[Form 4] MainStreet Bancshares, Inc. Insider Trading Activity

Rhea-AI Filing Summary

MainStreet Bancshares insider purchase: Jeff W. Dick, who serves as Chairman, President and CEO and is also a director, reported acquiring 176 shares of MainStreet Bancshares common stock on 09/08/2025 at a price of $22.15 per share. After the purchase, he directly beneficially owns 194,690 shares. In addition, 55,091 shares are reported as indirectly owned through a 401(k) plan.

The Form 4 was signed by an attorney-in-fact for the reporting person and reflects a routine disclosure of a small non-derivative purchase by a senior executive.

Insights

Corporate Governance Expert

TL;DR: A senior executive disclosed a small open-market purchase; disclosure is routine and complies with Section 16 reporting.

The filing shows a non-derivative acquisition of 176 common shares at $22.15 on 09/08/2025 by Jeff W. Dick, the company's Chairman, President and CEO and a director. Post-transaction holdings total 194,690 shares directly, with 55,091 held indirectly via a 401(k) plan. The Form 4 was executed by an attorney-in-fact, which is permitted when properly authorized. This is a standard insider transaction report with no additional corporate governance red flags visible in the document.

Securities Analyst

TL;DR: Insider purchase disclosed; transaction size is small relative to total holdings and appears clerical in nature.

The report documents a purchase coded 'P' of 176 shares at $22.15. The disclosed ownership levels (194,690 direct; 55,091 indirect) are explicit in the filing. There are no derivative transactions, no dispositions, and no indication of Rule 10b5-1 plan usage in the text provided. As filed, the transaction is a straightforward update to beneficial ownership records.

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

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^*

DICK JEFF W

(Last) (First) (Middle)

10089 FAIRFAX BLVD

(Street)

FAIRFAX VA 22030

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MainStreet Bancshares, Inc. [ MNSB ]

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman, President and CEO

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2025

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	09/08/2025		P		176	A	$22.15	194,690	D
Common Stock								55,091	I	By 401(k) Plan

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:

	/s/ Thomas J. Chmelik, attorney-in-fact	09/08/2025
	** 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 transaction did Jeff W. Dick report on Form 4 for MNSB?

He reported purchasing 176 shares of MainStreet Bancshares common stock on 09/08/2025 at $22.15 per share.

How many MainStreet Bancshares shares does the reporting person own after this transaction?

Directly owns 194,690 shares following the reported purchase; 55,091 shares are listed as indirectly owned via a 401(k) plan.

What roles does the reporting person hold at MainStreet Bancshares according to the filing?

Jeff W. Dick is Chairman, President and CEO and a director of MainStreet Bancshares as stated on the Form 4.

Was this Form 4 signed by the reporting person?

The signature on the form is by an attorney-in-fact (Thomas J. Chmelik) dated 09/08/2025, indicating an authorized representative signed the filing.

Does the filing show any derivative transactions or dispositions?

No. Table II lists no derivative transactions and Table I shows only the non-derivative acquisition of 176 shares.