MASIMO CORP — Director's Dealing 2025

Mar 13, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2025-03-10

Reporting Person: Muhsin Bilal (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-10	Common Stock	M	30000	$37.84	Acquired	54172	Direct
2025-03-10	Common Stock	S	2400	$163.28	Disposed	51772	Direct
2025-03-10	Common Stock	S	3935	$165.18	Disposed	47837	Direct
2025-03-10	Common Stock	S	10087	$166.03	Disposed	37750	Direct
2025-03-10	Common Stock	S	1436	$166.71	Disposed	36314	Direct
2025-03-10	Common Stock	S	1700	$167.97	Disposed	34614	Direct
2025-03-10	Common Stock	S	1761	$169.37	Disposed	32853	Direct
2025-03-10	Common Stock	S	6965	$170.86	Disposed	25888	Direct
2025-03-10	Common Stock	S	1716	$171.76	Disposed	24172	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-10	Non-Qualified Stock Option (Right to Buy)	$37.84	M	30000	Disposed	2026-02-28	Common Stock (30000)	Direct

Footnotes

F1: Sales were effected in transactions intended to satisfy the requirements of Rule 10b5-1(c) of the Securities Exchange Act of 1934, as amended.

F2: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $162.99 per share to a high of $163.80 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 transactions were effected.

F3: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $164.62 per share to a high of $165.61 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 transactions were effected.

F4: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $165.62 per share to a high of $166.61 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 transactions were effected.

F5: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $166.62 per share to a high of $166.89 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 transactions were effected.

F6: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $170.47 per share to a high of $171.43 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 transactions were effected.

F7: The price reported in Column 4 represents the weighted average purchase price per share. The actual sale prices ranged from a low of $171.47 per share to a high of $172.46 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 transactions were effected.

F8: This option was granted on February 29, 2016 and was exercisable as the option vested. This option vested over a five year period, with 20% of the shares subject to the option vesting on each anniversary of the grant date.