Butterfield (NTB) files Form 6-K on senior leadership appointments

Rhea-AI Filing Summary

The Bank of N.T. Butterfield & Son Limited filed a Form 6-K as a foreign private issuer for September 2025. The filing consists primarily of a press release, attached as Exhibit 99.1, announcing senior leadership appointments at the bank.

The report is signed on behalf of the bank by Michael Schrum, who is identified as President and Group Chief Financial Officer. The bank indicates it files its annual reports under cover of Form 20-F.

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2025

Commission File Number: 001-37877

The Bank of N.T. Butterfield & Son Limited

(Translation of registrant’s name into English)

65 Front Street

Hamilton, HM 12

Bermuda

(Address of principal executive offices)

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

Form 20-F ý Form 40-F o

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): o

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): o

DOCUMENTS INCLUDED AS PART OF THIS FORM 6-K

Attached hereto as Exhibit 99.1 is the press release announcing senior leadership appointments of The Bank of N.T. Butterfield & Son Limited.

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.

Date:  September 2, 2025			THE BANK OF N.T. BUTTERFIELD & SON LIMITED
			By:			/s/ Michael Schrum
			Name:			Michael Schrum
			Title:			President and Group Chief Financial Officer

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EXHIBIT INDEX

Exhibit						Description
99.1						Butterfield Announces Senior Leadership Appointments

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FAQ

What is the purpose of The Bank of N.T. Butterfield (NTB) September 2025 Form 6-K?

The Form 6-K records that Butterfield furnished a press release announcing senior leadership appointments. It serves as an official SEC submission by the foreign private issuer for this corporate governance update.

What key document is included with Butterfield (NTB) in this Form 6-K?

The filing includes Exhibit 99.1, titled "Butterfield Announces Senior Leadership Appointments." This exhibit contains the press release that describes the senior leadership changes at the bank.

Which annual report form does The Bank of N.T. Butterfield (NTB) use with the SEC?

The bank indicates it files its annual reports under cover of Form 20-F. This is the standard annual reporting form used by foreign private issuers listed in U.S. markets.

Who signed the September 2025 Form 6-K for The Bank of N.T. Butterfield (NTB)?

The report was signed by Michael Schrum, identified as President and Group Chief Financial Officer. His signature confirms the bank’s authorization and submission of this leadership-appointments update.

Does the September 2025 Form 6-K for Butterfield (NTB) include financial results?

The described content focuses on senior leadership appointments and a related press release. There is no indication in the excerpt that it includes financial statements or earnings data.