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Rock Springs Capital Management LP

Q2 2017 Holdings

Filed 2017-08-14 | 149 holdings | $202.0M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Acadia Healthcare Company in(ACHC)COM00404A109$66.7M1,350,00033.0%
Collegium Pharmaceutical Inc(COLL)COM19459J104$22.5M1,798,19511.1%
Biogen Inc(BIIB)COM09062X103$14.4M53,0007.1%
Aclaris Therapeutics Inc(ACRS)COM00461U105$11.9M440,0005.9%
Beigene LTD(ONC)SPONSORED ADR07725L102$11.9M265,0005.9%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$11.4M125,0005.6%
Ardelyx Inc(ARDX)COM039697107$10.2M2,000,0005.0%
Coherus Biosciences Inc(CHRS)COM19249H103$10.0M693,9004.9%
Ascendis Pharma A S(ASND)SPONSORED ADR04351P101$9.0M325,0004.5%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$8.4M105,0004.1%
Axogen Inc(AXGN)COM05463X106$6.3M375,0003.1%
Corvus Pharmaceuticals Inc(CRVS)COM221015100$5.1M422,6002.5%
Acadia Pharmaceuticals Inc(ACAD)COM004225108$4.9M174,0002.4%
Adaptimmune Therapeutics PLC(ADAPY)SPONDS ADR00653A107$3.9M875,0001.9%
Align Technology Inc(ALGN)COM016255101$3.5M23,0001.7%
Anthera Pharmaceuticals Inc(ANTH)COM03674U300$268.0K165,7050.1%
Tesaro IncCOM881569107$68.6K490,5000.0%
Aetna Inc NewCOM00817Y108$58.9K388,0000.0%
Unitedhealth Group Inc(UNH)COM91324P102$58.2K314,0000.0%
Alexion Pharmaceuticals Inc(ALXN)COM015351109$56.3K463,0000.0%
Pacira Pharmaceuticals Inc(PCRX)COM695127100$49.7K1,042,5000.0%
Merck & Co Inc(MRK)COM58933Y105$48.6K758,0000.0%
Cigna CorporationCOM125509109$45.2K270,0000.0%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$44.9K48,0000.0%
Radius Health IncCOM NEW750469207$41.2K910,2500.0%
Allergan PLCSHSG0177J108$37.9K155,9000.0%
Spark Therapeutics IncCOM84652J103$37.3K625,0000.0%
GW Pharmaceuticals PLCADS36197T103$36.6K365,5000.0%
Medtronic PLC(MDT)SHSG5960L103$35.5K400,0000.0%
Wellcare Health Plans IncCOM94946T106$35.5K197,5000.0%
PRA Health Sciences Inc(PRAH)COM69354M108$34.7K462,5000.0%
Advanced Accelerator ApplicSPONSORED ADS00790T100$32.8K840,0000.0%
Humana Inc(HUM)COM444859102$31.9K132,5000.0%
Celgene Corp(CELG)COM151020104$31.8K245,0000.0%
Penumbra Inc(PEN)COM70975L107$27.2K310,5000.0%
Medicines CoCOM584688105$26.4K694,4460.0%
Theravance Biopharma Inc(TBPH)COMG8807B106$23.9K600,0000.0%
Johnson & Johnson(JNJ)COM478160104$23.2K175,0000.0%
Loxo Oncology IncCOM548862101$23.1K288,0000.0%
Edwards Lifesciences Corp(EW)COM28176E108$22.5K190,0010.0%
Almost Family IncCOM020409108$22.3K362,0000.0%
Gilead Sciences Inc(GILD)COM375558103$22.2K313,4000.0%
Incyte Corp(INCY)COM45337C102$21.8K173,0000.0%
Clovis Oncology Inc(CLVSEUR)COM189464100$21.7K231,5000.0%
Mersana Therapeutics IncCOM59045L106$21.3K1,527,8930.0%
Neurocrine Biosciences Inc(NBIX)COM64125C109$19.3K419,0000.0%
Jazz Pharmaceuticals PLC(JAZZ)SHS USDG50871105$19.2K123,7000.0%
Thermo Fisher Scientific Inc(TMO)COM883556102$19.2K110,0000.0%
Hologic Inc(HOLX)COM436440101$19.1K420,0000.0%
Danaher Corp del(DHR)COM235851102$19.0K225,0000.0%
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