Company: MTB-PJ
Filing Date: 2025-10-30
Form Type: 424B5
Source: 0001193125-25-257002
Chunk: 19

Company: M&T BANK CORP
Filing Date: 2025-10-30
Form: 424B5
Chunk 19
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S

We estimate that the net proceeds (before expenses) of this offering will be approximately $441,907,876.75. We intend to use the net
proceeds of this offering for general corporate purposes, which may include the redemption of existing preferred stock.

S-11

DESCRIPTION OF SERIES K PREFERRED STOCK

The following summary contains a description of the material terms of the Preferred Stock. The following summary of the terms and provisions of the Preferred Stock is qualified in its entirety by reference to the pertinent sections of our Restated Certificate of Incorporation, including theCertificateof Amendment creating the Preferred Stock and the applicable provisions of the New York Business Corporation Law and federal law governing bank holding companies.

General

The Preferred Stock represents a single series of our authorized preferred stock. We are offering depositary shares, representing 45,000 shares
of the Preferred Stock in the aggregate, by this prospectus supplement and the accompanying prospectus. Shares of the Preferred Stock, upon issuance against full payment of the purchase price for the depositary shares, will be validly issued, fully
paid and nonassessable. The depositary will be the sole holder of shares of the Preferred Stock. Holders of depositary shares will be required to exercise their proportional rights in the Preferred Stock through the depositary, as described in
“Description of the Depositary Shares.”

The Preferred Stock will rank, as to the payment of dividends and distribution of
assets upon our liquidation, dissolution, or winding-up, senior to our common stock and any other class or series of shares ranking junior to the Preferred Stock. The Preferred Stock will rank, as to
the payment of dividends and distribution of assets upon our liquidation, dissolution or winding-up, equally with any series of preferred stock ranking equal to the Preferred Stock. See
“Description of Our Capital Stock.” The Preferred Stock will be subordinate to our existing and future indebtedness.

The
Preferred Stock will not be convertible into, or exchangeable for, shares of any other class or series of our capital stock or other securities and will not be subject to any sinking fund or other obligation to redeem or repurchase the Preferred
Stock.

We may at any time and from time to time, without notice to or the consent of holders of the Preferred Stock, issue additional
shares of Preferred Stock and related depositary shares either through public or private sales, that would be deemed to form a single series with the shares of Preferred Stock and the related depositary shares, respectively, offered hereby, provided
that