0000950123-18-001716.txt : 20180213 0000950123-18-001716.hdr.sgml : 20180213 20180213131931 ACCESSION NUMBER: 0000950123-18-001716 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20171231 FILED AS OF DATE: 20180213 DATE AS OF CHANGE: 20180213 EFFECTIVENESS DATE: 20180213 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: 18601671 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 false true false 0001578973 XXXXXXXX 12-31-2017 12-31-2017 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 02-13-2018 3 5 221278 false 1 Mark Levin 2 Kevin P. Starr 3 Robert I. Tepper INFORMATION TABLE 2 form13fInfoTable.xml INFORMATION TABLE FOR FORM 13F ELEVEN BIOTHERAPEUTICS, INC. COM 286221106 3922 4841591 SH DFND 1,2,3 4841591 0 0 ZAFGEN, INC. COM 98885E103 972 210371 SH DFND 1,2,3 210371 0 0 CYTOMX THERAPEUTICS, INC. COM 23284F105 70093 3320348 SH DFND 1,2,3 3320348 0 0 KALA PHARMACEUTICALS INC. COM 483119103 30590 1654425 SH DFND 1,2,3 1654425 0 0 RHYTHM PHARMACEUTICALS, INC. COM 76243J105 115701 3981437 SH DFND 1,2,3 3981437 0 0