West Bancorporation, Inc.
US ˙ NasdaqGS ˙ US95123P1066

SecurityWTBA / West Bancorporation, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership119,552 shares
Latest Disclosed Value $ 2,844,142
Northern Trust Corp reports 8.32% increase in ownership of WTBA / West Bancorporation, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 119,552 shares of West Bancorporation, Inc. (US:WTBA) valued at $2,844,142 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 110,367 shares of West Bancorporation, Inc.. This represents a change in shares of 8.32% during the quarter. The current value of the position is $2,777,193 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)
2026-05-14 2026-03-31 13F WEST BANCORPORATION CAP STK 95123P106 119,552 9,185 8.32 2,844 16.13 0.0001
2026-02-17 2025-12-31 13F WEST BANCORPORATION CAP STK 95123P106 110,367 -10,571 -8.74 2,449 -0.33 0.0001
2025-11-14 2025-09-30 13F WEST BANCORPORATION CAP STK 95123P106 120,938 -1,258 -1.03 2,457 2.46 0.0003
2025-08-13 2025-06-30 13F WEST BANCORPORATION CAP STK 95123P106 122,196 -9,518 -7.23 2,399 -8.68 0.0003
2025-05-13 2025-03-31 13F WEST BANCORPORATION CAP STK 95123P106 131,714 -3,190 -2.36 2,626 -10.07 0.0004
2025-02-14 2024-12-31 13F WEST BANCORPORATION CAP STK 95123P106 134,904 2,621 1.98 2,921 16.15 0.0004
2024-11-13 2024-09-30 13F WEST BANCORPORATION COM 95123P106 132,283 -1,538 -1.15 2,515 4.97 0.0004
2024-08-14 2024-06-30 13F WEST BANCORPORATION COM 95123P106 133,821 -5,421 -3.89 2,395 -3.51 0.0004
2024-05-14 2024-03-31 13F WEST BANCORPORATION COM 95123P106 139,242 829 0.60 2,483 -15.41 0.0004
2024-02-13 2023-12-31 13F WEST BANCORPORATION COM 95123P106 138,413 3,806 2.83 2,934 33.67 0.0005
2023-11-13 2023-09-30 13F WEST BANCORPORATION COM 95123P106 134,607 -1,345 -0.99 2,195 -12.27 0.0004
2023-08-11 2023-06-30 13F WEST BANCORPORATION COM 95123P106 135,952 -975 -0.71 2,503 0.04 0.0005
2023-05-15 2023-03-31 13F WEST BANCORPORATION COM 95123P106 136,927 -2,735 -1.96 2,502 -29.90 0.0005
2023-02-13 2022-12-31 13F WEST BANCORPORATION COM 95123P106 139,662 -513 -0.37 3,568 22.32 0.0007
2022-11-14 2022-09-30 13F WEST BANCORPORATION COM 95123P106 140,175 -1,295 -0.92 2,917 -15.28 0.0007
2022-08-12 2022-06-30 13F WEST BANCORPORATION COM 95123P106 141,470 -683 -0.48 3,443 -10.99 0.0007
2022-05-13 2022-03-31 13F WEST BANCORPORATION COM 95123P106 142,153 -5,836 -3.94 3,868 -15.88 0.0007
2022-02-08 2021-12-31 13F WEST BANCORPORATION COM 95123P106 147,989 -2,958 -1.96 4,598 1.43 0.0008
2021-11-15 2021-09-30 13F WEST BANCORPORATION COM 95123P106 150,947 -7,585 -4.78 4,533 3.02 0.0008
2021-08-13 2021-06-30 13F WEST BANCORPORATION CAP STK 95123P106 158,532 -4,013 -2.47 4,400 12.36 0.0008
2021-05-12 2021-03-31 13F WEST BANCORPORATION CAP STK 95123P106 162,545 -12,512 -7.15 3,916 15.89 0.0007
2021-02-11 2020-12-31 13F WEST BANCORPORATION CAP STK 95123P106 175,057 -10,958 -5.89 3,379 14.66 0.0007
2020-11-16 2020-09-30 13F WEST BANCORPORATION CAP STK 95123P106 186,015 -9,565 -4.89 2,947 -13.86 0.0006
2020-08-14 2020-06-30 13F WEST BANCORPORATION COM 95123P106 195,580 2,250 1.16 3,421 8.23 0.0008
2020-05-14 2020-03-31 13F WEST BANCORPORATION CAP STK 95123P106 193,330 4,194 2.22 3,161 -34.80 0.0009
2020-02-14 2019-12-31 13F WEST BANCORPORATION COM 95123P106 189,136 -5,004 -2.58 4,848 14.85 0.0011
2019-11-13 2019-09-30 13F WEST BANCORPORATION COM 95123P106 194,140 1,484 0.77 4,221 3.25 0.0010
2019-08-13 2019-06-30 13F WEST BANCORPORATION COM 95123P106 192,656 -1,413 -0.73 4,088 1.87 0.0010
2019-05-13 2019-03-31 13F WEST BANCORPORATION CAP STK 95123P106 194,069 4,501 2.37 4,013 10.92 0.0010
2019-02-12 2018-12-31 13F WEST BANCORPORATION CAP STK 95123P106 189,568 691 0.37 3,618 -18.50 0.0010
2018-11-14 2018-09-30 13F WEST BANCORPORATION CAP STK 95123P106 188,877 2,284 1.22 4,439 -5.41 0.0011
2018-09-18 2018-06-30 13F/A-1 WEST BANCORPORATION CAP STK 95123P106 186,593 5,339 2.95 4,693 1.14 0.0012
2018-08-14 2018-06-30 13F WEST BANCORPORATION CAP STK 95123P106 187,632 6,378 4,719
2018-05-09 2018-03-31 13F WEST BANCORPORATION COM 95123P106 181,254 -1,144 -0.63 4,640 1.16 0.0012
2018-02-14 2017-12-31 13F WEST BANCORPORATION COM 95123P106 182,398 -26,254 -12.58 4,587 -9.90 0.0012
2017-11-13 2017-09-30 13F WEST BANCORPORATION COM 95123P106 208,652 -6,205 -2.89 5,091 0.20 0.0013
2017-08-11 2017-06-30 13F WEST BANCORPORATION COM 95123P106 214,857 11,114 5.45 5,081 8.66 0.0014
2017-05-12 2017-03-31 13F WEST BANCORPORATION COM 95123P106 203,743 7,674 3.91 4,676 -3.45 0.0013
2017-02-13 2016-12-31 13F WEST BANCORPORATION COM 95123P106 196,069 9,058 4.84 4,843 32.14 0.0015
2016-11-09 2016-09-30 13F WEST BANCORPORATION COM 95123P106 187,011 5,331 2.93 3,665 8.53 0.0011
2016-08-12 2016-06-30 13F WEST BANCORPORATION COM 95123P106 181,680 2,388 1.33 3,377 3.34 0.0011
2016-08-19 2016-03-31 13F/A-1 WEST BANCORPORATION COM 95123P106 179,292 3,272 1.86 3,268 -5.98 0.0011
2016-05-13 2016-03-31 13F WEST BANCORPORATION COM 95123P106 179,292 3,268
2016-02-12 2015-12-31 13F WEST BANCORPORATION COM 95123P106 176,020 1,389 0.80 3,476 6.14 0.0012
2015-11-12 2015-09-30 13F WEST BANCORPORATION COM 95123P106 174,631 174,631 0.00 3,275 0.0011
2015-08-13 2015-06-30 13F WEST BANCORPORATION COM 95123P106 0 -171,082 -100.00 0 -100.00
2015-05-14 2015-03-31 13F WEST BANCORPORATION COM 95123P106 171,082 5,076 3.06 3,403 20.42 0.0010
2015-02-12 2014-12-31 13F WEST BANCORPORATION COM 95123P106 166,006 -4,993 -2.92 2,826 16.97 0.0009
2014-11-13 2014-09-30 13F WEST BANCORPORATION COM 95123P106 170,999 8,770 5.41 2,416 -2.23 0.0008
2014-08-14 2014-06-30 13F WEST BANCORPORATION COM 95123P106 162,229 -19,592 -10.78 2,471 -10.50 0.0008
2014-05-14 2014-03-31 13F WEST BANCORPORATION COM 95123P106 181,821 -17,844 -8.94 2,761 -12.60 0.0009
2014-02-21 2013-12-31 13F/A-1 WEST BANCORPORATION COM 95123P106 199,665 -15,126 -7.04 3,159 6.58 0.0010
2014-02-12 2013-12-31 13F WEST BANCORPORATION COM 95123P106 199,665 3,159
2013-11-13 2013-09-30 13F WEST BANCORPORATION COM 95123P106 214,791 4,259 2.02 2,964 19.81 0.0010
2013-08-09 2013-06-30 13F WEST BANCORPORATION COM 95123P106 210,532 210,532 2,474 0.0009
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.