X0508 4 2024-10-01 0001850119 Century Therapeutics, Inc. IPSC 0002039294 Cowan Chad C/O CENTURY THERAPEUTICS, INC. 25 N 38TH STREET, 11TH FLOOR PHILADELPHIA PA 19104 0 1 0 0 Chief Scientific Officer 0 Common Stock 2024-10-01 4 A 0 74376 0 A 210806 D Common Stock 10697 I By Trust Stock Option (right to buy) 1.65 2024-10-01 4 A 0 446250 0 A 2034-10-01 Common Stock 446250 446250 D Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Century Therapeutics, Inc.'s (the "Company's") common stock. The RSUs vest 25% on October 1, 2025, with the remaining 75% vesting on a quarterly basis for the three years thereafter, in each case subject the Reporting Person's continued service through the applicable vesting date. The RSUs will be settled on each applicable vesting date in shares of the Company's common stock. Shares held by the Cowan Investment Nominee Trust. The Reporting Person disclaims beneficial ownership except to the extent of any pecuniary interest therein, and this report shall not be deemed an admission that such shares are beneficially owned by him for Section 16 or any other purpose. The option vests 25% on October 1, 2025, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date. /s/ Douglas Carr, Attorney-in-Fact 2024-10-03