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United States securities and exchange commission logo





                              May 18, 2023

       Quentin Koffey
       Managing Partner and Chief Investment Officer
       Politan Capital Management LP
       106 West 56th Street, 10th Floor
       New York, New York 10019

                                                        Re: Masimo Corporation
                                                            PRRN14A filed May
15, 2023
                                                            Filed by Politan
Capital Management et al.
                                                            File No. 001-33642

       Dear Quentin Koffey:

              We have reviewed your filing and have the following comments. In
some of our
       comments, we may ask you to provide us with information so we may better
understand your
       disclosure.

               Please respond to these comments by providing the requested
information or advise us as
       soon as possible when you will respond. If you do not believe our
comments apply to your facts
       and circumstances, please tell us why in your response.

              After reviewing your response to these comments, we may have
additional comments.
       Defined terms used herein have the same meaning as in your proxy
statement.

       Revised Preliminary Schedule 14A

       Reasons for the Solicitation, page 13

   1.                                                   Refer to our comment
letter dated May 10, 2023. We reissue comment 6. In this respect,
                                                        we note your disclosure
that your nominees "would seek to provide independent oversight
                                                        of management" and your
response that your nominees "have no predetermined specific
                                                        plans." If your
nominees do not have specific changes that they would attempt to
                                                        institute, revise to so
state in the proxy statement.
       Votes Required for Approval, page 29

   2.                                                   Refer to comment 11 in
our prior comment letter. We note that your revised proxy
                                                        statement states that,
in order to pass, proposals two, three and six "each require the
                                                        affirmative vote of the
holders of a majority of the shares present or represented by proxy
                                                        and voting at the 2023
Annual Meeting." However, as explained in our initial comment
 Quentin Koffey
Politan Capital Management LP
May 18, 2023
Page 2
         11, the Bylaws appear to provide that such proposals must be passed by
a majority of
         votes cast (disregarding abstentions and broker non-votes). Please
revise or advise.
Solicitation of Proxies, page 31

3.       Refer to comment 12 in our prior comment letter. We note your response
that "any
         success fee would be a reasonable amount." Revise to state this in the
proxy statement,
         and to include a ceiling on the success fee if known.
        We remind you that the filing persons are responsible for the accuracy
and adequacy of
their disclosures, notwithstanding any review, comments, action or absence of
action by the staff.

         Please direct any questions to Tina Chalk at (202) 551-3263 Blake
Grady at (202) 551-
8573.



FirstName LastNameQuentin Koffey                             Sincerely,
Comapany NamePolitan Capital Management LP
                                                             Division of
Corporation Finance
May 18, 2023 Page 2                                          Office of Mergers
& Acquisitions
FirstName LastName
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