================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K [X] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2000 OR [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission file number 0-23975 A. FULL TITLE OF THE PLAN AND THE ADDRESS OF THE PLAN, IF DIFFERENT FROM THAT OF THE ISSUER NAMED BELOW: First Niagara Bank 401(k) Plan 6950 South Transit Road P.O. Box 514 Lockport, New York 14095-0514 B. NAME OF THE ISSUER OF THE SECURITIES HELD PURSUANT TO THE PLAN AND THE ADDRESS OF ITS PRINCIPAL EXECUTIVE OFFICE: First Niagara Financial Group, Inc. 6950 South Transit Road P.O. Box 514 Lockport, New York 14095-0514 REQUIRED INFORMATION The First Niagara Bank 401(k) Plan (the "Plan") is subject to ERISA and therefore is filing the financial statements and schedule prepared in accordance with the financial reporting requirements of ERISA, as of and for the years ended December 31, 2000 and 1999, as an exhibit to this report. Such Plan financial statements and schedule include an Independent Auditors' Report thereon. EXHIBIT INDEX 23 Consent of KPMG LLP 99 First Niagara Bank 401(k) Plan Financial Statements and Schedule as of and for the years ended December 31, 2000 and 1999, with Independent Auditors' Report thereon. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Compensation Committee of the Board of Directors of First Niagara Bank (as administrator of the Plan) has caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized. First Niagara Bank 401(k) Date: June 27, 2001 By:/s/ Kathleen P. Monti --------------------------- ----------------------------------- Kathleen P. Monti Executive Vice President Chief Administrative Officer ================================================================================