Company: MTB-PJ
Filing Date: 2025-10-30
Form Type: 424B5
Source: 0001193125-25-257002
Chunk: 65

Company: M&T BANK CORP
Filing Date: 2025-10-30
Form: 424B5
Chunk 65
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 or will be filed with or approved by any Swiss regulatory authority. The depositary shares and Preferred Stock are not subject to the supervision by any Swiss regulatory authority, e.g., the Swiss Financial
Markets Supervisory Authority FINMA, and investors in the depositary shares or Preferred Stock will not benefit from protection or supervision by such authority.

Notice to Prospective Investors in Canada

The depositary shares may be sold only to Canadian purchasers purchasing, or deemed to be purchasing, as principal, that are accredited
investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the depositary shares must be made in accordance with an exemption from, or in a transaction not
subject to, the prospectus requirements of applicable Canadian securities laws.

Securities legislation in certain provinces or
territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by
the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or
territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (“NI 33-105”), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

Conflicts of Interest

Because M&T Securities, Inc., an underwriter for this offering, is M&T’s wholly owned subsidiary, a conflict of
interest under FINRA Rule 5121 is deemed to exist. Accordingly, this offering will be conducted in accordance with this rule. Pursuant to FINRA Rule 5121, M&T Securities, Inc. will not confirm sales to any account over which it exercises
discretionary authority without the specific prior written approval of the account holder.

S-41

VALIDITY OF SECURITIES

The validity of the depositary shares and Preferred Stock will be passed upon for M&T by Squire Patton Boggs (US) LLP, and for the
underwriters by Sullivan &