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: 2025-03-11

Reporting Person: Young Micah W (EVP & Chief Financial Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-11	Non-Qualified Stock Option (Right to Buy)	$166.52	A	7739	Acquired	2035-03-11	Common Stock (7739)	Direct
2025-03-11	Restricted Stock Units	$	A	3495	Acquired	2035-03-11	Common Stock (3495)	Direct

Footnotes

F1: This option was granted on March 11, 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 11, 2025 and will vest ratably over four years, with 25% of the award vesting on each anniversary of the grant date.