Rock Springs Capital Management LP Q2 2017 Filing

Filed August 14, 2017

Portfolio Value

$2.0B

Holdings

148

Report Date

Q2 2017

Filing Type

13F-HR

All Holdings (148 positions)

StockValue
TESARO INC
$68.6M
ACHCACADIA HEALTHCARE COMPANY IN
$66.7M
AETNA INC NEW
$58.9M
UNHUNITEDHEALTH GROUP INC
$58.2M
ALXNALEXION PHARMACEUTICALS INC
$56.3M
PCRXPACIRA PHARMACEUTICALS INC
$49.7M
MRKMERCK & CO INC
$48.6M
CICIGNA CORPORATION
$45.2M
ISRGINTUITIVE SURGICAL INC
$44.9M
RADIUS HEALTH INC
$41.2M
ALLERGAN PLC
$37.9M
SPARK THERAPEUTICS INC
$37.3M
GW PHARMACEUTICALS PLC
$36.6M
MDTMEDTRONIC PLC
$35.5M
WCGEURWELLCARE HEALTH PLANS INC
$35.5M
PRAHPRA HEALTH SCIENCES INC
$34.7M
ADVANCED ACCELERATOR APPLIC
$32.8M
HUMHUMANA INC
$31.9M
CELGCELGENE CORP
$31.8M
PENPENUMBRA INC
$27.2M
MEDICINES CO
$26.4M
TBPHTHERAVANCE BIOPHARMA INC
$23.9M
JNJJOHNSON & JOHNSON
$23.2M
LOXO ONCOLOGY INC
$23.1M
COLLCOLLEGIUM PHARMACEUTICAL INC
$22.5M
EWEDWARDS LIFESCIENCES CORP
$22.5M
ALMOST FAMILY INC
$22.3M
GILDGILEAD SCIENCES INC
$22.2M
INCYINCYTE CORP
$21.8M
CLVSEURCLOVIS ONCOLOGY INC
$21.7M
MERSANA THERAPEUTICS INC
$21.3M
NBIXNEUROCRINE BIOSCIENCES INC
$19.3M
JAZZJAZZ PHARMACEUTICALS PLC
$19.2M
TMOTHERMO FISHER SCIENTIFIC INC
$19.2M
HOLXHOLOGIC INC
$19.1M
DHRDANAHER CORP DEL
$19.0M
WRIGHT MED GROUP N V
$18.4M
MOHMOLINA HEALTHCARE INC
$18.2M
BCRUSDBARD C R INC
$18.2M
EPIZYME INC
$17.7M
AMRNAMARIN CORP PLC
$17.1M
GLPGGALAPAGOS NV
$16.9M
PRTAPROTHENA CORP PLC
$16.8M
VRTXVERTEX PHARMACEUTICALS INC
$16.6M
PBYIPUMA BIOTECHNOLOGY INC
$16.3M
WTWWILLIS TOWERS WATSON PUB LTD
$16.0M
PORTOLA PHARMACEUTICALS INC
$15.7M
EXASEXACT SCIENCES CORP
$15.5M
PARATEK PHARMACEUTICALS INC
$14.5M
BIIBBIOGEN INC
$14.4M
AVEXIS INC
$14.4M
BAXBAXTER INTL INC
$13.9M
HEALTHSOUTH CORP
$12.8M
ACRSACLARIS THERAPEUTICS INC
$11.9M
ONCBEIGENE LTD
$11.9M
NVTA1EURINVITAE CORP
$11.5M
RTI SURGICAL INC
$11.4M
AUDENTES THERAPEUTICS INC
$11.4M
BMRNBIOMARIN PHARMACEUTICAL INC
$11.4M
DERMIRA INC
$11.3M
RA PHARMACEUTICALS INC
$11.2M
ARDXARDELYX INC
$10.2M
RAREULTRAGENYX PHARMACEUTICAL IN
$10.0M
CHRSCOHERUS BIOSCIENCES INC
$10.0M
INTERSECT ENT INC
$9.6M
FGENEURFIBROGEN INC
$9.0M
ASNDASCENDIS PHARMA A S
$9.0M
MDGLMADRIGAL PHARMACEUTICALS INC
$8.8M
CLSDUSDCLEARSIDE BIOMEDICAL INC
$8.5M
THERAPEUTICSMD INC
$8.4M
ALNYALNYLAM PHARMACEUTICALS INC
$8.4M
CHINA CORD BLOOD CORP
$8.3M
ASMBASSEMBLY BIOSCIENCES INC
$8.1M
IM8NINSMED INC
$8.0M
ACHILLION PHARMACEUTICALS IN
$7.9M
REGNREGENERON PHARMACEUTICALS
$7.9M
RETROPHIN INC
$7.8M
BIOHAVEN PHARMACTL HLDG CO L
$7.7M
AM6AMICUS THERAPEUTICS INC
$7.6M
OBSEVA SA
$7.2M
NEURODERM LTD
$7.1M
KITE PHARMA INC
$7.0M
SRPTSAREPTA THERAPEUTICS INC
$6.9M
WBAWALGREENS BOOTS ALLIANCE INC
$6.7M
JUNO THERAPEUTICS INC
$6.7M
LXRXLEXICON PHARMACEUTICALS INC
$6.5M
MRUSMERUS N V
$6.4M
AXGNAXOGEN INC
$6.3M
AIMMUNE THERAPEUTICS INC
$6.0M
FIVE PRIME THERAPEUTICS INC
$5.9M
STERIS PLC
$5.9M
NABRIVA THERAPEUTICS PLC
$5.5M
GTHXEURG1 THERAPEUTICS INC
$5.4M
CARDIOME PHARMA CORP
$5.4M
MEDICINES CO
$5.3M
SGENEURSEATTLE GENETICS INC
$5.2M
CRVSCORVUS PHARMACEUTICALS INC
$5.1M
EGALET CORP
$5.0M
TTPHEURTETRAPHASE PHARMACEUTICALS I
$5.0M
ACADACADIA PHARMACEUTICALS INC
$4.9M
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