0000950123-21-007079.txt : 20210517 0000950123-21-007079.hdr.sgml : 20210517 20210517163009 ACCESSION NUMBER: 0000950123-21-007079 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20210331 FILED AS OF DATE: 20210517 DATE AS OF CHANGE: 20210517 EFFECTIVENESS DATE: 20210517 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: 21931279 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 0001400240 XXXXXXXX 03-31-2021 03-31-2021 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 05-17-2021 7 33 6244355 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 4 028-20999 Flagship Opportunities Fund I General Partner LLC 5 028-20997 Flagship Pioneering Special Opportunities Fund II General Partner LLC 6 028-21001 Nutritional Health Fund LTP General Partner LLC 7 028-20998 Flagship Pioneering Fund VI General Partner LLC INFORMATION TABLE 2 4358.xml INFORMATION TABLE FOR FORM 13F Axcella Health Inc COM 05454B105 37610 7901362 SH DFND 2,3 0 7901362 0 Axcella Health Inc COM 05454B105 13737 2886023 SH DFND 3,4 0 2886023 0 Axcella Health Inc COM 05454B105 8382 1761029 SH DFND 3 0 1761029 0 Codiak Biosciences Inc COM 192010106 31990 2121354 SH DFND 1,3 0 2121354 0 Codiak Biosciences Inc COM 192010106 7328 485949 SH DFND 3 0 485949 0 Denali Therapeutics Inc COM 24823R105 155898 2730263 SH DFND 1,3 0 2730263 0 Evelo Biosciences Inc COM 299734103 109197 10205282 SH DFND 1,3 0 10205282 0 Evelo Biosciences Inc COM 299734103 50110 4683213 SH DFND 2,3 0 4683213 0 Evelo Biosciences Inc COM 299734103 44142 4125461 SH DFND 3,4 0 4125461 0 Evelo Biosciences Inc COM 299734103 14664 1370476 SH DFND 3,6 0 1370476 0 Evelo Biosciences Inc COM 299734103 28308 2645637 SH DFND 3 0 2645637 0 Foghorn Therapeutics Inc COM 344174107 122981 9330878 SH DFND 1,3 0 9330878 0 Foghorn Therapeutics Inc COM 344174107 19657 1491441 SH DFND 3,4 0 1491441 0 Foghorn Therapeutics Inc COM 344174107 24407 1851801 SH DFND 3,5 0 1851801 0 Kaleido Biosciences Inc COM 483347100 79056 9759979 SH DFND 1,3 0 9759979 0 Kaleido Biosciences Inc COM 483347100 13999 1728309 SH DFND 2,3 0 1728309 0 Kaleido Biosciences Inc COM 483347100 24159 2982639 SH DFND 3,4 0 2982639 0 Kaleido Biosciences Inc COM 483347100 5980 738333 SH DFND 3,6 0 738333 0 Kaleido Biosciences Inc COM 483347100 35368 4366450 SH DFND 3 0 4366450 0 Moderna Inc COM 60770K107 2694570 20577092 SH DFND 2,3 0 20577092 0 Moderna Inc COM 60770K107 514 3924 SH DFND 3 0 3924 0 Rubius Therapeutics Inc COM 78116T103 308694 11648828 SH DFND 1,3 0 11648828 0 Rubius Therapeutics Inc COM 78116T103 641936 24223995 SH DFND 2,3 0 24223995 0 Rubius Therapeutics Inc COM 78116T103 69793 2633703 SH DFND 3,4 0 2633703 0 Sana Biotechnology Inc COM 799566104 437539 13072570 SH DFND 1,3 0 13072570 0 Sana Biotechnology Inc COM 799566104 325500 9725122 SH DFND 3,7 0 9725122 0 Sana Biotechnology Inc COM 799566104 382941 11441326 SH DFND 3 0 11441326 0 Seres Therapeutics Inc COM 81750R102 174045 8452876 SH DFND 2,3 0 8452876 0 Seres Therapeutics Inc COM 81750R102 61007 2962963 SH DFND 3,7 0 2962963 0 Seres Therapeutics Inc COM 81750R102 67085 3258134 SH DFND 3,6 0 3258134 0 Sigilon Therapeutics Inc COM 82657L107 198667 8888888 SH DFND 1,3 0 8888888 0 Sigilon Therapeutics Inc COM 82657L107 33111 1481481 SH DFND 3,5 0 1481481 0 Syros Pharmaceuticals Inc COM 87184Q107 21980 2938494 SH DFND 2,3 0 2938494 0