On June 30, 2023, Dr. Thomas Lee resigned from his position as Aptorum Group Limited's Head of Research and Development, due to personal reasons. Dr. Lee's resignation is not as a result of any disagreement with the Company relating to its operations, policies or practices. The Board is grateful for his significant contribution to the Company over the years.

Commencing from August 2023, Dr. Owen Ko will join as Research & Development Senior Consultant to the Company. Dr. Ko holds Bachelor of Medical Sciences (BMedSci, 1st class) and Bachelor of Medicine and Bachelor of Surgery (MBChB) from the Chinese University of Hong Kong. He pursued his PhD in neuroscience under the supervision of Professor Thomas Mrsic-Flogel at University College London in the UK and won the runner-up award of the 2014 Eppendorf & Science Prize for Neurobiology based on his PhD works.

Dr. Ko also serves as a principal investigator at the Gerald Choa Neuroscience Institute and the Li Ka Shing Institute of Health Sciences of the Chinese University of Hong Kong. Dr. Ko has won numerous science awards over the years including but not limited to also the Croucher Innovation Award in 2020.