Company: MTB-PJ
Filing Date: 2025-10-30
Form Type: 424B5
Source: 0001193125-25-257002
Chunk: 51

Company: M&T BANK CORP
Filing Date: 2025-10-30
Form: 424B5
Chunk 51
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ary shares. If dividends paid to you are “effectively connected” with your conduct of a trade or business within the United States, and, if required by a tax treaty, the dividends are attributable to a permanent establishment that you maintain in the United States, we and other payors generally are not required to withhold tax from the dividends, provided that you have furnished to us or another payor a valid IRS Form W-8ECI oran acceptable substitute form upon which you represent, under penalties of perjury, that:

| • |     | you are not a U.S. person; and |

| • |     | the dividends are effectively connected with your conduct of a trade or business within the United States and are 
 includible in your gross income.                                                                                  |

“Effectively connected” dividends are taxed at the applicable U.S. federal income tax rates in the same manner as if such non-U.S. holderwere a U.S. person. If you are a corporate Non-U.S. holder,“effectively S-32

connected” dividends that you receive may, under certain circumstances, be subject to an additional “branch profits tax” at a 30% rate or at a lower rate if you are eligible for the benefits of an income tax treaty that provides for a lower rate. Sale, Exchange or Certain other Taxable Dispositions of the Depositary Shares If you are a Non-U.S. holder,you generally will not be subject to U.S. federal income tax on gain that you recognize on a disposition of depositary shares unless:

| • |     | the gain is “effectively connected” with your conduct of a trade or business in the United States,                                                                                                                                 
 and the gain is attributable to a permanent establishment that you maintain in the United States, if that is required by an applicable income tax treaty as a condition for subjecting you to U.S. taxation on a net income basis; |

| • |     | you are an individual, you hold the depositary shares as a capital asset, you are present in the United States 
 for 183 or more days in the taxable year of the sale and certain other conditions are met; or                  |

Gain described in the first bullet point above will be subject to U.S. federal income tax on a net income basis at the regular applicable U.S. federal income tax rates in the same manner as if such non-U.S. holderwere a U.S. person. A non-U.S. holderthat is a corporation may, under certain circumstances be subject to