SCHEDULE 13G 0000831001 XXXXXXXX LIVE Ordinary Shares 06/30/2025 0001782999 Puretech Health Plc. G7297M101 6 Tide Street Boston MA 02210 Rule 13d-1(b) Citigroup Global Markets Limited X0 0 13220374 0 13220374 13220374 N 5.5 FI Citigroup Global Markets Holdings Bahamas Limited C5 0 13220374 0 13220374 13220374 N 5.5 FI Citigroup Financial Products Inc. DE 0 13220374 0 13220374 13220374 N 5.5 CO Citigroup Global Markets Holdings Inc. NY 0 13220374 0 13220374 13220374 N 5.5 HC Citigroup Inc. DE 0 13220374 0 13220374 13220374 N 5.5 HC Puretech Health Plc. 6 Tide Street, Suite 400, Boston MA 02210 Citigroup Global Markets Limited ("CGML"), Citigroup Global Markets Holdings Bahamas Limited ("CGMHBL"), Citigroup Financial Products Inc. ("CFP"), Citigroup Global Markets Holdings Inc. ("CGM Holdings"), Citigroup Inc. ("Citigroup"). CGML: 25 Canary Square, London GB E145LB. CGMHBL: Ocean Center, Montagu Foreshore, East Bay Street Nassau, New Providence Bahamas 19084. CFP, CGM Holdings and Citigroup: 388 Greenwich Street, New York, NY 10013. CGML is chartered and headquartered in England. CGMHBL is chartered and headquartered in the Bahamas. CGM Holdings is a New York corporation. CFP and Citigroup are Delaware corporations. N FI HC Foreign Financial Institution 13,220,374 5.5 0 13,220,374 0 13,220,374 Y Y N CGMHBL is the sole stockholder of CGML. CFP is the sole stockholder of CGMHBL. CGM Holdings is the sole stockholder of CFP. Citigroup is the sole stockholder of CGM Holdings. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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. Citigroup Global Markets Limited Simon Cumming 08/11/2025 Citigroup Global Markets Holdings Bahamas Limited David Graham 08/11/2025 Citigroup Financial Products Inc. Ronny Ostrow 08/11/2025 Citigroup Global Markets Holdings Inc. Ronny Ostrow 08/11/2025 Citigroup Inc. Ronny Ostrow 08/11/2025