[8-K] MASIMO CORP Reports Material Event

Rhea-AI Filing Summary

Masimo Corporation furnished an 8‑K announcing it issued a press release with financial results for the quarter ended September 27, 2025, and provided a supplemental investor presentation. The press release (Exhibit 99.1) and supplemental materials (Exhibit 99.2) are furnished under Items 2.02 and 7.01 and are not deemed “filed” for Section 18 liability or incorporated by reference unless expressly stated.

The CFO planned to review third‑quarter 2025 results and an updated outlook for the remainder of fiscal 2025 on a conference call scheduled for November 4, 2025.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

________________________________________________

FORM 8-K

________________________________________________

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 4, 2025

MASIMO CORPORATION

(Exact name of registrant as specified in its charter)

________________________________________________

DE

001-33642

33-0368882

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

52 Discovery

Irvine,

CA

92618

(Address of Principal Executive Offices)

(Zip Code)

(949)

297-7000

Registrant’s telephone number, including area code:

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2 (b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, $0.001 par value

MASI

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933(§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

☐

Item 2.02. Results of Operations and Financial Condition.

On November 4, 2025, Masimo Corporation (the “Company”) issued a press release announcing its financial results for the quarter ended September 27, 2025. A copy of the press release is furnished as Exhibit 99.1 to this Current Report.

In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 7.01. Regulation FD Disclosure.

In connection with the Company’s conference call scheduled to be held on November 4, 2025, the Company’s Chief Financial Officer will review supplemental information regarding the Company’s financial results for the third quarter 2025, as well as the Company’s updated outlook for the remainder of fiscal 2025. The Company is making available to investors supplemental financial information by fiscal quarter for fiscal years 2022, 2023 and 2024, along with the first, second and third quarters of 2025, pursuant to the materials furnished as Exhibit 99.2 to this Current Report.

In accordance with General Instruction B.2 of Form 8-K, the information in Item 7.01 of this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d) The following items are filed as exhibits to the Current Report on Form 8-K.

Exhibit  No.			Description
99.1			Press Release, Dated November 4, 2025, Reporting Third Quarter 2025 Financial Results
99.2			Masimo Third Quarter 2025 Supplemental Presentation to Earnings Press Release
104			Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, Masimo Corporation has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

MASIMO CORPORATION

Date: November 4, 2025

By:

/s/ MICAH YOUNG

Micah Young

Executive Vice President & Chief Financial Officer

(Principal Financial Officer)

FAQ

What did Masimo (MASI) announce in this 8‑K?

Masimo furnished a press release for the quarter ended September 27, 2025 (Exhibit 99.1) and a supplemental presentation (Exhibit 99.2).

Are the materials considered 'filed' for liability purposes?

No. Items 2.02 and 7.01 are furnished and shall not be deemed “filed” for Section 18 of the Exchange Act.

When is the Masimo (MASI) conference call?

A conference call was scheduled for November 4, 2025, with the CFO reviewing third‑quarter 2025 results and updated fiscal 2025 outlook.

What periods are covered in the supplemental financial information?

Quarterly data for fiscal years 2022, 2023, 2024, and the first, second, and third quarters of 2025.

Which exhibits accompany the 8‑K?

Exhibit 99.1 (press release), Exhibit 99.2 (supplemental presentation), and Exhibit 104 (cover page Inline XBRL).

What quarter does the press release address?

Financial results for the quarter ended September 27, 2025 (third quarter 2025).