Flagship Pioneering, LLC
Top Portfolio Positions
5 positions ·
$1,945,341,095 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| GENB |
Generate Biomedicines, Inc.
Healthcare
|
125,375,032 | $1,567,187,899 | 80.56% | |
| MRNA |
Moderna, Inc.
Healthcare
|
4,632,149 | $235,313,169 | 12.10% | |
| SANA |
Sana Biotechnology, Inc.
Healthcare
|
25,001,856 | $72,005,345 | 3.70% | |
| FHTX |
Foghorn Therapeutics Inc.
Healthcare
|
12,674,120 | $60,582,293 | 3.11% | |
| MCRB |
Seres Therapeutics, Inc.
Healthcare
|
1,155,850 | $10,252,389 | 0.53% |
Portfolio Trend
25 quarters · across all stocks
Holdings in GENB
Shares Held
Position Value (USD)
2 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $783,413,962 | 62,673,117 | Shares | Defined | 2026-05-15 | |
| 2026-03-31 | $783,773,937 | 62,701,915 | Shares | Sole | 2026-05-15 | |
| No 13F history on record for this holder in this stock. | ||||||