Rock Springs Capital Management LP Q1 2017 Filing

Filed May 15, 2017

Portfolio Value

$1.7B

Holdings

140

Report Date

Q1 2017

Filing Type

13F-HR

All Holdings (140 positions)

StockValue
TESARO INC
$73.1M
ACHCACADIA HEALTHCARE COMPANY IN
$55.6M
ALXNALEXION PHARMACEUTICALS INC
$55.4M
MRKMERCK & CO INC
$47.7M
PCRXPACIRA PHARMACEUTICALS INC
$45.6M
GW PHARMACEUTICALS PLC
$43.1M
ALLERGAN PLC
$39.7M
CICIGNA CORPORATION
$39.6M
ISRGINTUITIVE SURGICAL INC
$36.8M
RADIUS HEALTH INC
$35.2M
MEDICINES CO
$34.2M
ADVANCED ACCELERATOR APPLIC
$33.9M
SPARK THERAPEUTICS INC
$33.3M
WCGEURWELLCARE HEALTH PLANS INC
$32.9M
CELGCELGENE CORP
$30.2M
PRAHPRA HEALTH SCIENCES INC
$29.8M
AETNA INC NEW
$28.1M
LLYLILLY ELI & CO
$27.3M
HUMHUMANA INC
$27.3M
UNHUNITEDHEALTH GROUP INC
$27.1M
PENPENUMBRA INC
$25.9M
ARDXARDELYX INC
$25.3M
BMYBRISTOL MYERS SQUIBB CO
$24.6M
SHIRE PLC
$24.2M
INCYINCYTE CORP
$22.6M
TBPHTHERAVANCE BIOPHARMA INC
$22.1M
JNJJOHNSON & JOHNSON
$21.8M
WRIGHT MED GROUP N V
$20.9M
ACRSACLARIS THERAPEUTICS INC
$20.1M
GILDGILEAD SCIENCES INC
$19.5M
GLPGGALAPAGOS NV
$18.1M
JAZZJAZZ PHARMACEUTICALS PLC
$18.0M
NBIXNEUROCRINE BIOSCIENCES INC
$17.8M
PRTAPROTHENA CORP PLC
$17.3M
COLLCOLLEGIUM PHARMACEUTICAL INC
$17.1M
RA PHARMACEUTICALS INC
$16.8M
AMGNAMGEN INC
$16.1M
AMRNAMARIN CORP PLC
$16.0M
HOLXHOLOGIC INC
$14.5M
WTWWILLIS TOWERS WATSON PUB LTD
$14.4M
CHRSCOHERUS BIOSCIENCES INC
$14.3M
DHRDANAHER CORP DEL
$13.7M
EWEDWARDS LIFESCIENCES CORP
$13.4M
WBAWALGREENS BOOTS ALLIANCE INC
$13.4M
NVTA1EURINVITAE CORP
$13.3M
DERMIRA INC
$13.2M
BIIBBIOGEN INC
$13.1M
CLVSEURCLOVIS ONCOLOGY INC
$11.7M
THERAPEUTICSMD INC
$11.5M
HEALTHSOUTH CORP
$11.3M
BMRNBIOMARIN PHARMACEUTICAL INC
$11.0M
ALMOST FAMILY INC
$10.9M
RAREULTRAGENYX PHARMACEUTICAL IN
$10.8M
AVEXIS INC
$10.6M
PATHEON N V
$10.5M
PARATEK PHARMACEUTICALS INC
$10.1M
ASMBASSEMBLY BIOSCIENCES INC
$9.9M
VRTXVERTEX PHARMACEUTICALS INC
$9.9M
EPIZYME INC
$9.8M
ONCBEIGENE LTD
$9.7M
MRUSMERUS N V
$9.4M
ASNDASCENDIS PHARMA A S
$9.1M
ENVISION HEALTHCARE CORP
$8.9M
CRVSCORVUS PHARMACEUTICALS INC
$8.8M
OBSEVA SA
$8.7M
AUDENTES THERAPEUTICS INC
$8.5M
IM8NINSMED INC
$8.2M
EXASEXACT SCIENCES CORP
$8.0M
LOXO ONCOLOGY INC
$7.6M
RTI SURGICAL INC
$7.4M
CLSDUSDCLEARSIDE BIOMEDICAL INC
$7.4M
RETROPHIN INC
$7.4M
ALKSALKERMES PLC
$7.3M
ATHENAHEALTH INC
$7.1M
EGALET CORP
$6.5M
TTPHEURTETRAPHASE PHARMACEUTICALS I
$6.4M
AIMMUNE THERAPEUTICS INC
$6.4M
ACHILLION PHARMACEUTICALS IN
$6.3M
NABRIVA THERAPEUTICS AG
$6.3M
FIVE PRIME THERAPEUTICS INC
$6.0M
INTERSECT ENT INC
$5.9M
FGENEURFIBROGEN INC
$5.9M
CHINA CORD BLOOD CORP
$5.9M
REGNREGENERON PHARMACEUTICALS
$5.9M
SRPTSAREPTA THERAPEUTICS INC
$5.7M
GBTUSDGLOBAL BLOOD THERAPEUTICS IN
$5.5M
AM6AMICUS THERAPEUTICS INC
$5.4M
LGNDLIGAND PHARMACEUTICALS INC
$5.3M
KITE PHARMA INC
$5.3M
ADAPYADAPTIMMUNE THERAPEUTICS PLC
$4.8M
MEDICINES CO
$4.7M
STERIS PLC
$4.5M
ADURO BIOTECH INC
$4.5M
JUNO THERAPEUTICS INC
$4.4M
NOVADAQ TECHNOLOGIES INC
$4.3M
ALLERGAN PLC
$4.2M
MGNXMACROGENICS INC
$4.2M
AGLEUSDAEGLEA BIOTHERAPEUTICS INC
$3.9M
EX9EXELIXIS INC
$3.8M
ALDER BIOPHARMACEUTICALS INC
$3.8M
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