The Board of Directors of Masimo Corporation announced its commitment to appoint Michelle Brennan as the Company's sixth director, pending stockholder approval of the proposal to expand the Board of Directors to seven and the election of the Company's highly qualified director nominees, H Michael Cohen and Julie Shimer, Ph.D. Ms. Brennan was nominated by Politan Capital Management. Masimo stockholders do not need to vote for Ms. Brennan to secure her addition to the Board. Stockholders should vote FOR Mr. Cohen and Dr. Shimer and FOR Board expansion on the WHITE proxy card.

Should stockholders approve the Board expansion and elect the Company's nominees, Ms. Brennan would be appointed to the Board as a Class II director effective immediately following the Company's Annual Meeting of Stockholders to be held on June 26, 2023, subject to Ms. Brennan's willingness to serve.