Exhibit 99.1 https://files.reportify.cc/media/production/ONB5159ba4b020b Old National Bancorp Reports Fourth Quarter and Full-Year 2025 Results Evansville, Ind. (January 21, 2026) Old National Bancorp (NASDAQ: ONB) reports 4Q25 net income applicable to common shares of $212.6 million, diluted EPS of$0.55; $241.0 million and$0.62 on an adjusted basis, respectively. Full- year net income applicable to common shares of $653.1 million, diluted EPS of$1.79; $808.6 million and$2.21 on an adjusted basis, respe ...