Table of Contents As filed with the Securities and Exchange Commission on February 11, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 4 to FORM S-1 REGISTRATION STATEMENT UNDER Clear Street Group Inc. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) Delaware 6211 86-2376416 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) 150 Greenwich Street, 45th ...

Table of Contents As filed with the Securities and Exchange Commission on February 10, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 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) (State or Other Jurisdiction of Incorporation or Organization) Delaware 6211 86-2376416 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) ...

Table of Contents As filed with the Securities and Exchange Commission on February 10, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 3 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) (State or Other Jurisdiction of Incorporation or Organization) Delaware 6211 86-2376416 (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification Number) ...

Group 1: Recent IPOs - A total of 16 new stocks were listed last week, including 7 SPACs [1] - VeraDermics (MANE) raised $256 million by issuing 15.08 million shares at $17 per share [1] - Forgent Power Solutions (FPS) raised $1.512 billion by issuing 56 million shares at $27 per share [1] - Bob's Discount Furniture (BOBS) raised $331 million by issuing 19.45 million shares at $17 per share [1] - Eikon Therapeutics (EIKN) raised $381 million by issuing 21.78 million shares at $18 per share, increasing its original planned issuance [1] - SpyGlass Pharma (SGP) raised $150 million by issuing 9.38 million shares at $16 per share [1] - Once Upon a Farm (OFRM) raised $198 million by issuing 11 million shares at $18 per share [1] - AgomAb Therapeutics (AGMB) raised $200 million by issuing 12.5 million shares at $16 per share [1] - Several SPACs also raised funds, with amounts ranging from $100 million to $260 million [2] Group 2: Upcoming IPOs - AGI Inc, a financial services provider, plans to go public on February 11, 2026, on the NYSE under the ticker AGBK, aiming to raise approximately $786 million by issuing 43.64 million shares at $15 to $18 per share [3] - SOLV Energy, Inc., a solar project developer, plans to go public on February 11, 2026, on NASDAQ under the ticker MWH, aiming to raise approximately $513 million by issuing 20.5 million shares at $22 to $25 per share [5] - ARKO Petroleum Corp., a fuel distributor, plans to go public on February 12, 2026, on NASDAQ under the ticker APC, aiming to raise approximately $210 million by issuing 10.5 million shares at $18 to $20 per share [5] - Clear Street Group Inc., a fintech platform, plans to go public on February 13, 2026, on NASDAQ under the ticker CLRS, aiming to raise approximately $1.048 billion by issuing 23.81 million shares at $40 to $44 per share [8]

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 Table of Contents 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 ...

(State or Other Jurisdiction of Incorporation or Organization) As filed with the Securities and Exchange Commission on January 26, 2026 Registration No. 333-292822 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Amendment No. 1 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 (Primary Standard Industrial Classification Code Number) 150 Greenwich Street, 45th Floo ...

Table of Contents As filed with the Securities and Exchange Commission on January 20, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Clear Street Group 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 6211 86-2376416 (I.R.S. Employer Identification Number) 150 Greenwich Street ...