Company: MTB-PJ
Filing Date: 2025-10-30
Form Type: 424B5
Source: 0001193125-25-257002
Chunk: 7

Company: M&T BANK CORP
Filing Date: 2025-10-30
Form: 424B5
Chunk 7
---
 contain all of the information that you should consider before investing in the depositary shares and the Preferred Stock. You should read this entire prospectus supplement, including the “Risk Factors” section and “Item 1A – Risk Factors” of our Annual Report on Form 10-K forthe year ended December 31, 2024, as well as the documents incorporated by reference herein, carefully before making an investment decision.

M&T Bank Corporation

M&T is a New York business corporation which is registered as a financial holding company under the Bank Holding Company Act of 1956, as
amended, and as a bank holding company under Article III-A of the New York Banking Law. The principal executive offices of M&T are located at One M&T Plaza, Buffalo, New York 14203. Its
telephone number is (716) 635-4000. M&T was incorporated in November 1969. As of September 30, 2025, we had consolidated total assets of $211.3 billion, deposits of $163.4 billion
and shareholders’ equity of $28.7 billion. We had 22,383 full-time equivalent employees as of September 30, 2025.

M&T
has two wholly owned bank subsidiaries: M&T Bank and Wilmington Trust, N.A. The banks collectively offer a wide range of retail and commercial banking, trust and wealth management, and investment services to their customers. As of
December 31, 2024, M&T Bank represented 99% of consolidated assets of M&T and had 955 domestic banking offices primarily located in the Northeastern and Mid-Atlantic regions of the U.S., including
the District of Columbia, and a full-service commercial banking office in Ontario, Canada. As a commercial bank, M&T Bank offers a broad range of financial services to a diverse base of consumers, businesses, professional clients, governmental
entities and financial institutions located in its markets.

S-1

SUMMARY OF THE OFFERING The following summary contains basic information about the depositary shares and this offering and is not intended to be complete. It does not contain all the information that is important to you. For a complete understanding of the depositary shares and the Preferred Stock, you should read “Description of the Depositary Shares” and “Description of Series K Preferred Stock” in this prospectus supplement. Investors should review the information in the section of this prospectus supplement entitled “Description of Our Capital Stock” for additional information regarding our common stock and our other