Westamerica Bancorporation
US ˙ NasdaqGS ˙ US9570901036

SecurityWABC / Westamerica Bancorporation
InstitutionCitigroup Inc
Latest Disclosed Ownership19,095 shares
Latest Disclosed Value $ 995,804
Citigroup Inc reports 15.11% decrease in ownership of WABC / Westamerica Bancorporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 19,095 shares of Westamerica Bancorporation (US:WABC) valued at $995,804 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 22,495 shares of Westamerica Bancorporation. This represents a change in shares of -15.11% during the quarter. The current value of the position is $1,049,843 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)
2026-05-11 2026-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 19,095 -3,400 -15.11 996 -7.44 0.0004
2026-02-13 2025-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 22,495 -942 -4.02 1,076 -8.20 0.0005
2025-11-10 2025-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 23,437 -20,435 -46.58 1,172 -44.89 0.0005
2025-08-11 2025-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 43,872 -4,897 -10.04 2,125 -13.93 0.0010
2025-05-12 2025-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 48,769 -2,941 -5.69 2,469 -8.96 0.0013
2025-02-12 2024-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 51,710 2,453 4.98 2,713 11.42 0.0016
2024-11-12 2024-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 49,257 4,351 9.69 2,434 11.70 0.0014
2024-08-12 2024-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 44,906 -1,572 -3.38 2,179 -4.05 0.0014
2024-05-10 2024-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 46,478 12,436 36.53 2,272 18.28 0.0015
2024-02-09 2023-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 34,042 14,391 73.23 1,920 126.15 0.0014
2023-12-06 2023-09-30 13F/A-1 WESTAMERICA BANCORPORATION COM 957090103 19,651 -24,260 -55.25 850 -49.49 0.0006
2023-11-09 2023-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 19,651 -24,260 850 0.0003
2023-08-10 2023-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 43,911 30,661 231.40 1,682 186.86 0.0011
2023-05-11 2023-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 13,250 -3,073 -18.83 587 -39.15 0.0004
2023-02-09 2022-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 16,323 3,166 24.06 963 39.97 0.0008
2022-11-10 2022-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 13,157 944 7.73 688 1.18 0.0005
2022-08-10 2022-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 12,213 -11,369 -48.21 680 -52.35 0.0005
2022-05-12 2022-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 23,582 2,511 11.92 1,427 17.35 0.0009
2022-02-10 2021-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 21,071 6,000 39.81 1,216 43.40 0.0007
2021-11-10 2021-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 15,071 -11,022 -42.24 848 -43.99 0.0005
2021-08-10 2021-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 26,093 9,618 58.38 1,514 46.42 0.0009
2021-05-13 2021-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 16,475 9,271 128.69 1,034 159.80 0.0007
2021-02-11 2020-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 7,204 3,663 103.45 398 107.29 0.0002
2020-11-12 2020-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 3,541 -11,206 -75.99 192 -77.33 0.0001
2020-08-12 2020-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 14,747 758 5.42 847 3.04 0.0007
2020-05-12 2020-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 13,989 -5,283 -27.41 822 -37.06 0.0007
2020-02-12 2019-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 19,272 4,222 28.05 1,306 39.53 0.0009
2019-11-08 2019-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 15,050 -12 -0.08 936 0.75 0.0007
2019-08-12 2019-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 15,062 -7,029 -31.82 929 -31.99 0.0008
2019-05-13 2019-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 22,091 -4,642 -17.36 1,366 -8.26 0.0013
2019-02-12 2018-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 26,733 5,770 27.52 1,489 17.99 0.0015
2018-11-13 2018-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 20,963 11,009 110.60 1,262 124.16 0.0011
2018-08-10 2018-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 9,954 -5,341 -34.92 563 -36.60 0.0005
2018-05-11 2018-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 15,295 1,171 8.29 888 5.59 0.0007
2018-02-12 2017-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 14,124 7,938 128.32 841 128.53 0.0007
2017-11-13 2017-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 6,186 -17,190 -73.54 368 -71.91 0.0003
2017-08-11 2017-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 23,376 2,355 11.20 1,310 11.58 0.0012
2017-05-12 2017-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 21,021 -27,518 -56.69 1,174 -61.57 0.0010
2017-02-10 2016-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 48,539 34,682 250.29 3,055 332.72 0.0028
2016-11-10 2016-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 13,857 1,321 10.54 706 14.42 0.0007
2016-08-12 2016-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 12,536 -24,388 -66.05 617 -65.68 0.0006
2016-05-13 2016-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 36,924 15,011 68.50 1,798 75.59 0.0020
2016-02-12 2015-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 21,913 -7,791 -26.23 1,024 -22.42 0.0010
2015-11-13 2015-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 29,704 21,426 258.83 1,320 215.04 0.0012
2015-08-13 2015-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 8,278 2,919 54.47 419 81.39 0.0004
2015-05-14 2015-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 5,359 -7,166 -57.21 231 -62.32 0.0002
2015-02-17 2014-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 12,525 1,927 18.18 613 24.34 0.0005
2014-11-14 2014-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 10,598 -18,396 -63.45 493 -67.48 0.0004
2014-08-14 2014-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 28,994 -11,343 -28.12 1,516 -30.52 0.0015
2014-05-15 2014-03-31 13F WESTAMERICA BANCORPORATION COM 957090103 40,337 -30,419 -42.99 2,182 -45.38 0.0022
2014-02-14 2013-12-31 13F WESTAMERICA BANCORPORATION COM 957090103 70,756 10,002 16.46 3,995 32.20 0.0036
2013-11-14 2013-09-30 13F WESTAMERICA BANCORPORATION COM 957090103 60,754 -11,678 -16.12 3,022 -8.70 0.0028
2013-08-14 2013-06-30 13F WESTAMERICA BANCORPORATION COM 957090103 72,432 72,432 3,310 0.0033
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.