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WESTAMERICA BANCORPORATION

For the period ended Jun 30, 2026. Filed Aug 5, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 5, 2026

WABC$59.84+0.1%Stored close · as of Nov 6, 2026
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

☑QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2026

or

☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __________ to __________.

Commission file number:001-09383

WESTAMERICA BANCORPORATION

(Exact Name of Registrant as Specified in Its Charter)

California94-2156203
(State or Other Jurisdiction of Incorporation or Organization)(I.R.S. Employer Identification No.)

1108 FIFTH AVENUE, SAN RAFAEL, California 94901

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, Including Area Code (707)863-6000

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, no par valueWABCThe Nasdaq Stock Market, LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☑No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☑Accelerated filer ☐Non-accelerated filer ☐
Smaller reporting company ☐Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐No ☑

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date:

Title of Class Common Stock, No Par ValueShares outstanding as of July 30, 2026 23,111,153

TABLE OF CONTENTS

Page
Forward Looking Statements3
PART I - FINANCIAL INFORMATION
Item 1Financial Statements4
Notes to Unaudited Consolidated Financial Statements9
Item 2Management's Discussion and Analysis of Financial Condition and Results of Operations30
Item 3Quantitative and Qualitative Disclosures about Market Risk52
Item 4Controls and Procedures52
PART II - OTHER INFORMATION
Item 1Legal Proceedings52
Item 1ARisk Factors53
Item 2Unregistered Sales of Equity Securities and Use of Proceeds53
Item 3Defaults upon Senior Securities53
Item 4Mine Safety Disclosures53
Item 5Other Information53
Item 6Exhibits54
Signatures55

-2-

**FORWARD-LOOKING STATEMENTS

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.