IR
Superintel
OverviewMarketsWatchlist
© 2026 IR SuperintelMethodologyContact

RTW Investments, LP

Q1 2015 Holdings

Filed 2015-05-21 | 24 holdings | $57.7M | 13F-HR | View on SEC ↗ · Holdings Table ↗

Sign in to see sub-manager breakdown

IssuerClassCUSIPValue ↓Shares% Portfolio
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$37.1M355,39564.3%
BioCryst Pharmaceuticals Inc(BCRX)COM09058V103$20.4M2,261,36135.4%
Dyax CorpCOM26746E103$26.6K1,585,0980.0%
Dicerna Pharmaceuticals Inc(DRNAUSD)COM253031108$23.8K990,9810.0%
Kite Pharma IncCOM49803L109$21.7K375,6230.0%
La Jolla Pharmaceutical Co(LJPC)COM PAR $.0001 2503459604$19.5K1,064,2470.0%
Arrowhead Research CorpCOM NEW042797209$16.3K2,410,0000.0%
Achillion Pharmaceuticals Inc(ACHNEUR)COM00448Q201$16.0K1,622,6330.0%
bluebird bio IncCOM09609G100$12.1K100,0000.0%
Targacept IncCOM87611R306$7.9K2,665,6430.0%
ZS Pharma IncCOM98979G105$3.0K71,3150.0%
Assembly Biosciences IncCOM045396108$2.7K204,0000.0%
Presbia PlcCOMG7234P100$2.6K350,0000.0%
Avalanche Biotechnologies InCOM05337G107$2.1K51,3000.0%
Repros Therapeutics IncCOM NEW76028H209$2.0K229,3640.0%
Coronado Biosciences IncCOM21976U109$1.9K500,0000.0%
CytRx CorpCOM PAR $.001232828509$1.9K563,8140.0%
Lipocine IncCOM53630X104$1.4K209,3330.0%
Taro Pharmaceutical Industries LtdSHSM8737E108$1.2K8,7210.0%
Relypsa IncCOM759531106$1.2K31,8720.0%
Lpath IncCOM NEW548910306$14860,0000.0%
Shake Shack Inc(SHAK)COM819047101$255000.0%
Tenax Therapeutics IncCOM88032L100$82,4000.0%
Berkshire Hathaway Inc(BRK/B)COM084670702$7500.0%