144 0002029274 XXXXXXXX LIVE 0002005951 Smurfit Westrock plc 001-42161 Beech Hill Clonskeagh Dublin 4 L2 D04N2R2 353-1-2027000 Laurent Sellier Officer Ordinary Shares Societe Generale-agence

Turgot 2 et 6 rue Turgot Limoges I0 87000

5685 288912.00 524256236 02/18/2026 NYSE Ordinary Shares Davy Group

49 Dawson Street Dublin 2 L2 D02 PY05

9877 501949.00 524256236 02/18/2026 LSE Ordinary Shares 12/16/2016 Reinvestment of dividend Smurfit Westrock PLC N 426 12/16/2016 N/A Ordinary Shares 12/19/2017 Reinvestment of dividend Smurfit Westrock PLC N 168 12/19/2017 N/A Ordinary Shares 12/19/2018 Reinvestment of dividend Smurfit Westrock PLC N 305 12/19/2018 N/A Ordinary Shares 12/09/2019 Reinvestment of dividend Smurfit Westrock PLC N 216 12/09/2019 N/A Ordinary Shares 02/18/2020 Vesting of equity awards Smurfit Westrock PLC N 7733 02/18/2020 Services rendered Ordinary Shares 11/20/2020 Open market purchase Smurfit Westrock PLC N 1029 11/20/2020 Cash Ordinary Shares 01/20/2022 Open market purchase Smurfit Westrock PLC N 5685 01/20/2022 Cash Y 02/18/2026 /s/ Laurent Sellier, by Ciara O'Riordan as attorney-in-fact