X0306 4 2022-05-27 0 0001906324 QuidelOrtho Corp QDEL 0001839432 Iskra Michael S. 9975 SUMMERS RIDGE ROAD SAN DIEGO CA 92121 0 1 0 0 Chief Commercial Officer Stock Options 59.53 2022-05-27 4 A 0 22020 0.00 A 2025-12-21 Common Stock 22020 22020 D Stock Options 119.06 2022-05-27 4 A 0 16809 0.00 A 2024-05-27 Common Stock 16809 16809 D Restricted Stock Units 2022-05-27 4 A 0 15825 0.00 A Common Stock 15825 15825 D Pursuant to the Business Combination Agreement, dated as of December 22, 2021 (the "Business Combination Agreement") by and among Quidel Corporation, Ortho Clinical Diagnostics Holdings plc ("Ortho"), QuidelOrtho Corporation ("QuidelOrtho"), Orca Holdco, Inc., Laguna Merger Sub, Inc. and Orca Holdco 2, Inc., each Ortho stock option was converted into a Stock Option to purchase shares of common stock of QuidelOrtho on the same terms and conditions (including applicable vesting conditions), except as adjusted by the Business Combination Agreement. Vested in full. 9,804 shares are vested in full; 7,005 shares will vest on July 1, 2022. Each restricted stock unit represents the right to receive one share of QuidelOrtho common stock. Pursuant to the Business Combination Agreement, each Ortho restricted stock unit was converted into a restricted stock unit representing the right to receive shares of common stock of QuidelOrtho on the same terms and conditions (including applicable vesting conditions), except as adjusted by the Business Combination Agreement. 15,825 shares will vest on April 1, 2023. /s/ Phillip S. Askim, attorney-in-fact for Michael S. Iskra 2022-06-01