X0609 4 2026-10-01 0 0001653242 Bank of N.T. Butterfield & Son Ltd NTB NTB.BH 0001232066 CUMMINGS STEPHEN E true 65 FRONT STREET HAMILTON D0 HM 12 BERMUDA 1 0 0 0 0 Ordinary shares 2026-10-01 2026-10-01 4 A 0 1178 59.42 A 1178 D /s/ Tara Hidalgo, by power of attorney for Stephen Cummings 2026-10-05