X0306 4 2022-05-27 0 0001906324 QuidelOrtho Corp QDEL 0001391387 Dilsaver Evelyn S 9975 SUMMERS RIDGE ROAD SAN DIEGO CA 92121 1 0 0 0 Common Stock 2022-05-27 4 A 0 274 A 274 D Restricted Stock Units 2022-05-27 4 A 0 275 0.00 A Common Stock 275 275 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 ordinary share of Ortho beneficially owned by the Reporting Person at the effective time of the transaction contemplated by the Business Combination Agreement was exchanged for (i) 0.1055 shares of common stock of QuidelOrtho and (ii) $7.14 in cash. 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. 204 shares will vest in equal installments on June 30, 2022, September 30, 2022 and December 31, 2022; the remaining 71 shares will vest on March 31, 2023. /s/ Phillip S. Askim, attorney-in-fact for Evelyn Dilsaver 2022-06-01