Pasithea Therapeutics (KTTA) - Prospectus

As filed with the Securities and Exchange Commission on November 18, 2025 Registration No. 333- Delaware 001-40804 85-1591963 (I.R.S. Employer Identification No.) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 PASITHEA THERAPEUTICS CORP. (Exact name of registrant as specified in its charter) | (State or other jurisdiction of | | --- | | incorporation or organization) | (Primary Standard Industrial Classification Code N ...