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Flagship Pioneering, LLC

hedge fundUpdated 28 days ago

Managed by Flagship Pioneering Inc. • Latest filing Q2 2026

Portfolio value
$1.5B
Q2 2026
Filings
14
Quarterly 13F history
Top-10 concentration
100.0%
Weight of largest holdings
Annualized return
-23.3%
Implied from 13F holdings

Portfolio value history

13F-disclosed portfolio value over 14 quarters

Show data table
PeriodPortfolio value
Q1 2023$2.6B
Q2 2023$2.2B
Q3 2023$1.4B
Q4 2023$1.3B
Q1 2024$1.5B
Q2 2024$843.4M
Q3 2024$591.9M
Q4 2024$334.2M
Q1 2025$235.8M
Q2 2025$268.5M
Q3 2025$292.6M
Q4 2025$324M
Q1 2026$1.2B
Q2 2026$1.5B

Top holdings

7 positions as of Q2 2026

View filing
G

GENERATE BIOMEDICINES INC

Value
$1.1B
Shares
62.67M
% Port
68.66%
M

MODERNA INC

Value
$324.1M
Shares
4.63M
% Port
21.05%
S

SANA BIOTECHNOLOGY INC

Value
$87.3M
Shares
25.00M
% Port
5.67%
F

FOGHORN THERAPEUTICS INC

Value
$61.8M
Shares
12.67M
% Port
4.02%
?
5.N/A

SERES THERAPEUTICS INC

Value
$5.8M
Shares
733.2K
% Port
0.38%
?
6.N/A

SERES THERAPEUTICS INC

Value
$3.3M
Shares
422.6K
% Port
0.22%
M

MODERNA INC

Value
$275K
Shares
3.9K
% Port
0.02%

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