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Flagship Pioneering, LLC
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Q2 2025 Filing
Flagship Pioneering, LLC
Q2 2025 Filing
Filed August 14, 2025
Portfolio Value
$268.5B
Holdings
4
Report Date
Q2 2025
Filing Type
13F-HR
All Holdings (4 positions)
#
Stock
Shares
Value
% Portfolio
Type
1
MRNA
Moderna Inc
4,632,149
$127.8B
47.60%
2
SANA
Sana Biotechnology Inc
25,001,856
$68.3B
25.42%
3
FHTX
Foghorn Therapeutics Inc
12,674,120
$59.6B
22.19%
4
MCRB
Seres Therapeutics Inc
1,155,850
$12.8B
4.78%