United-Guardian(UG) - 2023 Q4 - Annual Report

Commission file number 1-10526 UNITED-GUARDIAN, INC. (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 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K For the transition period from _______________________ to ___________________________________________ Securities registered pursuant to Secti ...