IPSC · Century Therapeutics, Inc.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The option vests on the earlier of (a) June 11, 2027, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

The option vests on the earlier of (a) June 11, 2027, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

The option vests on the earlier of (a) June 11, 2027, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

The option vests on the earlier of (a) June 11, 2027, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

The option vests on the earlier of (a) June 11, 2027, or (b) the next annual meeting of stockholders, in each case subject to the Reporting Person's continued service through the applicable vesting date.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on February 2, 2027, 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 Issuer's common stock.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on February 2, 2027, 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 Issuer's common stock.

The option vests 25% on February 2, 2027, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date.

The option vests 25% on February 2, 2027, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on February 2, 2027, 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 Issuer's common stock.

The option vests 25% on February 2, 2027, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 25% on February 2, 2027, 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 Issuer's common stock.

The option vests 25% on February 2, 2027, with the remaining 75% vesting in 36 equal monthly installments, subject to the Reporting Person's continued service through each applicable vesting date.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

All profits from the reported transactions will be disgorged to the issuer pursuant to applicable requirements.

All profits from the reported transactions will be disgorged to the issuer pursuant to applicable requirements.

The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.577 to $0.5838. Full information regarding the number of shares purchased at each separate price can be furnished to the SEC staff upon request.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Century Therapeutics, Inc. (the "Company") issued to the Reporting Person stock options (the "Options") in connection with his appointment as a director. The Options vest in equal monthly installments over 36 months subject to the Reporting Person's continued service to the Company and are issued pursuant to the Company's 2021 Equity Incentive Plan.

Century Therapeutics, Inc. (the "Company") issued to the Reporting Person stock options (the "Options") in connection with his appointment as a director. The Options vest in equal monthly installments over 36 months subject to the Reporting Person's continued service to the Company and are issued pursuant to the Company's 2021 Equity Incentive Plan.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

All profits from the reported transactions will be disgorged to the issuer pursuant to applicable requirements.

The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $0.488 to $0.5005. Full information regarding the number of shares purchased at each separate price can be furnished to the SEC staff upon request.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

Reflects the grant of restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs vest 50% on October 1, 2026, with the remaining 50% vesting on October 1, 2027, 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 Issuer's common stock.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.

The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.