X0306 4 2023-02-23 0 0001906324 QuidelOrtho Corp QDEL 0001406652 BRYANT DOUGLAS C 9975 SUMMERS RIDGE ROAD SAN DIEGO CA 92121 1 1 0 0 President & CEO Common Stock 2023-02-23 4 A 0 15180 0.00 A 542070 D Common Stock 2023-02-23 4 F 0 7527 88.71 D 534543 D Reporting Person acquired these shares in connection with full achievement of performance metrics associated with performance-based restricted stock units awarded on February 3, 2020. 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 issuance of common shares upon release of performance-based restricted stock units. /s/ Phillip S. Askim, attorney-in-fact for Douglas C. Bryant 2023-02-27