Exhibit 99.1 Old National Bancorp Reports Second Quarter 2025 Results and Names New President and COO Evansville, Ind. (July 22, 2025) Old National Bancorp (NASDAQ: ONB) reports 2Q25 net income applicable to common shares of $121.4 million, diluted EPS of$0.34; $190.9 million and$0.53 on an adjusted basis, respectively. 1 CEO COMMENTARY: "Old National's impressive second quarter results were achieved through a strong focus on the fundamentals: Growing our balance sheet, expanding our fee-based businesses, ...