Form 10-Q/A

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q/A

(Amendment No. 1)


þ		QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2011


o		TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 000-23975

FIRST NIAGARA FINANCIAL GROUP, INC.

(exact name of registrant as specified in its charter)


Delaware		42-1556195
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

726 Exchange Street, Suite 618, Buffalo, NY		14210
(Address of principal executive offices)		(Zip Code)

(716) 819-5500

(Registrant’s telephone number, including area code)

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding twelve months (or for such shorter period that the Registrant was required to file such reports) and (2) has been subject to such requirements for the past 90 days. YES þ NO o

Indicate by check mark whether the Registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). YES þ NO o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer (as defined in Rule 12b-2 of the Exchange Act).


Large accelerated filer þ		Accelerated filer o		Non-accelerated filer o		Smaller reporting company o

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). YES o NO þ

APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PRECEDING FIVE YEARS:

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. YES o NO o

As of August 5, 2011, there were issued and outstanding 294,871,523 shares of the Registrant’s Common Stock, $0.01 par value.

TABLE OF CONTENTS


	Item 6. Exhibits
SIGNATURES
EX-101 INSTANCE DOCUMENT
EX-101 SCHEMA DOCUMENT
EX-101 CALCULATION LINKBASE DOCUMENT
EX-101 LABELS LINKBASE DOCUMENT
EX-101 PRESENTATION LINKBASE DOCUMENT
EX-101 DEFINITION LINKBASE DOCUMENT

EXPLANATORY NOTE

This Form 10-Q/A (Amendment No. 1) amends the Quarterly Report on Form 10-Q of First Niagara Financial Group, Inc. for the quarter ended June 30, 2011 that was filed with the Securities and Exchange Commission on August 8, 2011, for the sole purpose of furnishing the XBRL Interactive Data Files as Exhibit 101 in accordance with Rule 405 of Regulaation S-T. No other changes have been made to the Form 10-Q.

This Form 10-Q/A speaks to the original filing date of the Form 10-Q and does not reflect any events that may have occurred after the original filing date and does not modify or update any disclosures made in the original filing.

Item 6. Exhibits


	31.1			Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002⁽¹⁾

	31.2			Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002⁽¹⁾

	32			Certification of Principal Executive Officer and Principal Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002⁽¹⁾

	101			Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Statements of Condition, (ii) the Consolidated Statements of Income, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows, and (vi) the Notes to Consolidated Financial Statements tagged as blocks of text and in detail⁽²⁾


⁽¹⁾		Previously filed on Form 10-Q for the quarterly period ended June 30, 2011 with the Securities and Exchange Commission on August 8, 2011.

⁽²⁾		As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Sections 11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.


	FIRST NIAGARA FINANCIAL GROUP, INC.
Date: September 7, 2011	By:	/s/ John R. Koelmel
		John R. Koelmel
		President and Chief Executive Officer (Principal Executive Officer)

Date: September 7, 2011	By:	/s/ Gregory W. Norwood
		Gregory W. Norwood
		Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

Table of Contents

Table of Contents