0001012975-19-000145.txt : 20190213 0001012975-19-000145.hdr.sgml : 20190213 20190212184402 ACCESSION NUMBER: 0001012975-19-000145 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20181231 FILED AS OF DATE: 20190213 DATE AS OF CHANGE: 20190212 EFFECTIVENESS DATE: 20190213 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Flagship Pioneering Inc. CENTRAL INDEX KEY: 0001400240 IRS NUMBER: 752992246 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17559 FILM NUMBER: 19592588 BUSINESS ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 BUSINESS PHONE: 617 868-1888 MAIL ADDRESS: STREET 1: 55 CAMBRIDGE PARKWAY, SUITE 800E CITY: CAMBRIDGE STATE: MA ZIP: 02142 FORMER COMPANY: FORMER CONFORMED NAME: Flagship Ventures Management, Inc. DATE OF NAME CHANGE: 20070522 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001400240 XXXXXXXX 12-31-2018 12-31-2018 Flagship Pioneering Inc.

55 CAMBRIDGE PARKWAY, SUITE 800E CAMBRIDGE MA 02142

13F HOLDINGS REPORT 028-17559 N Noubar B. Afeyan, Ph.D. 617-868-1888 /s/ Noubar B. Afeyan Cambridge MA 02-12-2019 2 12 2047628 false 1 0001724575 028-18466 Flagship Ventures Fund V General Partner LLC 2 0001508051 028-17238 Flagship Ventures Fund IV General Partner LLC INFORMATION TABLE 2 infotable.xml SERES THERAPEUTICS INC COM 81750R102 57327 12682876 SH DFND 2 0 12682876 0 SYROS PHARMACEUTICALS INC COM 87184Q107 17849 3204437 SH DFND 2 0 3204437 0 QUANTERIX CORP COM 74766Q101 37178 2030495 SH DFND 0 2030495 0 DENALI THERAPEUTICS INC COM 24823R105 184261 8918749 SH DFND 1 0 8918749 0 EVELO BIOSCIENCES INC COM 299734103 38641 2970119 SH DFND 2 0 2970119 0 EVELO BIOSCIENCES INC COM 299734103 167190 12850919 SH DFND 1 0 12850919 0 EVELO BIOSCIENCES INC COM 299734103 31385 2412365 SH DFND 0 2412365 0 RUBIUS THERAPEUTICS INC COM 78116T103 388396 24153995 SH DFND 2 0 24153995 0 RUBIUS THERAPEUTICS INC COM 78116T103 186188 11578828 SH DFND 1 0 11578828 0 RUBIUS THERAPEUTICS INC COM 78116T103 41224 2563703 SH DFND 0 2563703 0 MODERNA INC COM 60770K107 60 3924 SH DFND 0 3924 0 MODERNA INC COM 60770K107 897929 58803455 SH DFND 2 0 58803455 0