MASIMO CORP — Director's Dealing 2018

Jun 2, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2018-05-30

Reporting Person: Barker Steven (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-30	Common Stock	M	10000	$27.25	Acquired	73249	Direct
2018-05-30	Common Stock	S	10000	$100	Disposed	63249	Direct
2018-05-31	Common Stock	M	1583	$99.05	Acquired	64832	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-30	Non-Qualified Stock Option (Right to Buy)	$27.25	M	10000	Disposed	2020-02-11	Common Stock (10000.0)	Direct
2018-05-31	Restricted Stock Units	$	M	1583	Disposed	2027-06-01	Common Stock (1583.0)	Direct
2018-05-31	Restricted Stock Units	$	A	1413	Acquired	2028-05-31	Common Stock (1413.0)	Direct

Footnotes

F1: The shares covered by this Form 4 were exercised and sold pursuant to a Rule 10b5-1 Sales Plan dated as of August 23, 2017, which is intended to comply with Rule 10b5-1 promulgated under the Securities Exchange Act of 1934, as amended.

F2: This option was granted on February 11, 2010 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: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of the Issuer upon vesting of the RSU.

F4: These RSUs were granted on June 1, 2017 and vested in full on May 31, 2018, the date of the next annual meeting of stockholders following the date of the grant.

F5: These RSUs were granted on May 31, 2018 and will vest in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting of stockholders following the date of the grant.