account_balance
Investment manager · 13F filer · SEC CIK 1400240
Flagship Pioneering, LLC
Reported value$1.54Bas of Jun 30, 2026
Positions5 0 new, 0 sold out
Top 10 weight100.0%GENB alone is 69%
FiledAug 1445 days after quarter end
Portfolio · as of Jun 30, 2026
Where the money is
New or addedTrimmedHeld
This fund reports 5 stocks.
GENBGenerate Biomedicines Inc
68.7%
MRNAModerna Inc
21.1%
SANASana Biotechnology Inc
5.7%
FHTXFoghorn Therapeutics Inc
4.0%
MCRBBox size is the share of the fund. 13F only covers US-listed stocks, so foreign holdings and short positions are missing.
What changed
Biggest moves since Mar 31, 2026
add_circleNew
None
arrow_upwardAdded
None
arrow_downwardTrimmed
None
remove_circleSold out
None