144 0001250506 XXXXXXXX LIVE 0000036270 M&T Bank Corporation 001-09861 One M&T Plaza Buffalo NY 14203 716-635-4000 John P. Barnes Director Common Stock J.P. Morgan Securities LLC

390 Madison Avenue 6th Floor New York NY 10017

17094 3651791 165921158 11/21/2024 NYSE Common Stock 11/15/2022 Transfer John P. Barnes N 17094 11/15/2022 N/A N The John P. Barnes Living Trust

C/o M&T Bank Corporation One M&T Plaza Buffalo NY 14203

Common Stock 10/22/2024 20000 3879400 The shares filed today will be sold by the John P. Barnes Living Trust, John P. Barnes as Trustee 11/21/2024 /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for John P. Barnes