X0306 4 2022-11-01 0000920148 LABORATORY CORP OF AMERICA HOLDINGS LH 0001222831 EISENBERG GLENN A 531 SOUTH SPRING STREET BURLINGTON NC 27215 1 Chief Financial Officer, EVP Common Stock 2022-11-01 4 M 0 12032 A 39190 D Common Stock 2022-11-01 4 F 0 5348 222.56 D 33842 D Performance Share Unit 2022-11-01 4 A 0 9170 0 A 2024-05-10 Common Stock 9170 9170 D Restricted Stock Unit 2022-11-01 4 A 0 9170 0 A Common Stock 9170 25876 D Restricted Stock Unit 2022-11-01 4 M 0 12032 0 D Common Stock 12032 13844 D Each Restricted Stock Unit represents the contingent right to receive one share of Laboratory Corporation of America Holdings Common Stock. Stock withholding to satisfy tax withholding obligations. Performance Share Unit granted pursuant to the Laboratory Corporation of America Holdings 2016 Omnibus Incentive Plan. Each Performance Share Unit represents the contingent right to receive one share of Laboratory Corporation of America Holdings Common Stock. The Performance Share Units vest in full upon the filing of the Company's Quarterly Report on Form 10-Q for the first quarter of 2024, subject to both continued service and a performance condition related to the Issuer's contemplated spin-off transaction. The Restricted Stock Units vest in full on April 15, 2024. The Restricted Stock Units that have vested were part of a grant that vested in three installments as follows: 30% of the Restricted Stock Units vested on November 1, 2020; 30% of the Restricted Stock Units vested on November 1, 2021; and 40% of the Restricted Stock Units vested on November 1, 2022, with the third installment subject to a relative total shareholder return ("TSR") modifier that could have adjusted the third installment of the Restricted Stock Units upward or downward 25% based on our three-year cumulative relative TSR but ultimately did not result in an adjustment. This number reflects the aggregate number of Restricted Stock Units held by the reporting person. /s/ Sandra D. van der Vaart, Attorney-in-Fact for Glenn A. Eisenberg 2022-11-03