Westamerica (WABC) SVP Cheryl Thorsen granted 6,900 stock options

Rhea-AI Filing Summary

Westamerica Bancorporation executive Cheryl Christine Thorsen received a grant of 6,900 stock options on January 22, 2026 in her role as SVP/HR Division Manager. These are non-qualified stock options with an exercise price of $51.15 per share and relate to the company’s common stock. The options become exercisable over time, vesting ratably over three years beginning one year from the grant date, and are exercisable from January 22, 2027 until their expiration on January 22, 2036. Following this grant, she holds 6,900 derivative securities directly.

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
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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^*

Thorsen Cheryl Christine

(Last) (First) (Middle)

4550 MANGELS BLVD

(Street)

FAIRFIELD CA 94534

(City) (State) (Zip)

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/HR Division Manager

3. Date of Earliest Transaction (Month/Day/Year)
01/22/2026

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

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)	$51.15	01/22/2026		A		6,900		01/22/2027(1)	01/22/2036	Common Stock	6,900	$51.15	6,900	D

Explanation of Responses:

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

	/s/Cheryl Christine Thorsen	01/26/2026
	** 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.

FAQ

What insider transaction did Westamerica Bancorporation (WABC) report for Cheryl Christine Thorsen?

Westamerica Bancorporation reported that SVP/HR Division Manager Cheryl Christine Thorsen received a grant of 6,900 non-qualified stock options on January 22, 2026.

What are the key terms of Cheryl Christine Thorsen’s new stock options at Westamerica Bancorporation (WABC)?

The options are non-qualified stock options with an exercise price of $51.15 per share, covering 6,900 shares of common stock, and are held directly.

When do Cheryl Christine Thorsen’s Westamerica (WABC) stock options vest and become exercisable?

The options vest ratably over three years beginning one year from the grant date and are exercisable starting January 22, 2027 until expiration.

What is the expiration date of the stock options granted to Cheryl Christine Thorsen by Westamerica (WABC)?

The non-qualified stock options granted to Cheryl Christine Thorsen expire on January 22, 2036, giving a long exercise window after vesting.

How many derivative securities does Cheryl Christine Thorsen hold after this Westamerica (WABC) transaction?

After the reported grant, Cheryl Christine Thorsen beneficially owns 6,900 derivative securities (stock options) directly.