425

Filed by KeyCorp

(Filer’s SEC File No.: 001-11302)

pursuant to Rule 425 under the Securities Act of 1933

and deemed filed pursuant to Rule 14a-12

under the Securities Exchange Act of 1934

Subject Company: First Niagara Financial Group, Inc.

(Subject Company’s SEC File No.: 001-35390)

Date: February 23, 2016

Explanatory Note: The following was mailed by KeyCorp to certain of its shareholders.

 

LOGO

February 23, 2016

Dear Fellow Shareholder:

We previously sent you proxy materials for KeyCorp’s Special Meeting of Shareholders, which will be held on March 23, 3016, relating to the proposed merger with First Niagara Financial Group. Our Board of Directors unanimously recommends that you vote FOR all proposals. We believe that this is a compelling opportunity for our company and our shareholders. The merger is expected to generate attractive financial returns and create a stronger, more balanced franchise.

Your vote is important. Approval of the merger requires the affirmative vote of the majority of KeyCorp common shares outstanding. If you have not already done so, please vote TODAY by telephone, via the Internet, or by signing, dating and returning the enclosed proxy card in the postage-paid envelope provided, to ensure that your shares are represented at this important meeting.

Thank you for your support.

Sincerely,

 

LOGO

Beth E. Mooney

Chairman of the Board and Chief Executive Officer


REMEMBER:

You can vote your shares by telephone or via the Internet.

Please follow the simple instructions on the enclosed proxy card.

If you have any questions or need assistance in voting

your shares, please call our proxy solicitor,

INNISFREE M&A INCORPORATED

TOLL-FREE, at 1-877-800-5190.

In connection with the proposed merger, KeyCorp has filed with the SEC a Registration Statement on Form S-4 on November 30, 2015 that includes the preliminary Joint Proxy Statement of KeyCorp and First Niagara and a preliminary Prospectus of KeyCorp, as well as other relevant documents concerning the proposed transaction. The registration statement, as amended, was declared effective by the SEC on February 4, 2016. KeyCorp and First Niagara mailed the definitive Joint Proxy Statement/Prospectus to their respective shareholders in connection with the transaction on or about February 5, 2016. INVESTORS AND SHAREHOLDERS ARE URGED TO READ THE DEFINITIVE JOINT PROXY STATEMENT/PROSPECTUS AND OTHER RELEVANT DOCUMENTS FILED OR TO BE FILED WITH THE SEC CAREFULLY BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION. A free copy of the definitive Joint Proxy Statement/Prospectus, as well as other filings containing information about KeyCorp and First Niagara, may be obtained at the SEC’s Internet site (http://www.sec.gov). Copies of the definitive Joint Proxy Statement/Prospectus can also be obtained, free of charge, by directing a request to KeyCorp Investor Relations at Investor Relations, KeyCorp, 127 Public Square, Mailcode OH-01-27-0737, Cleveland, Ohio 44114-1306, by calling (216) 689-3000, or by sending an e-mail to investor_relations@keybank.com or to First Niagara Investor Relations at 726 Exchange Street, Suite 618, Buffalo, New York 14210, by calling (716) 819-5669 or by sending an e-mail to investor@fnfg.com. Information regarding the persons who may, under the rules of the SEC, be considered participants in the solicitation of the shareholders of KeyCorp and First Niagara in connection with the proposed transaction will be set forth in the definitive Joint Proxy Statement/Prospectus.

IMPORTANT ADDITIONAL INFORMATION AND WHERE TO FIND IT

In connection with the proposed merger, KeyCorp has filed with the SEC a Registration Statement on Form S-4 (Registration No. 333-208272) on November 30, 2015 that includes the preliminary Joint Proxy Statement of KeyCorp and First Niagara and a preliminary Prospectus of KeyCorp, as well as other relevant documents concerning the proposed transaction. The S-4, as amended, was declared effective by the


SEC on February 4, 2016 and the definitive Joint Proxy Statement/Prospectus was first mailed to stockholders of KeyCorp and First Niagara on or about February 5, 2016. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. INVESTORS AND SHAREHOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS REGARDING THE MERGER AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.

A free copy of the definitive Joint Proxy Statement/Prospectus, as well as other filings containing information about KeyCorp and First Niagara, may be obtained at the SEC’s Internet site (http://www.sec.gov). You will also be able to obtain these documents, free of charge, from KeyCorp at investor.key.com or from First Niagara by accessing First Niagara’s website at www.firstniagara.com. Copies of the definitive Joint Proxy Statement/Prospectus can also be obtained, free of charge, by directing a request to KeyCorp Investor Relations at Investor Relations, KeyCorp, 127 Public Square, Mailcode OH-01-27-0737, Cleveland, Ohio 44114-1306, by calling (216) 689-3000, or by sending an e-mail to investor_relations@keybank.com or to First Niagara Investor Relations at 726 Exchange Street, Suite 618, Buffalo, New York 14210, by calling (716) 819-5669 or by sending an e-mail to investor@fnfg.com. In addition, KeyCorp and First Niagara use their respective Investor Relations websites and social media outlets as channels of distribution of material company information. Such information is accessible on KeyCorp’s and First Niagara’s Investor Relations websites, as well as on their respective Facebook pages and through their Twitter accounts and LinkedIn accounts.

KeyCorp and First Niagara and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the respective shareholders of KeyCorp and First Niagara in respect of the transaction described in the definitive Joint Proxy Statement/Prospectus. Information regarding KeyCorp’s directors and executive officers is contained in KeyCorp’s Proxy Statement on Schedule 14A, dated April 7, 2015, which is filed with the SEC. Information regarding First Niagara’s directors and executive officers is contained in First Niagara’s Proxy Statement on Schedule 14A, dated March 23, 2015, which is filed with the SEC. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the definitive Joint Proxy Statement/Prospectus regarding the proposed merger. Free copies of this document may be obtained as described in the preceding paragraph.

FORWARD-LOOKING STATEMENTS

This communication contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 including, but not limited to, KeyCorp’s and First Niagara’s expectations or predictions of future financial or business performance or conditions. Forward-looking statements are typically identified by words such as “believe,” “expect,” “anticipate,” “intend,” “target,” “estimate,” “continue,”


“positions,” “plan,” “predict,” “project,” “forecast,” “guidance,” “goal,” “objective,” “prospects,” “possible” or “potential,” by future conditional verbs such as “assume,” “will,” “would,” “should,” “could” or “may”, or by variations of such words or by similar expressions. These forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made and we assume no duty to update forward-looking statements. Actual results may differ materially from current projections.

In addition to factors previously disclosed in KeyCorp’s and First Niagara’s reports filed with the SEC and those identified elsewhere in this communication, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance: ability to obtain regulatory approvals and meet other closing conditions to the merger, including approval by KeyCorp and First Niagara shareholders on the expected terms and schedule, including the risk that regulatory approvals required for the merger are not obtained or are obtained subject to conditions that are not anticipated; delay in closing the merger; difficulties and delays in integrating the First Niagara business or fully realizing cost savings and other benefits; business disruption following the merger; changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; inflation; customer acceptance of KeyCorp’s products and services; customer borrowing, repayment, investment and deposit practices; customer disintermediation; the introduction, withdrawal, success and timing of business initiatives; competitive conditions; the inability to realize cost savings or revenues or to implement integration plans and other consequences associated with mergers, acquisitions and divestitures; economic conditions; and the impact, extent and timing of technological changes, capital management activities, and other actions of the Federal Reserve Board and legislative and regulatory actions and reforms.