Exhibit 99.1 FOR IMMEDIATE RELEASE First Commonwealth Announces First Quarter 2024 Earnings; Increases Quarterly Dividend Indiana, PA, April 23, 2024 - First Commonwealth Financial Corporation (NYSE: FCF) today announced financial results for the first quarter of 2024. Financial Summary (dollars in thousands, For the Three Months Ended except per share data) March 31, December 31, March 31, 2024 2023 2023 Reported Results Net income $ 37,549 $ 44,827 $ 30,224 Diluted earnings per share $ 0.37 $ 0.44 $ 0.30 ...