MASIMO CORP — Director's Dealing 2017

Nov 10, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2017-11-08

Reporting Person: Lee Yongsam (EVP & CIO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-11-08	Common Stock	M	5000	$30.79	Acquired	74000	Direct
2017-11-08	Common Stock	S	5000	$89.5946	Disposed	69000	Direct
2017-11-08	Common Stock	M	876	$27.25	Acquired	69876	Direct
2017-11-08	Common Stock	S	876	$89.5946	Disposed	69000	Direct
2017-11-09	Common Stock	M	8100	$27.25	Acquired	77100	Direct
2017-11-09	Common Stock	S	8100	$89.3112	Disposed	69000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-11-08	Non-Qualified Stock Option (Right to Buy)	$30.79	M	5000	Disposed	2018-02-07	Common Stock (5000.0)	Direct
2017-11-08	Non-Qualified Stock Option (Right to Buy)	$27.25	M	876	Disposed	2020-02-11	Common Stock (876.0)	Direct
2017-11-09	Non-Qualified Stock Option (Right to Buy)	$27.25	M	8100	Disposed	2020-02-11	Common Stock (8100.0)	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 21, 2017, which is intended to comply with Rule 10b5-1 promulgated under the Securities Exchange Act of 1934, as amended.

F2: The price reported in Column 4 represents the weighted average sale price per share. The actual sale prices ranged from a low of $89.00 per share to a high of $90.105 per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: The price reported in Column 4 represents the weighted average sale price per share. The actual sale prices ranged from a low of $89.00 per share to a high of $89.80 per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F4: 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.

F5: 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.