X0508 4 2026-02-10 0000920148 LABCORP HOLDINGS INC. LH 0001805303 Summy Amy B. 531 SOUTH SPRING STREET BURLINGTON NC 27215 1 EVP, Chief Marketing Officer 0 Non-qualified Stock Options 284.50 2026-02-10 4 A 0 1900 0 A 2027-02-10 2036-02-09 Common Stock 1900 1900 D Restricted Stock Unit 2026-02-10 4 A 0 620 0 A Common Stock 620 1534 D Employee stock option (right to buy) granted pursuant to the Labcorp Holdings Inc. 2025 Omnibus Incentive Plan. The option vests in three equal annual installments beginning on the date reflected in this column. Each Restricted Stock Unit represents the contingent right to receive one share of Labcorp Holdings Inc. Common Stock. The Restricted Stock Units vest in three equal annual installments beginning on February 10, 2027. This number reflects the aggregate number of Restricted Stock Units held by the reporting person. /s/ Kathryn W. Kyle, Attorney-in-Fact for Amy B. Summy 2026-02-12