FORM 6-K/A

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of: January, 2012 Commission File Number: 001-133354

BANK OF MONTREAL

(Name of Registrant)

100 King Street West 1 First Canadian Place Toronto, Ontario Canada, M5X 1A1   (Executive Offices)   129 rue Saint-Jacques Montreal, Quebec Canada, H2Y 1L6   (Head Office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F  ¨            Form 40-F  þ

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ¨

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.  Yes  ¨  No  þ

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-                    .

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.

	BANK OF MONTREAL
	By:	/s/ Thomas E. Flynn
	Name:	Thomas E. Flynn
	Title:	Executive Vice-President and Chief Risk Officer
Date: January 23, 2012	By:	/s/ Barbara M. Muir
	Name:	Barbara M. Muir
	Title:	Senior Vice-President, Deputy General
		Counsel, Corporate Affairs & Corporate Secretary

EXHIBIT INDEX

Exhibit	Description of Exhibit
99.1	Annual Report to Shareholders 2011

This Amended Annual Report filing reflects corrections to the map on page 2 of the Annual Report that shows the provinces and states in which BMO’s business groups operate. In all other respects, it is consistent with the original filing of the Annual Report.