Rock Springs Capital Management LP Q3 2018 Filing

Filed November 14, 2018

Portfolio Value

$2.8B

Holdings

144

Report Date

Q3 2018

Filing Type

13F-HR

All Holdings (144 positions)

StockValue
UNHUNITEDHEALTH GROUP INC
$156.7M
ISRGINTUITIVE SURGICAL INC
$81.2M
MOHMOLINA HEALTHCARE INC
$81.0M
NBIXNEUROCRINE BIOSCIENCES INC
$79.3M
WCGEURWELLCARE HEALTH PLANS INC
$75.5M
MDGLMADRIGAL PHARMACEUTICALS INC
$73.2M
AMRNAMARIN CORP PLC
$70.4M
GW PHARMACEUTICALS PLC
$69.1M
PCRXPACIRA PHARMACEUTICALS INC
$63.5M
HCAHCA HEALTHCARE INC
$63.3M
EHCENCOMPASS HEALTH CORP
$52.7M
SRPTSAREPTA THERAPEUTICS INC
$50.1M
IRTCIRHYTHM TECHNOLOGIES INC
$45.4M
ALXNALEXION PHARMACEUTICALS INC
$41.7M
VRTXVERTEX PHARMACEUTICALS INC
$37.8M
ONCBEIGENE LTD
$37.0M
PENPENUMBRA INC
$35.2M
LOXO ONCOLOGY INC
$34.7M
TFXTELEFLEX INC
$33.0M
CELGCELGENE CORP
$32.3M
SYKSTRYKER CORP
$31.8M
PRAHPRA HEALTH SCIENCES INC
$31.8M
EWEDWARDS LIFESCIENCES CORP
$31.3M
BSXBOSTON SCIENTIFIC CORP
$30.8M
INGNINOGEN INC
$30.8M
ABBVABBVIE INC
$30.7M
EXASEXACT SCIENCES CORP
$30.4M
ZBHZIMMER BIOMET HLDGS INC
$29.6M
SPARK THERAPEUTICS INC
$29.3M
DVADAVITA INC
$29.3M
WRIGHT MED GROUP N V
$29.0M
TESARO INC
$28.7M
ALDER BIOPHARMACEUTICALS INC
$27.2M
AFWALIGN TECHNOLOGY INC
$26.4M
ACHCACADIA HEALTHCARE COMPANY IN
$24.6M
INCYINCYTE CORP
$24.3M
COLLCOLLEGIUM PHARMACEUTICAL INC
$24.3M
TMOTHERMO FISHER SCIENTIFIC INC
$23.4M
NVTA1EURINVITAE CORP
$23.4M
BAXBAXTER INTL INC
$22.9M
RADIUS HEALTH INC
$22.6M
PBYIPUMA BIOTECHNOLOGY INC
$22.4M
IDXXIDEXX LABS INC
$20.8M
MEDICINES CO
$20.6M
OBSEVA SA
$20.2M
AXGNAXOGEN INC
$20.0M
GLPGGALAPAGOS NV
$20.0M
WSTWEST PHARMACEUTICAL SVSC INC
$19.8M
FGENEURFIBROGEN INC
$18.6M
ALLKGUSDALLAKOS INC
$18.2M
ASMBASSEMBLY BIOSCIENCES INC
$18.2M
IM8NINSMED INC
$18.0M
TBPHTHERAVANCE BIOPHARMA INC
$18.0M
BIIBBIOGEN INC
$17.7M
ARNAEURARENA PHARMACEUTICALS INC
$17.3M
ASNDASCENDIS PHARMA A S
$17.3M
ALNYALNYLAM PHARMACEUTICALS INC
$17.2M
AUDENTES THERAPEUTICS INC
$16.8M
HRTXHERON THERAPEUTICS INC
$16.6M
ANABANAPTYSBIO INC
$16.5M
IMMUNOMEDICS INC
$16.1M
2L9BLUEPRINT MEDICINES CORP
$15.6M
RAREULTRAGENYX PHARMACEUTICAL IN
$15.3M
ENDOCYTE INC
$15.1M
RA PHARMACEUTICALS INC
$13.6M
RIGLUSDRIGEL PHARMACEUTICALS INC
$13.2M
INTERSECT ENT INC
$13.2M
EPIZYME INC
$13.2M
ELANELANCO ANIMAL HEALTH INC
$13.1M
ACRSACLARIS THERAPEUTICS INC
$12.8M
ARGXARGENX SE
$12.5M
MOMENTA PHARMACEUTICALS INC
$12.5M
GTHXEURG1 THERAPEUTICS INC
$12.2M
BMRNBIOMARIN PHARMACEUTICAL INC
$12.1M
AM6AMICUS THERAPEUTICS INC
$12.1M
ZOGENIX INC
$11.7M
AG8AGILENT TECHNOLOGIES INC
$11.6M
RETROPHIN INC
$11.5M
MRTXEURMIRATI THERAPEUTICS INC
$11.3M
CHRSCOHERUS BIOSCIENCES INC
$11.1M
ARDXARDELYX INC
$11.0M
FIXXEURHOMOLOGY MEDICINES INC
$10.7M
EX9EXELIXIS INC
$10.5M
ADAPYADAPTIMMUNE THERAPEUTICS PLC
$10.2M
TRANSLATE BIO INC
$10.1M
MERSANA THERAPEUTICS INC
$10.0M
BIOHAVEN PHARMACTL HLDG CO L
$9.8M
MYOVANT SCIENCES LTD
$9.2M
APTINYX INC
$8.8M
ACHILLION PHARMACEUTICALS IN
$8.8M
RTI SURGICAL INC
$8.8M
PORTOLA PHARMACEUTICALS INC
$8.6M
ODONATE THERAPEUTICS INC
$8.5M
FIVE PRIME THERAPEUTICS INC
$8.3M
CLVSEURCLOVIS ONCOLOGY INC
$8.0M
ENTAENANTA PHARMACEUTICALS INC
$7.9M
BLUEBIRD BIO INC
$7.7M
KURAKURA ONCOLOGY INC
$7.1M
SG7SAGE THERAPEUTICS INC
$6.9M
ZLABZAI LAB LTD
$6.8M
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