0000950123-24-002510.txt : 20240214 0000950123-24-002510.hdr.sgml : 20240214 20240214160013 ACCESSION NUMBER: 0000950123-24-002510 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20231231 FILED AS OF DATE: 20240214 DATE AS OF CHANGE: 20240214 EFFECTIVENESS DATE: 20240214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Flagship Pioneering Inc. CENTRAL INDEX KEY: 0001400240 ORGANIZATION NAME: IRS NUMBER: 752992246 STATE OF INCORPORATION: DE FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17559 FILM NUMBER: 24637303 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 X0202 13F-HR LIVE 0001400240 XXXXXXXX 12-31-2023 12-31-2023 false 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 02-14-2024 3 13 1325311872 false 1 028-18466 Flagship Ventures Fund V General Partner LLC 2 028-17238 Flagship Ventures Fund IV General Partner LLC 3 028-19988 Noubar Afeyan INFORMATION TABLE 2 30297.xml INFORMATION TABLE FOR FORM 13F Denali Therapeutics Inc COM 24823R105 49786513 2319968 SH DFND 1,3 0 2319968 0 Foghorn Therapeutics Inc COM 344174107 60184163 9330878 SH DFND 1,3 0 9330878 0 Foghorn Therapeutics Inc COM 344174107 21563910 3343242 SH DFND 3 0 3343242 0 Moderna Inc COM 60770K107 960897237 9662114 SH DFND 2,3 0 9662114 0 Moderna Inc COM 60770K107 390242 3924 SH DFND 3 0 3924 0 Omega Therapeutics Inc COM 68217N105 21024417 6984856 SH DFND 1,3 0 6984856 0 Omega Therapeutics Inc COM 68217N105 66944576 22240723 SH DFND 3 0 22240723 0 Sana Biotechnology Inc COM 799566104 37098127 9092678 SH DFND 1,3 0 9092678 0 Sana Biotechnology Inc COM 799566104 64909446 15909178 SH DFND 3 0 15909178 0 Seres Therapeutics Inc COM 81750R102 11834027 8452876 SH DFND 2,3 0 8452876 0 Seres Therapeutics Inc COM 81750R102 20600138 14664169 SH DFND 3 0 14664169 0 Syros Pharmaceuticals Inc COM 87184Q206 2289076 293848 SH DFND 2,3 0 293848 0 Syros Pharmaceuticals Inc COM 87184Q206 7790000 1000000 SH DFND 3 0 1000000 0