UNITED STATES SECURITIES AND EXCHANGE COMMISSION FORM 10-Q Washington, D.C. 20549 ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ____________ to ____________ Commission File Number 001-15817 Old National Bancorp (Exact name of registrant as specified in its charter) Indiana 35-1539838 (State o ...