Rock Springs Capital Management LP Q4 2019 Filing

Filed February 14, 2020

Portfolio Value

$3.2T

Holdings

130

Report Date

Q4 2019

Filing Type

13F-HR

All Holdings (130 positions)

StockValue
UNHUNITEDHEALTH GROUP INC
$173.7M
NBIXNEUROCRINE BIOSCIENCES INC
$137.4M
WCGEURWELLCARE HEALTH PLANS INC
$105.8M
AMRNAMARIN CORP PLC
$99.7M
ISRGINTUITIVE SURGICAL INC
$90.2M
JNJJOHNSON & JOHNSON
$81.3M
HCAHCA HEALTHCARE INC
$69.1M
HUMHUMANA INC
$67.8M
EHCENCOMPASS HEALTH CORP
$56.5M
BSXBOSTON SCIENTIFIC CORP
$54.3M
PCRXPACIRA BIOSCIENCES
$52.1M
EPIZYME INC
$50.4M
TFXTELEFLEX INC
$48.9M
PODDINSULET CORP
$44.6M
SRPTSAREPTA THERAPEUTICS INC
$44.6M
VRTXVERTEX PHARMACEUTICALS INC
$44.4M
BAXBAXTER INTL INC
$43.9M
EWEDWARDS LIFESCIENCES CORP
$42.8M
IRTCIRHYTHM TECHNOLOGIES INC
$42.5M
ALNYALNYLAM PHARMACEUTICALS INC
$41.9M
PENPENUMBRA INC
$39.8M
ARGXARGENX SE
$39.7M
EXASEXACT SCIENCES CORP
$38.8M
MRTXEURMIRATI THERAPEUTICS INC
$38.7M
ARDXARDELYX INC
$36.4M
GLPGGALAPAGOS NV
$36.2M
ONCBEIGENE LTD
$35.6M
RA PHARMACEUTICALS INC
$35.2M
CHRSCOHERUS BIOSCIENCES INC
$35.1M
APREAPREA THERAPEUTICS INC
$33.2M
NVROEURNEVRO CORP
$32.8M
COLLCOLLEGIUM PHARMACEUTICAL INC
$32.4M
ACHCACADIA HEALTHCARE COMPANY IN
$32.4M
IDXXIDEXX LABS INC
$31.4M
AFWALIGN TECHNOLOGY INC
$30.9M
ASMBASSEMBLY BIOSCIENCES INC
$30.7M
AGIOAGIOS PHARMACEUTICALS INC
$30.6M
2L9BLUEPRINT MEDICINES CORP
$30.6M
MIRMMIRUM PHARMACEUTICALS INC
$30.5M
AXNX*AXONICS MODULATION TECH INC
$30.5M
AMGNAMGEN INC
$30.4M
RAREULTRAGENYX PHARMACEUTICAL IN
$29.9M
ASNDASCENDIS PHARMA A S
$29.7M
QUREUNIQURE NV
$28.7M
ACADACADIA PHARMACEUTICALS INC
$28.7M
BMRNBIOMARIN PHARMACEUTICAL INC
$28.5M
SGENEURSEATTLE GENETICS INC
$27.7M
TMOTHERMO FISHER SCIENTIFIC INC
$26.3M
DCPHEURDECIPHERA PHARMACEUTICALS IN
$26.3M
MEDICINES CO
$26.1M
ZLABZAI LAB LTD
$26.0M
AUDENTES THERAPEUTICS INC
$24.5M
WSTWEST PHARMACEUTICAL SVSC INC
$22.9M
MDGLMADRIGAL PHARMACEUTICALS INC
$22.8M
ALLKGUSDALLAKOS INC
$22.4M
ACHILLION PHARMACEUTICALS IN
$22.2M
INCYINCYTE CORP
$21.8M
PORTOLA PHARMACEUTICALS INC
$21.5M
IMMUNOMEDICS INC
$21.2M
GBTUSDGLOBAL BLOOD THERAPEUTICS IN
$21.1M
FRPTFRESHPET INC
$21.0M
RADIUS HEALTH INC
$20.2M
INTERSECT ENT INC
$19.9M
NVTA1EURINVITAE CORP
$19.4M
IM8NINSMED INC
$19.1M
FORTY SEVEN INC
$17.7M
TBPHTHERAVANCE BIOPHARMA INC
$17.0M
ADPTADAPTIVE BIOTECHNOLOGIES COR
$16.3M
CICIGNA CORP NEW
$15.3M
HQYHEALTHEQUITY INC
$15.2M
OSWONESPAWORLD HOLDINGS LIMITED
$15.2M
PHRPHREESIA INC
$15.1M
GHGUARDANT HEALTH INC
$14.8M
NVCRNOVOCURE LTD
$14.5M
CNCCENTENE CORP DEL
$14.4M
ODONATE THERAPEUTICS INC
$14.0M
KRTXKARUNA THERAPEUTICS INC
$13.6M
FGENEURFIBROGEN INC
$13.1M
ZOGENIX INC
$13.0M
RIGLUSDRIGEL PHARMACEUTICALS INC
$11.8M
MYOKARDIA INC
$11.7M
CONSTELLATION PHARMCETICLS I
$11.0M
BIOHAVEN PHARMACTL HLDG CO L
$10.9M
ARVNARVINAS INC
$10.3M
DERMIRA INC
$9.9M
AM6AMICUS THERAPEUTICS INC
$9.7M
BMYBRISTOL MYERS SQUIBB CO
$9.6M
DVAXDYNAVAX TECHNOLOGIES CORP
$9.0M
FIXXEURHOMOLOGY MEDICINES INC
$8.8M
MEDICINES CO
$8.7M
RETROPHIN INC
$8.2M
RYTMRHYTHM PHARMACEUTICALS INC
$7.9M
MOMENTA PHARMACEUTICALS INC
$7.9M
MYOVANT SCIENCES LTD
$7.8M
TRANSLATE BIO INC
$7.7M
MERSANA THERAPEUTICS INC
$7.1M
PHASEBIO PHARMACEUTICALS INC
$6.9M
ICPTUSDINTERCEPT PHARMACEUTICALS IN
$6.7M
GRTXGALERA THERAPEUTICS INC
$6.6M
CGENCOMPUGEN LTD
$6.6M
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