EXHIBIT 99.1 ENTERPRISE FINANCIAL SERVICES CORP REPORTS SECOND QUARTER 2026 RESULTS Highlights • Earnings - Net income in the second quarter 2026 was $40.9 million, a decrease of $8.4 million and $10.5 million compared to the linked and prior year quarters, respectively. Earnings per diluted common share for the second quarter 2026 was $1.09, compared to $1.30 and $1.36 for the linked and prior year ROATCE, tangible common equity to tangible assets, and tangible book value per common share are non-GAAP meas ...