Any forward-looking statement speaks only as of the date on which it is made, and Byline undertakes no obligation to update any forward-looking statement, whether to reflect events or circumstances after the date on which the statement is made, to reflect new information or the occurrence of unanticipated events, or otherwise. Important Additional Information and Where to Find It This communication is being made in respect of the proposed merger transaction involving Byline and First Security Bancorp. Byline intends to file a registration statement on Form S-4 with the SEC, which will include a proxy statement of First Security Bancorp and a prospectus of Byline, and Byline will file other documents regarding the proposed transaction with the SEC. A definitive proxy statement/prospectus will also be sent to First Security Bancorp stockholders seeking the required stockholder approval of the proposed transaction.