13F HOLDINGS REPORT
Flagship Pioneering Inc.
Quarter ended Q3 2025 · Filed November 14, 2025 · Accession 0001193125-25-282859
Total Value
$292.6M
Positions
8
Other Managers
3
Confidential Omitted
No
Holdings (8)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | Moderna Inc | MRNA | 4,628,225 | $119.5M | 40.85% |
| 2 | Sana Biotechnology Inc | SANA | 15,909,178 | $56.5M | 19.30% |
| 3 | Foghorn Therapeutics Inc | FHTX | 9,330,878 | $45.6M | 15.59% |
| 4 | Sana Biotechnology Inc | SANA | 9,092,678 | $32.3M | 11.03% |
| 5 | Foghorn Therapeutics Inc | FHTX | 3,343,242 | $16.3M | 5.59% |
| 6 | Seres Therapeutics Inc | MCRB | 733,207 | $14.1M | 4.82% |
| 7 | Seres Therapeutics Inc | MCRB | 422,643 | $8.1M | 2.78% |
| 8 | Moderna Inc | MRNA | 3,924 | $101,357 | 0.03% |