Omar Ahmed - 31 Jul 2025 Form 3 Insider Report for MASIMO CORP (MASI)

Role
CTIO & EVP of Engineering
Signature
/s/ Micah W. Young, Attorney-In-Fact
Issuer symbol
MASI
Transactions as of
31 Jul 2025
Transactions value $
$0
Form type
3
Filing time
11 Aug 2025, 20:26:29
Next filing
17 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ahmed Omar CTIO & EVP of Engineering C/O MASIMO CORPORATION, 52 DISCOVERY, IRVINE /s/ Micah W. Young, Attorney-In-Fact 2025-08-11 0002077034

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding MASI Common Stock 1.77K 31 Jul 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 1.23K Direct F1, F2
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 6.64K Direct F2, F3
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 2.47K Direct F2, F4
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 10.7K Direct F2, F5
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 4.58K Direct F2, F6
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 5.08K Direct F2, F7
holding MASI Restricted Stock Units 31 Jul 2025 Common Stock 1.32K Direct F2, F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.

Remarks:

EX-24 - Power of Attorney