Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 THESEUS PHARMACEUTICALS, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 83-0712806 ( State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 314 Main Street Cambridge, Massachusetts 02142 (Address of principal executive offices) (Zip Code) Registra ...