Flagship Pioneering, LLC
CIK 1400240
13F filing for Q2 2026・No. 1,967
- Holdings
- US$1.54B
- Quarter change
- +US$378.34M
- Entries
- 7
- Net bought (estimate)
- US$0
The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.
Net bought (estimate)
Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.
- New 0
- Sold out 0
- Cut 0
- Added 0
- Corporate actions 0
- Unchanged 5
Largest holdings
5 stocks worth US$1.54B, options and bonds left out.
| Stock | This quarter | Shares | Value | Weight |
|---|---|---|---|---|
| GENBGENERATE BIOMEDICINES INCCOM SHS | Unchanged | 62,673,117 | US$1.06B | 68.66% |
| MRNAMODERNA INCCOM | Unchanged | 4,632,149 | US$324.39M | 21.07% |
| SANA BIOTECHNOLOGY INCCOM | Unchanged | 25,001,856 | US$87.26M | 5.67% |
| FOGHORN THERAPEUTICS INCCOM | Unchanged | 12,674,120 | US$61.85M | 4.02% |
| SERES THERAPEUTICS INCCOM NEW | Unchanged | 1,155,850 | US$9.12M | 0.59% |
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Filings
The quarter's original 13F filings (SEC).
- 13F-HRFiled August 14, 2026SEC ↗
13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.