MASIMO CORP — Director's Dealing 2023

May 31, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2023-05-26

Reporting Person: REYNOLDS CRAIG B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-26	Common Stock	M	1435	—	Acquired	6657	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-05-26	Restricted Stock Units	$	M	1435	Disposed		Common Stock (1435.0)	Direct

Footnotes

F1: Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of the Issuer upon vesting of the RSU.

F2: These RSUs were granted on May 26, 2022 and vested in full on May 26, 2023, the first anniversary of the grant date.