Rtw Investments

Rtw Investments as of March 31, 2015

Portfolio Holdings for Rtw Investments

Rtw Investments holds 24 positions in its portfolio as reported in the March 2015 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Alnylam Pharmaceuticals (ALNY) 16.8 $37M 355k 104.42
Dyax 12.0 $27M 1.6M 16.75
Dicerna Pharmaceuticals 10.8 $24M 991k 24.03
Kite Pharma 9.8 $22M 376k 57.68
BioCryst Pharmaceuticals (BCRX) 9.2 $20M 2.3M 9.03
La Jolla Pharmaceuticl Com Par 8.8 $20M 1.1M 18.30
Arrowhead Research 7.4 $16M 2.4M 6.77
Achillion Pharmaceuticals 7.2 $16M 1.6M 9.86
Bluebird Bio (BLUE) 5.5 $12M 100k 120.77
Targacept 3.6 $7.9M 2.7M 2.97
Zs Pharma 1.4 $3.0M 71k 42.08
Assembly Biosciences 1.2 $2.7M 204k 13.24
Presbia 1.2 $2.6M 350k 7.39
Avalanche Biotechnologies In 0.9 $2.1M 51k 40.53
Repros Therapeutics 0.9 $2.0M 229k 8.59
Coronado Biosciences Inc. Common 0.9 $1.9M 500k 3.85
Cytrx 0.9 $1.9M 564k 3.37
Lipocine 0.7 $1.4M 209k 6.90
Taro Pharmaceutical Industries (TARO) 0.6 $1.2M 8.7k 141.04
Relypsa 0.5 $1.1M 32k 36.08
Lpath 0.1 $148k 60k 2.47
Shake Shack Inc cl a (SHAK) 0.0 $25k 500.00 50.00
Berkshire Hathaway (BRK.B) 0.0 $7.0k 50.00 140.00
Tenax Therapeutics 0.0 $8.0k 2.4k 3.33