1 AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 13, 2000 REGISTRATION NO. 333- 40640 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 ON FORM S-8 TO REGISTRATION STATEMENT ON FORM S-4 UNDER THE SECURITIES ACT OF 1933 M&T BANK CORPORATION - -------------------------------------------------------------------------------- (Exact name of registrant as specified in its charter) New York 16-0968385 - ------------------------- ---------------- (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) ONE M&T PLAZA BUFFALO, NEW YORK 14203 - -------------------------------------------------------------------------------- (Address, including zip code, of principal executive offices) KEYSTONE FINANCIAL, INC. 1997 STOCK INCENTIVE PLAN KEYSTONE FINANCIAL, INC. 1992 STOCK INCENTIVE PLAN KEYSTONE FINANCIAL, INC. 1988 STOCK INCENTIVE PLAN KEYSTONE FINANCIAL, INC. 1995 NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN KEYSTONE FINANCIAL, INC. 1990 NON-EMPLOYEE DIRECTORS' STOCK OPTION PLAN FINANCIAL TRUST CORP STOCK OPTION PLAN OF 1992 FINANCIAL TRUST CORP NON-EMPLOYEE DIRECTOR STOCK OPTION PLAN OF 1994 AMENDED AND RESTATED NONQUALIFIED STOCK OPTION AGREEMENT WITH DONALD E. STONE ELMWOOD BANCORP, INC. KEY EMPLOYEE STOCK COMPENSATION PROGRAM - -------------------------------------------------------------------------------- (Full title of the plans) RICHARD A. LAMMERT, ESQUIRE SENIOR VICE PRESIDENT AND GENERAL COUNSEL M&T BANK CORPORATION ONE M&T PLAZA BUFFALO, NEW YORK 14203 - -------------------------------------------------------------------------------- (Name and address of agent for service) (716) 842-5390 - -------------------------------------------------------------------------------- (telephone number, including area code, of agent for service) COPY TO: STEVEN KAPLAN, ESQ. ARNOLD & PORTER 555 12TH STREET, N.W. WASHINGTON, D.C. 20004 (202) 942-5998

2 PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE. The following documents filed by M&T Bank Corporation (File No. 1-9861) ("M&T") with the Securities and Exchange Commission (the "Commission") under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), are incorporated herein by reference: (a) M&T's Annual Report on Form 10-K for the year ended December 31, 1999. (b) M&T's Quarterly Reports on Form 10-Q for the quarters ended March 31, 2000 and June 30, 2000. (c) M&T's Current Report on Form 8-K dated as of March 1, 2000. (d) M&T's Current Report on Form 8-K dated as of May 16, 2000. (e) M&T's Current Report on Form 8-K dated as of July 9, 2000. (f) M&T's Current Report on Form 8-K dated as of October 6, 2000. (g) The description of the common stock of M&T ("M&T Common Stock"), contained in a registration statement on Form 8-A filed by M&T on May 20, 1998, and any amendments or reports filed for the purpose of updating such description. All documents filed by M&T after the date of this Post-Effective Amendment No. 1 pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that all M&T Common Stock offered hereby has been sold or which deregisters such M&T Common Stock then remaining unsold, shall be deemed to be incorporated in this Post-Effective Amendment No. 1 by reference and shall be a part hereof from the date of filing such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference in this Post-Effective Amendment No. 1 shall be deemed to be modified or superseded for purposes of this Post-Effective Amendment No. 1 to the extent that a statement contained herein or in any other subsequently filed document which also is or is deemed to be incorporated by reference in this Post-Effective Amendment No. 1 modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or so superseded, to constitute a part of this Post-Effective Amendment No. 1. II-1

3 ITEM 4. DESCRIPTION OF SECURITIES. Not applicable. ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL. The consolidated financial statements of M&T incorporated in this Registration Statement by reference to M&T's Annual Report on Form 10-K for the year ended December 31, 1999, have been audited by PricewaterhouseCoopers LLP, independent accountants, as outlined in their report thereon incorporated in this document by reference. Such consolidated financial statements are incorporated in this document by reference in reliance upon such report given upon the authority of such firm as experts in accounting and auditing. Keystone's audited consolidated financial statements for the year ended December 31, 1999, included in Keystone's Annual Report on Form 10-K for the year ended December 31, 1999 and incorporated in this Registration Statement by reference to M&T's Current Report on Form 8-K dated as of October 6, 2000, have been audited by Ernst & Young LLP, independent auditors, as set forth in their report thereon and incorporated in this document by reference. Such consolidated financial statements are incorporated herein by reference in reliance upon such report given on the authority of such firm as experts in accounting and auditing. Documents incorporated herein by reference in the future will include financial statements, related schedules (if required) and auditors' reports, which financial statements and schedules will have been audited to the extent and for the periods set forth in such reports by the firm or firms rendering such reports, and, to the extent so audited and consent to incorporation by reference is given, will be incorporated herein by reference in reliance upon such reports given upon the authority of such firms as experts in accounting and auditing. Richard A. Lammert, Esq., Senior Vice President and General Counsel of M&T, has delivered a legal opinion to the effect that the issuance and sale of the M&T common stock offered hereby was duly authorized by M&T and that such M&T common stock will be validly issued, fully paid and nonassessable when issued upon the exercise of options. As of November 9, 2000, Mr. Lammert was the beneficial owner of 61,340 shares of M&T common stock and held options granted under the M&T Bank Corporation 1983 Stock Option Plan covering 125,000 shares of M&T common stock, 90,000 of which are currently exercisable. II-2

4 ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS. Section 721 and 722 of the New York Business Corporation Law ("NYBCL") provide for indemnification of directors and officers. Section 721 of New York law provides that the statutory provisions under New York law are not exclusive of any other rights to which a director or officer seeking indemnification would be entitled. Section 722 of the NYBCL provides that a corporation may indemnify a director or officer of the corporation who is made a party, or threatened to be made a party, in a civil or criminal proceeding arising out of activities undertaken at the request of the corporation (including action on behalf of another corporation, partnership, joint venture, trust, employee benefit plan or other business enterprise) against judgments, fines, amounts paid in settlement and reasonable expenses, if the director or officer acted in good faith for a purpose which he reasonably believed to be in, or, in the case of service for any other corporation, partnership, joint venture, trust, employee benefit plan or other business enterprise, not opposed to, the best interests of the corporation. To be indemnified with respect to criminal proceedings, the director or officer must also have had no reasonable cause to believe that his or her conduct was unlawful. In the case of a claim by or in the right of the corporation (including stockholder derivative suits), there is no indemnification under New York law for threatened actions or a pending action otherwise settled or disposed of, and no indemnification of expenses is permitted, if the director or officer is adjudged liable to the corporation unless and only to the extent a court determines that, despite such adjudication but in view of all the circumstances, such indemnification is nonetheless proper. The certificate of incorporation of M&T provides that M&T will indemnify to the maximum extent permissible under New York law its officers and directors for liability arising out of their actions in such capacity. ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED. Not applicable. ITEM 8. EXHIBITS. The exhibits listed on the Exhibit Index on page II-9 of this Post-Effective Amendment No. 1 on Form S-8 to Registration Statement on Form S-4 have been previously filed, are filed herewith or are incorporated herein by reference to other filings. ITEM 9. UNDERTAKINGS. M&T hereby undertakes: II-3

5 1. To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement: (a) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended; (b) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement; (c) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement. Provided, however, that the undertakings set forth in paragraphs 1(a) and 1(b) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by M&T pursuant to Section 13 or 15(d) of the Exchange Act, which are incorporated by reference in this registration statement. 2. That, for the purpose of determining any liability under the Securities Act of 1933, as amended, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. 3. To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering. II-4

6 4. That, for purposes of determining any liability under the Securities Act of 1933, as amended, each filing of M&T's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act of 1934, as amended, that is incorporated by reference in this registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. 5. Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended, may be permitted to directors, officers and controlling persons of M&T pursuant to the foregoing provisions, or otherwise, M&T has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by M&T of expenses incurred or paid by a director, officer or controlling person of M&T in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, M&T will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue. II-5

7 SIGNATURES Pursuant to the requirements of the Securities Act of 1933, M&T certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Post-Effective Amendment No. 1 on Form S-8 to Registration Statement on Form S-4 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Buffalo, State of New York, on November 13, 2000. M&T BANK CORPORATION By: /s/ Michael P. Pinto ------------------------------ Michael P. Pinto Executive Vice President and Chief Financial Officer Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 1 on Form S-8 to Registration Statement on Form S-4 has been signed by the following persons in the capacities indicated on November 13, 2000: Signature Title * Chairman of the Board, President and Chief - --------------------------------- Executive Officer (Principal Executive Officer) Robert G. Wilmers * Executive Vice President and Chief Financial - --------------------------------- Officer (Principal Financial Officer) Michael P. Pinto * Senior Vice President and Controller (Principal - --------------------------------- Accounting Officer) Michael R. Spychala * Director - --------------------------------- William F. Allyn * Director - --------------------------------- Brent D. Baird * Director - --------------------------------- John H. Benisch II-6

8 * Director - --------------------------------- Robert J. Bennett * Director - --------------------------------- C. Angela Bontempo * Director - --------------------------------- Robert T. Brady * Director - --------------------------------- Patrick J. Callan Vice Chairman of the Board - --------------------------------- Carl L. Campbell * Director - --------------------------------- R. Carlos Carballada Director - --------------------------------- Donald Devorris * Director - --------------------------------- Richard E. Garman * Director - --------------------------------- James V. Glynn Director - --------------------------------- Daniel R. Hawbaker * Director - --------------------------------- Patrick W.E. Hodgson * Director - --------------------------------- Samuel T. Hubbard, Jr. Director - --------------------------------- Richard G King * Director - --------------------------------- Reginald B. Newman, II * Director - --------------------------------- Peter J. O'Donnell, Jr. * Director - --------------------------------- Jorge G. Pereira II-7

9 * Director - --------------------------------- Robert E. Sadler, Jr. Director - --------------------------------- Stephen G. Sheetz * Director - --------------------------------- John L. Vensel * Director - --------------------------------- Herbert L. Washington * By /s/ Richard A. Lammert November 13, 2000 ------------------------ (Attorney-in-fact) II-8

10 INDEX TO EXHIBITS Exhibit 4.1 Keystone Financial, Inc. 1997 Stock Incentive Plan, as amended November 19, 1998, incorporated by reference to Exhibit 10.16 of Form 10-K of Keystone Financial, Inc., for the year ended December 31, 1998. Exhibit 4.2 Keystone Financial, Inc. 1992 Stock Incentive Plan, incorporated herein by reference to Exhibit 10.10 of Form 10-K of Keystone Financial, Inc., for the year ended December 31, 1997. Exhibit 4.3 Keystone Financial, Inc. 1988 Stock Incentive Plan, incorporated by reference to Exhibit 10.2 of Form 10-K of Keystone Financial, Inc., for the year ended December 31, 1998. Exhibit 4.4 Keystone Financial, Inc. 1995 Non-Employee Directors' Stock Option Plan, incorporated by reference to Exhibit B of the Proxy Statement of Keystone Financial, Inc., dated April 7, 1995 (SEC File No.000-11460). Exhibit 4.5 Keystone Financial, Inc. 1990 Non-Employee Directors' Stock Option Plan, as amended, incorporated by reference to Exhibit 10.9 of Form 10-K of Keystone Financial, Inc. for the year ended December 31, 1998 Exhibit 4.6 Financial Trust Corp Stock Option Plan of 1992, incorporated by reference to Exhibit 4.1 of the Registration Statement on Form S-8 of Financial Trust Corp, dated January 25, 1993 (SEC File No. 33-57494). Exhibit 4.7 Financial Trust Corp Non-Employee Director Stock Option Plan of 1994, incorporated by reference to Exhibit 4.1 of the Registration Statement on Form S-8 of Financial Trust Corp, dated March 26, 1996. Exhibit 4.8 Amended and Restated Nonqualified Stock Option Agreement with Donald E. Stone, incorporated by reference to Exhibit 28 to Form 8-K of WM Bancorp, dated December 12, 1991 (SEC File No. 33-0889). Exhibit 4.9 Elmwood Bancorp, Inc. Key Employee Stock Compensation Program, incorporated by reference to Exhibit 10.1 of the Registration Statement on Form S-4 of Elmwood Bancorp, Inc., dated February 24, 1992 (SEC File No 33-45761). Exhibit 5 Opinion of Richard A. Lammert, Esq., filed herewith. II-9

11 Exhibit 23.1 Consent of Richard A. Lammert, Esq., included in the opinion filed as Exhibit 5 hereto. Exhibit 23.2 Consent of PricewaterhouseCoopers LLP, filed herewith. Exhibit 23.3 Consent of Ernst & Young LLP, filed herewith. Exhibit 24 Powers of Attorney of certain directors and officers of M&T, previously filed as Exhibit 24 to the Registration Statement on Form S-4 (File No. 333-40640) by M&T Bank Corporation on June 30, 2000. II-10

1 Exhibit 5 M&T Bank Corporation One M&T Plaza Buffalo, New York 14203 November 13, 2000 Board of Directors M&T Bank Corporation One M&T Plaza Buffalo, New York 14203 Ladies and Gentlemen: Reference is made to the Post-Effective Amendment No. 1 on Form S-8 to the Registration Statement on Form S-4 (File No. 333-40640) (the "Registration Statement") of M&T Bank Corporation (the "Corporation") related to 1,300,331 shares of the Corporation's common stock, par value $0.50 per share ("Common Stock"), which are to be offered pursuant to stock options granted under the following stock incentive plans, stock option plans, stock option agreement and stock compensation plan (collectively, the "Plans"), plus the number of shares, if any, that may be granted under reload rights contained in certain options granted under the Plans: - Keystone Financial, Inc. 1997 Stock Incentive Plan - Keystone Financial, Inc. 1992 Stock Incentive Plan - Keystone Financial, Inc. 1988 Stock Incentive Plan - Keystone Financial, Inc. 1995 Non-Employee Directors' Stock Option Plan - Keystone Financial, Inc. 1990 Non-Employee Directors' Stock Option Plan - Financial Trust Corp Stock Option Plan of 1992 - Financial Trust Corp Non-Employee Director Stock Option Plan of 1994 - Amended and Restated Nonqualified Stock Option Agreement with Donald E. Stone - Elmwood Bancorp, Inc. Key Employee Stock Compensation Program I have been requested to furnish an opinion to be included as Exhibit 5 to the Registration Statement. In conjunction with the furnishing of this opinion, I have examined such corporate documents and have made such investigation of matters of fact and law as I have deemed necessary to render this opinion. I am admitted to practice law in the State of New York and do not purport to be an expert on or to express any opinion on any laws other than the laws of the State of New York and the II-11

2 federal laws of the United States of America. This opinion speaks as of today's date and is limited to present statutes, regulations and judicial interpretations. In rendering this opinion, I assume no obligation to revise or supplement this opinion should the present laws be changed by legislative or regulatory action, judicial decision or otherwise. Based upon such examination and investigation, and upon the assumptions that there will be no material changes in the documents examined and matters investigated and that at the time of issuance there will be authorized but unissued shares of Common Stock available to the Corporation in sufficient amounts, I am of the opinion that the shares of Common Stock referred to above have been duly authorized by the Corporation and that, when issued in accordance with the terms of the Plans and for AN amount that is not less than the applicable par value of the Common Stock at the time of issuance, will be legally issued, fully paid and non-assessable. I consent to the filing of this opinion as Exhibit 5 to the Registration Statement. This letter does not address any matters other than those expressly addressed herein. This letter is given for your sole benefit and use. No one else is entitled to rely hereupon. Very truly yours, /s/ Richard A. Lammert Richard A. Lammert Senior Vice President and General Counsel II-12

1 Exhibit 23.2 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Post-Effective Amendment No. 1 on Form S-8 to the Registration Statement on Form S-4 (File No. 333-40640) of M&T Bank Corporation of our report dated January 10, 2000 appearing on page 64 of M&T Bank Corporation's Annual Report on Form 10-K for the year ended December 31, 1999. We also consent to the reference to us under Item 5 "Interests of Named Experts and Counsel." PricewaterhouseCoopers LLP Buffalo, New York November 13, 2000 II-13

1 Exhibit 23.3 CONSENT OF INDEPENDENT AUDITORS We consent to the reference to our firm under Item 5 "Interests of Named Experts and Counsel" and to the use of our report dated January 28, 2000, with respect to the consolidated financial statements of Keystone Financial, Inc. (Keystone) and subsidiaries incorporated by reference in its Annual Report (Form 10-K) for the year ended December 31, 1999, incorporated by reference in this Post-Effective Amendment No. 1 on Form S-8 to the Registration Statement on Form S-4 of M&T Bank Corporation. Ernst & Young Pittsburgh, Pennsylvania November 13, 2000 II-14