SCHEDULE 13G 0001642575 XXXXXXXX LIVE Common Stock 03/09/2026 0001453687 Cartesian Therapeutics, Inc. 816212302 7495 NEW HORIZON WAY FREDERICK MD 21703 Rule 13d-1(c) Squarepoint Ops LLC DE 0.00 2209601.00 0.00 2209601.00 2209601.00 8.3 IA Squarepoint Capital LLP X0 0.00 2209601.00 0.00 2209601.00 2209601.00 8.3 IA Squarepoint Operations Private Limited U0 0.00 2209601.00 0.00 2209601.00 2209601.00 8.3 IA Squarepoint (DIFC) Ltd C0 0.00 2209601.00 0.00 2209601.00 2209601.00 8.3 IA Squarepoint Master Fund Limited E9 0.00 2178652.00 0.00 2178652.00 2178652.00 8.2 OO Squarepoint Core Master Fund Limited E9 0.00 30949.00 0.00 30949.00 30949.00 0.1 OO Cartesian Therapeutics, Inc. 7495 NEW HORIZON WAY, FREDERICK, MARYLAND, 21703. Squarepoint Ops LLC Squarepoint Capital LLP Squarepoint Operations Private Limited Squarepoint (DIFC) Limited Squarepoint Master Fund Limited Squarepoint Core Master Fund Limited Squarepoint Ops LLC Squarepoint Master Fund Limited Squarepoint Core Master Fund Limited 250 W 55th Street 32nd Floor, New York, NY 10019 USA Squarepoint Capital LLP Citypoint, One Ropemaker Street, London, EC2Y 9AW UK Squarepoint Operations Private Limited 88 Market Street, CapitaSpring, Level 49, 048948 Singapore Squarepoint (DIFC) Limited Unit L29-07, Level 29, ICD Brookfield Place, Dubai International Financial Centre, Dubai, United Arab Emirates Squarepoint Ops LLC- USA Squarepoint Capital LLP- United Kingdom Squarepoint Operations Private Limited- Singapore Squarepoint (DIFC) Limited- United Arab Emirates Squarepoint Master Fund Limited- Cayman Islands Squarepoint Core Master Fund Limited- Cayman Islands Y Squarepoint Ops LLC- 2,209,601 Squarepoint Capital LLP- 2,209,601 Squarepoint Operations Private Limited- 2,209,601 Squarepoint (DIFC) Limited- 2,209,601 Squarepoint Master Fund Limited- 2,178,652.00 Squarepoint Core Master Fund Limited- 30,949.00 Squarepoint Ops LLC- 8.34% Squarepoint Capital LLP- 8.34% Squarepoint Operations Private Limited- 8.34% Squarepoint (DIFC) Limited- 8.34% Squarepoint Master Fund Limited- 8.22% Squarepoint Core Master Fund Limited- 0.12% 0 Squarepoint Ops LLC- 2,209,601 Squarepoint Capital LLP- 2,209,601 Squarepoint Operations Private Limited- 2,209,601 Squarepoint (DIFC) Limited- 2,209,601 Squarepoint Master Fund Limited- 2,178,652.00 Squarepoint Core Master Fund Limited- 30,949.00 0 Squarepoint Ops LLC- 2,209,601 Squarepoint Capital LLP- 2,209,601 Squarepoint Operations Private Limited- 2,209,601 Squarepoint (DIFC) Limited- 2,209,601 Squarepoint Master Fund Limited- 2,178,652.00 Squarepoint Core Master Fund Limited- 30,949.00 Y N Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. Squarepoint Ops LLC /s/ John Weitzer 03/13/2026 Squarepoint Capital LLP /s/ John Weitzer 03/13/2026 Squarepoint Operations Private Limited /s/ John Weitzer 03/13/2026 Squarepoint (DIFC) Ltd /s/ John Weitzer 03/13/2026 Squarepoint Master Fund Limited /s/ John Weitzer 03/13/2026 Squarepoint Core Master Fund Limited /s/ John Weitzer 03/13/2026