CFR

• The presentation is dated June 30, 2026 and was posted on the company's investor relations website.
• The filing is under Item 7.01 Regulation FD Disclosure, meaning the information is furnished but not deemed filed for SEC liability purposes.
• The presentation includes forward-looking statements and refers to risk factors in the company's most recent Form 10-Q filed July 30, 2026.
• The company highlights its Texas footprint, 210 financial centers, and 33 consecutive years of dividend increases.

7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Net income available to common shareholders for Q2 2026 was $170.4 million, up from $155.3 million in Q2 2025; diluted EPS was $2.70 versus $2.39 a year earlier.
• Average loans grew 7.4% year-over-year to $22.6 billion; average deposits grew 2.1% to $42.6 billion.
• The board declared a third-quarter common dividend of $1.03 per share, payable September 15, 2026, and a preferred dividend of $11.125 per share (or $0.278125 per depositary share).
• During Q2 2026, the company repurchased 654,955 shares at a total cost of $90.0 million; $140.0 million remained under its repurchase authorization.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Net interest income on a taxable-equivalent basis rose 5.6% to $460.8 million, with net interest margin expanding to 3.74% from 3.60% a year earlier.
• Average loans grew 5.9% to $22.0 billion and average deposits increased 1.4% to $42.2 billion compared to Q1 2025.
• The board increased the quarterly common dividend by 3.0% to $1.03 per share, payable June 15, 2026.
• The company repurchased 507,753 shares for $70.0 million during the quarter, with $230 million remaining under its authorization.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• At the April 29, 2026 Annual Meeting, shareholders elected all 14 director nominees to one-year terms expiring at the 2027 Annual Meeting.
• Shareholders provided nonbinding approval of executive compensation with 50,928,898 votes for, 1,530,796 against, and 153,686 abstentions.
• The ratification of Ernst & Young LLP as independent auditors for fiscal year beginning January 1, 2026 passed with 57,710,536 votes for, 1,237,323 against, and 116,578 abstentions.
• The report was filed under Item 5.07 to disclose the results of these shareholder votes.

5.07 Submission of Matters to a Vote of Security Holders

• The presentation is available on the company's investor relations website at https://investor.frostbank.com.
• The filing is under Item 7.01 Regulation FD Disclosure, meaning the information is furnished but not deemed filed for SEC liability purposes.
• The presentation includes forward-looking statements and refers to risk factors in the company's most recent Form 10-K filed on February 5, 2026.
• The exhibit also includes the cover page interactive data file (XBRL) as Exhibit 104.

7.01 Regulation FD Disclosure · 9.01 Financial Statements and Exhibits

• Dr. Chris Avery notified the company on January 27, 2026, of his decision to retire and not stand for re-election when his term expires at the 2026 Annual Meeting, scheduled for April 29, 2026.
• Shields is CEO and Managing Partner of McCombs Enterprises; Rummel is former San Antonio Office Managing Partner of Ernst & Young (2020-2025).
• Both new directors were determined independent under NYSE and Rule 10A-3 standards and will serve on the Audit and Risk Committees, with compensation consistent with other non-employee directors.
• A press release dated January 30, 2026, was furnished as Exhibit 99.1.

5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 9.01 Financial Statements and Exhibits

• Full-year 2025 net income available to common shareholders was $641.9 million, or $9.92 per diluted share, up 11.5% from $575.9 million, or $8.87 per diluted share, in 2024.
• Q4 2025 net interest income (taxable-equivalent) was $471.2 million, up 8.6% from $433.7 million in Q4 2024; net interest margin was 3.66%.
• Board declared a first-quarter common dividend of $1.00 per share and approved a new $300 million share repurchase program expiring January 27, 2027.
• Q4 2025 non-interest expense was $371.7 million, up 10.6% year-over-year, including $16.2 million in one-time items partly offset by an $8.5 million FDIC assessment reversal.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Net interest income (taxable-equivalent) rose 9.1% to $463.7 million.
• Average loans grew 6.8% to $21.5 billion; average deposits grew 3.3% to $42.1 billion.
• Board declared a $1.00 per common share dividend, payable December 15, 2025.
• Capital ratios remain above well-capitalized levels: CET1 at 14.14%.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits