144 0001652712 XXXXXXXX LIVE 0000708955 First Financial Bancorp 001-34762 255 East Fifth Street, Suite 900 Cincinnati OH 45202 877-322-9530 Richard Dennen officer Common Merrill

8890 Lyra Dr 5th Flr Columbus OH 43240

20000 603950.56 98529694 02/04/2026 NASDAQ Common 03/05/2021 Restricted stock vest FIRST FINANCIAL BANCORP N 2934 03/05/2021 NA Common 03/06/2021 Restricted stock vest FIRST FINANCIAL BANCORP N 2061 03/06/2021 na Common 04/30/2021 Restricted stock vest FIRST FINANCIAL BANCORP N 3725 04/30/2021 na Common 03/01/2022 Restricted stock vest FIRST FINANCIAL BANCORP N 1129 03/01/2022 na common 03/05/2022 Restricted stock vest FIRST FINANCIAL BANCORP N 3747 03/05/2022 na common 03/05/2025 Restricted stock vest FIRST FINANCIAL BANCORP N 6404 03/05/2025 na Y 02/04/2026 Richard Dennen