BUFFALO, N.Y., Nov 21, 2005 /PRNewswire-FirstCall via COMTEX News Network/ -- M&T Bank Corporation ("M&T") (NYSE: MTB) announced that it has been authorized by its Board of Directors to purchase and hold as treasury stock up to five million additional shares of its common stock. This represents approximately 4.4% of common shares currently outstanding. Under this authorization, shares of common stock may be purchased from time-to-time in the open market or in privately negotiated transactions. The new authorization will supplement the previous buyback program authorized in December 2004.

M&T is a bank holding company whose banking subsidiaries, M&T Bank and M&T Bank, National Association, operate branch offices in New York, Pennsylvania, Maryland, Virginia, West Virginia, Delaware and the District of Columbia.

Investor Contact: Donald J. MacLeod
                       (716) 842-5138
     Media Contact:    C. Michael Zabel
                       (716) 842-5385

SOURCE M&T Bank Corporation

Investors - Donald J. MacLeod, +1-716-842-5138, or Media - C. Michael Zabel,
+1-716-842-5385

http://www.prnewswire.com

Copyright (C) 2005 PR Newswire. All rights reserved.

News Provided by COMTEX