The Analysis of Flagship Pioneering, LLC's Holdings & P&L

Currently, Flagship Pioneering, LLC holds 5 types of securities in its portfolio with a total value $1.2B. In the most recent quarter, they have increased their positions in N/A (+62.7M shares, valued at $783.4M); initiated new positions in N/A (+62.7M shares, valued at $783.4M).

1M P&L

-49.4M-12.17%

3M P&L

-57.2M-13.83%

HY P&L

+78.8M+28.36%

P&L figures are estimated based on reported 13F stock holdings and market price changes. They are approximations and may not reflect actual fund performance. Stock split events may also affect the accuracy of these calculations, and we cannot guarantee that all splits have been fully accounted for.

Top Holding Treemap

Top Industries by Value

1Biotechnology324.0M

100.0%

Top Industries by Stock Count

1Biotechnology4 stocks

100.0%

Sponsored

Stock Holdings

TickerCompany NameSharesShares △%Event DateReport DateHistory

GENERATE BIOMEDICINES INC GENERATE BIOMEDICINES INC62.7M sharesnew addition2026-03-312026-05-15

MRNA MODERNA INC4.6M shares0.00%2026-03-312026-05-15

SANA SANA BIOTECHNOLOGY INC25.0M shares0.00%2026-03-312026-05-15

FHTX FOGHORN THERAPEUTICS INC12.7M shares0.00%2026-03-312026-05-15

MCRB SERES THERAPEUTICS INC1.2M shares0.00%2026-03-312026-05-15

GENERATE BIOMEDICINES INC

New

Shares62.7M

Event2026-03-31

Filed2026-05-15

MRNA

MODERNA INC

0.00%

Shares4.6M

Event2026-03-31

Filed2026-05-15

SANA

SANA BIOTECHNOLOGY INC

0.00%

Shares25.0M

Event2026-03-31

Filed2026-05-15

FHTX

FOGHORN THERAPEUTICS INC

0.00%

Shares12.7M

Event2026-03-31

Filed2026-05-15

MCRB

SERES THERAPEUTICS INC

0.00%

Shares1.2M

Event2026-03-31

Filed2026-05-15

Call Option Holdings

No call option holdings data available

Put Option Holdings

No put option holdings data available