0000950123-21-010327.txt : 20210811 0000950123-21-010327.hdr.sgml : 20210811 20210811170220 ACCESSION NUMBER: 0000950123-21-010327 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210630 FILED AS OF DATE: 20210811 DATE AS OF CHANGE: 20210811 EFFECTIVENESS DATE: 20210811 FILER: COMPANY DATA: COMPANY CONFORMED NAME: TRV GP, LLC CENTRAL INDEX KEY: 0001578973 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-18416 FILM NUMBER: 211164394 BUSINESS ADDRESS: STREET 1: C/O THIRD ROCK VENTURES STREET 2: 29 NEWBURY STREET, 3RD FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-585-2000 MAIL ADDRESS: STREET 1: C/O THIRD ROCK VENTURES STREET 2: 29 NEWBURY STREET, 3RD FLOOR CITY: BOSTON STATE: MA ZIP: 02116 13F-HR 1 primary_doc.xml 13F-HR LIVE 0001578973 XXXXXXXX 06-30-2021 06-30-2021 false TRV GP, LLC

C/O Third Rock Ventures 29 Newbury Street, 3rd Floor Boston MA 02116

13F HOLDINGS REPORT 028-18416 N Kevin Gillis 617-585-2000 /s/ Kevin Gillis Boston MA 08-11-2021 3 1 18903 false 1 028-18439 Mark Levin 2 028-18438 Kevin P. Starr 3 028-18419 Robert I. Tepper INFORMATION TABLE 2 5420.xml INFORMATION TABLE FOR FORM 13F SESEN BIO, INC. COM 817763105 18903 4091591 SH DFND 1,2,3 4091591 0 0