William R. Jellison - 29 Apr 2025 Form 4 Insider Report for MASIMO CORP (MASI)

Reporting relationship: Director
Issuer ticker: MASI
Reported as of: 29 Apr 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 May 2025, 08:51:16 UTC
Prior SEC filing: 02 Apr 2025
Next SEC filing: 24 Jun 2025
Source filing: View source filing
Reporting owner signature: /s/ Micah W. Young, Attorney-In-Fact

Key filing fact

William R. Jellison filed Form 4 for MASIMO CORP (MASI) on 02 May 2025.

Key facts

This page summarizes William R. Jellison's Form 4 filing for MASIMO CORP (MASI).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 02 May 2025, 08:51.

Change

Previous filing in this sequence was filed on 02 Apr 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001189883 Primary reporting owner

Jellison William R

Relationship: Director
Address: C/O MASIMO CORPORATION, 52 DISCOVERY, IRVINE
Signature: /s/ Micah W. Young, Attorney-In-Fact
Signature date: 01 May 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MASI transaction

Common Stock

Award

Transaction value: $0
Shares: +1,790
Change %
Price: $0.000000
Shares after: 1,790
Date: 29 Apr 2025
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MASI transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -1,790
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 29 Apr 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,790
Exercise price
Footnotes: F1, F2

MASI transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +1,225
Change %
Price: $0.000000
Shares after: 1,225
Date: 29 Apr 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,225
Exercise price
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote 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.

Footnote F2

These RSUs were granted on September 19, 2024 and vested in full on the date of the next annual meeting of stockholders following the date of grant.

Footnote F3

These RSUs were granted on April 29, 2025 and will vest in full on the earlier of the first anniversary of the grant date or the date of the next annual meeting of stockholders following the date of grant.