[Form 3] Masimo Corporation Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

Greg Allen Meehan, Chief Commercial Officer of Masimo Corporation (MASI), received time‑based equity awards tied to company stock. He was granted a non‑qualified stock option for 4,306 shares at an exercise price of $155.13 that vests 20% each year over five years and expires on 07/21/2035. He also received 1,933 restricted stock units that vest 25% annually over four years, with each RSU convertible into one share upon vesting.

Insights

Corporate Governance Expert

TL;DR Routine, time‑based executive grants aligning officer incentives with long‑term shareholder value.

The filing documents standard compensation awards for the Chief Commercial Officer rather than a change in control or special retention package. The option carries an exercise price of $155.13 and a 10‑year term to 07/21/2035, exercisable as it vests. The RSUs convert one‑for‑one to common shares upon vesting. These are governance‑typical grants intended to retain and motivate the reporting officer over multiple years.

Compensation Analyst

TL;DR Combination of options and RSUs with multi‑year vesting is a standard retention/long‑term incentive mix.

The package pairs a non‑qualified stock option for 4,306 shares at $155.13 with 1,933 RSUs. The option vests 20% annually over five years; the RSUs vest 25% annually over four years. The awards are time‑based, providing future upside to the officer contingent on continued service and future stock performance.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Meehan Greg Allen

(Last) (First) (Middle)

C/O MASIMO CORPORATION

52 DISCOVERY

(Street)

IRVINE CA 92618

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/31/2025

3. Issuer Name and Ticker or Trading Symbol
MASIMO CORP [ MASI ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Commerical Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (Right to Buy)	(1)	07/21/2035	Common Stock	4,306	$155.13	D
Restricted Stock Units	(2)	07/21/2035	Common Stock	1,933	(3)	D

Explanation of Responses:

1. This option was granted on July 21, 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.

2. This RSU award was granted on July 21, 2025 and will vest ratably over four years, with 25% of the award vesting on each anniversary of the grant date.

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

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Micah W. Young, Attorney-In-Fact	08/11/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What equity awards did Greg Meehan receive at Masimo (MASI)?

He received a non‑qualified stock option for 4,306 shares and 1,933 restricted stock units (RSUs).

What is the exercise price and term of the option granted to the MASI officer?

The option has an exercise price of $155.13 and an expiration date of 07/21/2035.

How do the awards vest for the Masimo (MASI) CCO?

The option vests 20% annually over five years. The RSUs vest 25% annually over four years and convert to one share per RSU upon vesting.

Does each RSU convert into Masimo common stock?

Yes. Each restricted stock unit represents the contingent right to receive one share of common stock upon vesting.

What role does the reporting person hold at Masimo (MASI)?

The reporting person is listed as the company’s Chief Commercial Officer.