Description of the Company	3 Months Ended
Apr. 04, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Company	1. Description of the Company Masimo Corporation (the “Company”) is a global medical technology company that develops and produces a wide array of industry-leading monitoring technologies, including innovative measurements, sensors, and patient monitors. Powered by the Masimo Hospital Automation™ and Masimo SafetyNet® platforms, Masimo connectivity, automation, and telehealth and telemonitoring solutions are improving and automating care delivery both in the hospital and beyond. As of April 4, 2026, the Company operates one reportable segment: healthcare. The Company’s healthcare products and patient monitoring solutions generally incorporate a monitor or circuit board, proprietary single-patient use or reusable sensors, software and/or cables. The Company primarily sells its healthcare products to hospitals, emergency medical service providers, home care providers, physician offices, veterinarians, and long-term care facilities through its direct sales force, distributors and original equipment manufacturer (OEM) partners. The Company’s former non-healthcare consumer business incorporated audio and home integration technologies, which were primarily sold or licensed direct-to-consumers, or through authorized retailers and wholesalers. As of December 28, 2024, the non-healthcare consumer business remained part of the Company’s continuing operations, but was being evaluated for divestiture. As of March 29, 2025, as the sales evaluation process progressed, the non-healthcare consumer business was classified as held-for-sale, and reported as discontinued operations. On May 6, 2025, the Company announced that it entered into a definitive agreement to sell Viper Holdings Corporation, a Delaware corporation which previously owned and operated the Company’s non-healthcare business (together with its subsidiaries, “Sound United”) to Harman International Industries, Incorporated, a wholly-owned subsidiary of Samsung Electronics., Ltd. On September 23, 2025, the Company completed the sale of Sound United. For additional information with respect to the non-healthcare consumer business separation, discontinued operations of this business and sale, see Note 18, “Discontinued Operations”. Merger Agreement On February 16, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Danaher Corporation, a Delaware corporation (“Danaher”) and Mobius Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Danaher (“Merger Sub”), pursuant to which, among other things, Merger Sub will merge with and into the Company (the “Merger”), with the Company continuing as the surviving corporation and a wholly owned subsidiary of Danaher. As set forth in the Merger Agreement, at the effective time of the Merger, each share of common stock, par value $0.001 per share, of the Company (other than any shares owned by Danaher, Merger Sub or the Company or any of their wholly owned subsidiaries or shares in respect of which appraisal has been duly demanded, and not effectively withdrawn or otherwise waived or lost, pursuant to Section 262 of the General Corporation Law of the State of Delaware) issued and outstanding immediately prior to the effective time of the Merger will be automatically converted into the right to receive $180.00 in cash, without interest. The Merger is expected to close in 2026, subject to customary closing conditions, including approval by our stockholders and the receipt of required regulatory approvals. On May 1, 2026, our stockholders adopted the Merger Agreement at a special meeting of stockholders. If the Merger is completed, our common stock will be delisted from the Nasdaq Stock Market and deregistered under the Securities Exchange Act of 1934, as amended, as soon as reasonably practicable following the effective time of the Merger. In connection with the proposed Merger, the Company incurred approximately $17.9 million in selling, general and administrative expenses during the first quarter of fiscal 2026, and we expect to incur additional financial advisory, legal, accounting, and other professional fees in connection with the Merger. Additional information about the Merger Agreement and the Merger is set forth in the Company’s definitive proxy statement on Schedule 14A was filed with the SEC on April 1, 2026. The terms “the Company” and “Masimo” refer to Masimo Corporation and, where applicable, its consolidated subsidiaries.

Masimo Corporation (the “Company”) is a global medical technology company that develops and produces a wide array of industry-leading monitoring technologies, including innovative measurements, sensors, and patient monitors. Powered by the Masimo Hospital Automation™ and Masimo SafetyNet® platforms, Masimo connectivity, automation, and telehealth and telemonitoring solutions are improving and automating care delivery both in the hospital and beyond. As of April 4, 2026, the Company operates one reportable segment: healthcare.

The Company’s healthcare products and patient monitoring solutions generally incorporate a monitor or circuit board, proprietary single-patient use or reusable sensors, software and/or cables. The Company primarily sells its healthcare products to hospitals, emergency medical service providers, home care providers, physician offices, veterinarians, and long-term care facilities through its direct sales force, distributors and original equipment manufacturer (OEM) partners.

As of December 28, 2024, the non-healthcare consumer business remained part of the Company’s continuing operations, but was being evaluated for divestiture. As of March 29, 2025, as the sales evaluation process progressed, the non-healthcare consumer business was classified as held-for-sale, and reported as discontinued operations. On May 6, 2025, the Company announced that it entered into a definitive agreement to sell Viper Holdings Corporation, a Delaware corporation which previously owned and operated the Company’s non-healthcare business (together with its subsidiaries, “Sound United”) to Harman International Industries, Incorporated, a wholly-owned subsidiary of Samsung Electronics., Ltd. On September 23, 2025, the Company completed the sale of Sound United. For additional information with respect to the non-healthcare consumer business separation, discontinued operations of this business and sale, see Note 18, “Discontinued Operations”.

On February 16, 2026, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Danaher Corporation, a Delaware corporation (“Danaher”) and Mobius Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Danaher (“Merger Sub”), pursuant to which, among other things, Merger Sub will merge with and into the Company (the “Merger”), with the Company continuing as the surviving corporation and a wholly owned subsidiary of Danaher. As set forth in the Merger Agreement, at the effective time of the Merger, each share of common stock, par value $0.001 per share, of the Company (other than any shares owned by Danaher, Merger Sub or the Company or any of their wholly owned subsidiaries or shares in respect of which appraisal has been duly demanded, and not effectively withdrawn or otherwise waived or lost, pursuant to Section 262 of the General Corporation Law of the State of Delaware) issued and outstanding immediately prior to the effective time of the Merger will be automatically converted into the right to receive $180.00 in cash, without interest. The Merger is expected to close in 2026, subject to customary closing conditions, including approval by our stockholders and the receipt of required regulatory approvals. On May 1, 2026, our stockholders adopted the Merger Agreement at a special meeting of stockholders.

In connection with the proposed Merger, the Company incurred approximately $17.9 million in selling, general and administrative expenses during the first quarter of fiscal 2026, and we expect to incur additional financial advisory, legal, accounting, and other professional fees in connection with the Merger.