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Rock Springs Capital Management LP

Q3 2017 Holdings

Filed 2017-11-14 | 147 holdings | $236.4M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Acadia Healthcare Company in(ACHC)COM00404A109$62.3M1,305,00026.4%
Beigene LTD(ONC)SPONSORED ADR07725L102$29.0M280,00012.3%
Collegium Pharmaceutical Inc(COLL)COM19459J104$18.9M1,805,0008.0%
Biogen Inc(BIIB)COM09062X103$16.6M53,0007.0%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$12.3M105,0005.2%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$11.6M125,0004.9%
Align Technology Inc(ALGN)COM016255101$11.4M61,3004.8%
Aclaris Therapeutics Inc(ACRS)COM00461U105$11.4M440,0004.8%
Ardelyx Inc(ARDX)COM039697107$11.2M2,000,0004.7%
Ascendis Pharma A S(ASND)SPONSORED ADR04351P101$10.2M280,0004.3%
Coherus Biosciences Inc(CHRS)COM19249H103$8.5M638,4003.6%
Axogen Inc(AXGN)COM05463X106$7.7M400,0003.3%
Adaptimmune Therapeutics PLC(ADAPY)SPONDS ADR00653A107$7.2M875,0003.0%
Acadia Pharmaceuticals Inc(ACAD)COM004225108$6.9M182,0002.9%
Corvus Pharmaceuticals Inc(CRVS)COM221015100$6.7M422,6002.8%
Biocryst Pharmaceuticals(BCRX)COM09058V103$2.4M450,0001.0%
Anthera Pharmaceuticals Inc(ANTH)COM03674U300$155.0K107,6300.1%
Unitedhealth Group Inc(UNH)COM91324P102$89.9K459,0000.0%
Alexion Pharmaceuticals Inc(ALXN)COM015351109$65.0K463,0000.0%
Tesaro IncCOM881569107$63.9K495,2500.0%
Aetna Inc NewCOM00817Y108$63.4K399,0000.0%
Spark Therapeutics IncCOM84652J103$53.2K597,0000.0%
Advanced Accelerator ApplicSPONSORED ADS00790T100$53.0K784,5000.0%
Cigna CorporationCOM125509109$50.5K270,0000.0%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$50.2K48,0000.0%
Merck & Co Inc(MRK)COM58933Y105$48.5K758,0000.0%
Pacira Pharmaceuticals Inc(PCRX)COM695127100$40.9K1,088,0000.0%
Puma Biotechnology Inc(PBYI)COM74587V107$39.5K330,0000.0%
Celgene Corp(CELG)COM151020104$38.3K262,5000.0%
GW Pharmaceuticals PLCADS36197T103$37.9K373,0000.0%
PRA Health Sciences Inc(PRAH)COM69354M108$36.4K477,5000.0%
Radius Health IncCOM NEW750469207$36.4K943,0000.0%
Wellcare Health Plans IncCOM94946T106$33.9K197,5000.0%
Molina Healthcare Inc(MOH)COM60855R100$29.1K422,5000.0%
Penumbra Inc(PEN)COM70975L107$28.0K310,5000.0%
Neurocrine Biosciences Inc(NBIX)COM64125C109$27.0K440,0000.0%
Loxo Oncology IncCOM548862101$26.3K285,5000.0%
Epizyme Inc(EPZMEUR)COM29428V104$25.7K1,350,0000.0%
Medicines CoCOM584688105$25.6K690,0000.0%
Gilead Sciences Inc(GILD)COM375558103$25.4K313,4000.0%
Vertex Pharmaceuticals Inc(VRTX)COM92532F100$23.0K151,5000.0%
Mersana Therapeutics IncCOM59045L106$23.0K1,330,0000.0%
Johnson & Johnson(JNJ)COM478160104$22.8K175,0000.0%
Theravance Biopharma Inc(TBPH)COMG8807B106$22.1K644,4000.0%
Galapagos NV(GLPG)SPON ADR36315X101$21.8K214,0000.0%
Thermo Fisher Scientific Inc(TMO)COM883556102$20.8K110,0000.0%
Edwards Lifesciences Corp(EW)COM28176E108$20.8K190,0010.0%
Exact Sciences Corp(EXAS)COM30063P105$20.6K437,4000.0%
Insmed Inc(INSM)COM PAR $.01457669307$20.3K650,0000.0%
Incyte Corp(INCY)COM45337C102$20.2K173,0000.0%
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