United Security SVP disposes shares in merger

United Security Bancshares senior vice president and chief risk officer Robert C. Oberg Jr. disposed of 29,469.392 shares of common stock back to the company at $10.51 per share.

Rhea-AI Filing Summary

United Security Bancshares senior vice president and chief risk officer Robert C. Oberg Jr. disposed of 29,469.392 shares of common stock back to the company at $10.51 per share. The disposition occurred on April 1, 2026 in connection with a merger into Community West Bancshares, where each United Security share was converted into the right to receive 0.4520 of a Community West common share. Following this transaction, Oberg Jr. held no United Security common stock.

Insider Trade Summary

Disposition: 29,469.392 shares

Disposition 1 txn

Insider OBERG ROBERT C JR

Role SVP & CHIEF RISK OFFICER

Type	Security	Shares	Price	Value
Disposition	Common Stock	29,469.392	$10.51	$310K

Holdings After Transaction: Common Stock — 0 shares (Direct)

Footnotes (2)

1. F1. 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 (the "Effective Time"), 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"); each outstanding unvested Company restricted stock award automatically vested in full and became entitled to the Merger Consideration.
2. F2. For disclosure purposes only.

Key Figures

Shares disposed: 29,469.392 shares Disposition price: $10.51 per share Post-transaction holdings: 0 shares +1 more

4 metrics

Shares disposed 29,469.392 shares Issuer disposition of common stock

Disposition price $10.51 per share Value used to report issuer disposition

Post-transaction holdings 0 shares United Security common stock held after transaction

Merger exchange ratio 0.4520 shares Community West shares per United Security share

Key Terms

Agreement and Plan of Merger, Merger Consideration, restricted stock award, disposition to issuer

4 terms

Agreement and Plan of Merger financial

"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

"was converted into the right to receive 0.4520 of a share of common stock of Community West (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.

restricted stock award financial

"each outstanding unvested Company restricted stock award automatically vested in full and became entitled to the Merger Consideration"

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""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did UBFO executive Robert C. Oberg Jr. report?

Robert C. Oberg Jr., SVP & Chief Risk Officer of United Security Bancshares, reported disposing of 29,469.392 common shares back to the issuer. The disposition occurred on April 1, 2026 and was tied to the company’s merger into Community West Bancshares under a previously signed agreement.

How many United Security (UBFO) shares were disposed of in this Form 4?

The Form 4 shows a disposition of 29,469.392 shares of United Security Bancshares common stock. These shares were returned to the issuer in a single transaction on April 1, 2026 in connection with the completion of a merger into Community West Bancshares under a merger agreement.

What price per share applied to the United Security Bancshares disposition?

The reported disposition of United Security Bancshares common stock was valued at $10.51 per share. This issuer disposition coincided with the company’s merger into Community West Bancshares and reflects the transaction value used to report the insider’s return of shares to the company.

Why did United Security Bancshares shares convert in the Community West merger?

The shares converted because of an Agreement and Plan of Merger between Community West Bancshares and United Security Bancshares. At the effective time, each United Security common share (other than excluded or dissenting shares) became the right to receive 0.4520 Community West common shares as merger consideration.

What merger consideration did UBFO shareholders receive per share?

Under the merger terms, each United Security Bancshares common share, other than excluded and dissenting shares, was converted into the right to receive 0.4520 of a Community West Bancshares common share. Outstanding unvested United Security restricted stock awards also fully vested and became entitled to this same merger consideration ratio.

What are Oberg Jr.’s United Security Bancshares holdings after this disposition?

After the reported issuer disposition, Robert C. Oberg Jr. held zero shares of United Security Bancshares common stock. The transaction exhausted his reported direct holdings as the company completed its merger into Community West Bancshares and United Security shares converted into the specified stock consideration.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/03/2026 - 08:09 PM Learn about SEC filing dates

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

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^*

OBERG ROBERT C JR

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & CHIEF RISK OFFICER

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/01/2026		D		29,469.392	D	$10.51(1)	0	D(2)

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. 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 (the "Effective Time"), 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"); each outstanding unvested Company restricted stock award automatically vested in full and became entitled to the Merger Consideration.

2. For disclosure purposes only.

Remarks:

	/S/ ROBERT C OBERG	04/01/2026
	** 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.
* Form 4: SEC 1474 (03-26)