CULLEN/FROST REPORTS FIRST QUARTER RESULTS

• The Common Equity Tier 1, Tier 1 and Total Risk-Based Capital Ratios at the end of the first quarter of 2026 were 14.07 percent, 14.51 percent and 15.89 percent, respectively, and continue to be in excess of well-capitalized levels and exceed Basel III minimum requirements.
• Net interest income on a taxable-equivalent basis was $460.8 million for the first quarter of 2026, an increase of 5.6 percent, compared to $436.4 million for the first quarter of 2025. Net interest margin was 3.74 percent for the first quarter of 2026 compared to 3.60 percent for the first quarter of 2025 and 3.66 percent for the fourth quarter of 2025.
• Non-interest income for the first quarter of 2026 totaled $136.3 million, an increase of $12.3 million, or 9.9 percent, from the $124.0 million reported for the first quarter of 2025. Trust and investment management fees increased $5.0 million, or 11.7 percent, compared to the first quarter of 2025. The increase in trust and investment management fees during the first quarter was primarily related to increases in investment management fees (up $4.3 million) and miscellaneous fees (up $1.3 million).  Investment management fees are generally based on the market value of assets within customer accounts and are thus impacted by price movements in the equity and bond markets. Service charges on deposit accounts increased $3.5 million, or 12.4 percent, compared to the first quarter of 2025. The increase was primarily related to an increase in commercial service charges (up $2.2 million), reflecting growth in billable treasury management services, lower earnings credit rates on analyzed accounts, and higher fees on non-analyzed accounts, as well as an increase in consumer overdraft charges (up $1.3 million) due to higher volumes associated with account growth. Other non-interest income increased $1.9 million, or 14.9 percent, compared to the first quarter of 2025. The increase during the first quarter was primarily related to increases in sundry and other miscellaneous income (up $2.2 million), life insurance proceeds (up $632,000), and income from customer derivatives and securities trading (up $456,000), partly offset by decreases in gains on the sale of foreclosed and other assets (down $2.1 million).
• Non-interest expense was $365.7 million for the first quarter of 2026, up $17.6 million, or 5.1 percent, compared to the $348.1 million reported for the first quarter a year earlier. Salaries and wages expense increased $5.3 million, or 3.3 percent, compared to the first quarter of 2025. The increase in salaries and wages was primarily related to increases in salaries due to annual merit and market increases and to an increase in stock compensation. Employee benefits expense increased by $2.5 million, or 5.9 percent, compared to the first quarter of 2025. The increase in employee benefits expense was primarily related to increases in medical/dental benefits expense (up $1.7 million) and payroll taxes (up $792,000). Technology, furniture, and equipment expense increased $1.6 million, or 3.9 percent, compared to the first quarter of 2025. The increase was primarily related to increased cloud services expense (up $1.8 million). Other non-interest expense increased $6.7 million, or 10.4 percent, compared to the first quarter of 2025. The increase included increases in deposit fraud losses related to various payment systems (up $2.4 million), advertising/promotions expense (up $1.9 million), and professional services expense (up $532,000).
• For the first quarter of 2026, the company reported a credit loss expense of $6.7 million, and reported net charge-offs of $5.7 million. This compares to a credit loss expense of $11.2 million and net charge-offs of $5.8 million for the fourth quarter of 2025 and a credit loss expense of $13.1 million and net charge-offs of $9.7 million for the first quarter of 2025. The allowance for credit losses on loans as a percentage of total loans was 1.28 percent at March 31, 2026, compared to 1.29 percent at December 31, 2025 and 1.32 percent at March 31, 2025. Non-accrual loans were $72.4 million at the end of the first quarter of 2026, compared to $70.5 million at the end of the fourth quarter of 2025 and $83.5 million at the end of the first quarter of 2025.
• During the first quarter of 2026, we repurchased 507,753 shares at a total cost of $70.0 million. As of the end of the first quarter, we had $230 million remaining under our current $300 million repurchase authorization, which expires in January of 2027.

The Cullen/Frost board declared a second-quarter cash dividend of $1.03 per common share, representing a 3.0 percent increase compared to the previous quarterly dividend of $1.00 per share. The dividend on common stock is payable June 15, 2026 to shareholders of record on May 29 of this year. The board of directors also declared a cash dividend of $11.125 per share of Series B Preferred Stock (or $0.278125 per depositary share). The depositary shares representing the Series B Preferred Stock are traded on the NYSE under the symbol "CFR PrB." The Series B Preferred Stock dividend is payable June 15, 2026 to shareholders of record on May 29 of this year.

Cullen/Frost Bankers, Inc. will host a conference call on Thursday, April 30, 2026, at 1 p.m. Central Time (CT) to discuss the results for the quarter. The media and other interested parties are invited to access the call in a "listen only" mode at 1-877-709-8150 or via webcast on our investor relations website linked below. Playback of the conference call will be available after 5 p.m. CT on the day of the call until midnight Sunday, May 3, 2026 at 1-877-660-6853 with Conference ID # of 13759870. A replay of the call will also be available by webcast at the URL listed below after 5 p.m. CT on the day of the call.

Cullen/Frost investor relations website: https://investor.frostbank.com/ 

Cullen/Frost Bankers, Inc. (NYSE: CFR) is a financial holding company, headquartered in San Antonio, with $52.7 billion in assets at March 31, 2026. One of the 50 largest U.S. banks, Frost provides a wide range of banking, investments and insurance services to businesses and individuals across Texas in the Austin, Dallas, Fort Worth, Gulf Coast, Houston, Permian Basin, and San Antonio regions. Founded in 1868, Frost has helped clients with their financial needs during three centuries. Additional information is available at www.frostbank.com.

Forward-Looking Statements and Factors that Could Affect Future Results

Certain statements contained in this Earnings Release that are not statements of historical fact constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 (the "Act"), notwithstanding that such statements are not specifically identified as such. In addition, certain statements may be contained in our future filings with the SEC, in press releases, and in oral and written statements made by us or with our approval that are not statements of historical fact and constitute forward-looking statements within the meaning of the Act. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations of Cullen/Frost or its management or Board of Directors, including those relating to products, services or operations; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as "believes," "anticipates," "expects," "intends," "targeted," "continue," "remain," "will," "should," "may," and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

Forward-looking statements involve risks and uncertainties that may cause actual results to differ materially from those in such statements. Factors that could cause actual results to differ from those discussed in the forward-looking statements include, but are not limited to:

• The effects of and changes in trade and monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board and the implementation of tariffs and other protectionist trade policies.
• Inflation, interest rate, securities market, and monetary fluctuations.
• Local, regional, national, and international economic conditions and the impact they may have on us and our customers and our assessment of that impact.
• Changes in the financial performance and/or condition of our borrowers.
• Changes in the mix of loan geographies, sectors and types or the level of non-performing assets and charge-offs.
• Changes in estimates of future credit loss reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements.
• Changes in our liquidity position.
• Impairment of our goodwill or other intangible assets.
• The timely development and acceptance of new products and services and perceived overall value of these products and services by users.
• Changes in consumer spending, borrowing, and saving habits.
• Greater than expected costs or difficulties related to the integration of new products and lines of business.
• Technological changes.
• The cost and effects of cyber incidents or other failures, interruptions, or security breaches of our systems or those of our customers or third-party providers.
• Acquisitions and integration of acquired businesses.
• Changes in the reliability of our vendors, internal control systems or information systems.
• Our ability to increase market share and control expenses.
• Our ability to attract and retain qualified employees.
• Changes in our organization, compensation, and benefit plans.
• The soundness of other financial institutions.
• Volatility and disruption in national and international financial and commodity markets.
• Changes in the competitive environment in our markets and among banking organizations and other financial service providers.
• Government intervention in the U.S. financial system.
• Political or economic instability.
• Acts of God or of war or terrorism.
• The potential impact of climate change.
• The impact of pandemics, epidemics, or any other health-related crisis.
• The costs and effects of legal and regulatory developments, the resolution of legal proceedings or regulatory or other governmental inquiries, the results of regulatory examinations or reviews and the ability to obtain required regulatory approvals.
• The effect of changes in laws and regulations (including laws and regulations concerning taxes, banking, securities, and insurance) and their application with which we and our subsidiaries must comply.
• The effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters.
• Our success at managing the risks involved in the foregoing items.

In addition, military conflict between the U.S. and Iran has contributed to heightened uncertainty and volatility in global markets. Such conditions can result in price volatility in energy and commodity markets, changes in inflation expectations, increased financial market volatility, and potential disruptions to global supply chains and trade flows. The timing, magnitude, and duration of these impacts are uncertain and may evolve rapidly based on geopolitical developments, policy responses, and market conditions. Heightened geopolitical uncertainty may influence Federal Reserve policy decisions and broader financial conditions, including interest‑rate volatility, funding costs, and liquidity conditions. These factors could adversely affect our funding profile; customer credit quality, particularly in sectors sensitive to energy prices, global trade, or economic cycles; and the market value of certain financial instruments. Prolonged volatility could also negatively impact economic growth, increase borrower stress, and contribute to higher credit losses, any of which could have a material adverse effect on our business, financial condition, and results of operations. We will continue to monitor these developments and adjust our risk management and capital planning strategies as appropriate.

Furthermore, financial markets, international relations, and global supply chains continue to be significantly impacted by evolving U.S. trade policies and practices. The scope, duration, and ultimate impact of tariffs on us, our customers, financial markets, and the U.S. and global economies remain uncertain, particularly following the U.S. Supreme Court's February 20, 2026 ruling that the International Emergency Economic Powers Act ("IEEPA") does not authorize presidential tariff authority, which invalidated prior IEEPA‑based tariffs. This ruling has introduced uncertainty regarding the timing and extent of potential tariff refunds, as well as the likelihood of new or replacement tariffs imposed under alternative statutory authorities under U.S. trade law. These developments may affect customer cash flows, credit conditions, supply chain decisions, and overall market activity and volatility, thereby increasing our exposure to operational, credit, and market risks. If such uncertainty negatively affects borrower financial condition or market stability, it could have a material adverse effect on our business, financial condition, and results of operations.

Forward-looking statements speak only as of the date on which such statements are made. We do not undertake any obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made, or to reflect the occurrence of unanticipated events.

A.B. Mendez
Investor Relations
210.220.5234

or

Bill Day
Media Relations
210.220.5427

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SOURCE Cullen/Frost Bankers, Inc.