What does CUSIP 957090103 represent in this 13F holders report?

CUSIP 957090103 is the security identifier for WABC - WESTAMERICA BANCORPORATION - Common Stock used to aggregate holder disclosures.

How many institutions held WABC - WESTAMERICA BANCORPORATION - Common Stock in Q3 2026?

18 institutional investors reported WABC - WESTAMERICA BANCORPORATION - Common Stock for Q3 2026. Use the holders table for investor-level position and value details.

WESTAMERICA BANCORPORATION - Common Stock (WABC)

CUSIP: 957090103

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common Stock
Total 13F shares: 296,420
Total 13F value: $17,310,519
Share change: +216,952
SEC-reported price per share: $58.32
Number of holders: 18
Value change: +$12,643,613
Number of buys: 7
Number of sells: 8
Shares outstanding: 23,591,229

Security key

957090103

Report period

Q3 2026

Institutions

Top holders

WABC full security history Ownership snapshot Full 13F holder table WESTAMERICA BANCORPORATION SEC filings WESTAMERICA BANCORPORATION company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 957090103

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of WABC - WESTAMERICA BANCORPORATION - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

AMERICAN CENTURY INVESTME...

Disclosed value leader

BlackRock, Inc.

Comparable rows

15/15

Latest evidence

24 Jul 2026

13D/G 13F 3/4/5 Lead comparable stake: 8.3% 13D/G row: AMERICAN CENTURY INVESTMENT MANAGEMENT INC Showing 1-6 of 15 holder rows.

Quick read

AMERICAN CENTURY INVESTMENT MANAGEMENT INC leads the comparable SEC ownership view at 8.3%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens AMERICAN CENTURY INVESTMENT MANAGEMENT INC's linked filing trail.

Comparable ownership Top 5

AMERICAN CENTURY INVESTMENT MANAG... 8.3%

VANGUARD PORTFOLIO MANAGEMENT LLC 7.3%

STATE STREET CORP 5.9%

VANGUARD CAPITAL MANAGEMENT LLC 5.3%

George S. Ensinger 0.03%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	13D/G 13D/G	8.3%	$112,882,851 1,958,072 shares	$0	30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC	13F 13D/G Company · Vanguard Portfolio Management 13F 13D/G	7.3% from 13D/G	$100,950,242 1,720,645 shares	—	30 Jun 2026
STATE STREET CORP	13F 13D/G Company · STATE STREET CORPORATION 13F 13D/G	5.9% from 13D/G	$81,790,322 1,394,074 shares	—	30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC	13D/G 13F Vanguard Capital Management · Company 13D/G 13F	5.3%	$66,664,701 1,278,326 shares	$0	31 Mar 2026
George S. Ensinger	3/4/5 SVP/Human Resources Div. Mgr 3/4/5	0.03%	$365,807 7,227 shares	—	02 Mar 2026
Brian J. Donohoe	3/4/5 SVP/Chief Information Officer 3/4/5	0.03%	$1,378,939 6,136 shares mixed-class rows	—	20 Jul 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

296,420

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

214

Q3 2026 holders

Holder diff

-196

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend