John Marshall Bancorp (JMSB) COO discloses 28-share insider stock transaction

Rhea-AI Filing Summary

John Marshall Bancorp, Inc. executive activity shows a small insider transaction by the company’s Chief Operating Officer. A Form 4 reports that on 12/17/2025, the COO disposed of 28 shares of common stock at a price of $21.37 per share, as reflected in the transaction table.

After this transaction, the reporting person beneficially owned 1,370 shares of John Marshall Bancorp common stock in direct ownership. This total includes 848 shares tied to unvested restricted stock awards that are issuable upon vesting, indicating that a significant portion of the reported holdings is still subject to vesting conditions.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bell Kelly Jo

(Last) (First) (Middle)

1943 ISAAC NEWTON SQUARE EAST

SUITE 100

(Street)

RESTON VA 20190

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
John Marshall Bancorp, Inc. [ JMSB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF OPERATING OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
12/17/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/17/2025		F		28	D	$21.37	1,370(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 848 shares relating to unvested restricted stock awards issuable upon vesting.

	/s/ Jason S. Anderson, Attorney-in-Fact	12/18/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did John Marshall Bancorp (JMSB) report on this Form 4?

The Form 4 reports that the Chief Operating Officer of John Marshall Bancorp, Inc. disposed of 28 shares of common stock on 12/17/2025 at a price of $21.37 per share.

Who is the reporting person in John Marshall Bancorp (JMSB)'s latest Form 4 filing?

The reporting person is an officer of John Marshall Bancorp, Inc., serving as the company’s Chief Operating Officer, as indicated in the relationship section of the filing.

How many JMSB shares does the COO beneficially own after the reported transaction?

Following the reported transaction, the Chief Operating Officer beneficially owns 1,370 shares of John Marshall Bancorp common stock in direct ownership.

Does the Form 4 for John Marshall Bancorp (JMSB) include any restricted stock awards?

Yes. The explanation states that the reported holdings include 848 shares related to unvested restricted stock awards that are issuable upon vesting.

What type of security is involved in this John Marshall Bancorp (JMSB) Form 4 filing?

The security involved is common stock of John Marshall Bancorp, Inc., listed in Table I of the Form 4.

Is this John Marshall Bancorp (JMSB) Form 4 filed for one or multiple reporting persons?

The Form 4 is indicated as being filed by one reporting person, according to the individual or joint/group filing section.