On June 13, 2023, Michael R. Foley, M.D., notified Sera Prognostics, Inc. of his intention to resign from the position of Chief Medical Officer of the Company, effective as of June 30, 2023, and has moved to a consulting role. Effective July 1, 2023, the Company entered into a consulting agreement (the Consulting Agreement") with Dr. Foley, pursuant to which Dr. Foley agreed to provide certain consulting services to the Company upon its request in exchange for payment of $500 per hour, up to 12 hours per week, and continued vesting of his equity awards pursuant to their terms during the term of the Consulting Agreement.