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Rock Springs Capital Management LP

Q1 2019 Holdings

Filed 2019-05-15 | 131 holdings | $288.9M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Boston Scientific Corp(BSX)COM101137107$37.2M970,00012.9%
Align Technology Inc(ALGN)COM016255101$29.9M105,00010.3%
Beigene LTD(ONC)SPONSORED ADR07725L102$28.4M214,8009.8%
Acadia Healthcare Company in(ACHC)COM00404A109$27.1M925,0009.4%
Ascendis Pharma A S(ASND)SPONSORED ADR04351P101$25.1M213,5008.7%
Collegium Pharmaceutical Inc(COLL)COM19459J104$23.9M1,577,8938.3%
Argenx SE(ARGX)SPONSORED ADR04016X101$22.7M181,7007.9%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$21.8M233,5007.6%
Axogen Inc(AXGN)COM05463X106$12.7M603,9704.4%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$12.0M135,0004.2%
Aclaris Therapeutics Inc(ACRS)COM00461U105$10.2M1,700,0003.5%
Coherus Biosciences Inc(CHRS)COM19249H103$9.1M670,0003.2%
Agios Pharmaceuticals Inc(AGIO)COM00847X104$7.9M117,5002.7%
Biocryst Pharmaceuticals(BCRX)COM09058V103$5.7M700,0002.0%
Ardelyx Inc(ARDX)COM039697107$5.6M2,000,0001.9%
Adaptimmune Therapeutics PLC(ADAPY)SPONDS ADR00653A107$3.4M800,0001.2%
Arvinas Inc(ARVN)COM04335A105$2.2M150,0000.8%
Corvus Pharmaceuticals Inc(CRVS)COM221015100$1.6M400,0000.6%
Unitedhealth Group Inc(UNH)COM91324P102$146.1K591,0000.1%
GW Pharmaceuticals PLCADS36197T103$118.0K700,0000.0%
Amarin Corp PLCSPONS ADR NEW023111206$93.9K4,525,0000.0%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$87.0K152,5000.0%
Wellcare Health Plans IncCOM94946T106$86.3K320,0000.0%
Neurocrine Biosciences Inc(NBIX)COM64125C109$74.4K844,5000.0%
Spark Therapeutics IncCOM84652J103$61.2K537,5000.0%
HCA Healthcare Inc(HCA)COM40412C101$59.3K455,0000.0%
Pacira Pharmaceuticals Inc(PCRX)COM695127100$47.6K1,250,0000.0%
Encompass Health Corp(EHC)COM29261A100$46.7K800,0000.0%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$40.2K580,0000.0%
Sarepta Therapeutics Inc(SRPT)COM803607100$39.9K334,5000.0%
Teleflex Inc(TFX)COM879369106$39.3K130,0000.0%
Irhythm Technologies Inc(IRTC)COM450056106$37.5K499,6150.0%
Vertex Pharmaceuticals Inc(VRTX)COM92532F100$37.3K203,0000.0%
Stryker Corp(SYK)COM863667101$35.4K179,0000.0%
Edwards Lifesciences Corp(EW)COM28176E108$35.1K183,5000.0%
Exact Sciences Corp(EXAS)COM30063P105$34.4K397,0000.0%
Penumbra Inc(PEN)COM70975L107$33.1K225,0000.0%
Alexion Pharmaceuticals Inc(ALXN)COM015351109$32.8K242,5000.0%
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$32.0K255,2500.0%
Portola Pharmaceuticals IncCOM737010108$30.4K875,0000.0%
Molina Healthcare Inc(MOH)COM60855R100$29.5K207,5000.0%
Wright MED Group N VORD SHSN96617118$29.0K920,6080.0%
Invitae Corp(NVTA1EUR)COM46185L103$26.9K1,150,0000.0%
Idexx Labs Inc(IDXX)COM45168D104$26.9K120,2000.0%
Incyte Corp(INCY)COM45337C102$26.9K312,3000.0%
PRA Health Sciences Inc(PRAH)COM69354M108$26.5K240,0000.0%
Insmed Inc(INSM)COM PAR $.01457669307$24.7K850,0000.0%
Baxter Intl Inc(BAX)COM071813109$24.5K300,7000.0%
Radius Health IncCOM NEW750469207$23.4K1,175,0000.0%
Biogen Inc(BIIB)CallCOM09062X103$23.0K97,5000.0%
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