Westamerica Bancorporation
US ˙ NasdaqGS ˙ US9570901036

SecurityWABC / Westamerica Bancorporation
InstitutionPrudential Financial Inc
Latest Disclosed Ownership25,652 shares
Latest Disclosed Value $ 1,337,752
Prudential Financial Inc reports 9.57% increase in ownership of WABC / Westamerica Bancorporation

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 25,652 shares of Westamerica Bancorporation (US:WABC) valued at $1,337,752 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 23,412 shares of Westamerica Bancorporation. This represents a change in shares of 9.57% during the quarter. The current value of the position is $1,410,347 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 25,652 2,240 9.57 1,338 19.48 0.0009
2026-02-13 2025-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 23,412 -2,490 -9.61 1,120 -13.52 0.0014
2025-11-13 2025-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 25,902 -1,600 -5.82 1,295 -2.85 0.0015
2025-08-12 2025-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 27,502 1,262 4.81 1,332 0.30 0.0017
2025-05-13 2025-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 26,240 -800 -2.96 1,329 -6.35 0.0019
2025-02-11 2024-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 27,040 -710 -2.56 1,419 3.43 0.0019
2024-11-14 2024-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 27,750 -960 -3.34 1,371 -1.58 0.0019
2024-08-13 2024-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 28,710 -1,510 -5.00 1,393 -5.69 0.0021
2024-05-14 2024-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 30,220 -405 -1.32 1,477 -14.48 0.0021
2024-02-13 2023-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 30,625 -654 -2.09 1,728 27.74 0.0026
2023-11-13 2023-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 31,279 -1,789 -5.41 1,353 6.79 0.0021
2023-08-11 2023-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 33,068 6,685 25.34 1,267 8.39 0.0018
2023-05-12 2023-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 26,383 -3,642 -12.13 1,169 -34.05 0.0018
2023-02-14 2022-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 30,025 2,600 9.48 1,772 22.56 0.0030
2022-11-04 2022-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 27,425 -270 -0.97 1,445 -7.25 0.0024
2022-08-15 2022-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 27,695 -460 -1.63 1,558 -8.51 0.0025
2022-05-13 2022-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 28,155 -320 -1.12 1,703 6.91 0.0023
2022-02-14 2021-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 28,475 -445 -1.54 1,593 -0.13 0.0020
2021-11-15 2021-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 28,920 -230 -0.79 1,595 -5.68 0.0022
2021-08-16 2021-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 29,150 -1,726 -5.59 1,691 -12.75 0.0023
2021-05-12 2021-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 30,876 12 0.04 1,938 13.53 0.0029
2021-08-16 2020-12-31 13F/A-1 WESTAMERICA BANCORPORATION COM 0055 957090103 30,864 -480 -1.53 1,707 0.18 0.0029
2021-02-16 2020-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 30,864 -480 1,707 0.0029
2020-11-16 2020-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 31,344 -530 -1.66 1,704 -6.89 0.0032
2020-08-12 2020-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 31,874 -10,400 -24.60 1,830 -26.36 0.0035
2020-05-12 2020-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 42,274 -540 -1.26 2,485 -14.37 0.0055
2020-02-11 2019-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 42,814 210 0.49 2,902 9.55 0.0043
2019-11-13 2019-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 42,604 -820 -1.89 2,649 -0.97 0.0042
2019-08-08 2019-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 43,424 -10 -0.02 2,675 -0.34 0.0042
2019-05-15 2019-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 43,434 -180 -0.41 2,684 10.54 0.0045
2019-02-07 2018-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 43,614 -942 -2.11 2,428 -9.40 0.0043
2018-11-07 2018-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 44,556 -490 -1.09 2,680 5.26 0.0039
2018-08-13 2018-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 45,046 140 0.31 2,546 -2.38 0.0038
2018-05-04 2018-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 44,906 1,100 2.51 2,608 -0.04 0.0040
2018-02-13 2017-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 43,806 -280 -0.64 2,609 -0.61 0.0036
2017-11-02 2017-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 44,086 -240 -0.54 2,625 5.68 0.0043
2017-08-07 2017-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 44,326 -1,130 -2.49 2,484 -2.13 0.0037
2017-05-10 2017-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 45,456 1,100 2.48 2,538 -9.06 0.0040
2017-02-07 2016-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 44,356 -1,790 -3.88 2,791 18.87 0.0045
2016-11-04 2016-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 46,146 -16,290 -26.09 2,348 -23.67 0.0039
2016-08-09 2016-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 62,436 740 1.20 3,076 2.36 0.0052
2016-05-09 2016-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 61,696 2,000 3.35 3,005 7.67 0.0054
2016-02-12 2015-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 59,696 700 1.19 2,791 6.45 0.0051
2015-11-10 2015-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 58,996 510 0.87 2,622 -11.48 0.0052
2015-08-06 2015-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 58,486 200 0.34 2,962 17.59 0.0053
2015-05-01 2015-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 58,286 400 0.69 2,519 -11.24 0.0044
2015-02-06 2014-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 57,886 -400 -0.69 2,838 4.68 0.0051
2014-11-12 2014-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 58,286 36,203 163.94 2,711 134.92 0.0051
2014-08-13 2014-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 22,083 3,353 17.90 1,154 13.92 0.0020
2014-05-14 2014-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 18,730 300 1.63 1,013 -2.69 0.0019
2014-02-11 2013-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 18,430 -620 -3.25 1,041 9.81 0.0021
2013-11-07 2013-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 19,050 -137 -0.71 948 8.10 0.0020
2013-08-07 2013-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 19,187 19,187 877 0.0019
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.