Terminal · Institutions
Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.
Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.
Flagship Pioneering Inc. (CIK 1400240) reported $1.16B across 4 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: ($783.4M, 67.44%), MRNA ($235.3M, 20.26%), SANA ($72.0M, 6.20%), FHTX ($60.6M, 5.22%), MCRB ($10.3M, 0.88%). Source: SEC Form 13F.
| Rank | Ticker | Company | Value | % Portfolio | Shares | Action |
|---|---|---|---|---|---|---|
| 1 | GENERATE BIOMEDICINES INC | $783.4M | 67.44% | 62.7M | New | |
| 2 | MRNA | MODERNA INC | $235.3M | 20.26% | 4.6M | Hold |
| 3 | SANA | SANA BIOTECHNOLOGY INC | $72.0M | 6.20% | 25.0M | Hold |
| 4 | FHTX | FOGHORN THERAPEUTICS INC | $60.6M | 5.22% | 12.7M | Hold |
| 5 | MCRB | SERES THERAPEUTICS INC | $10.3M | 0.88% | 1.2M | Hold |
Source: SEC Form 13F filings · as of 2026-03-31