Bank of Montreal (NYSE: BMO) files Form 6-K with Q4 2025 earnings release exhibit

Rhea-AI Filing Summary

Bank of Montreal filed a Form 6-K as a foreign private issuer to provide U.S. investors with access to its latest disclosure. The filing primarily serves as a cover document to incorporate information by reference into the bank’s existing SEC registration statements. It identifies a press release titled “Fourth Quarter 2025 Earnings Release” as Exhibit 99.1, indicating that detailed quarterly results are provided in that separate document. The report is signed on behalf of Bank of Montreal by its Chief Financial Officer, Tayfun Tuzun, and Corporate Secretary, Pascale Elharrar.

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 ☒

INCORPORATION BY REFERENCE

The information contained in this Form 6-K and any exhibits hereto shall be deemed filed with the Securities and Exchange Commission (“SEC”) solely for purposes of incorporation by reference into and as part of the following registration statements of the registrant on file with and declared effective by the SEC:

1. Registration Statement – Form F-3 – File No. 333-214934

2. Registration Statement – Form F-3 – File No. 333-285508

3. Registration Statement – Form S-8 – File No. 333-191591

4. Registration Statement – Form S-8 – File No. 333-180968

5. Registration Statement – Form S-8 – File No. 333-177579

6. Registration Statement – Form S-8 – File No. 333-177568

7. Registration Statement – Form S-8 – File No. 333-176479

8. Registration Statement – Form S-8 – File No. 333-175413

9. Registration Statement – Form S-8 – File No. 333-175412

10. Registration Statement – Form S-8 – File No. 333-113096

11. Registration Statement – Form S-8 – File No. 333-14260

12. Registration Statement – Form S-8 – File No. 33-92112

13. Registration Statement – Form S-8 – File No. 333-207739

14. Registration Statement – Form S-8 – File No. 333-237522

15. Registration Statement – Form S-8 – File No. 333-276007

EXHIBIT INDEX

Exhibit		Description of Exhibit
99.1		Press Release – Fourth Quarter 2025 Earnings Release

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

FAQ

What is the purpose of Bank of Montreal's (BMO) latest Form 6-K?

The Form 6-K allows Bank of Montreal to make information available to U.S. investors and to incorporate that information by reference into its effective SEC registration statements.

Does this BMO Form 6-K include fourth quarter 2025 earnings details?

The document identifies a press release titled “Fourth Quarter 2025 Earnings Release” as Exhibit 99.1, indicating that earnings details are contained in that exhibit rather than in the body of the Form 6-K.

Which exhibit is attached to this Bank of Montreal (BMO) Form 6-K?

The exhibit listed is Exhibit 99.1, described as the press release for Bank of Montreal’s Fourth Quarter 2025 Earnings Release.

How will this Form 6-K be used with BMO’s SEC registration statements?

The information in this Form 6-K and its exhibits will be treated as filed with the SEC solely for incorporation by reference into certain Bank of Montreal registration statements that are already effective.

Who signed the Bank of Montreal (BMO) Form 6-K?

The Form 6-K is signed on behalf of Bank of Montreal by Tayfun Tuzun, Chief Financial Officer, and Pascale Elharrar, Corporate Secretary.