As filed with the Securities and Exchange Commission on February 14, 2024 Registration No. 333-[***] UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Ascent Solar Technologies, Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 36741 20-3672603 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 1 ...

As filed with the Securities and Exchange Commission on September 27, 2023 Registration No. 333-274231 Delaware 36741 20-3672603 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 12300 Grant Street Thornton, CO 80241 (720) 872-5000 (Address, including zip code, and telephone number, including area code, of registrant's principal executive offices) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 4 FORM S-1 REGISTRATION STATE ...

As filed with the Securities and Exchange Commission on September 25, 2023 Registration No. 333-274231 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Ascent Solar Technologies, Inc. (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Delaware 36741 20-3672603 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identi ...