MASIMO CORP — Director's Dealing 2011

Nov 23, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASIMO CORP (MASI)
CIK: 0000937556
Period of Report: 2011-11-22

Reporting Person: KIANI JOE E (Director, CEO and Chairman of the Board)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-11-22	Common Stock	P	35404	$18.2803	Acquired	2780291	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	798241	Direct
Common Stock	1029114	Indirect
Common Stock	403095	Indirect
Common Stock	9914	Indirect
Common Stock	9000	Indirect

Footnotes

F1: Shares held in 3 Trusts for which Mr. Kiani is the sole Trustee.

F2: Shares acquired under the Masimo Retirement Savings Plan. The information is based on a plan statement dated as of November 22, 2011

F3: Shares held by immediate family member for which Mr. Kiani exercises voting and investment control