Butterfield Bank files Pillar 3 report for June 2025

Q: What did The Bank of N.T. Butterfield & Son Limited (NTB) file in this Form 6-K?

The company furnished a Form 6-K to provide its Pillar 3 filing for the six-month period ended June 30, 2025, as Exhibit 99.1.

Q: What is the period covered by NTB's Pillar 3 filing attached to this Form 6-K?

The attached Pillar 3 report covers the six-month period ended June 30, 2025.

Q: Who signed the Form 6-K for The Bank of N.T. Butterfield & Son Limited?

The Form 6-K was signed by Craig Bridgewater, the bank’s Group Chief Financial Officer.

Q: How is the Pillar 3 report identified in NTB's Form 6-K?

The Pillar 3 report is included as Exhibit 99.1 and described as “Pillar 3 filing - June 30, 2025.”

Q: Under which annual report form does NTB file with the SEC?

The bank files annual reports under Form 20-F as indicated in this Form 6-K.

Accepted by SEC EDGAR 08/29/2025 - 04:30 PM EDT

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Form Type

6-K

Rhea-AI Filing Summary

The Bank of N.T. Butterfield & Son Limited submitted a Form 6-K as a foreign private issuer to provide investors with its Pillar 3 filing for the six-month period ended June 30, 2025. The Pillar 3 report, attached as Exhibit 99.1, is intended to give additional disclosure on the bank’s capital, risk and regulatory position beyond its standard financial statements. The filing is signed on behalf of the bank by Group Chief Financial Officer Craig Bridgewater.

FAQ

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What did The Bank of N.T. Butterfield & Son Limited (NTB) file in this Form 6-K?

The company furnished a Form 6-K to provide its Pillar 3 filing for the six-month period ended June 30, 2025, as Exhibit 99.1.

What is the period covered by NTB's Pillar 3 filing attached to this Form 6-K?

The attached Pillar 3 report covers the six-month period ended June 30, 2025.

Who signed the Form 6-K for The Bank of N.T. Butterfield & Son Limited?

The Form 6-K was signed by Craig Bridgewater, the bank’s Group Chief Financial Officer.

How is the Pillar 3 report identified in NTB's Form 6-K?

The Pillar 3 report is included as Exhibit 99.1 and described as “Pillar 3 filing - June 30, 2025.”

Under which annual report form does NTB file with the SEC?

The bank files annual reports under Form 20-F as indicated in this Form 6-K.

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August, 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 Pillar 3 filing of The Bank of N.T. Butterfield & Son Limited for the six-month period ended June 30, 2025.

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.


Date: August 29, 2025	THE BANK OF N.T. BUTTERFIELD & SON LIMITED


	By:	/s/ Craig Bridgewater
	Name:	Craig Bridgewater
	Title:	Group Chief Financial Officer


2

EXHIBIT INDEX


Exhibit						Description

99.1						Pillar 3 filing - June 30, 2025


3

Source: View Original Filing on SEC EDGAR