International Bancshares Corporation
DE ˙ DB ˙ US4590441030
59,50 € ↓ -1,50 (-2,46%)
2026-06-04
AKTIENPREIS
SecurityDE:IB4 / International Bancshares Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership13,988 shares
Latest Disclosed Value $ 941,253
XTX Topco Ltd ownership in IB4 / International Bancshares Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 13,988 shares of International Bancshares Corporation (DE:IB4) valued at $825,292 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2025 disclosing 0 shares of International Bancshares Corporation. The current value of the position is $832,286 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)
2026-05-15 2026-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 13,988 13,988 941 0.0164
2025-11-14 2025-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 0 -15,775 -100.00 0 -100.00
2025-08-12 2025-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 15,775 9,659 157.93 1,050 172.47 0.0435
2025-05-08 2025-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 6,116 6,116 386 0.0197
2024-02-13 2023-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 0 -9,588 -100.00 0 -100.00
2023-11-13 2023-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 9,588 2,951 44.46 416 41.64 0.0710
2023-08-14 2023-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 6,637 1,060 19.01 293 23.11 0.0526
2023-05-12 2023-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 5,577 5,577 239 0.0501
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.