{"url_path":"/sec/dgx/8-k/2026-01-12/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-01-12","source_url":"https://www.sec.gov/Archives/edgar/data/1022079/0000947871-26-000025-index.html","accession_number":"0000947871-26-000025","cik":"0001022079","ticker":"DGX","issuer_name":"QUEST DIAGNOSTICS INC","edgar_url":"https://www.sec.gov/Archives/edgar/data/1022079/0000947871-26-000025-index.html","primary_entity_key":"0001022079","primary_entity_name":"QUEST DIAGNOSTICS INC"},"word_count":300,"has_tables":true,"body_markdown":"false\n0001022079\n\n0001022079\n\n2026-01-12\n2026-01-12\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n \n\n \n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWASHINGTON, DC 20549\n\n \n\n \n\n**FORM 8-K**\n\n \n\n \n\n**CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)\nOF**\n\n**THE SECURITIES EXCHANGE ACT OF 1934**\n\n \n\n**Date of Report**(Date of Earliest\nEvent Reported)**: January 12, 2026**\n\n \n\n**Quest Diagnostics Incorporated**\n\n(Exact Name of Registrant as Specified in\nIts Charter)\n\n \n\n**Delaware**\n\n(State or other jurisdiction of incorporation)\n\n**001-12215**\n \n \n**16-1387862**\n\n(Commission File Number)\n \n \n(I.R.S. Employer Identification No.)\n\n \n \n \n \n \n\n**500 Plaza Drive**\n \n \n \n\n**Secaucus,**\n**NJ**\n \n \n**07094**\n\n(Address of principal executive offices)\n \n \n(Zip Code)\n\n \n \n \n \n \n\n \n \n**(973)**\n**520-2700**\n \n\n(Registrant's telephone number, including area code)\n\n \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 (see General Instruction\nA.2. below):\n\n \n\n☐\nWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n☐\nSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n☐\nPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n☐\nPre-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\nTitle of each class\nTrading Symbol(s)\nName of each exchange on which registered\n\nCommon Stock, $0.01 Par Value\nDGX\nNew York Stock Exchange\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\nEmerging growth\ncompany ☐\n\n \n\nIf an emerging growth company, indicate\nby check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial\naccounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐"}