Bank of Montreal names Tim Cox U.S. CEO from Nov. 1

Effective November 1, 2026, Tim Cox will report to Darryl White, join BMO’s Executive Committee and chair the U.S. Management Committee.

Rhea-AI Filing Summary

Bank of Montreal appointed Tim Cox as U.S. Country Head and CEO of its U.S. subsidiaries, BMO Financial Corp. and BMO Bank N.A., effective November 1, 2026. Cox will report to Darryl White, Chief Executive Officer of BMO Financial Group, join the bank’s Executive Committee and chair the U.S. Management Committee. Cox joined BMO in 2010 and has served as U.S. General Counsel since 2022.

Darrel Hackett shared his intention to retire from the U.S. CEO role after more than 22 years with BMO and will transition to Executive Vice-Chair and Senior Advisor effective November 1, 2026. BMO reported total assets of $1.5 trillion as of July 31, 2026, and serves 13 million customers across Canada, the United States and select markets globally.

Key Figures

Total assets: $1.5 trillion Customers: 13 million customers Joined BMO: 2010 +2 more

5 metrics

Total assets $1.5 trillion As of July 31, 2026

Customers 13 million customers Across Canada, the United States and select markets globally

Joined BMO 2010 Tim Cox

U.S. General Counsel since 2022 Tim Cox

Time with BMO More than 22 years Darrel Hackett

Key Terms

U.S. Country Head, Executive Committee, U.S. Management Committee, Executive Vice-Chair

4 terms

U.S. Country Head technical

"appointed as U.S. Country Head"

Executive Committee technical

"join the bank’s Executive Committee"

An executive committee is a small group of top leaders within an organization responsible for making important decisions and setting strategic direction. Think of it as the company's steering team, guiding the overall course and ensuring management actions align with long-term goals. For investors, understanding the executive committee helps gauge how decisions are made at the highest level and how leadership might influence the company's future performance.

U.S. Management Committee technical

"chair the U.S. Management Committee"

Executive Vice-Chair technical

"transition to a role of Executive Vice-Chair and Senior Advisor"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Who is BMO’s new U.S. Country Head?

Tim Cox was appointed U.S. Country Head and CEO of BMO’s U.S. subsidiaries, BMO Financial Corp. and BMO Bank N.A., effective November 1, 2026. He will report to Darryl White, join the bank’s Executive Committee and chair the U.S. Management Committee.

What role will Darrel Hackett take at BMO?

Darrel Hackett will transition to Executive Vice-Chair and Senior Advisor effective November 1, 2026. He shared his intention to retire from his role as U.S. CEO after more than 22 years with BMO.

What were Tim Cox’s previous roles at BMO?

BMO says Tim Cox held senior Legal & Regulatory Compliance leadership roles, including Global Chief Regulatory Officer. He has served as U.S. General Counsel since 2022.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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: October, 2026 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 – BMO Announces Executive Appointments

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/ Rahul Nalgirkar
				Name:		Rahul Nalgirkar
				Title:		Chief Financial Officer
Date: October 20, 2026				By:		/s/ Pascale Elharrar
				Name:		Pascale Elharrar
				Title:		Corporate Secretary

Exhibit 99.1

NEWS

FOR IMMEDIATE RELEASE

BMO Announces Executive Appointments

• Tim Cox named U.S. Country Head

• Darrel Hackett to be appointed Executive Vice-Chair and Senior Advisor

TORONTO and CHICAGO, October 20, 2026 - BMO today announced the appointment of Tim Cox as U.S. Country Head, BMO Financial Group, and CEO of BMO’s U.S. subsidiaries BMO Financial Corp. and BMO Bank N.A.

Mr. Cox will report to Darryl White, Chief Executive Officer of BMO Financial Group, join the bank’s Executive Committee and chair the U.S. Management Committee. His appointment is effective November 1, 2026. Mr. Cox joined BMO in 2010 and has held a number of senior Legal & Regulatory Compliance leadership roles, including Global Chief Regulatory Officer. Since 2022, he has served as U.S. General Counsel.

“As our U.S. Country Head, Tim’s leadership, deep understanding of our business and commitment to serving our clients, colleagues and communities will be key to the continued success of our U.S. franchise,” said Darryl White, Chief Executive Officer, BMO Financial Group. “Tim is a highly respected leader who has helped shape BMO’s growth over the past 15 years, supporting the expansion of our business while strengthening the governance, risk management and regulatory foundation that underpins our success.”

Darrel Hackett has shared his intention to retire from his role as U.S. CEO after more than 22 years with BMO. Mr. Hackett will transition to a role of Executive Vice-Chair and Senior Advisor effective November 1.

“Darrel has played a central role in advancing our North American growth strategy and helping build the U.S. business we have today,” continued Mr. White. “Darrel is a tireless advocate for our clients, our employees and the communities we serve, and his leadership has strengthened relationships across our markets helping ensure we continue to deliver the insights, advice and capabilities our clients value most.”

About BMO Financial Group

BMO Financial Group is driven by a single purpose: to Boldly Grow the Good in business and life. Serving customers for more than 200 years and counting, BMO is a highly diversified financial services provider with total assets of $1.5 trillion as of July 31, 2026. BMO provides personal and commercial banking, wealth management, global markets and investment banking services to 13 million customers across Canada, the United States and select markets globally.

For further information: Media Contact: John Fenton, john.fenton@bmo.com

Filing Exhibits & Attachments

1 document

Press Releases

• EX-99.1 EX-99.1 5.3 KB