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INTERNATIONAL BANCSHARES CORP

For the period ended Dec 31, 2025. Filed Feb 26, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 26, 2026

IBOC$67.60-1.0%Stored close · as of Nov 6, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

EX-13 · /s/ RSM US LLP

/s/ RSM US LLP

We have served as the Company's auditor since 2007.

Austin, Texas

February 26, 2026

** INTERNATIONAL BANCSHARES CORPORATION AND SUBSIDIARIES**

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.