SCHEDULE 13G

Century Therapeutics, Inc.

Common Stock, par value $0.0001 per share · CUSIP: 15673T100

Event date: 2026-01-09

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• TCG Crossover GP II, LLC

  Shares: 8,877,215 · Class: 4.9%

• TCG Crossover Fund II, L.P.

  Shares: 8,877,215 · Class: 4.9%

• TCG Crossover GP III, LLC

  Shares: 8,877,215 · Class: 4.9%

• TCG Crossover Fund III, L.P.

  Shares: 8,877,215 · Class: 4.9%

• Chen Yu

  Shares: 17,754,430 · Class: 9.9%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.