Sera Prognostics, Inc. announced the retirement of the Company's President and CEO, Gregory C. Critchfield, M.D., M.S. Dr. Critchfield is retiring after 12 years of dedicated and valuable service to the Company. Dr. Critchfield plans to step down from his executive role effective June 8, 2023, to pursue other activities. Zhenya Lindgardt, a member of the Company's Board of Directors, will succeed Dr. Critchfield, as Interim CEO & President.

Kim Kamdar, Ph.D., a member of the Board, has been appointed as Chair of the Board. Dr. Critchfield continues his service as a member of the Board. Ms. Lindgardt currently serves as Chief Executive Officer of The Commons Project Foundation, a non-profit public trust established with support from the Rockefeller Foundation.

Previously, Ms. Lindgardt served as Vice President of Platform and Customer Engagement of the Executive Team at Uber Technologies Inc., a publicly traded mobility, transportation and delivery solutions company. Prior to that role, Ms. Lindgardt served in a variety of positions, including as a Senior Partner and Managing Director for 19 years with The Boston Consulting Group, a global consulting company.