STOCK TITAN

First US Bancshares (FUSB) exec nets shares after option exercise

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

FIRST US BANCSHARES, INC. senior executive Eric H. Mabowitz reported compensation-related stock transactions in company common stock. On 2026-07-08, he exercised stock options to acquire a total of 11,600 shares at exercise prices of $10.01, $11.71, and $14.11 per share. To cover tax obligations, he had a total of 9,353 shares withheld at $16.95 per share, coded as tax-withholding dispositions rather than open-market sales. Following these transactions, he directly owned 19,302 shares and indirectly held 83 shares through the First US Bancshares, Inc. 401(k) Plan.

Positive

  • None.

Negative

  • None.
Insider Mabowitz Eric H
Role SEVP, CRO, CCO, & CRA Officer
Type Security Shares Price Value
Exercise Stock Option (right to buy) 5,000 $0.00 --
Exercise Stock Option (right to buy) 3,600 $0.00 --
Exercise Stock Option (right to buy) 3,000 $0.00 --
Exercise Common Stock, $.01 par value 5,000 $14.11 $71K
Tax Withholding Common Stock, $.01 par value 4,408 $16.95 $75K
Exercise Common Stock, $.01 par value 3,600 $11.71 $42K
Tax Withholding Common Stock, $.01 par value 2,813 $16.95 $48K
Exercise Common Stock, $.01 par value 3,000 $10.01 $30K
Tax Withholding Common Stock, $.01 par value 2,132 $16.95 $36K
holding Common Stock, $.01 par value -- -- --
Holdings After Transaction: Stock Option (right to buy) — 0 shares (Direct, null); Common Stock, $.01 par value — 23,710 shares (Direct, null); Common Stock, $.01 par value — 83 shares (Indirect, 401K)
Footnotes (1)
  1. Based on information provided by Voya, the record keeper of the First US Bancshares, Inc. 401(k) Plan as of 7/8/2026. These options were granted on 2/22/2017, and vested in equal installments on each of the first three anniversaries of the date of grant. These options were granted on 2/12/2018, and vested in equal installments on each of the first three anniversaries of the date of grant. These options were granted on 2/27/19, and vested in equal installments on each of the first three anniversaries of the date of grant.
Options exercised 11,600 shares Common stock acquired via option exercises on July 8, 2026
Shares withheld for taxes 9,353 shares Tax-withholding dispositions at $16.95 per share
Direct holdings after transactions 19,302 shares Common stock directly owned following July 8, 2026 activity
Indirect 401(k) holdings 83 shares Held through First US Bancshares, Inc. 401(k) Plan as of July 8, 2026
Option exercise price 1 $10.01/share Stock option (right to buy) conversion price
Option exercise price 2 $11.71/share Stock option (right to buy) conversion price
Option exercise price 3 $14.11/share Stock option (right to buy) conversion price
Tax withholding price $16.95/share Value used for tax-withholding dispositions (code F)
Stock Option (right to buy) financial
"Security title listed as "Stock Option (right to buy)" for derivative transactions."
tax-withholding disposition financial
"Transaction action described as "tax-withholding disposition" for code F entries."
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative exercise/conversion financial
"Transaction action noted as "derivative exercise/conversion" for code M stock option activity."
First US Bancshares, Inc. 401(k) Plan financial
"Footnote references the First US Bancshares, Inc. 401(k) Plan as of 7/8/2026."
derivative security financial
"Code M description states "Exercise or conversion of derivative security" for options."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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FAQ

What insider transactions did FUSB executive Eric Mabowitz report on this Form 4?

Eric H. Mabowitz reported exercising stock options and related tax-withholding dispositions. He exercised 11,600 shares of FIRST US BANCSHARES, INC. common stock and had 9,353 shares withheld to satisfy tax liabilities, all on July 8, 2026, with no open-market buying or selling.

How many FUSB shares did Eric Mabowitz acquire through option exercises?

Eric Mabowitz acquired 11,600 shares of FIRST US BANCSHARES, INC. common stock by exercising stock options. The options had exercise prices of $10.01, $11.71, and $14.11 per share, reflecting long-term equity awards that had previously vested over several years.

Were any of Eric Mabowitz’s FUSB transactions open-market sales or purchases?

The reported FUSB transactions were not open-market sales or purchases. They consisted of option exercises (code M) and tax-withholding dispositions (code F), where shares totaling 9,353 were withheld to pay taxes, a common mechanism for equity compensation events.

What are Eric Mabowitz’s FUSB share holdings after these Form 4 transactions?

After the reported transactions, Eric Mabowitz directly owned 19,302 shares of FIRST US BANCSHARES, INC. common stock. He also indirectly held 83 additional shares through the First US Bancshares, Inc. 401(k) Plan, based on information from the plan’s record keeper as of July 8, 2026.

What do the F and M transaction codes mean in this FUSB Form 4 filing?

Code M indicates the exercise or conversion of a derivative security, here stock options converting into FUSB common shares. Code F reflects payment of the exercise price or tax liability by delivering securities, meaning shares were withheld to cover taxes rather than sold in the open market.

What option grants did Eric Mabowitz exercise in this FUSB Form 4?

Eric Mabowitz exercised stock options for 3,000, 3,600, and 5,000 shares of FIRST US BANCSHARES, INC. common stock. These options had exercise prices of $10.01, $11.71, and $14.11 and were originally granted between 2017 and 2019 with three-year vesting schedules.
SEC Form 4
FORM 4UNITED 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*
Mabowitz Eric H

(Last)(First)(Middle)
3291 US HIGHWAY 280

(Street)
BIRMINGHAM ALABAMA 35243

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
FIRST US BANCSHARES, INC. [ FUSB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
SEVP, CRO, CCO, & CRA Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/08/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock, $.01 par value07/08/2026M5,000A$14.1123,710D
Common Stock, $.01 par value07/08/2026F4,408D$16.9519,302D
Common Stock, $.01 par value07/08/2026M3,600A$11.7122,902D
Common Stock, $.01 par value07/08/2026F2,813D$16.9520,089D
Common Stock, $.01 par value07/08/2026M3,000A$10.0123,089D
Common Stock, $.01 par value07/08/2026F2,132D$16.9520,957D
Common Stock, $.01 par value83I401K(1)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$14.1107/08/2026M5,00002/22/2018(2)02/22/2027Common Stock, $.01 par value5,000$00D
Stock Option (right to buy)$11.7107/08/2026M3,60002/12/2019(3)02/12/2028Common Stock, $.01 par value3,600$00D
Stock Option (right to buy)$10.0107/08/2026M3,00002/27/2020(4)02/27/2029Common Stock, $.01 par value3,000$00D
Explanation of Responses:
1. Based on information provided by Voya, the record keeper of the First US Bancshares, Inc. 401(k) Plan as of 7/8/2026.
2. These options were granted on 2/22/2017, and vested in equal installments on each of the first three anniversaries of the date of grant.
3. These options were granted on 2/12/2018, and vested in equal installments on each of the first three anniversaries of the date of grant.
4. These options were granted on 2/27/19, and vested in equal installments on each of the first three anniversaries of the date of grant.
/s/Beverly J. Dozier, by power of attorney07/09/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)