THORSON JOHN A

Retired Officer at WESTAMERICA BANCORPORATION · on record since Feb 4, 2026
SVP/Chief Financial Officer at WESTAMERICA BANCORPORATION · on record since Sep 28, 2005

Insider trading activity of THORSON JOHN A

Transactions on record: 471; since Oct 17, 2003

Open-market buys: 0

Open-market sells: 140; $20.2M

Companies traded: 1; last filing Jul 11, 2025

Figures computed from official regulatory filings — .

Companies where THORSON JOHN A has traded

WESTAMERICA BANCORPORATION471 tx · $56.1M · Jul 11, 2025

Track record of THORSON JOHN A

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of THORSON JOHN A

Co-insiders of THORSON JOHN A

Baker Robert James JrWESTAMERICA BANCORPORATION
BARTOLINI LOUIS EWESTAMERICA BANCORPORATION
Belew Alisa JaneWESTAMERICA BANCORPORATION
Belton CurtisWESTAMERICA BANCORPORATION
BOWLER E JOSEPHWESTAMERICA BANCORPORATION
Camsey MartinWESTAMERICA BANCORPORATION
Chiesa Melanie MartellaWESTAMERICA BANCORPORATION
DONOHOE BRIAN JWESTAMERICA BANCORPORATION
Ensinger George SWESTAMERICA BANCORPORATION
ENTWISLE ROBERT WWESTAMERICA BANCORPORATION
FINGER JENNIFER JWESTAMERICA BANCORPORATION
HANSEN DENNIS RWESTAMERICA BANCORPORATION
Hassid Michele R.WESTAMERICA BANCORPORATION
Jonas Anela MaryaWESTAMERICA BANCORPORATION
LATNO ARTHUR CWESTAMERICA BANCORPORATION
LEAVITT JESSEWESTAMERICA BANCORPORATION
MAC MILLAN CATHERINE CWESTAMERICA BANCORPORATION
Mihalik Matthew JohnWESTAMERICA BANCORPORATION
MON PERE PATRICK JWESTAMERICA BANCORPORATION
PAYNE DAVID LWESTAMERICA BANCORPORATION
Rizzardi Russell WWESTAMERICA BANCORPORATION
Robinson David LWESTAMERICA BANCORPORATION
SCHNECK JAMES JWESTAMERICA BANCORPORATION
Sousa John Joseph IIIWESTAMERICA BANCORPORATION
SYLVESTER EDWARD BWESTAMERICA BANCORPORATION
Thorsen Cheryl ChristineWESTAMERICA BANCORPORATION
TJIAN HANS T YWESTAMERICA BANCORPORATION
Welch Carter Andrew Mr.WESTAMERICA BANCORPORATION
Wondeh InezWESTAMERICA BANCORPORATION

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
WESTAMERICA BANCORPORATIONListing on record	Jul 11, 2025	ExerciseD (derivative)	-6,462	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 11, 2025	ExerciseD (derivative)	-10	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 8, 2025	ExerciseD (derivative)	-1,093	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 8, 2025	ExerciseD (derivative)	-2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Apr 29, 2025	Sell	-2,243	48.57 USD	$108.9K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 5, 2025	Other	-1,999	51.82 USD	$103.6K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	854	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	AwardD (derivative)	21,900	51.58 USD	$1.1M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	2,180	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	1,560	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jun 26, 2024	Award	35	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Apr 24, 2024	Sell	-1,100	47.24 USD	$52K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 4, 2024	Other	-1,070	45.58 USD	$48.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 26, 2024	AwardD (derivative)	22,700	49.70 USD	$1.1M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 26, 2024	Award	2,170	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2023	Other	-976	55.38 USD	$54.1K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 30, 2023	AwardD (derivative)	22,400	55.47 USD	$1.2M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 30, 2023	Award	1,950	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2022	Other	-996	58.66 USD	$58.4K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 31, 2022	Award	1,990	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 31, 2022	AwardD (derivative)	20,600	58.51 USD	$1.2M	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2021	Other	-996	61.09 USD	$60.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 2, 2021	Other	-996	61.09 USD	$60.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 2, 2021	Other	-994	61.09 USD	$60.7K	SEC
WESTAMERICA BANCORPORATIONListing on record	Feb 1, 2021	AwardD (derivative)	17,400	57.08 USD	$993.2K	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
WESTAMERICA BANCORPORATIONListing on record	Jul 11, 2025	ExerciseD (derivative)	-6,462	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 11, 2025	ExerciseD (derivative)	-10	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 8, 2025	ExerciseD (derivative)	-1,093	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jul 8, 2025	ExerciseD (derivative)	-2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Apr 29, 2025	Sell	-2,243	48.57 USD	$108.9K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 5, 2025	Other	-1,999	51.82 USD	$103.6K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	854	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	AwardD (derivative)	21,900	51.58 USD	$1.1M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	2,180	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 27, 2025	Award	1,560	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jun 26, 2024	Award	35	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Apr 24, 2024	Sell	-1,100	47.24 USD	$52K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 4, 2024	Other	-1,070	45.58 USD	$48.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 26, 2024	AwardD (derivative)	22,700	49.70 USD	$1.1M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 26, 2024	Award	2,170	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2023	Other	-976	55.38 USD	$54.1K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 30, 2023	AwardD (derivative)	22,400	55.47 USD	$1.2M	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 30, 2023	Award	1,950	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2022	Other	-996	58.66 USD	$58.4K	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 31, 2022	Award	1,990	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	SEC
WESTAMERICA BANCORPORATIONListing on record	Jan 31, 2022	AwardD (derivative)	20,600	58.51 USD	$1.2M	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 3, 2021	Other	-996	61.09 USD	$60.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 2, 2021	Other	-996	61.09 USD	$60.8K	SEC
WESTAMERICA BANCORPORATIONListing on record	Mar 2, 2021	Other	-994	61.09 USD	$60.7K	SEC
WESTAMERICA BANCORPORATIONListing on record	Feb 1, 2021	AwardD (derivative)	17,400	57.08 USD	$993.2K	SEC