[6-K] BANK OF MONTREAL /CAN/ Current Report (Foreign Issuer)

Filing Explained

The filing records an underwriting agreement and supplemental indenture, but does not establish issuance, proceeds, or dilution.

As a Form 6-K, the September 16 report furnishes interim information and includes an underwriting agreement dated September 8 and a ninth supplemental indenture dated September 16.

The report says its information is deemed filed solely for incorporation by reference into an SEC registration statement already declared effective, so the supplied text documents registration-related legal steps rather than establishing that securities were sold, issued, or proceeds received.

Neither the report text nor its exhibit index identifies the securities, offering amount, price, dilution, or use of proceeds.

The underwriting agreement, Exhibit 1.1, and ninth supplemental indenture, Exhibit 4.1, are the named documents, but their substantive terms are not included in the supplied filing text.

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

Form 6-K: How Foreign Companies Report to the SEC →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/16/2026 - 04:06 PM Accepted by SEC EDGAR 09/16/2026 - 04:05 PM Learn about SEC filing dates

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: September, 2026

Commission File Number: 001-13354

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 ☒

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 statement of the registrant on file with and declared effective by the SEC:

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

EXHIBIT INDEX
Exhibit		Description of Exhibit
1.1		Underwriting Agreement, dated September 8, 2026, among Bank of Montreal and BMO Capital Markets Corp., Barclays Capital Inc., Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, Morgan Stanley & Co. LLC and UBS Securities LLC, as representatives of the several Underwriters named therein.
4.1		Ninth Supplemental Indenture, dated as of September 16, 2026, between the Bank and Computershare Trust Company, N.A., as successor to Wells Fargo Bank, National Association, as Trustee.
5.1		Opinion of Sullivan & Cromwell LLP, U.S. counsel to the Bank.
5.2		Opinion of Osler, Hoskin & Harcourt LLP, Canadian counsel to the Bank.
8.1		Opinion of Sullivan & Cromwell LLP, U.S. tax counsel to the Bank.
8.2		Opinion of Torys LLP, Canadian tax counsel to the Bank.
23.1		Consent of Sullivan & Cromwell LLP (included in Exhibit 5.1 and 8.1 above).
23.2		Consent of Osler, Hoskin & Harcourt LLP (included in Exhibit 5.2 above).
23.3		Consent of Torys LLP (included in Exhibit 8.2 above).

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/ Paras Jhaveri
Name:		Paras Jhaveri
Title:		Deputy Treasurer, Global Head of Capital & Funding and Balance Sheet Management

Date: September 16, 2026

Filing Exhibits & Attachments

6 documents

Other Documents

• EX-1.1 EX-1.1 216.2 KB
• EX-4.1 EX-4.1 226.1 KB
• EX-5.1 EX-5.1 11.1 KB
• EX-5.2 EX-5.2 25.3 KB
• EX-8.1 EX-8.1 8.0 KB
• EX-8.2 EX-8.2 14.0 KB