X0306 4 2016-02-11 0000920148 LABORATORY CORP OF AMERICA HOLDINGS LH 0001620889 Dodson Edward T 213 MAPLE AVENUE BURLINGTON NC 27215 1 Principal Accounting Officer Common Stock 2016-02-11 4 M 0 550 A 7343.5646 D Common Stock 2016-02-11 4 F 0 212 101.40 D 7131.5646 D Common Stock 2016-02-12 4 M 0 547 A 7678.5646 D Common Stock 2016-02-12 4 F 0 182 103.02 D 7496.5646 D Restricted Stock Unit 2016-02-11 4 M 0 550 0 D Common Stock 550 3647 D Restricted Stock Unit 2016-02-12 4 M 0 547 0 D Common Stock 547 3100 D Each Restricted Stock Unit represents the contingent right to receive one share of Laboratory Corporation of America Holdings Common Stock. Amount includes 157.3293 shares acquired on June 30, 2015 and 61.6766 shares acquired on December 31, 2015 under the Laboratory Corporation of America Holdings 1997 Employee Stock Purchase Plan. Stock withholding to satisfy tax withholding obligations. The Restricted Stock Units vest in three equal annual installments beginning on 2/11/15. This number reflects the aggregate number of Restricted Stock Units held by the reporting person. The Restricted Stock Units vest in three equal annual installments beginning on 2/12/14. /s/ F. Samuel Eberts III, Attorney-in-Fact for Edward T. Dodson 2016-02-16