NASDAQ:WABC

Westamerica Bancorporation Stock Insider Trading

Financial Services > Banks - Regional

Buy WABC

*Your capital is at risk

$60.15

+0.250 (+0.417%)

At Close: Jul 31, 2026

Westamerica Bancorporation Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 77.50. In total, the insiders bought 457.56K and sold 196.28M WABC shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	77.50
● Buy	457.56K shares
● Sell	196.28M shares
80% Buy Activity Negligible or No Correlation
Buy Signal High Confidence Jul 20, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 77.5. Confidence increased due to high data reliability score of 100. Supported by overwhelming buy-side pressure (80% buys).

Historical Insider Trades

Date	Type	Person	Role	Amount
Jan 22, 2026 Buy	Common Stock A-Award	Ensinger George S SVP/human Resources Div. Mgr	Officer	986 Value: $50.5K
Jan 12, 2026 Buy	Common Stock	Mihalik Matthew John SVP/treasurer	Officer	0 Value: $0
Dec 31, 2025 Buy	Common Stock J-Other	Thorson John A Insider	Other	0 Value: $0
Dec 31, 2025 Buy	Common Stock J-Other	Bowler E Joseph Insider	Other	0 Value: $0
Jul 10, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	6 462 Value: $321.2K
Jul 10, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	6 462 Value: $321.2K
Jul 09, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	10 Value: $497
Jul 09, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	10 Value: $497
Jul 07, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	1 093 Value: $54.3K
Jul 07, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	1 093 Value: $54.3K
Jul 03, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	2 Value: $99
Jul 03, 2025 Buy	Non-qualified Stock Option (Right to Buy) M-Exempt	Thorson John A SVP/treasurer	Officer	2 Value: $99
Jun 26, 2025 Buy	Common Stock	Thorsen Cheryl Christine SVP/hr Division Manager	Officer	0 Value: $0
Jun 26, 2025 Buy	Common Stock	Thorsen Cheryl Christine SVP/hr Division Manager	Officer	0 Value: $0
Apr 29, 2025 Buy	Common Stock P-Purchase	Wondeh Inez Director	Director	451 Value: $21.9K
Apr 29, 2025 Buy	Common Stock P-Purchase	Wondeh Inez Director	Director	451 Value: $21.9K
Apr 28, 2025 Sell	Common Stock S-Sale	Thorson John A SVP/treasurer	Officer	2 243 Value: $108.9K
Apr 28, 2025 Sell	Common Stock S-Sale	Thorson John A SVP/treasurer	Officer	2 243 Value: $108.9K
Apr 24, 2025 Buy	Common Stock P-Purchase	Camsey Martin Director	Director	63 Value: $3K
Apr 24, 2025 Sell	Common Stock S-Sale	Baker Robert James Jr SVP/banking Division Manager	Officer	710 Value: $34.2K
Apr 24, 2025 Sell	Common Stock S-Sale	Baker Robert James Jr SVP/banking Division Manager	Officer	710 Value: $34.2K
Apr 24, 2025 Buy	Common Stock P-Purchase	Camsey Martin Director	Director	63 Value: $3K
Mar 03, 2025 Sell	Common Stock F-InKind	Baker Robert James Jr SVP/banking Division Manager	Officer	560 Value: $29.0K
Mar 03, 2025 Sell	Common Stock F-InKind	Baker Robert James Jr SVP/banking Division Manager	Officer	560 Value: $29.0K
Mar 03, 2025 Sell	Common Stock F-InKind	Thorson John A SVP/treasurer	Officer	1 999 Value: $103.6K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT WESTAMERICA BANCORPORATION

Westamerica Bancorporation operates as a bank holding company for the Westamerica Bank that provides various banking products and services to individual and commercial customers. The company accepts various deposit products, including retail savings and checking accounts, as well as certificates of deposit. Its loan portfolio includes commercial, commercial and residential real estate, real estate construction, and consumer installment loans, as ...

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