As filed with the U.S. Securities and Exchange Commission on February 19, 2026. 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 ––––––––––––––––––––––– MEDICAL 21, INC. (Exact name of registrant as specified in its charter) ––––––––––––––––––––––– | Minnesota | 3842 | 81-1497154 | | --- | --- | --- | | (State or other jurisdiction of | (Primary Standard Industrial | (I.R.S. Employer | inc ...