UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 29, 2025

John Marshall Bancorp, Inc.

(Exact name of registrant as specified in its charter)

Virginia

001-41315

81-5424879

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1943 Isaac Newton Square East, Suite 100

Reston, Virginia 20190

(Address, including zip code, of principal executive offices)

Registrant’s telephone number, including area code: (703) 584-0840

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):


	☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
	☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
	☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
	☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class registered		Trading symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.01 per share		JMSB		The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

Item 2.02 Results of Operations and Financial Condition.

On October 29, 2025, John Marshall Bancorp, Inc. (the “Company”) issued a press release announcing its results of operations and financial condition for the quarter ended September 30, 2025. A copy of the press release is included as Exhibit 99.1 to this report.

Item 9.01 Financial Statements and Exhibits.


		Exhibits



Exhibit No.		Description

99.1		Press release dated October 29, 2025.
104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

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 hereunto duly authorized.

JOHN MARSHALL BANCORP, INC.

Date: October 29, 2025

/s/ Kent D. Carstater

Kent D. Carstater
Senior Executive Vice President, Chief Financial Officer

John Marshall Bancorp, Inc. 8-K