West Bancorporation, Inc.
US ˙ NasdaqGS ˙ US95123P1066

SecurityWTBA / West Bancorporation, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership651,924 shares
Latest Disclosed Value $ 15,509,527
Dimensional Fund Advisors Lp reports 0.27% decrease in ownership of WTBA / West Bancorporation, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 651,924 shares of West Bancorporation, Inc. (US:WTBA) valued at $15,509,272 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 653,688 shares of West Bancorporation, Inc.. This represents a change in shares of -0.27% during the quarter. The current value of the position is $15,704,849 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)
2026-05-07 2026-03-31 13F WEST BANCORPORATION CAP STK 95123P106 651,924 -1,764 -0.27 15,510 6.92 0.0007
2026-02-12 2025-12-31 13F WEST BANCORPORATION CAP STK 95123P106 653,688 -1,872 -0.29 14,506 8.89 0.0030
2025-11-12 2025-09-30 13F WEST BANCORPORATION CAP STK 95123P106 655,560 -13,173 -1.97 13,321 1.48 0.0029
2025-08-12 2025-06-30 13F WEST BANCORPORATION CAP STK 95123P106 668,733 -8,749 -1.29 13,128 -2.82 0.0030
2025-05-13 2025-03-31 13F WEST BANCORPORATION CAP STK 95123P106 677,482 -1,105 -0.16 13,509 -8.05 0.0034
2025-02-13 2024-12-31 13F WEST BANCORPORATION CAP STK 95123P106 678,587 -1,317 -0.19 14,692 13.67 0.0035
2024-11-07 2024-09-30 13F WEST BANCORPORATION CAP STK 95123P106 679,904 6,201 0.92 12,925 7.18 0.0031
2024-08-09 2024-06-30 13F WEST BANCORPORATION CAP STK 95123P106 673,703 -3,679 -0.54 12,059 -0.16 0.0031
2024-05-10 2024-03-31 13F WEST BANCORPORATION CAP STK 95123P106 677,382 -11,404 -1.66 12,078 -17.30 0.0033
2024-02-07 2023-12-31 13F WEST BANCORPORATION CAP STK 95123P106 688,786 296 0.04 14,603 30.05 0.0043
2023-11-09 2023-09-30 13F WEST BANCORPORATION CAP STK 95123P106 688,490 -14,960 -2.13 11,230 -13.29 0.0037
2023-08-09 2023-06-30 13F WEST BANCORPORATION CAP STK 95123P106 703,450 -1,384 -0.20 12,951 0.57 0.0041
2023-05-12 2023-03-31 13F WEST BANCORPORATION CAP STK 95123P106 704,834 1,496 0.21 12,877 75,647.06 0.0043
2023-02-09 2022-12-31 13F WEST BANCORPORATION CAP STK 95123P106 703,338 122 0.02 18 -99.88 0.0053
2022-11-10 2022-09-30 13F WEST BANCORPORATION CAP STK 95123P106 703,216 6,249 0.90 14,634 -13.73 0.0056
2022-08-12 2022-06-30 13F WEST BANCORPORATION CAP STK 95123P106 696,967 8,787 1.28 16,964 -9.41 0.0061
2022-05-13 2022-03-31 13F WEST BANCORPORATION COM 95123P106 688,180 -3,017 -0.44 18,726 -12.80 0.0058
2022-02-09 2021-12-31 13F WEST BANCORPORATION COM 95123P106 691,197 -10,976 -1.56 21,475 1.84 0.0065
2021-11-12 2021-09-30 13F WEST BANCORPORATION COM 95123P106 702,173 -4,585 -0.65 21,087 7.52 0.0068
2021-08-12 2021-06-30 13F WEST BANCORPORATION COM 95123P106 706,758 -9,092 -1.27 19,613 13.38 0.0062
2021-05-14 2021-03-31 13F WEST BANCORPORATION COM 95123P106 715,850 -21,173 -2.87 17,299 21.62 0.0057
2021-03-08 2020-12-31 13F/A-2 WEST BANCORPORATION COM 95123P106 737,023 -19,294 -2.55 14,224 18.73 0.0051
2021-02-11 2020-12-31 13F WEST BANCORPORATION COM 95123P106 737,023 -19,294 14,224 5,136.9528
2020-11-12 2020-09-30 13F WEST BANCORPORATION COM 95123P106 756,317 1,514 0.20 11,980 -9.25 0.0051
2020-08-13 2020-06-30 13F WEST BANCORPORATION COM 95123P106 754,803 -10,399 -1.36 13,201 5.52 0.0058
2020-05-14 2020-03-31 13F WEST BANCORPORATION COM 95123P106 765,202 -12,617 -1.62 12,511 -37.24 0.0065
2020-02-14 2019-12-31 13F WEST BANCORPORATION COM 95123P106 777,819 -11,776 -1.49 19,936 16.14 0.0073
2019-11-12 2019-09-30 13F WEST BANCORPORATION COM 95123P106 789,595 -727 -0.09 17,166 2.36 0.0067
2019-08-13 2019-06-30 13F WEST BANCORPORATION COM 95123P106 790,322 8,530 1.09 16,771 3.74 0.0065
2019-08-12 2019-03-31 13F/A-2 WEST BANCORPORATION COM 95123P106 781,792 28,558 3.79 16,167 12.43 0.0064
2019-05-10 2019-03-31 13F WEST BANCORPORATION COM 95123P106 781,792 28,558 16,167
2019-02-26 2018-12-31 13F/A-1 WEST BANCORPORATION COM 95123P106 753,234 8,672 1.16 14,380 -17.81 0.0065
2019-02-13 2018-12-31 13F WEST BANCORPORATION COM 95123P106 753,234 8,672 14,380
2018-11-13 2018-09-30 13F WEST BANCORPORATION COM 95123P106 744,562 15,033 2.06 17,497 -4.64 0.0067
2018-08-10 2018-06-30 13F WEST BANCORPORATION COM 95123P106 729,529 29,472 4.21 18,348 2.38 0.0073
2018-05-11 2018-03-31 13F WEST BANCORPORATION COM 95123P106 700,057 33,421 5.01 17,921 6.89 0.0075
2018-02-12 2017-12-31 13F WEST BANCORPORATION COM 95123P106 666,636 10,304 1.57 16,766 4.69 0.0070
2017-11-13 2017-09-30 13F WEST BANCORPORATION COM 95123P106 656,332 10,136 1.57 16,015 4.79 0.0070
2017-08-11 2017-06-30 13F WEST BANCORPORATION COM 95123P106 646,196 14,993 2.38 15,283 5.50 0.0071
2017-05-12 2017-03-31 13F WEST BANCORPORATION COM 95123P106 631,203 7,001 1.12 14,486 -6.04 0.0069
2017-02-09 2016-12-31 13F WEST BANCORPORATION COM 95123P106 624,202 -9,370 -1.48 15,418 24.16 0.0077
2016-11-10 2016-09-30 13F WEST BANCORPORATION COM 95123P106 633,572 -3,811 -0.60 12,418 4.80 0.0067
2016-08-09 2016-06-30 13F WEST BANCORPORATION COM 95123P106 637,383 -6,243 -0.97 11,849 0.98 0.0068
2016-05-13 2016-03-31 13F WEST BANCORPORATION COM 95123P106 643,626 -1,922 -0.30 11,734 -7.97 0.0070
2016-02-10 2015-12-31 13F WEST BANCORPORATION COM 95123P106 645,548 4,907 0.77 12,750 6.14 0.0079
2015-11-13 2015-09-30 13F WEST BANCORPORATION COM 95123P106 640,641 1,471 0.23 12,012 -5.28 0.0079
2015-08-14 2015-06-30 13F WEST BANCORPORATION COM 95123P106 639,170 6,255 0.99 12,681 0.74 0.0078
2015-05-14 2015-03-31 13F WEST BANCORPORATION COM 95123P106 632,915 -3,390 -0.53 12,588 16.23 0.0079
2015-02-06 2014-12-31 13F WEST BANCORPORATION COM 95123P106 636,305 -2,390 -0.37 10,830 20.00 0.0071
2014-11-13 2014-09-30 13F WEST BANCORPORATION COM 95123P106 638,695 -343 -0.05 9,025 -7.27 0.0064
2014-08-08 2014-06-30 13F WEST BANCORPORATION COM 95123P106 639,038 -1,370 -0.21 9,733 0.05 0.0068
2014-05-14 2014-03-31 13F WEST BANCORPORATION COM 95123P106 640,408 0 0.00 9,728 -3.98 0.0073
2014-02-12 2013-12-31 13F WEST BANCORPORATION COM 95123P106 640,408 2,355 0.37 10,131 15.06 0.0079
2013-11-13 2013-09-30 13F WEST BANCORPORATION COM 95123P106 638,053 -18,235 -2.78 8,805 14.17 0.0076
2013-08-15 2013-06-30 13F WEST BANCORPORATION COM 95123P106 656,288 656,288 7,712 0.0073
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.