On November 27, 2023, Stephen H. Wise informed the board of directors of QuidelOrtho Corporation of his intent to resign from the Board and as a member of its Nominating and Corporate Governance Committee, effective upon the election of James R. Prutow as a director, which occurred on November 28, 2023. Mr. Wise's decision to resign from the Board was due to other professional commitments and was not the result of any dispute or disagreement with the Company on any matter relating to the Company's operations, policies or practices. On November 28, 2023, the Board elected Mr. Prutow as a director, effective immediately.

He qualifies as an independent director" under the applicable rules of The Nasdaq Stock Market LLC. It is currently anticipated that the Board will appoint Mr. Prutow as a member of the Nominating and Corporate Governance Committee and the Science and Technology Committee.