SCHEDULE 13G/A 0001104659-23-120367 0001916892 XXXXXXXX LIVE 1 Common Stock, $0.001 par value 09/30/2025 0001966494 CARGO THERAPEUTICS, INC. 14179K101 835 INDUSTRIAL ROAD, SUITE 400 SAN CARLOS CA 94070 Rule 13d-1(c) Nextech VII GP S.a. r.l. b N4 0.00 0.00 0.00 0.00 0.00 0.0 OO Nextech VII Oncology SCSp b N4 0.00 0.00 0.00 0.00 0.00 0.0 PN Ian Charoub b V7 0.00 0.00 0.00 0.00 0.00 0.0 IN Costas Constantinides b G4 0.00 0.00 0.00 0.00 0.00 0.0 IN Rocco Sgobbo b V8 0.00 0.00 0.00 0.00 0.00 0.0 IN CARGO THERAPEUTICS, INC. 835 INDUSTRIAL ROAD, SUITE 400, SAN CARLOS, CA, 94070. The names of the persons filing this report (collectively, the "Reporting Persons") are: Nextech VII Oncology SCSp ("Nextech VII LP") Nextech VII GP S.a r.l. ("Nextech VII GP") Ian Charoub ("Charoub") Costas Constantinides ("Constantinides") Rocco Sgobbo ("Sgobbo") The Reporting Persons expressly disclaim status as a "group" for purposes of this Schedule 13G. Bahnhofstrasse 18 Zurich, Switzerland 8001 Nextech VII LP Luxembourg Nextech VII GP Luxembourg Charoub Sweden Constantinides Cyprus Sgobbo Switzerland Y Row 9 of each Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of shares of common stock beneficially owned by such Reporting Person and is incorporated by reference. Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the shares of common stock beneficially owned by such Reporting Person and is incorporated by reference. Row 5 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of common stock beneficially owned by such Reporting Person and is incorporated by reference. Row 6 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of common stock beneficially owned by such Reporting Person and is incorporated by reference. Row 7 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of common stock beneficially owned by such Reporting Person and is incorporated by reference. Row 8 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of common stock beneficially owned by such Reporting Person and is incorporated by reference. N Y 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. Exhibit 99.1 Joint Filing Agreement (incorporated by reference to Exhibit A to the Reporting Persons' Schedule 13G filed with the SEC on November 21, 2023). Nextech VII GP S.a. r.l. /s/ Ian Charoub 11/14/2025 /s/ Costas Constantinides 11/14/2025 Nextech VII Oncology SCSp /s/ Ian Charoub 11/14/2025 /s/ Costas Constantinides 11/14/2025 Ian Charoub /s/ Ian Charoub 11/14/2025 Costas Constantinides /s/ Costas Constantinides 11/14/2025 Rocco Sgobbo /s/ Rocco Sgobbo 11/14/2025