{"url_path":"/sec/masi/8-k/2026-06-10/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-10","source_url":"https://www.sec.gov/Archives/edgar/data/937556/0001104659-26-072151-index.html","accession_number":"0001104659-26-072151","cik":"0000937556","ticker":"MASI","issuer_name":"MASIMO CORP","edgar_url":"https://www.sec.gov/Archives/edgar/data/937556/0001104659-26-072151-index.html","primary_entity_key":"0000937556","primary_entity_name":"MASIMO CORP"},"word_count":465,"has_tables":true,"body_markdown":"false\n--01-02\n0000937556\n\n0000937556\n\n2026-06-10\n2026-06-10\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n \n\n \n\n \n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWashington,\nD.C. 20549\n\n \n\nFORM 8-K\n\n \n\nCURRENT REPORT\n\n** **\n\nPursuant to Section 13 or 15(d) of the Securities\nExchange Act of 1934\n\n \n\n**Date of Report (Date of Earliest Event Reported):\nJune 10, 2026**\n\n \n\n**MASIMO CORPORATION**\n\n(Exact\nname of registrant as specified in its charter)\n\n \n\nDelaware\n \n001-33642\n \n33-0368882\n\n(State or other jurisdiction\n\nof incorporation)\n \n(Commission File Number)\n \n(I.R.S. Employer\n\nIdentification No.)\n\n \n\n52 Discovery,\nIrvine, California\n92618\n\n(Address of principal executive offices, including zip code)\n\n \n\nRegistrant’s telephone number, including\narea code: (949) 297-7000\n\n \n\nNot Applicable\n\nFormer name or former address, if changed since last report\n\n \n\nCheck the appropriate box below if the Form 8-K filing is intended\nto simultaneously satisfy the filing obligation of the registrant under any of the following provisions:\n\n \n\n¨Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n  \n\n¨Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n  \n\n¨Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n  \n\n¨Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\n \n\nSecurities registered pursuant to Section 12(b) of the Act:\n\n \n\n**Title of each class**\n \n**Trading Symbol**\n \n**Name of each exchange on which registered**\n\nCommon Stock, $0.001 par value\n \nMASI\n \nThe Nasdaq Stock Market LLC\n\n \n\nIndicate by check mark whether the registrant is an emerging growth\ncompany as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange\nAct of 1934 (§240.12b-2 of this chapter).\n\n \n\nEmerging growth company ¨\n\n \n\nIf an emerging growth company, indicate by check mark if the registrant\nhas elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant\nto Section 13(a) of the Exchange Act. ¨\n\n \n\n \n\n \n\n \n\n \n\n \n\n**INTRODUCTORY NOTE**\n\n \n\nOn June 10, 2026 (the “Closing Date”),\nDanaher Corporation, a Delaware corporation (“Parent”), completed the previously announced acquisition of Masimo Corporation,\na Delaware corporation (the “Company”), pursuant to the Agreement and Plan of Merger, dated as of February 16, 2026\n(the “Merger Agreement”), by and among the Company, Parent, and Mobius Merger Sub, Inc., a Delaware corporation and\na wholly owned subsidiary of Parent (“Merger Sub”). Pursuant to the terms of the Merger Agreement, on the Closing Date,\nMerger Sub merged with and into the Company (the “Merger”), with the Company surviving as a wholly owned subsidiary\nof Parent (the “Surviving Corporation”).\n\n \n\nThe Merger Agreement and the transactions contemplated\nthereby, including the Merger, were previously described in the Current Report on Form 8-K filed with the Securities and Exchange Commission\n(the “SEC”) by the Company on February 17, 2026 and the definitive proxy statement filed with the SEC by the Company\non April 1, 2026 (the “Proxy Statement”)."}