Joe E. Kiani - Jan 2, 2022 Form 4 Insider Report for MASIMO CORP (MASI)

Role: CEO and Chairman of the Board, Director
Signature: /s/ Micah Young, Attorney-In-Fact
Stock symbol: MASI
Transactions as of: Jan 2, 2022
Transactions value $: -$3,092,050
Form type: 4
Date filed: 1/4/2022, 03:26 PM
Previous filing: Feb 14, 2022
Next filing: Feb 14, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MASI	Common Stock	Options Exercise	$0	+20K	+6.15%	$0.00	345K	Jan 2, 2022	Direct
transaction	MASI	Common Stock	Tax liability	-$3.09M	-10.6K	-3.06%	$292.78	335K	Jan 2, 2022	Direct
holding	MASI	Common Stock						513K	Jan 2, 2022	By Trust	F1
holding	MASI	Common Stock						353K	Jan 2, 2022	By Trust	F1
holding	MASI	Common Stock						359K	Jan 2, 2022	By Trust	F1
holding	MASI	Common Stock						2.25M	Jan 2, 2022	By Trust	F2
holding	MASI	Common Stock						10.4K	Jan 2, 2022	See Footnote	F3
holding	MASI	Common Stock						9K	Jan 2, 2022	See Footnote	F4

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
transaction	MASI	Restricted Stock Units	Options Exercise	$0	-20K	-50%	$0.00	20K	Jan 2, 2022	Common Stock	20K		Direct	F5, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Shares held in four trusts for which Mr. Kiani is not the Trustee.
F2	Shares held in one trust for which Mr. Kiani is the sole trustee.
F3	Shares held in Masimo Retirement Savings Plan.
F4	Shares held by an immediate family member for which Mr. Kiani exercises voting and investment control.
F5	Each restricted stock unit (RSU) represents the contingent right to receive one share of common stock of the Issuer upon vesting of the RSU.
F6	On February 27, 2018, the Reporting Person was granted 100,000 restricted stock units, 20% of which were vested upon grant and 20% of which will vest on the first business day of each fiscal year thereafter.