MASIMO CORP — Director's Dealing 2025

Aug 12, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2025-04-29

Reporting Person: Brennan Michelle (Director, Chairman of the Board)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-29	Restricted Stock Units	$	A	766	Acquired	2035-04-29	Common Stock (766)	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 April 29, 2025 and will vest in full on the earlier of the first anniversary of the grant date of the date of the next annual meeting of stockholders following the date of grant.