right to buy) (718)	Direct
2012-02-07	Non-Qualified Stock Option (right to buy)	$30.79	J	1234	Disposed	2018-02-07	Non-Qualified Stock Option (right to buy) (1234)	Direct

Footnotes

F1: Since the date of the reporting person's last ownership report, pursuant to a domestic relations order (the "Domestic Relations Order"), the reporting person transferred an aggregate of 1,952 shares of Masimo common stock (the "Shares"), at the sole direction, and for the sole benefit, of the reporting person's former spouse. This transaction did not result in an acquisition of beneficial ownership by the reporting person.

F2: This option was granted on January 11, 2009 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.

F3: This option was granted on February 7, 2008 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.