{"url_path":"/sec/sem/8-k/2026-07-01/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-07-01","source_url":"https://www.sec.gov/Archives/edgar/data/1320414/0001104659-26-079643-index.html","accession_number":"0001104659-26-079643","cik":"0001320414","ticker":"SEM","issuer_name":"SELECT MEDICAL HOLDINGS CORP","edgar_url":"https://www.sec.gov/Archives/edgar/data/1320414/0001104659-26-079643-index.html","primary_entity_key":"0001320414","primary_entity_name":"SELECT MEDICAL HOLDINGS CORP"},"word_count":507,"has_tables":true,"body_markdown":"false\n--12-31\n0001320414\n\n0001320414\n\n2026-06-30\n2026-06-30\n\niso4217:USD\n\nxbrli:shares\n\niso4217:USD\n\nxbrli:shares\n\n** **\n\n \n\n****\n\n \n\n**UNITED STATES**\n\n**SECURITIES AND EXCHANGE COMMISSION**\n\n**Washington, DC 20549**\n\n \n\n \n\n \n\n**FORM 8-K**\n\n \n\n**current\nreport**\n\n \n\n**Pursuant to Section 13\nor 15(d) of the**\n\n** **\n\n**Securities Exchange\nAct of 1934**\n\n \n\n**Date of Report (Date\nof earliest event reported): June 30, 2026**\n\n \n\n \n\n \n\n**SELECT\nMEDICAL HOLDINGS CORPORATION**\n\n \n\n(Exact name of registrant\nas specified in its charter)\n\n \n\nDelaware \n001-34465 \n20-1764048\n\n(State or other jurisdiction of\nIncorporation) \n(Commission File\nNumber) \n(I.R.S. Employer\nIdentification No.)\n\n \n\n \n\n \n\n**4714 Gettysburg Road, P.O. Box 2034**\n\n**Mechanicsburg, PA 17055**\n\n(Address of principal executive offices)  (Zip Code)\n\n \n\n**(717) 972-1100**\n\n(Registrant’s telephone number, including\narea code)\n\n \n\nSecurities registered pursuant to Section\n12(b) of the Act:\n\n \n\nTitle of each class\nTrading Symbol(s)\nName of each exchange on which registered\n\nCommon Stock, par value $0.001 per share\nSEM\nNew York Stock Exchange (NYSE)\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\nSecurities Act (17 CFR 230.425)\n\n \n\n¨Soliciting material pursuant to Rule 14a-12 under the\nExchange Act (17 CFR 240.14a-12)\n\n \n\n¨Pre-commencement communications pursuant to Rule 14d-2(b)\nunder the Exchange Act (17 CFR 240.14d-2(b))\n\n \n\n¨Pre-commencement communications pursuant to Rule 13e-4(c)\nunder the Exchange Act (17 CFR 240.13e-4(c))\n\n \n\nIndicate by check mark whether either registrant is an emerging\ngrowth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities\nExchange Act 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 either registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards\nprovided pursuant to 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\nJune 30, 2026 (the “Closing Date”), Stallion MergerSub Corporation (“Merger Sub”), a Delaware corporation\nand wholly owned subsidiary of Stallion Intermediate Corporation (“Parent”), a Delaware corporation, announced the\nconsummation of the transactions contemplated by the previously announced Agreement and Plan of Merger, dated as of March 2, 2026 (the\n“Merger Agreement”), by and among Select Medical Holdings Corporation (the “Company”), a Delaware\ncorporation, Merger Sub and Parent. On the Closing Date, Merger Sub filed the Certificate of Merger with the Secretary of State of the\nState of Delaware, pursuant to which, effective as of 12:01 a.m. on July 1, 2026, (the “Effective Time”), Merger Sub\nmerged with an into the Company, with the Company continuing as the surviving company (the “Merger”). As a result of\nthe Merger, the Company became an indirect subsidiary of Parent.\n\n \n\nThe\ndescription of the Merger Agreement and the transactions contemplated by the Merger Agreement (including, without limitation, the Merger)\nin this Current Report on Form 8-K (this “Current Report”) does not purport to be complete and is subject to and qualified\nin its entirety by reference to the full text of the Merger Agreement, a copy of which is attached hereto as Exhibit 2.1 and incorporated\nherein by reference."}