6-K 1 d50246d6k.htm 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

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

of the Securities Exchange Act of 1934

For the month of: December, 2025 |  | Commission File Number: 001-13354

BANK OF MONTREAL

(Name of Registrant)

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

EXHIBIT INDEX

Exhibit |  | Description of Exhibit
99.1 |  | BMO 2025 Annual Report to Shareholders

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/ Tayfun Tuzun
|  |  |  | Name: |  | Tayfun Tuzun
|  |  |  | Title: |  | Chief Financial Officer
Date: December 4, 2025 |  |  |  | By: |  | /s/ Pascale Elharrar
|  |  |  | Name: |  | Pascale Elharrar
|  |  |  | Title: |  | Corporate Secretary