Company · Ownership research

WESTAMERICA BANCORPORATION WABC

CIK 0000311094

Form 4 transactions dated Nov 1, 2023 to Nov 9, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Oct 23, 2026.

Insider purchases & sales

Purchased: $38.09K
Sold: $5.23M

Nov 1, 2023 – Oct 23, 2026
Available records · partial months are marked ·

20255 of 5 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Apr 29, 2025	Wondeh Inez Director	Purchase	$21.88K 451 shares bought	91.11% added Direct holding	▾
Apr 28, 2025	THORSON JOHN A SVP/Treasurer	Sale	$108.95K 2,243 shares sold	16.21% sold Trust holding	▾
Apr 24, 2025	Camsey Martin Director	Purchase	$2.99K 63 shares bought	New holding Direct holding	▾
Apr 24, 2025	Baker Robert James Jr SVP/Banking Division Manager	Sale	$34.19K 710 shares sold	100.00% sold Direct holding	▾
Jan 29, 2025	Baker Robert James Jr SVP/Banking Division Manager	Sale	$12.85K 248 shares sold	16.35% sold Direct holding	▾

Showing 5 / 5 record groups in 2025. The complete set is available through the API.

WESTAMERICA BANCORPORATION · WABC

Follow the people behind the trades.

Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.

Download CSV
Earlier filings
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 5 of 5 purchase / sale groups and 18 of 18 other groups; the totals and the monthly series cover the whole window.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_insider_transactions
{"action":"list","ticker":"WABC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.