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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
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Contents

EX-13 · Special Cautionary Notice Regarding Forward-Looking Information

Special Cautionary Notice Regarding Forward-Looking Information

Certain matters discussed in this report, excluding historical information, include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and are subject to the safe harbor created by those sections. Although we believe such forward-looking statements are based on reasonable assumptions, no assurance can be given that every objective will be reached. The words “estimate,” “expect,” “intend,” “believe” and “project,” as well as other words or expressions of a similar meaning, are intended to identify forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this report. Such statements are based on current expectations, are inherently uncertain, are subject to risks and should be viewed with caution. Actual results and experience may differ materially from the forward-looking statements as a result of many factors.

Risk factors that could cause actual results to differ materially from any results that we project, forecast, estimate, or budget in forward-looking statements include, among others, the following possibilities:

●Local, regional, national, and international economic business conditions and the impact they may have on us, our customers, and such customers’ ability to transact profitable business with us, including the ability of our borrowers to repay their loans according to their terms or a change in the value of the related collateral.
●Volatility and disruption in national and international financial markets.
●The imposition of new or increased international tariffs and the impact of potential retaliatory tariffs, which may impact our subsidiary banks’ business and operations with Mexico.
●Government intervention in the U.S. financial system.
●The unavailability of funding from the FHLB, the Federal Reserve Bank (“FRB”) or other sources in the future could adversely impact our growth strategy, prospects, and performance.
●Changes in consumer spending, borrowing, and saving habits.
●Changes in interest rates and market prices, including changes in federal regulations on the payment of interest on demand deposits.
●Changes in our ability to retain or access deposits due to changes in public confidence in the banking system and the potential threat of bank-run contagion fueled by, among other factors, economic instability, inflationary pressures, the public’s increased exposure to social media, and the rapid speed at which communication and coordination via social media can occur.
●Changes in the capital markets we utilize, including changes in the interest rate environment that may reduce margins.
●Changes in state and/or federal laws and regulations, including, the impact of the Consumer Financial Protection Bureau (“CFPB”) as a regulator of financial institutions, changes in the accounting, tax, and regulatory treatment of trust-preferred securities, as well as changes in banking, tax, securities, insurance, employment, environmental, and immigration laws and regulations and the risk of litigation that may follow.
●Changes in U.S.—Mexico trade, including reductions in border crossings and commerce, integration, and implementation of the United States-Mexico-Canada Agreement, the possible imposition of tariffs on

imported goods from Mexico, and the potential retaliatory tariffs that Mexico may impose on the United States.

●Political instability in, and strained geopolitical relations between, the United States and Mexico.
●General instability of economic and political conditions in the United States, including inflationary pressures, prolonged elevated interest rates and slower than expected rate reductions, economic slowdown or recession, low productivity growth, declining business investment, concerns regarding the level of U.S. debt, and escalating geopolitical tensions.
●The reduction of deposits from nonresident alien individuals due to the Internal Revenue Service rules requiring U.S. financial institutions to report deposit interest payments made to such individuals.
●The loss of senior management or operating personnel.
●The timing, impact, and other uncertainties of the potential future acquisitions, as well as our ability to maintain our current branch network and enter new markets to capitalize on growth opportunities.
●Additions to our allowance for credit loss (“ACL”) as a result of changes in local, national, or international conditions which adversely affect our customers.
●Greater than expected costs or difficulties related to the development and integration of new products and lines of business.
●Increased labor costs and effects related to health care reform and other laws, regulations, and legal developments impacting labor costs.
●Impairment of carrying value of goodwill could negatively impact our earnings and capital.
●Changes in the soundness of other financial institutions with which we interact.
●Technological changes or system failures or breaches of our network security, as well as other cybersecurity risks, could subject us to increased operating costs, litigation, and other liabilities.
●Potential loss of revenue streams and reduction of lower cost deposits as a source of funds resulting from the rise in bank-like products and services from financial technology companies and other alternative financial providers, including blockchain-based financial products and banking-as-a-service platforms.
●Changes in the regulatory landscape for cryptocurrencies, decentralized finance, and fintech services that favor alternative financial products, which may subject us to additional competitive pressures and reduce the demand for traditional banking services.
●Increased compliance and operational costs associated with investing in, adapting to, integrating, and competing with technological developments that incorporate artificial intelligence (“AI”) into banking services and products.
●Flaws in our introduction and use of AI technologies, which could result in increased exposure to security vulnerabilities, data inconsistencies, operational disruptions, and technological inefficiencies that could hamper customer experience, negatively impact transaction processing, and undermine our risk-management processes.
●Increased cybersecurity and fraud risks resulting from threat actors’ use of AI and other advanced technologies to conduct more sophisticated phishing schemes, social engineering, deepfake impersonation, and other cyberattacks, which could lead to unauthorized access to customer accounts, financial losses, and operational disruptions.
●Acts of war or terrorism.
●Natural disasters or other adverse external events such as pandemics or epidemics.
●Reduced earnings resulting from the write-down of the carrying value of securities held in our securities available-for-sale portfolios.
●The effect of changes in accounting policies and practices by the Public Company Accounting Oversight Board (“PCAOB”), the Financial Accounting Standards Board (“FASB”) and other accounting standards setters.
●The costs and effects of regulatory developments or regulatory or other governmental inquiries and the results of regulatory examinations or reviews and obtaining regulatory approvals.
●The effect of any supervisory and enforcement efforts by the CFPB related to its unfair, deceptive, or abusive acts or practices authority concerning fees charged by financial institutions including late, non-sufficient funds, and overdraft fees, as well as the effect of any other regulatory or legal developments that limit fees and/or overdraft services.
●Monetary and fiscal policies of the U.S. Government, including policies of the U.S. Treasury and the FRB.
●The reduction of income and possible increase in required capital levels related to the adoption of legislation and the implementing rules and regulations, including those that establish debit card interchange fee standards and prohibit network exclusivity arrangements and routing restrictions.
●The increase in required capital levels related to the implementation of capital and liquidity rules of the federal banking agencies that address or are impacted by the Basel III capital and liquidity standards.
●The enhanced due diligence burden imposed on banks related to the banks’ inability to rely on credit ratings under the Dodd-Frank Act.
●The failure or circumvention of our internal controls and risk management, policies, and procedures.

Forward-looking statements speak only as of the date on which such statements are made. It is not possible to foresee or identify all such factors. We make no commitment to update any forward-looking statement, or to disclose any facts, events, or circumstances after the date hereof that may affect the accuracy of any forward-looking statement, unless required by law.

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