STOCK TITAN

United Security (UBFO) director logs merger-driven stock and option disposals

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

Rhea-AI Filing Summary

UNITED SECURITY BANCSHARES director Brian Tkacz reported dispositions tied to the completion of the company’s merger with Community West Bancshares. On April 1, 2026, all 16,871 shares of United Security common stock he held were disposed of in the merger and converted into the right to receive 0.4520 shares of Community West common stock per United Security share under the merger terms.

On the same date, 15,000 United Security stock options with an exercise price of $11.05 were disposed of to the issuer. Under the merger agreement, each stock option was converted into the right to receive any value above $10.29, the 20‑day volume‑weighted average price ending March 27, 2026. Following these transactions, no United Security common shares or options are shown as held by Tkacz in this filing.

Positive

  • None.

Negative

  • None.
Insider Tkacz Brian
Role Director
Type Security Shares Price Value
Disposition Stock Options 15,000 $0.00 --
Disposition Common Stock 16,871 $0.00 --
Holdings After Transaction: Stock Options — 0 shares (Direct); Common Stock — 0 shares (Direct)
Footnotes (1)
  1. Disposed of pursuant to the Agreement and Plan of Merger, dated as of December 16, 2025 (the "Merger Agreement"), by and between Community West Bancshares ("Community West") and United Security Bancshares (the "Company"), providing for the Company to merge (the "Merger") with and into Community West with Community West being the surviving entity. The Merger became effective at 12:01 a.m. on April 1, 2026, at which time (i) each share of Company common stock, other than excluded shares and dissenting shares, was converted into the right to receive 0.4520 of a share of common stock of Community West (the "Merger Consideration"); (ii) each outstanding unvested Company restricted stock award automatically vested in full and became entitled to the Merger Consideration. Pursuant to the Merger Agreement, at the effective time of the merger, each of the reporting person's stock options were converted into the right to receive the amount, if any, by which the option's price exceeded $10.29 (20 day VWAP ending 3/27/2026).
Common shares disposed 16,871 shares United Security common stock converted in merger on April 1, 2026
Exchange ratio 0.4520 shares Community West shares per United Security share as Merger Consideration
Stock options disposed 15,000 options United Security stock options held by Tkacz disposed to issuer
Option exercise price $11.05 per share Exercise price of disposed United Security stock options
VWAP reference price $10.29 20-day VWAP ending March 27, 2026 for option settlement
Agreement and Plan of Merger regulatory
"Disposed of pursuant to the Agreement and Plan of Merger, dated as of December 16, 2025"
An Agreement and Plan of Merger is a formal document where two companies agree to combine into one, outlining how the process will happen. It’s like a step-by-step plan for merging, and it matters because it shows both sides have agreed on the details before the official transition takes place.
Merger Consideration financial
"each share of Company common stock ... was converted into the right to receive 0.4520 ... (the "Merger Consideration")"
Merger consideration is the total payment a company or buyer offers to shareholders of a target company in exchange for combining the two businesses, and can include cash, shares in the surviving company, debt assumption, or a mix of these. Investors care because the form and amount affect the deal’s value, tax consequences, immediate cash received versus future ownership, and the risk and upside of holding new shares — similar to choosing between cash now or stock that could grow later.
20 day VWAP financial
"exceeded $10.29 (20 day VWAP ending 3/27/2026)"
restricted stock award financial
"each outstanding unvested Company restricted stock award automatically vested in full"
A restricted stock award is company shares given to an employee or executive that cannot be sold or fully owned until certain conditions—like staying with the company for a set time or hitting performance targets—are met. Think of it as a gift that only becomes yours after you fulfill specific obligations; for investors, these awards matter because they can increase the total shares outstanding when they vest, reveal how management is being paid and motivated, and create potential selling pressure when restrictions lift.
disposition to issuer financial
"transaction_code_description": "Disposition to issuer""
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
X
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*
Tkacz Brian

(Last)(First)(Middle)
2126 INYO STREET

(Street)
FRESNO CALIFORNIA 93721

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
UNITED SECURITY BANCSHARES [ UBFO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026
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)
04/03/2026
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 Stock04/01/2026D16,871D$0(1)0D
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 Options$11.0504/01/2026D15,00012/19/201812/19/2027Common Stock15,000(2)0D
Explanation of Responses:
1. Disposed of pursuant to the Agreement and Plan of Merger, dated as of December 16, 2025 (the "Merger Agreement"), by and between Community West Bancshares ("Community West") and United Security Bancshares (the "Company"), providing for the Company to merge (the "Merger") with and into Community West with Community West being the surviving entity. The Merger became effective at 12:01 a.m. on April 1, 2026, at which time (i) each share of Company common stock, other than excluded shares and dissenting shares, was converted into the right to receive 0.4520 of a share of common stock of Community West (the "Merger Consideration"); (ii) each outstanding unvested Company restricted stock award automatically vested in full and became entitled to the Merger Consideration.
2. Pursuant to the Merger Agreement, at the effective time of the merger, each of the reporting person's stock options were converted into the right to receive the amount, if any, by which the option's price exceeded $10.29 (20 day VWAP ending 3/27/2026).
Remarks:
This amendment to the Reporting Person's Form 4 filed on April 3, 2026, is being filed to (i) clarify that the Reporting Person is no longer subject to Section 16 reporting with respect to the Company, (ii) correct the disposition price of shares of Company common stock, and (iii) make clarifying changes to footnote (1).
/s/ Brian Tkacz04/13/2026
** 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)

FAQ

What insider activity did UNITED SECURITY BANCSHARES (UBFO) report for Brian Tkacz?

Director Brian Tkacz reported dispositions of United Security common stock and stock options on April 1, 2026. His 16,871 common shares were converted into Community West shares, and 15,000 stock options were disposed to the issuer under the merger agreement’s terms.

How were UNITED SECURITY BANCSHARES (UBFO) common shares converted in the Community West merger?

Each United Security common share was converted into the right to receive 0.4520 Community West Bancshares common shares. This exchange ratio, defined as the Merger Consideration, applied to all eligible United Security shares other than excluded or dissenting shares when the merger became effective.

What happened to Brian Tkacz’s UNITED SECURITY BANCSHARES stock options in the merger?

All of Brian Tkacz’s United Security stock options, including 15,000 options at an $11.05 exercise price, were disposed of to the issuer at closing. Under the merger agreement, each option became the right to receive any value above $10.29, the specified 20‑day volume‑weighted average price.

When did the UNITED SECURITY BANCSHARES and Community West Bancshares merger become effective?

The merger between United Security Bancshares and Community West Bancshares became effective at 12:01 a.m. on April 1, 2026. At that time, United Security merged with and into Community West, with Community West surviving as the continuing entity under the merger agreement.

Did UNITED SECURITY BANCSHARES restricted stock awards change in the merger with Community West?

Yes. At the effective time of the merger, each outstanding unvested United Security restricted stock award vested in full. These now‑vested awards became entitled to receive the same Merger Consideration of 0.4520 Community West common shares per United Security share, consistent with the merger terms.

What reference price was used for UNITED SECURITY BANCSHARES options in the merger?

The merger agreement used a $10.29 reference price for United Security Bancshares options, representing the 20‑day volume‑weighted average price ending March 27, 2026. Each option was converted into the right to receive any value by which its terms exceeded this $10.29 price.