Flagship Pioneering Inc. — 13F holdings

Flagship Pioneering Inc. reported 7 holdings worth $1.54B in its 13F filing for Q2 2026, filed August 14, 2026.

Largest positions

1. GENB Generate Biomedicines Inc — $1.06B (68.7%)
2. MRNA Moderna Inc — $324M (21.1%)
3. SANA SANA BIOTECHNOLOGY INC — $87.3M (5.7%)
4. FHTX FOGHORN THERAPEUTICS INC — $61.8M (4.0%)
5. MCRB SERES THERAPEUTICS INC — $9.12M (0.6%)