MainStreet Bancshares (MNSB) CRO logs tax-withholding stock disposition in Form 4

Rhea-AI Filing Summary

MainStreet Bancshares, Inc. Chief Risk Officer Michael B. Baboval reported a Form 4 showing a tax-withholding disposition of 738 shares of common stock at $20.36 per share on February 20, 2026. This was used to cover tax liability rather than an open-market sale. After this, he directly owned 6,441 shares, plus 3,806 shares held indirectly through a 401(k).

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^*

Baboval Michael B

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/20/2026

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	02/20/2026		F		738	D	$20.36	6,441	D
Common Stock								3,806	I	By 401(k)

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	02/20/2026
	** 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 MNSB Chief Risk Officer Michael Baboval report?

Michael Baboval reported a tax-withholding disposition of 738 MainStreet Bancshares shares. The shares were valued at $20.36 each and were used to satisfy tax obligations associated with equity compensation, rather than representing a discretionary open-market stock sale.

Was the MNSB insider transaction an open-market sale of shares?

No, the MNSB insider transaction was a tax-withholding disposition, not an open-market sale. Shares were delivered to cover tax liability related to equity awards, which is a common administrative mechanism rather than a voluntary decision to sell shares in the market.

How many MainStreet Bancshares shares were involved in the tax-withholding disposition?

The filing shows 738 shares of MainStreet Bancshares common stock were used for tax withholding. They were valued at $20.36 per share, reflecting the price used to determine the number of shares required to satisfy the executive’s tax obligations on the related award.

How many MNSB shares does Michael Baboval hold after the reported transaction?

After the reported transaction, Michael Baboval directly held 6,441 MainStreet Bancshares shares. The filing also shows 3,806 additional shares held indirectly through a 401(k), providing a combined view of both his direct and retirement-plan-related share interests.

What does transaction code F mean in the MNSB Form 4 filing?

Transaction code F indicates shares were delivered to pay an exercise price or tax liability. In this MNSB filing, it reflects a tax-withholding disposition of common stock, where shares are surrendered to cover taxes on equity compensation instead of the insider receiving sale proceeds.

Does the MNSB Form 4 indicate buying or selling activity by the executive?

The Form 4 indicates a disposition for tax withholding rather than a typical sale or purchase. Shares were used to satisfy tax obligations tied to equity compensation, so it does not represent a discretionary buy or open-market sell decision by the executive in this instance.