UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20429 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 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: 001-41589 PRINCETON BANCORP, INC. (Exact name of Registrant as specified in its Charter) Pennsylvania 88-4268702 (State or other Ju ...