M&T Bank : Receives Approval From New York State Department of Financial Services and Connecticut Department of Banking for the Merger of M&T Bank and People's United Bank - Form 8-K

M&T Bank Corporation Receives Approval From New York State

Department of Financial Services and Connecticut Department of

Banking for the Merger of M&T Bank and People's United Bank

BUFFALO, N.Y., Oct. 21, 2021-M&T Bank Corporation (NYSE: MTB) ("M&T") announced today that it has received approval from the New York State Department of Financial Services and the Connecticut Department of Banking to complete the merger of M&T Bank with People's United Bank.

The combined bank will create a diversified, community-focused franchise that will provide customers and communities with access to an expanded network and an increased array of products and services.

The merger of M&T and People's United Financial, Inc. (NASDAQ: PBCT) ("People's United") was unanimously approved by the board of directors of each company and is subject to the satisfaction of other customary closing conditions, including approval from the Board of Governors of the Federal Reserve System for each of the holding company and bank mergers. Shareholders at both M&T and People's United approved the transaction on May 25, 2021 at their respective special meetings of shareholders.

About M&T Bank Corporation

M&T Bank Corporation is a financial holding company headquartered in Buffalo, New York. M&T's principal banking subsidiary, M&T Bank, operates banking offices in New York, Maryland, New Jersey, Pennsylvania, Delaware, Connecticut, Virginia, West Virginia and the District of Columbia. Trust-related services are provided by M&T's Wilmington Trust-affiliated companies and by M&T Bank.

M&T Bank has earned an "Outstanding" Community Reinvestment Act rating from the Federal Reserve Bank of New York since 1982, its highest ranking.

M&T Contacts:

Investors: Donald J. MacLeod, 716-842-5138

Media: Maya Dillon, 646-735-1958

Cautionary Note Regarding Forward-Looking Statements

This communication includes "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are based on current expectations, estimates and projections about M&T's businesses, beliefs of M&T's management and assumptions made by M&T's management. Any statement that does not describe historical or current facts is a forward-looking statement, including statements regarding the expected timing, completion and effects of the proposed transactions and M&T's and People's United's expected financial results, prospects, targets, goals and outlook. Forward-looking statements are typically identified by words such as "believe," "expect," "anticipate," "intend," "target," "estimate," "continue," "positions," "prospects" or "potential," by future conditional verbs such as "will," "would," "should," "could," or "may," or by variations of such words or by similar expressions. These statements are not guarantees of future performance and involve certain risks, uncertainties and assumptions ("future factors") which are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or forecasted in such forward-looking statements.

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In addition, the following factors, among others, related to the proposed transaction between M&T and People's United, could cause actual outcomes and results to differ materially from forward-looking statements or historical performance: the occurrence of any event, change or other circumstances that could give rise to the right of one or both of the parties to terminate the definitive merger agreement between M&T and People's United; the outcome of any legal proceedings that may be instituted against M&T or People's United; the possibility that the proposed transaction will not close when expected or at all because required regulatory or other approvals are not received or other conditions to the closing are not satisfied on a timely basis or at all, or are obtained subject to conditions that are not anticipated; the risk that any announcements relating to the proposed combination could have adverse effects on the market price of the common stock of either or both parties to the combination; the possibility that the anticipated benefits of the transaction will not be realized when expected or at all, including as a result of the impact of, or problems arising from, the integration of the two companies or as a result of the strength of the economy and competitive factors in the areas where M&T and People's United do business; certain restrictions during the pendency of the merger that may impact the parties' ability to pursue certain business opportunities or strategic transactions; the possibility that the transaction may be more expensive to complete than anticipated, including as a result of unexpected factors or events; diversion of management's attention from ongoing business operations and opportunities; potential adverse reactions or changes to business or employee relationships, including those resulting from the announcement or completion of the transaction; M&T's and People's United's success in executing their respective business plans and strategies and managing the risks involved in the foregoing; and other factors that may affect future results of M&T and People's United; the business, economic and political conditions in the markets in which the parties operate; the risk that the proposed combination and its announcement could have an adverse effect on either or both parties' ability to retain customers and retain or hire key personnel and maintain relationships with customers; the risk that the proposed combination may be more difficult or time-consuming than anticipated, including in areas such as sales force, cost containment, asset realization, systems integration and other key strategies; revenues following the proposed combination may be lower than expected, including for possible reasons such as unexpected costs, charges or expenses resulting from the transactions; the unforeseen risks relating to liabilities of M&T or People's United that may exist; and uncertainty as to the extent of the duration, scope, and impacts of the COVID-19 pandemic on M&T, People's United and the proposed combination.

These are representative of the future factors that could affect the outcome of the forward-looking statements. In addition, such statements could be affected by general industry and market conditions and growth rates, general economic and political conditions, either nationally or in the states in which M&T, People's United or their respective subsidiaries do business, including interest rate and currency exchange rate fluctuations, changes and trends in the securities markets, and other future factors.

M&T provides further detail regarding these risks and uncertainties in its latest Form 10-K and subsequent Form 10-Qs, including in the respective Risk Factors sections of such reports, as well as in subsequent SEC filings. Forward-looking statements speak only as of the date made, and M&T does not assume any duty and does not undertake to update forward-looking statements.

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