X0508 4 2025-02-14 0002005951 Smurfit Westrock plc SW 0002029261 Fairweather Carol BEECH HILL CLONSKEAGH DUBLIN 4 L2 D04N2R2 IRELAND 1 0 0 0 0 Ordinary Shares 2025-02-14 4 F 0 1003 54.65 D 4116 D Reflects ordinary shares of Smurfit Westrock plc withheld to satisfy the Reporting Persons tax withholding obligation upon vesting and settlement of restricted stock units (RSUs). Each RSU represents a contingent right to receive one ordinary share of Smurfit Westrock plc /s/ Ciara O'Riordan, attorney-in-fact for Carol Fairweather 2025-02-18