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MASIMO CORP Director's Dealing 2025

Aug 12, 2025

30755_dirs_2025-08-11_a6848482-db0d-4c1e-bf25-2fece9f348cd.zip

Director's Dealing

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SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2025-07-31

Reporting Person: Ahmed Omar (CTIO & EVP of Engineering)

Holdings (Non-Derivative)

Security Shares Ownership
Common Stock 1768 Direct

Holdings (Derivative)

Security Exercise Price Expiration Underlying Shares Ownership
Restricted Stock Units $ 2035-08-05 Common Stock (1231) Direct
Restricted Stock Units $ 2035-03-13 Common Stock (6638) Direct
Restricted Stock Units $ 2034-11-13 Common Stock (2474) Direct
Restricted Stock Units $ 2033-12-04 Common Stock (10745) Direct
Restricted Stock Units $ 2033-03-21 Common Stock (4578) Direct
Restricted Stock Units $ 2032-03-21 Common Stock (5078) Direct
Restricted Stock Units $ 2031-03-22 Common Stock (1316) Direct

Footnotes

F1: This RSU award was granted on July 7, 2025 and will vest ratably over five years, with 20% of the award 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 13, 2025 and will vest ratably over five years, with 20% of the award vesting on each anniversary of the grant date.

F4: This RSU award was granted on November 13, 2024 and will vest in full on the first anniversary of the grant date.

F5: This RSU award was granted on November 16, 2023 and will vest ratably over five years, with 20% of the award vesting on each anniversary of the grant date.

F6: This RSU award was granted on March 8, 2023 and will vest ratably over five years, with 20% of the award vesting on each anniversary of the grant date.

F7: This RSU award was granted on February 22, 2022 and will vest ratably over five years, with 20% of the award vesting on each anniversary of the grant date.

F8: This RSU award was granted on February 26, 2021 and will vest ratably over five years, with 20% of the award vesting on each anniversary of the grant date.