Flagship Pioneering, LLC
โขCIK: 1400240โขFiling: Q4 2025
**Flagship Pioneering Inc.** manages $324M across a concentrated portfolio of four holdings. The fund exhibits a significant overweight to biotechnology, anchored by a substantial $136.6M position in MRNA. Further allocations include $101.8M in SANA and $68.4M in FHTX, indicating a deep conviction in transformative life science platforms. This structure suggests a high-conviction, venture-style approach targeting breakthrough innovation.
Total AUM
$324.0M
QoQ Performance
+10.7%
Positions
4
Top 10 Concentration
100.0%
Latest Filing
Q4 2025
Top Holdings Allocation
MRNA
SANA
FHTX
MCRB
MRNA42.2%
SANA31.4%
FHTX21.1%
MCRB5.3%
๐ Biggest Buys
No new positions or increases this quarter
๐ Biggest Sells
No reductions this quarter
Sector Breakdown
Other100.0%
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023