As filed with the U.S. Securities and Exchange Commission on May 16, 2023 Registration No. 333-269876 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 AMENDMENT NO. 4 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 AZITRA INC (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 2834 46-4478536 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 21 ...