International Bancshares Corporation
US ˙ NasdaqGS ˙ US4590441030

SecurityIBOC / International Bancshares Corporation
InstitutionFifth Third Bancorp
Latest Disclosed Ownership12,559 shares
Latest Disclosed Value $ 845,082
Fifth Third Bancorp reports 2,463.06% increase in ownership of IBOC / International Bancshares Corporation

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 12,559 shares of International Bancshares Corporation (US:IBOC) valued at $845,095 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 490 shares of International Bancshares Corporation. This represents a change in shares of 2,463.06% during the quarter. The current value of the position is $916,053 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)
2026-05-01 2026-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 12,559 12,069 2,463.06 845 2,540.63 0.0015
2026-02-02 2025-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 490 16 3.38 33 0.00 0.0001
2025-11-07 2025-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 474 10 2.16 33 6.67 0.0001
2025-07-15 2025-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 464 46 11.00 31 15.38 0.0001
2025-04-15 2025-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 418 99 31.03 26 30.00 0.0001
2025-01-21 2024-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 319 -6 -1.85 20 5.26 0.0001
2024-10-17 2024-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 325 12 3.83 19 11.76 0.0001
2024-07-22 2024-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 313 48 18.11 18 21.43 0.0001
2024-04-23 2024-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 265 0 0.00 15 0.00 0.0001
2024-01-19 2023-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 265 -20 -7.02 14 16.67 0.0001
2023-10-31 2023-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 285 73 34.43 12 33.33 0.0001
2023-07-26 2023-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 212 107 101.90 9 125.00 0.0000
2023-04-24 2023-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 105 32 43.84 4 33.33 0.0000
2023-01-25 2022-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 73 -3 -3.95 3 0.00 0.0000
2022-10-25 2022-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 76 -1 -1.30 3 0.00 0.0000
2022-08-04 2022-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 77 -45 -36.89 3 -40.00 0.0000
2022-04-19 2022-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 122 0 0.00 5 0.00 0.0000
2022-02-01 2021-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 122 42 52.50 5 66.67 0.0000
2021-10-15 2021-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 80 80 3 0.0000
2016-05-13 2016-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 0 -156 -100.00 0 -100.00
2016-02-16 2015-12-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 156 2 1.30 4 0.00 0.0000
2015-11-13 2015-09-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 154 50 48.08 4 33.33 0.0000
2015-08-14 2015-06-30 13F INTERNATIONAL BANCSHARES COR COM 459044103 104 1 0.97 3 0.00 0.0000
2015-05-14 2015-03-31 13F INTERNATIONAL BANCSHARES COR COM 459044103 103 103 3 0.0000
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.