Table of Contents As filed with the Securities and Exchange Commission on February 4, 2026 Registration No. 333-292822 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 2 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Clear Street Group Inc. (Exact Name of Registrant as Specified in Its Charter) Delaware 6211 86-2376416 (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) (I.R.S. Emplo ...