Flagship Pioneering, LLC Q3 2025 Filing

Filed November 14, 2025

Portfolio Value

$292.6B

Holdings

4

Report Date

Q3 2025

Filing Type

13F-HR

All Holdings (4 positions)

#StockSharesValue% PortfolioType
1
MRNAModerna Inc
4,632,149$119.6B40.89%
2
SANASana Biotechnology Inc
25,001,856$88.8B30.33%
3
FHTXFoghorn Therapeutics Inc
12,674,120$62.0B21.18%
4
MCRBSeres Therapeutics Inc
1,155,850$22.2B7.60%