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RTW Investments, LP

Q3 2015 Holdings

Filed 2015-11-13 | 44 holdings | $321.8K | 13F-HR/A | View on SEC ↗ · Holdings Table ↗

Amended (2016-05-24) | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Alnylam Pharmaceuticals Inc(ALNY)ACOM02043Q107$42.9K533,66013.3%
Incyte Corp(INCY)ACOM45337C102$33.5K303,21210.4%
La Jolla Pharmaceutical Co(LJPC)ACOM PAR $.0001 2503459604$30.0K1,080,3319.3%
BioCryst Pharmaceuticals Inc(BCRX)ACOM09058V103$25.4K2,228,2067.9%
Kite Pharma IncACOM49803L109$20.9K375,4766.5%
Achillion Pharmaceuticals Inc(ACHNEUR)ACOM00448Q201$17.9K2,589,8185.6%
Mirati Therapeutics Inc(MRTXEUR)ACOM60468T105$16.6K482,0695.2%
Dicerna Pharmaceuticals Inc(DRNAUSD)ACOM253031108$16.5K2,005,2385.1%
bluebird bio IncACOM09609G100$13.0K151,5944.0%
Arrowhead Research CorpACOM NEW42797209$12.1K2,097,1853.8%
Five Prime Therapeutics Inc(FPRX)ACOM33830X104$11.0K713,9543.4%
Agenus Inc(AGENEUR)ACOM NEW00847G705$9.6K2,084,1423.0%
Atara Biotherapeutics Inc.ACOM46513107$8.3K262,9952.6%
Celldex Therapeutics IncANEW COM15117B103$7.6K718,7292.4%
Symmetry Surgical IncACOM87159G100$7.2K807,4422.2%
Bristol-Myers Squibb Co(BMY)ACOM110122108$6.1K102,4251.9%
Corium International IncACOM21887L107$5.4K575,2121.7%
Omeros Corp(OMER)ACOM682143102$5.4K490,0001.7%
Regenxbio Inc(RGNX)ACOM ADDED75901B107$4.5K204,4941.4%
Global Blood Therapeutics IncACOM ADDED37890U108$3.9K92,3991.2%
BMY 01/15/2016 Call 60(BMY)CallCOM110122108$2.6K7,5000.8%
Lipocine IncANEW COM53630X104$2.5K212,4970.8%
Invuity IncACOM NEW46187J205$2.5K175,0000.8%
Dyax CorpACOM26746E103$2.2K115,3580.7%
Presbia PlcSHSG7234P100$1.9K350,0000.6%
Catalyst Biosciences IncCOM ADDED14888D109$1.8K380,8060.6%
Repros Therapeutics IncACOM NEW76028H209$1.7K232,8300.5%
Vbi Vaccines IncACOM91790E102$1.7K650,0000.5%
OraSure Technologies Inc(OSUR)COM68554V108$1.4K322,9960.4%
CytRx CorpACOM PAR $.001232828509$1.1K453,4650.3%
NewLink Genetics CorpACOM651511107$1.0K28,2910.3%
Masimo Corp(MASI)COM574795100$99925,9000.3%
Allscripts Healthcare Solutions Inc(MDRX)ACOM01988P108$59548,0000.2%
Bcrx 12/18/2015 Call 12(BCRX)CallACOM09058V103$4312,0000.1%
Nivalis Therapeutics IncCOM65481J109$38930,0000.1%
Biopharmx CorpCOM09072X101$382370,6360.1%
Natera Inc(NTRA)ACOM ADDED632307104$34431,6930.1%
Genomic Health Inc(GHDX)ACOM37244C101$31715,0000.1%
Endologix IncACOM29266S106$18415,0000.1%
Veracyte Inc(VCYT)COM92337F107$11725,0000.0%
Adaptimmune Therapeutics(ADAPY)ASPONDS ADR00653A107$847,0280.0%
Vivo 01/15/2016 Call 20(MR4)CallCOM589584101$501,2520.0%
USO 01/15/2016 Call 25CallUNITS91232N108$4213,8500.0%
Berkshire Hathaway IncCL B NEW84670702$7500.0%