X0306 4 2018-10-22 1 0001116463 ORASURE TECHNOLOGIES INC OSUR 0001209784 KUNA MARK L 220 EAST FIRST STREET BETHLEHEM PA 18015 0 1 0 0 See Remarks Common Stock 2018-10-22 4 F 0 2907 14.81 D 46306 D Common Stock 2018-10-22 4 F 0 2543 14.81 D 43763 D Common Stock 2018-10-22 4 F 0 1989 14.81 D 41774 D Common Stock 2018-10-22 4 A 0 15048 14.81 A 56822 D Common Stock 2018-10-22 4 F 0 6542 14.81 D 50280 D Common Stock 2018-10-22 4 A 0 15047 14.81 A 65327 D Common Stock 2018-10-22 4 F 0 6542 14.81 D 58785 D Common Stock 2018-10-22 4 A 0 4388 14.81 A 63173 D Common Stock 2018-10-22 4 F 0 1907 14.81 D 61266 D Common Stock 2018-10-22 4 A 0 8777 14.81 A 70043 D Common Stock 2018-10-22 4 F 0 3816 14.81 D 66227 D Common Stock 2018-10-22 4 A 0 1716 14.81 A 67943 D Common Stock 2018-10-22 4 F 0 746 14.81 D 67197 D Common Stock 2018-10-22 4 A 0 1716 14.81 A 68913 D Common Stock 2018-10-22 4 F 0 746 14.81 D 68167 D Withholding of shares to pay tax liability associated with the vesting of restricted shares. Shares delivered in settlement of vested performance units that did not constitute a derivative security. Withholding of shares to pay tax liability associated with the vesting and settlement of performance units. Senior Vice President and Contoller /s/ Jack E. Jerrett Attorney-in-Fact For Mark L. Kuna 2018-10-24