MainStreet Bancshares (MNSB) bank president reports tax withholding stock move

Rhea-AI Filing Summary

MainStreet Bancshares, Inc. President of MainStreet Bank, Hersiburane Abdulhamid, reported a tax-related share disposition and updated holdings. On February 20, 2026, he disposed of 1,314 shares of common stock at $20.36 per share in a tax-withholding disposition, meaning shares were surrendered to cover tax obligations rather than sold in an open-market trade. After this transaction, he directly owned 33,502 common shares. He also indirectly owned 11,157 common shares through a 401(k) plan. A prior award on February 20, 2024 granted 8,367 unvested shares under the 2019 Equity Incentive Plan, which will vest over a three-year period.

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

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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^*

Hersiburane Abdulhamid

(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)
	President, MainSteet Bank

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		1,314	D	$20.36	33,502	D
Common Stock	02/20/2024		A		8,367(1)	A	$22.65	41,869	D
Common Stock								11,157	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:

1. Includes unvested stock awards of 8,367 shares under Issuer's 2019 Equity Incentive Plan which will vest over a 3-year period

	/s/ Richard A. Vari, attorney-in-fact	02/24/2026
	** 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).
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FAQ

What insider transaction did MNSB executive Hersiburane Abdulhamid report?

Hersiburane Abdulhamid reported a tax-withholding disposition of 1,314 MainStreet Bancshares common shares at $20.36 per share. This transaction satisfied tax obligations related to equity compensation rather than representing an open-market sale to third-party buyers.

How many MNSB shares does Abdulhamid hold after the reported Form 4?

After the reported transaction, Abdulhamid directly held 33,502 MainStreet Bancshares common shares. He also indirectly held 11,157 additional shares through a 401(k) plan, reflecting his combined direct and retirement-plan-related exposure to the company’s stock.

Was the MNSB insider transaction a market sale of shares?

No, the filing describes a tax-withholding disposition, not an open-market sale. Shares were delivered to cover tax liabilities associated with equity compensation, which differs from voluntarily selling shares to investors on the open market.

What prior equity award to Abdulhamid is referenced in the MNSB Form 4?

The data references a February 20, 2024 grant of 8,367 common shares as an award under the 2019 Equity Incentive Plan. These shares are unvested and scheduled to vest over a three-year period, subject to plan terms.

How does the Form 4 classify Abdulhamid’s different types of MNSB share ownership?

The filing shows direct ownership of 33,502 common shares in his name and indirect ownership of 11,157 shares held through a 401(k) plan. This distinction clarifies which holdings are personal versus held in a retirement account.