[Form 3] MainStreet Bancshares, Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

MainStreet Bancshares (MNSB) filed a Form 3 reporting an insider’s initial beneficial ownership. The reporting person is a Director and, as of 10/22/2025, holds 630 shares of Common Stock with direct (D) ownership. The derivative securities table shows no listed derivative positions in this excerpt. The filing is signed by /s/ Richard A. Vari, attorney-in-fact.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Hall Wendy Adeler

(Last) (First) (Middle)

10089 FAIRFAX BLVD

(Street)

FAIRFAX VA 22030

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/22/2025

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	630	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Richard A. Vari, attorney-in-fact	10/22/2025
	** 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 5 (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 does the MNSB Form 3 report?

It reports a Director’s initial beneficial ownership, listing 630 shares of Common Stock held directly as of 10/22/2025.

How many MainStreet Bancshares (MNSB) shares are owned?

The filing shows 630 shares of Common Stock beneficially owned.

What is the reporting person’s relationship to MNSB?

The reporting person is a Director.

Is the ownership direct or indirect?

The Form 3 lists ownership as Direct (D).

Are there any derivative securities disclosed?

The derivative securities table shows no listed derivative positions in this excerpt.

What is the event date on the Form 3?

The date of the event requiring the statement is 10/22/2025.

Who signed the filing?

The filing is signed by /s/ Richard A. Vari, attorney-in-fact.