Westamerica officer exercises 7,400 stock options

After the exercise, Belton reported 815.278 common shares held indirectly through an ESOP and zero common shares held directly.

Rhea-AI Filing Summary

Curtis Belton reported disposition transactions in this Form 4 filing. Westamerica Bancorporation (WABC) reports that SVP/Risk Officer Curtis Belton exercised 7,400 non-qualified stock options on October 23, 2026, at an exercise price of $57.08 per share. The option position was reported as zero following the transaction. Belton reported 815.278 common shares held indirectly through an ESOP and zero common shares held directly. The options vest ratably over three years beginning one year from the grant date and expire January 28, 2031.

Insider Trade Summary

7,400 shares exercised/converted

Exercise 3 txns

Insider Belton Curtis

Role SVP/Risk Officer

Type	Security	Shares	Price	Value
Exercise	Non-qualified Stock Option (Right to Buy) F1	7,400	$0.00	$0.00
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Non-qualified Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 815.278 shares (Indirect, ESOP); Common Stock — 0 shares (Direct)

Footnotes (1)

1. F1. Options vest ratably over three years beginning one year from date of grant.

Key Figures

Options exercised: 7,400 options Exercise price: $57.08 per share Options following transaction: 0 options +2 more

5 metrics

Options exercised 7,400 options October 23, 2026

Exercise price $57.08 per share For the options exercised October 23, 2026

Options following transaction 0 options Reported after the October 23, 2026 transaction

Indirect common shares 815.278 shares Held through an ESOP after the transaction

Direct common shares 0 shares Reported after the transaction

Key Terms

Non-qualified Stock Option (Right to Buy), vest ratably, ESOP

3 terms

Non-qualified Stock Option (Right to Buy) financial

"Non-qualified Stock Option (Right to Buy)"

vest ratably financial

"Options vest ratably over three years"

ESOP financial

"815.278 shares held indirectly through an ESOP"

An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.

FAQ

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

How many WABC stock options did Curtis Belton exercise, and at what price?

Curtis Belton exercised 7,400 non-qualified stock options on October 23, 2026, at an exercise price of $57.08 per share.

How did Curtis Belton's WABC options vest, and when do they expire?

The options vest ratably over three years beginning one year from the date of grant and expire January 28, 2031.

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

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Available on EDGAR 10/23/2026 - 06:03 PM EDT Accepted by SEC EDGAR 10/23/2026 - 06:02 PM EDT 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^*

Belton Curtis

(Last) (First) (Middle)

4550 MANGELS BLVD

A-2Y

(Street)

FAIRFIELD CALIFORNIA 94585-1200

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
WESTAMERICA BANCORPORATION [ WABC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/23/2026

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								815.278	I	ESOP
Common Stock								0	D

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
Non-qualified Stock Option (Right to Buy)	$57.08	10/23/2026		M			7,400	01/28/2022(1)	01/28/2031	Common Stock	7,400	$0	0	D

Explanation of Responses:

1. Options vest ratably over three years beginning one year from date of grant.

	/s/ Curtis Belton	10/23/2026
	** 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)