Tranche Update on QuidelOrtho Corporation's Equity Buyback Plan announced on August 17, 2022.

QuidelOrtho Corporation is engaged in vitro diagnostics, developing and manufacturing intelligent solutions. The Company sells its products directly to end users through a direct sales force and through a network of distributors, for professional use in physician offices, hospitals, clinical laboratories, reference laboratories, urgent care clinics, universities, retail clinics, pharmacies, wellness screening centers, other point-of-care (POC) settings, blood banks and donor centers, as well as for individual, non-professional, over the counter (OTC) use. The Company provides diagnostic testing solutions under various brand names, including AdenoPlus, BIOVUE, FreshCells, InflammaDry, Lyra, MeterPro, MicroVue, Ortho, Ortho Clinical Diagnostics, Ortho Connect, Ortho Plus, Ortho Vision, QuickVue, Quidel, QuidelOrtho, QVue, Savanna, Sofia, Solana, Thyretain, Triage, Virena, Vitros among others. It provides support for its customers across more than 130 countries and territories.