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  4. [Form 4] John Marshall Bancorp, Inc. Insider Trading Activity

John Marshall Bancorp director buys 2,357 shares

John Marshall Bancorp, Inc. (JMSB) director Jonathan Craig Kinney reported net purchases of common stock on August 26, 2026 through dividend reinvestment.

Filing Impact
(Neutral)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

John Marshall Bancorp, Inc. (JMSB) director Jonathan Craig Kinney reported net purchases of common stock on August 26, 2026 through dividend reinvestment. He acquired 1,119 shares at $22.92 per share directly and 1,238 shares at $22.92 per share indirectly through an affiliated entity. Following these transactions, he holds 330,001 shares directly, including 3,058 shares relating to unvested restricted stock awards, 279,926 shares indirectly through KF Associates, and 5,624 shares indirectly owned by his spouse.

Positive

  • None.

Negative

  • None.
Insider Kinney Jonathan Craig
Role Director
Bought 2,357 shs ($54K)
Type Security Shares Price Value
Purchase Common Stock F1, F2 1,119 $22.92 $26K
Purchase Common Stock F1, F3 1,238 $22.92 $28K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 330,001 shares (Direct); Common Stock — 279,926 shares (Indirect, See footnote); Common Stock — 5,624 shares (Indirect, Shares owned by spouse)
Footnotes (3)
  1. F1. Reinvestment of cash dividends.
  2. F2. Includes 3,058 shares relating to unvested restricted stock awards issuable upon vesting.
  3. F3. Shares owned by KF Associates, an affiliated company of the reporting person.
Direct purchase shares 1,119 shares of Common Stock Acquired on August 26, 2026 via reinvestment of cash dividends
Direct purchase price $22.92 per share Price for 1,119 directly acquired shares on August 26, 2026
Indirect purchase shares via KF Associates 1,238 shares of Common Stock Acquired on August 26, 2026 via reinvestment of cash dividends
Indirect purchase price via KF Associates $22.92 per share Price for 1,238 indirectly acquired shares on August 26, 2026
Direct holdings after transactions 330,001 shares of Common Stock Post-transaction direct ownership, including unvested restricted stock awards
Unvested restricted stock awards included 3,058 shares Included in 330,001 directly held shares, issuable upon vesting
Indirect holdings via KF Associates after transactions 279,926 shares of Common Stock Post-transaction indirect ownership through affiliated company KF Associates
Indirect holdings owned by spouse 5,624 shares of Common Stock Indirect ownership reported as shares owned by spouse
Reinvestment of cash dividends financial
"Footnote F1 describes the transactions as "Reinvestment of cash dividends.""
unvested restricted stock awards financial
"Footnote F2 notes shares relating to unvested restricted stock awards issuable upon vesting."
indirect ownership financial
"Transactions report indirect ownership for shares held through KF Associates and spouse."
affiliated company financial
"Footnote F3 states shares are owned by KF Associates, an affiliated company."

FAQ

What insider transactions did JMSB director Jonathan Craig Kinney report on this Form 4?
He reported two purchases of John Marshall Bancorp, Inc. common stock on August 26, 2026 via reinvestment of cash dividends: 1,119 shares directly and 1,238 shares indirectly through an affiliated entity, both at $22.92 per share.

How many JMSB shares does Jonathan Craig Kinney own directly after these transactions?
After the reported transactions, Jonathan Craig Kinney directly owns 330,001 shares of John Marshall Bancorp, Inc. common stock, which the filing states includes 3,058 shares relating to unvested restricted stock awards issuable upon vesting.

What indirect JMSB holdings does Jonathan Craig Kinney report?
He reports 279,926 shares of John Marshall Bancorp, Inc. common stock held indirectly through KF Associates, described as an affiliated company of the reporting person, and an additional 5,624 shares held indirectly as shares owned by his spouse.

At what price were the JMSB shares acquired in the reported transactions?
Both reported acquisitions of John Marshall Bancorp, Inc. common stock on August 26, 2026 were at $22.92 per share, with 1,119 shares acquired directly and 1,238 shares acquired indirectly through KF Associates, all in connection with reinvestment of cash dividends.

Were the reported JMSB insider transactions made under a Rule 10b5-1 trading plan?
The filing’s Rule 10b5-1 checkbox is not checked (aff_10b5_one is false), and the footnotes describe the transactions as reinvestment of cash dividends, with no indication that they were executed under a Rule 10b5-1 trading plan.

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SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
Kinney Jonathan Craig
(Last)(First)(Middle)
1943 ISAAC NEWTON SQUARE EAST
SUITE 100
(Street)
RESTON VIRGINIA 20190
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
John Marshall Bancorp, Inc. [ JMSB ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/26/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock08/26/2026P(1)1,119A$22.92330,001(2)D
Common Stock08/26/2026P(1)1,238A$22.92279,926ISee footnote(3)
Common Stock5,624IShares owned by spouse
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Reinvestment of cash dividends.
2. Includes 3,058 shares relating to unvested restricted stock awards issuable upon vesting.
3. Shares owned by KF Associates, an affiliated company of the reporting person.
/s/ Jacob A. Gruninger, Attorney-in-Fact08/28/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR