0000950170-25-019904.txt : 20250213 0000950170-25-019904.hdr.sgml : 20250213 20250213161506 ACCESSION NUMBER: 0000950170-25-019904 CONFORMED SUBMISSION TYPE: SCHEDULE 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20250213 DATE AS OF CHANGE: 20250213 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Rapport Therapeutics, Inc. CENTRAL INDEX KEY: 0002012593 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 880724208 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SCHEDULE 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-94532 FILM NUMBER: 25620451 BUSINESS ADDRESS: STREET 1: 1325 BOYLSTON STREET STREET 2: SUITE 401 CITY: BOSTON STATE: MA ZIP: 02215 BUSINESS PHONE: 857-321-8020 MAIL ADDRESS: STREET 1: 1325 BOYLSTON STREET STREET 2: SUITE 401 CITY: BOSTON STATE: MA ZIP: 02215 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Third Rock Ventures V, L.P. CENTRAL INDEX KEY: 0001778071 ORGANIZATION NAME: IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SCHEDULE 13G BUSINESS ADDRESS: STREET 1: 29 NEWBURY STREET, 3RD FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-585-2000 MAIL ADDRESS: STREET 1: 29 NEWBURY STREET, 3RD FLOOR CITY: BOSTON STATE: MA ZIP: 02116 SCHEDULE 13G 1 primary_doc.xml SCHEDULE 13G 0001778071 XXXXXXXX LIVE Common Stock, $0.001 par value per share 12/31/2024 0002012593 Rapport Therapeutics, Inc. 75383L102 1325 Boylston Street Suite 401 Boston MA 02215 Rule 13d-1(d) Third Rock Ventures V, L.P. b DE 0 7135233 0 7135233 7135233 N 19.5 PN Third Rock Ventures GP V, L.P. b DE 0 7135233 0 7135233 7135233 N 19.5 PN TRV GP V, LLC b DE 0 7135233 0 7135233 7135233 N 19.5 OO Third Rock Ventures VI, L.P. b DE 0 969218 0 969218 969218 N 2.7 PN Third Rock Ventures GP VI, L.P. b DE 0 969218 0 969218 969218 N 2.7 PN TRV GP VI, LLC b DE 0 969218 0 969218 969218 N 2.7 OO Rapport Therapeutics, Inc. 1325 Boylston Street, Suite 401, Boston, MA 02215 (i) Third Rock Ventures V, L.P. ("TRV V"); (ii) Third Rock Ventures GP V, L.P. ("TRV GP V"), which is the sole general partner of TRV V; (iii) TRV GP V, LLC ("TRV GP V LLC"), which is the sole general partner of TRV GP V; (iv) Third Rock Ventures VI, L.P. ("TRV VI"); (v) Third Rock Ventures GP VI, L.P. ("TRV GP VI"), which is the sole general partner of TRV VI; and (vi) TRV GP VI, LLC ("TRV GP VI LLC"), which is the sole general partner of TRV GP VI. The address of the principal business office of each of the Reporting Persons is Third Rock Ventures, LLC, 201 Brookline Ave, Suite 1401, Boston, MA 02215. Each of TRV V, TRV GP V, TRV VI and TRV GP VI is a Delaware limited partnership. Each of TRV GP V LLC and TRV GP VI LLC is a Delaware limited liability company. Y (i) TRV V directly owns 7,135,233 shares of Common Stock (the "V Shares") (ii) TRV GP V is the general partner of TRV V and may be deemed to beneficially own the V Shares. (iii) TRV GP V LLC is the general partner of TRV GP V and may be deemed to beneficially own the V Shares. (iv) TRV VI directly owns 969,218 shares of Common Stock (the "VI Shares"). (v) TRV GP VI is the general partner of TRV VI and may be deemed to beneficially own the VI Shares. (vi) TRV GP VI LLC is the general partner of TRV GP VI and may be deemed to beneficially own the VI Shares. Each of TRV V, TRV GP V, and TRV GP V LLC, on the one hand, and TRV VI, TRV GP VI and TRV GP VI LLC, on the other hand, disclaim the existence of a "group" for purposes of Rule 13d-5 of the Securities Exchange Act of 1934, as amended, and nothing contained in this report shall be deemed an admission that any such group exists or may exist. The V shares represent approximately 19.5% of the outstanding shares of Common Stock. The VI shares represent approximately 2.7% of the outstanding shares of Common Stock. The percent of class was calculated based on 36,576,457 shares of common stock issued and outstanding as of November 6, 2024, as disclosed in the Issuer's 10-Q filed with the Securities and Exchange Commission on November 7, 2024. TRV V - 0 TRV GP V - 0 TRV GP V LLC - 0 TRV VI - 0 TRV GP VI - 0 TRV GP VI LLC - 0 TRV V - 7,135,233 shares TRV GP V - 7,135,233 shares TRV GP V LLC - 7,135,233 shares TRV VI - 969,218 shares TRV GP VI - 969,218 shares TRV GP VI LLC - 969,218 shares TRV V - 0 TRV GP V - 0 TRV GP V LLC - 0 TRV VI - 0 TRV GP VI - 0 TRV GP VI LLC - 0 TRV V - 7,135,233 shares TRV GP V - 7,135,233 shares TRV GP V LLC - 7,135,233 shares TRV VI - 969,218 shares TRV GP VI - 969,218 shares TRV GP VI LLC - 969,218 shares Y Y Y Y Y Y Third Rock Ventures V, L.P. /s/ Kevin Gillis 02/13/2025 Third Rock Ventures GP V, L.P. /s/ Kevin Gillis 02/13/2025 TRV GP V, LLC /s/ Kevin Gillis 02/13/2025 Third Rock Ventures VI, L.P. /s/ Kevin Gillis 02/13/2025 Third Rock Ventures GP VI, L.P. /s/ Kevin Gillis 02/13/2025 TRV GP VI, LLC /s/ Kevin Gillis 02/13/2025