X0407 4 2023-05-27 0 0001906324 QuidelOrtho Corp QDEL 0001436707 Smith Christopher M 9975 SUMMERS RIDGE ROAD SAN DIEGO CA 92121 1 0 0 0 0 Common Stock 2023-05-27 4 F 0 1225 85.54 D 33329 D Disposition of shares, as set forth above, was in connection with the Issuer's withholding of common shares to satisfy tax withholding obligations related to the vesting of previously granted restricted stock awards. /s/ Phillip S. Askim, attorney-in-fact for Christopher M. Smith 2023-05-31