Table of Contents As filed with the Securities and Exchange Commission on November 26, 2025 Registration No. 333-291722 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 GENPREX, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 2834 90-0772347 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identifi ...

Table of Contents As filed with the Securities and Exchange Commission on November 21, 2025 Registration No. 333- (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 90-0772347 (I.R.S. Employer Identification Number) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 GENPREX, INC. (Exact name of registrant as specified in its charter) Copies ...

As filed with the Securities and Exchange Commission on September 12, 2025. Registration Statement No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 GENPREX, INC. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 90-0772347 (I.R.S. Employer Identification Number) 3300 Bee Cave ...