Instuitional Investor - Third Rock Ventures, Llc

Filing Period:
No. Security Ticker Shares Value % Port
1. SAGE 11,681,008 $427,525,000 34.96%
2. AGIO 3,070,090 $343,973,000 28.13%
3. ZFGN 466,837.08,333,333 $172,767,000 14.12%
4. BLUE 1,876,043.376 $111,445,000 9.11%
5. FMI 4,927,234 $109,483,000 8.95%