LABCORP HOLDINGS INC. 10-Q

ITEM 5. OTHER INFORMATION Insider Adoption or Termination of Trading Arrangements: During the fiscal quarter ended September 30, 2025, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K . 34 TABLE OF CONTENTS ITEM 6. EXHIBITS (a) 22.1* Subsidiary Issuers of Guaranteed Securities 31.1* Certification by the Chief Executive Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) 31.2* Certification by the Chief Financial Officer pursuant to Rule 13a-14(a) or Rule 15d-14(a) 32** Written Statement of Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350) 101.INS* Inline XBRL Instance Document - The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. 101.SCH* Inline XBRL Taxonomy Extension Schema 101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase 101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase 101.LAB* Inline XBRL Taxonomy Extension Label Linkbase 101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase 104 Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101) * filed herewith ** furnished herewith 35 TABLE OF CONTENTS SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. LABCORP HOLDINGS INC. Registrant By: /s/ ADAM H. SCHECHTER Adam H. Schechter President and Chief Executive Officer (Principal Executive Officer) By: /s/ JULIA A. WANG Julia A. Wang Executive Vice President and Chief Financial Officer (Principal Financial Officer) Dated: October 31, 2025 36