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Flagship Pioneering, LLC 13F holdings

Filed 2026-08-14 · Flagship Pioneering, LLC · 7 positions · $1.5B

View QoQ Changes Export CSV

TickerCompanySharesValue% of portfolio
GENBGENERATE BIOMEDICINES INC62.7M$1.1B68.7%
MRNAMODERNA INC4.6M$324.1M21.0%
SANASANA BIOTECHNOLOGY INC25.0M$87.3M5.7%
FHTXFOGHORN THERAPEUTICS INC12.7M$61.8M4.0%
—SERES THERAPEUTICS INC733.2K$5.8M0.4%
—SERES THERAPEUTICS INC422.6K$3.3M0.2%
MRNAMODERNA INC3.9K$274,7980.0%
Top Fund Holdings
13F
Top Fund Holdings

What did the whales just file?

13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.

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13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.
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