International Bancshares Corporation
US ˙ NasdaqGS ˙ US4590441030

SecurityIBOC / International Bancshares Corporation
InstitutionDiversified Trust Co
Latest Disclosed Ownership24,876 shares
Latest Disclosed Value $ 1,673,906
Diversified Trust Co reports 12.33% increase in ownership of IBOC / International Bancshares Corporation

On April 16, 2026 - Diversified Trust Co filed a 13F-HR form disclosing ownership of 24,876 shares of International Bancshares Corporation (US:IBOC) valued at $1,673,906 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 22,146 shares of International Bancshares Corporation. This represents a change in shares of 12.33% during the quarter. The current value of the position is $1,766,196 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)
2026-04-16 2026-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 24,876 2,730 12.33 1,674 13.73 0.0205
2026-01-09 2025-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 22,146 848 3.98 1,471 0.48 0.0271
2025-10-20 2025-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 21,298 1,146 5.69 1,464 9.17 0.0292
2025-07-11 2025-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 20,152 240 1.21 1,341 6.85 0.0298
2025-04-24 2025-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 19,912 383 1.96 1,256 1.78 0.0311
2025-01-07 2024-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 19,529 1,974 11.24 1,233 17.54 0.0301
2024-10-07 2024-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 17,555 496 2.91 1,050 7.59 0.0264
2024-07-16 2024-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 17,059 1,130 7.09 976 9.06 0.0276
2024-04-18 2024-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 15,929 956 6.38 894 9.96 0.0270
2024-01-08 2023-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 14,973 1,065 7.66 813 35.05 0.0273
2023-11-17 2023-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 13,908 4,456 47.14 603 44.36 0.0228
2023-07-18 2023-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 9,452 0 0.00 418 3.22 0.0152
2023-04-07 2023-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 9,452 1,792 23.39 405 15.10 0.0158
2023-01-17 2022-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 7,660 7,660 0 0.0146
2022-07-12 2022-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 0 -11,372 -100.00 0 -100.00
2022-04-07 2022-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 11,372 -228 -1.97 480 -2.44 0.0168
2022-01-13 2021-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 11,600 815 7.56 492 9.58 0.0162
2022-01-13 2021-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 10,785 0 0.00 449 -3.02 0.0161
2021-07-20 2021-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 10,785 0 0.00 463 -7.58 0.0167
2021-05-10 2021-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 10,785 -112 -1.03 501 22.79 0.0193
2021-01-08 2020-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 10,897 709 6.96 408 53.96 0.0165
2020-10-15 2020-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 10,188 -1,491 -12.77 265 -29.14 0.0122
2020-07-07 2020-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 11,679 11,679 374 0.0189
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.