MASIMO CORP — Director's Dealing 2025

Mar 14, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2025-03-13

Reporting Person: Muhsin Bilal (Chief Operating Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-13	Non-Qualified Stock Option (Right to Buy)	$165.69	A	7771	Acquired	2035-03-13	Common Stock (7771)	Direct
2025-03-13	Restricted Stock Units	$	A	3512	Acquired	2035-03-13	Common Stock (3512)	Direct

Footnotes

F1: This option was granted on March 13, 2025 and is exercisable as the option vests. The option vests over a five year period, with 20% of the shares subject to the option vesting on each anniversary of
the grant date.

F2: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of the Issuer upon vesting of the RSU.

F3: This RSU award was granted on March 13, 2025 and will vest ratably over four years, with 25% of the award vesting on each anniversary of the grant date.