Proxy Statement - Form DFAN14A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

Filed by the Registrant ¨Filed by a Party other than the Registrant x

Check the appropriate box:

¨	Preliminary Proxy Statement

¨	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

¨	Definitive Proxy Statement

x	Definitive Additional Materials

¨	Soliciting material Pursuant to §240.14a-12

Masimo Corporation

(Name of Registrant as Specified In Its Charter)

POLITAN CAPITAL MANAGEMENT LP
POLITAN CAPITAL MANAGEMENT GP LLC
POLITAN CAPITAL PARTNERS GP LLC
POLITAN CAPITAL NY LLC
POLITAN INTERMEDIATE LTD.
POLITAN CAPITAL PARTNERS MASTER FUND LP
POLITAN CAPITAL PARTNERS LP
POLITAN CAPITAL OFFSHORE PARTNERS LP
QUENTIN KOFFEY
MATTHEW HALL
AARON KAPITO
WILLIAM JELLISON

DARLENE SOLOMON

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

x	No fee required.

¨	Fee paid previously with preliminary materials.

¨	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

On June 26, 2024, Politan Capital Management LP, a Delaware limited partnership ("Politan"), updated its website, www.AdvanceMasimo.com (the "Site"), in connection with the solicitation of stockholders of Masimo Corporation, a Delaware corporation ("Masimo"). Copies of the materials posted to the Site are filed herewith.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

The information herein contains "forward-looking statements." Specific forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts and include, without limitation, words such as "may," "will," "expects," "believes," "anticipates," "plans," "estimates," "projects," "potential," "targets," "forecasts," "seeks," "could," "should" or the negative of such terms or other variations on such terms or comparable terminology. Similarly, statements that describe our objectives, plans or goals are forward-looking. Forward-looking statements are subject to various risks and uncertainties and assumptions. There can be no assurance that any idea or assumption herein is, or will be proven, correct. If one or more of the risks or uncertainties materialize, or if any of the underlying assumptions of Politan Capital Management LP ("Politan") or any of the other participants in the proxy solicitation described herein prove to be incorrect, the actual results may vary materially from outcomes indicated by these statements. Accordingly, forward-looking statements should not be regarded as a representation by Politan that the future plans, estimates or expectations contemplated will ever be achieved.

Certain statements and information included herein may have been sourced from third parties. Politan does not make any representations regarding the accuracy, completeness or timeliness of such third party statements or information. Except as may be expressly set forth herein, permission to cite such statements or information has neither been sought nor obtained from such third parties. Any such statements or information should not be viewed as an indication of support from such third parties for the views expressed herein.

Politan disclaims any obligation to update the information herein or to disclose the results of any revisions that may be made to any projected results or forward-looking statements herein to reflect events or circumstances after the date of such information, projected results or statements or to reflect the occurrence of anticipated or unanticipated events

CERTAIN INFORMATION CONCERNING THE PARTICIPANTS

Politan and the other Participants (as defined below) have filed a definitive proxy statement and accompanying WHITE universal proxy card or voting instruction form with the Securities and Exchange Commission (the "SEC") to be used to solicit proxies for, among other matters, the election of its slate of director nominees at the 2024 annual stockholders meeting (the "2024 Annual Meeting") of Masimo Corporation, a Delaware corporation ("Masimo"). Shortly after filing its definitive proxy statement with the SEC, Politan furnished the definitive proxy statement and accompanying WHITE universal proxy card or voting instruction form to some or all of the stockholders entitled to vote at the 2024 Annual Meeting.

The participants in the proxy solicitation are Politan, Politan Capital Management GP LLC ("Politan Management"), Politan Capital Partners GP LLC ("Politan GP"), Politan Capital NY LLC (the "Record Stockholder"), Politan Intermediate Ltd., Politan Capital Partners Master Fund LP ("Politan Master Fund"), Politan Capital Partners LP ("Politan LP"), Politan Capital Offshore Partners LP ("Politan Offshore" and, collectively with Politan Master Fund and Politan LP, the "Politan Funds"), Quentin Koffey, Matthew Hall, Aaron Kapito (all of the foregoing persons, collectively, the "Politan Parties"), William Jellison and Darlene Solomon (such individuals, collectively with the Politan Parties, the "Participants").

As of the date hereof, the Politan Parties in this solicitation collectively own an aggregate of 4,713,518 shares (the "Politan Group Shares") of common stock, par value $0.001 per share, of Masimo (the "Common Stock") (such shares,. Mr. Koffey may be deemed to own an aggregate of 4,714,746 shares of Common Stock (the "Koffey Shares"), which consists of 1,228 restricted stock units (the "RSUs") as well as the Politan Group Shares. Politan, as the investment adviser to the Politan Funds, may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) the Politan Group Shares, and, therefore, Politan may be deemed to be the beneficial owner of all of the Politan Group Shares. The Record Stockholder is the direct and record owner of 1,000 shares of Common Stock that comprise part of the Politan Group Shares. Both the Politan Group Shares and the Koffey Shares represent approximately 8.9% of the outstanding shares of Common Stock based on 53,182,247 shares of Common Stock outstanding as of June 13, 2024, as reported in Masimo's definitive proxy statement filed on June 17, 2024. As the general partner of Politan, Politan Management may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) all of the Politan Group Shares and, therefore, Politan Management may be deemed to be the beneficial owner of all of the Politan Group Shares. As the general partner of the Politan Funds, Politan GP may be deemed to have the shared power to vote or to direct the vote of (and the shared power to dispose or direct the disposition of) all of the Politan Group Shares, and therefore Politan GP may be deemed to be the beneficial owner of all of the Politan Group Shares. Mr. Koffey, including by virtue of his position as the Managing Partner and Chief Investment Officer of Politan and as the Managing Member of Politan Management and Politan GP, may be deemed to have the shared power to vote or direct the vote of (and the shared power to dispose or direct the disposition of) all of the Koffey Shares.

IMPORTANT INFORMATION AND WHERE TO FIND IT

POLITAN STRONGLY ADVISES ALL STOCKHOLDERS OF MASIMO TO READ ITS DEFINITIVE PROXY STATEMENT, ANY AMENDMENTS OR SUPPLEMENTS TO SUCH PROXY STATEMENT AND OTHER PROXY MATERIALS FILED BY POLITAN WITH THE SEC AS THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. SUCH PROXY MATERIALS WILL BE AVAILABLE AT NO CHARGE ON THE SEC'S WEBSITE AT WWW.SEC.GOV. THE DEFINITIVE PROXY STATEMENT AND OTHER RELEVANT DOCUMENTS, ARE ALSO AVAILABLE ON THE SEC WEBSITE, FREE OF CHARGE, OR BY DIRECTING A REQUEST TO THE PARTICIPANTS' PROXY SOLICITOR, D.F. KING & CO., INC., 48 WALL STREET, 22ND FLOOR, NEW YORK, NEW YORK 10005 (STOCKHOLDERS CAN CALL TOLL-FREE: (888) 628-8208.

Investor Contact

D.F. King & Co., Inc.

Edward McCarthy

[email protected]

Media Contact

Dan Zacchei / Joe Germani

Longacre Square Partners

[email protected] / [email protected]

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