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

Rhea-AI Filing Summary

MainStreet Bancshares (MNSB) insider and Chairman, President and CEO reported a small open-market stock purchase. On 11/24/2025, the reporting person bought 106 shares of common stock at a price of $18.99 per share, coded as a purchase transaction. Following this trade, the insider directly owned 194,796 shares of MainStreet Bancshares common stock and held an additional 55,091 shares indirectly through a 401(k) plan. The filing was made by one reporting person and reflects continued equity ownership by a senior executive and director.

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
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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)
11/24/2025

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	11/24/2025		P		106	A	$18.99	194,796	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/ Richard A. Vari, attorney-in-fact	11/24/2025
	** 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 MainStreet Bancshares (MNSB) report on this Form 4?

The Form 4 reports that a senior insider of MainStreet Bancshares (MNSB) purchased 106 shares of common stock on 11/24/2025 in an open-market transaction.

At what price were the MainStreet Bancshares (MNSB) shares purchased?

The insider purchase of MainStreet Bancshares common stock was made at a price of $18.99 per share.

How many MainStreet Bancshares (MNSB) shares does the insider own after this transaction?

After the reported transaction, the insider directly owned 194,796 shares of MainStreet Bancshares common stock and indirectly held 55,091 shares through a 401(k) plan.

What is the insider’s role at MainStreet Bancshares (MNSB)?

The reporting person is a Director and an Officer, serving as Chairman, President and CEO of MainStreet Bancshares.

Was this MainStreet Bancshares (MNSB) Form 4 filed by more than one reporting person?

No. The document indicates that the Form 4 was filed by one reporting person, not a group filing.

Does the Form 4 mention any derivative securities for MainStreet Bancshares (MNSB)?

The Form 4 includes a table for Derivative Securities, but in this excerpt no specific derivative security transactions are listed with amounts or dates.