Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ Annual report pursuant to Section 13 or 15(d) of the SecuritiesExchange 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: 0-26486 Auburn National Bancorporation, Inc. Securities registered to Section 12(g) of the Act: None Indic ...