Protagenic Therapeutics(PTIX) - 2023 Q4 - Annual Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For fiscal year ended: December 31, 2023 Commission file number: 001-12555 Protagenic Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 06-1390025 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 149 Fifth Avenue New York, New York 10010 (Address of principal execu ...