On December 9, 2025, the Board of Directors of Century Therapeutics, Inc. (Company), upon the recommendation of the Nominating and Corporate Governance Committee of the Board, increased its size from six to eight directors and appointed Dr. Martin Murphy, Ph.D. and Dr. Han Lee, Ph.D., M.B.A. as directors of the Board, effective as of December 9, 2025 (Effective date). Dr. Murphy will serve as a Class III director with a term expiring at the 2027 Annual Meeting of Stockholders, or until his successor is duly elected and qualified or until his earlier resignation, death or removal, and Dr. Lee will serve as a Class II director with a term expiring at the 2026 Annual Meeting of Stockholders, or until his successor is duly elected and qualified or until his earlier resignation, death or removal. Dr. Murphy will serve as a member of the Compensation and Nominating and Corporate Governance Committees of the Board and Dr. Lee will serve as member of the Compensation and Audit Committees of the Board.

Dr. Murphy, 56, currently holds various board chair and director positions on several UK-based organizations including Synairgen plc, Cora Biosciences Limited and Legal & General UK Universities Ventures LP. Previously, Dr. Murphy served as co-founder of Syncona Limited and Chief Executive Officer and Investment Committee Chair of Syncona Investment Management Limited, or Syncona from October 2012 to November 2022. Prior to Syncona, Dr. Murphy served as a Managing Director of MVM Life Science Partners LLP from 2002 to 2012.

Dr. Murphy also previously served on the board of Autolus Therapeutics plc from October 2013 to June 2024 and was a member of the Science Committee and Remuneration Committee during his tenure. Earlier in his career, Dr. Murphy was an Investment Manager at 3i Group plc from 2001 to 2002 and an Engagement Manager at McKinsey & Company from 1996 to 1999. Dr. Murphy received a Ph.D. from the University of Cambridge?s Emmanual College, and an M.A. in Biochemistry from the University of Oxford.

Dr. Lee, 45, most recently served as President and Chief Financial Officer of ImmPACT Bio, Inc., or ImmPACT from October 2023 until October 2024. Prior to ImmPACT, Dr. Lee served as Chief Financial Officer of Neogene Therapeutics, Inc., or Neogene from August 2021 to August 2023. Prior to Neogene, Dr. Lee served as the Chief Financial Officer of Arcellx, Inc. from June 2018 to July 2021.

Earlier in his career, Dr. Lee served as the Senior Director of Corporate Development and Ventures at AstraZeneca plc from 2014 to 2018. Dr. Lee received a Ph.D. in Genetics from Yale University, an M.B.A. from Yale University and a Bachelor of Arts in Molecular Cell Biology (Genetics Emphasis) and a minor in Chemistry from the University of California, Berkeley.