Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q2 2019 (← Previous) (Next →)

Filing Date: Aug 14, 2019

Total Value ($000): $2,764,118 (99.1% shares, 0.9% debt)

Holdings (135)

UNH UNITEDHEALTH GROUP INC 5.2%
Value ($000) $144,210 Shares 591,000 Est. Cost $164.29 Unrealized +31.2%
GW PHARMACEUTICALS PLC 3.8%
Value ($000) $104,296 Shares 605,000 Est. Cost $110.88 Unrealized
WELLCARE HEALTH PLANS INC 3.3%
Value ($000) $91,365 Shares 320,500 Est. Cost $187.33 Unrealized
AMARIN CORP PLC 3.2%
Value ($000) $87,740 Shares 4,525,000 Est. Cost $4.67 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 3.1%
Value ($000) $86,372 Shares 1,023,000 Est. Cost $58.49 Unrealized +40.4%
ISRG INTUITIVE SURGICAL INC 2.9%
Value ($000) $79,994 Shares 152,500 Est. Cost $105.96 Unrealized +61.7%
HCA HCA HEALTHCARE INC 2.2%
Value ($000) $61,502 Shares 455,000 Est. Cost $92.21 Unrealized +29.5%
PCRX PACIRA BIOSCIENCES 2.0%
Value ($000) $54,363 Shares 1,250,000 Est. Cost $47.44 Unrealized -10.5%
SPARK THERAPEUTICS INC 1.9%
Value ($000) $51,740 Shares 505,371 Est. Cost $58.20 Unrealized
EHC ENCOMPASS HEALTH CORP 1.8%
Value ($000) $51,005 Shares 805,000 Est. Cost $45.88 Unrealized -2.7%
SRPT SAREPTA THERAPEUTICS INC 1.8%
Value ($000) $49,384 Shares 325,000 Est. Cost $50.84 Unrealized +139.1%
BMY BRISTOL MYERS SQUIBB CO 1.7%
Value ($000) $47,618 Shares 1,050,000 Est. Cost $36.12 Unrealized 0.0%
EXAS EXACT SCIENCES CORP 1.7%
Value ($000) $46,862 Shares 397,000 Est. Cost $23.92 Unrealized +321.3%
TFX TELEFLEX INC 1.6%
Value ($000) $43,050 Shares 130,000 Est. Cost $242.14 Unrealized +19.9%
BSX BOSTON SCIENTIFIC CORP 1.5%
Value ($000) $41,691 Shares 970,000 Est. Cost $34.42 Unrealized +11.7%
CHRS COHERUS BIOSCIENCES INC 1.5%
Value ($000) $41,548 Shares 1,880,000 Est. Cost $18.77 Unrealized -7.5%
IRTC IRHYTHM TECHNOLOGIES INC 1.4%
Value ($000) $39,510 Shares 499,615 Est. Cost $49.38 Unrealized +47.5%
PEN PENUMBRA INC 1.4%
Value ($000) $38,240 Shares 239,000 Est. Cost $53.71 Unrealized +168.9%
VRTX VERTEX PHARMACEUTICALS INC 1.3%
Value ($000) $37,226 Shares 203,000 Est. Cost $117.87 Unrealized +48.3%
ACHC ACADIA HEALTHCARE COMPANY IN 1.3%
Value ($000) $36,872 Shares 1,055,000 Est. Cost $48.00 Unrealized -32.6%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.3%
Value ($000) $36,830 Shares 580,000 Est. Cost $57.71 Unrealized +10.3%
SYK STRYKER CORP 1.3%
Value ($000) $36,799 Shares 179,000 Est. Cost $141.99 Unrealized +25.2%
EW EDWARDS LIFESCIENCES CORP 1.2%
Value ($000) $33,900 Shares 183,500 Est. Cost $33.73 Unrealized +79.3%
IDXX IDEXX LABS INC 1.2%
Value ($000) $33,095 Shares 120,200 Est. Cost $198.10 Unrealized +24.4%
ALEXION PHARMACEUTICALS INC 1.1%
Value ($000) $31,763 Shares 242,500 Est. Cost $138.55 Unrealized
RADIUS HEALTH INC 1.1%
Value ($000) $30,450 Shares 1,250,000 Est. Cost $37.49 Unrealized
MOH MOLINA HEALTHCARE INC 1.1%
Value ($000) $29,487 Shares 206,000 Est. Cost $65.41 Unrealized +109.4%
PODD INSULET CORP 1.1%
Value ($000) $29,188 Shares 244,500 Est. Cost $102.53 Unrealized 0.0%
MEDICINES CO 1.1%
Value ($000) $29,176 Shares 800,000 Est. Cost $32.66 Unrealized
BLUEPRINT MEDICINES CORP 1.0%
Value ($000) $29,006 Shares 307,500 Est. Cost $74.75 Unrealized
ADPT ADAPTIVE BIOTECHNOLOGIES COR 1.0%
Value ($000) $28,980 Shares 600,000 Est. Cost $44.30 Unrealized 0.0%
ALGN ALIGN TECHNOLOGY INC 1.0%
Value ($000) $28,739 Shares 105,000 Est. Cost $198.28 Unrealized +52.3%
CI CIGNA CORP NEW 1.0%
Value ($000) $28,721 Shares 182,300 Est. Cost $155.03 Unrealized -7.5%
PORTOLA PHARMACEUTICALS INC 1.0%
Value ($000) $27,347 Shares 1,008,000 Est. Cost $39.73 Unrealized
MDGL MADRIGAL PHARMACEUTICALS INC 1.0%
Value ($000) $26,926 Shares 256,900 Est. Cost $35.98 Unrealized +197.7%
ONC BEIGENE LTD 1.0%
Value ($000) $26,624 Shares 214,800 Est. Cost $33.43 Unrealized
INCY INCYTE CORP 1.0%
Value ($000) $26,533 Shares 312,300 Est. Cost $68.12 Unrealized +17.8%
INVITAE CORP 1.0%
Value ($000) $26,438 Shares 1,125,000 Est. Cost $10.13 Unrealized
ARGX ARGENX SE 0.9%
Value ($000) $25,725 Shares 181,700 Est. Cost $83.26 Unrealized
BAX BAXTER INTL INC 0.9%
Value ($000) $24,627 Shares 300,700 Est. Cost $51.40 Unrealized +33.2%
ASND ASCENDIS PHARMA A S 0.9%
Value ($000) $24,585 Shares 213,500 Est. Cost $18.03 Unrealized
RA PHARMACEUTICALS INC 0.9%
Value ($000) $24,176 Shares 804,000 Est. Cost $14.70 Unrealized
PRA HEALTH SCIENCES INC 0.9%
Value ($000) $23,796 Shares 240,000 Est. Cost $54.18 Unrealized
TMO THERMO FISHER SCIENTIFIC INC 0.9%
Value ($000) $23,788 Shares 81,000 Est. Cost $165.72 Unrealized +63.4%
ALNY ALNYLAM PHARMACEUTICALS INC 0.9%
Value ($000) $23,778 Shares 327,700 Est. Cost $82.95 Unrealized -7.5%
EPIZYME INC 0.8%
Value ($000) $23,219 Shares 1,850,100 Est. Cost $13.92 Unrealized
BIIB BIOGEN INC 0.8%
Value ($000) $22,802 Shares 97,500 Est. Cost Unrealized
INSM INSMED INC 0.8%
Value ($000) $22,784 Shares 890,000 Est. Cost $20.30 Unrealized +37.2%
GLPG GALAPAGOS NV 0.8%
Value ($000) $21,273 Shares 165,000 Est. Cost $50.00 Unrealized
MIRATI THERAPEUTICS INC 0.8%
Value ($000) $20,858 Shares 202,500 Est. Cost $41.06 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.8%
Value ($000) $20,749 Shares 1,577,893 Est. Cost $15.97 Unrealized -16.3%
ZLAB ZAI LAB LTD 0.7%
Value ($000) $19,179 Shares 550,000 Est. Cost $28.53 Unrealized
RETROPHIN INC 0.7%
Value ($000) $19,086 Shares 950,000 Est. Cost $22.85 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.7%
Value ($000) $18,673 Shares 1,423,256 Est. Cost $6.46 Unrealized
ALDER BIOPHARMACEUTICALS INC 0.7%
Value ($000) $18,388 Shares 1,562,300 Est. Cost $13.92 Unrealized
INTERSECT ENT INC 0.7%
Value ($000) $17,980 Shares 790,000 Est. Cost $25.82 Unrealized
ALLAKOS INC 0.6%
Value ($000) $17,505 Shares 404,000 Est. Cost $44.99 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.6%
Value ($000) $17,208 Shares 137,500 Est. Cost $92.27 Unrealized +25.6%
CELGENE CORP 0.6%
Value ($000) $17,115 Shares 185,150 Est. Cost $112.23 Unrealized
SAGE THERAPEUTICS INC 0.6%
Value ($000) $16,936 Shares 92,500 Est. Cost $125.91 Unrealized
SEATTLE GENETICS INC 0.6%
Value ($000) $16,749 Shares 242,000 Est. Cost $59.37 Unrealized
GH GUARDANT HEALTH INC 0.6%
Value ($000) $16,403 Shares 190,000 Est. Cost $38.92 Unrealized +96.2%
AXONICS MODULATION TECH INC 0.6%
Value ($000) $16,388 Shares 400,000 Est. Cost $15.11 Unrealized
ODONATE THERAPEUTICS INC 0.6%
Value ($000) $15,777 Shares 430,000 Est. Cost $24.20 Unrealized
AUDENTES THERAPEUTICS INC 0.6%
Value ($000) $15,523 Shares 410,000 Est. Cost $20.08 Unrealized
BIOHAVEN PHARMACTL HLDG CO L 0.5%
Value ($000) $15,042 Shares 343,500 Est. Cost $31.69 Unrealized
GLOBAL BLOOD THERAPEUTICS IN 0.5%
Value ($000) $13,939 Shares 265,000 Est. Cost $38.46 Unrealized
FIBROGEN INC 0.5%
Value ($000) $13,825 Shares 306,000 Est. Cost $29.90 Unrealized
A AGILENT TECHNOLOGIES INC 0.5%
Value ($000) $13,650 Shares 182,800 Est. Cost $64.15 Unrealized +10.2%
TRANSLATE BIO INC 0.5%
Value ($000) $12,746 Shares 1,009,179 Est. Cost $12.65 Unrealized
NEVRO CORP 0.5%
Value ($000) $12,674 Shares 195,500 Est. Cost $64.42 Unrealized
OBSEVA SA 0.5%
Value ($000) $12,667 Shares 1,120,000 Est. Cost $11.59 Unrealized
FOLD AMICUS THERAPEUTICS INC 0.5%
Value ($000) $12,480 Shares 1,000,000 Est. Cost $11.48 Unrealized +10.6%
IMMUNOMEDICS INC 0.4%
Value ($000) $12,414 Shares 895,000 Est. Cost $17.07 Unrealized
NVCR NOVOCURE LTD 0.4%
Value ($000) $12,330 Shares 195,000 Est. Cost $36.98 Unrealized +37.0%
ANAB ANAPTYSBIO INC 0.4%
Value ($000) $12,328 Shares 218,500 Est. Cost $49.90 Unrealized +44.3%
BMRN BIOMARIN PHARMACEUTICAL INC 0.4%
Value ($000) $12,205 Shares 142,500 Est. Cost $99.12 Unrealized -13.7%
AXGN AXOGEN INC 0.4%
Value ($000) $11,959 Shares 603,970 Est. Cost $19.50 Unrealized +9.8%
ZOGENIX INC 0.4%
Value ($000) $11,228 Shares 235,000 Est. Cost $38.28 Unrealized
RIGEL PHARMACEUTICALS INC 0.4%
Value ($000) $10,962 Shares 4,200,000 Est. Cost $3.20 Unrealized
ABBV ABBVIE INC 0.4%
Value ($000) $10,908 Shares 150,000 Est. Cost $59.38 Unrealized 0.0%
FRPT FRESHPET INC 0.4%
Value ($000) $10,695 Shares 235,000 Est. Cost $34.80 Unrealized +30.1%
TBPH THERAVANCE BIOPHARMA INC 0.3%
Value ($000) $8,982 Shares 550,000 Est. Cost $20.11 Unrealized +0.8%
AGIO AGIOS PHARMACEUTICALS INC 0.3%
Value ($000) $8,505 Shares 170,500 Est. Cost $56.75 Unrealized -5.8%
HOMOLOGY MEDICINES INC 0.3%
Value ($000) $8,317 Shares 425,000 Est. Cost $18.81 Unrealized
RTI SURGICAL HOLDINGS INC 0.3%
Value ($000) $8,288 Shares 1,950,000 Est. Cost $4.35 Unrealized
KARUNA THERAPEUTICS INC 0.3%
Value ($000) $8,278 Shares 413,500 Est. Cost $20.02 Unrealized
ACHILLION PHARMACEUTICALS IN 0.3%
Value ($000) $7,906 Shares 2,950,000 Est. Cost $6.27 Unrealized
ASSEMBLY BIOSCIENCES INC 0.3%
Value ($000) $7,554 Shares 560,000 Est. Cost $17.66 Unrealized
DERMIRA INC 0.3%
Value ($000) $7,409 Shares 775,000 Est. Cost $16.41 Unrealized
PBYI PUMA BIOTECHNOLOGY INC 0.2%
Value ($000) $6,792 Shares 534,400 Est. Cost $67.17 Unrealized -65.7%
CYMABAY THERAPEUTICS INC 0.2%
Value ($000) $6,444 Shares 900,000 Est. Cost $9.33 Unrealized
SPRO SPERO THERAPEUTICS INC 0.2%
Value ($000) $6,043 Shares 525,000 Est. Cost $12.27 Unrealized -1.9%
BLUEBIRD BIO INC 0.2%
Value ($000) $5,978 Shares 47,000 Est. Cost $127.01 Unrealized
INSMED INC 0.2%
Value ($000) $5,849 Shares 6,000,000 Est. Cost $0.89 Unrealized
MERSANA THERAPEUTICS INC 0.2%
Value ($000) $5,670 Shares 1,400,000 Est. Cost $11.48 Unrealized
ELV ANTHEM INC 0.2%
Value ($000) $5,644 Shares 20,000 Est. Cost $263.72 Unrealized -5.3%
AEGLEA BIOTHERAPEUTICS INC 0.2%
Value ($000) $5,480 Shares 800,000 Est. Cost $6.36 Unrealized
ARDX ARDELYX INC 0.2%
Value ($000) $5,380 Shares 2,000,000 Est. Cost $9.90 Unrealized -69.6%
CORBF GLOBAL CORD BLOOD CORPORATIO 0.2%
Value ($000) $5,347 Shares 925,000 Est. Cost $9.99 Unrealized -34.0%
RYTM RHYTHM PHARMACEUTICALS INC 0.2%
Value ($000) $5,170 Shares 235,000 Est. Cost $26.89 Unrealized -6.1%
NGM BIOPHARMACEUTICALS INC 0.2%
Value ($000) $5,140 Shares 351,100 Est. Cost $14.64 Unrealized
MGNX MACROGENICS INC 0.2%
Value ($000) $5,091 Shares 300,000 Est. Cost $20.97 Unrealized -18.1%
GAMIDA CELL LTD 0.2%
Value ($000) $5,080 Shares 1,000,000 Est. Cost $5.08 Unrealized
MEDICINES CO 0.2%
Value ($000) $5,026 Shares 5,000,000 Est. Cost $1.05 Unrealized
MOMENTA PHARMACEUTICALS INC 0.2%
Value ($000) $4,980 Shares 400,000 Est. Cost $19.06 Unrealized
CHIASMA INC 0.2%
Value ($000) $4,856 Shares 650,000 Est. Cost $16.07 Unrealized
ALDER BIOPHARMACEUTICALS INC 0.2%
Value ($000) $4,672 Shares 5,000,000 Est. Cost $0.93 Unrealized
ACRS ACLARIS THERAPEUTICS INC 0.2%
Value ($000) $4,441 Shares 2,028,000 Est. Cost $12.82 Unrealized -57.5%
AKERO THERAPEUTICS INC 0.2%
Value ($000) $4,309 Shares 225,000 Est. Cost $19.15 Unrealized
CGEN COMPUGEN LTD 0.2%
Value ($000) $4,224 Shares 1,100,000 Est. Cost $5.48 Unrealized -35.4%
RESTORBIO INC 0.1%
Value ($000) $4,080 Shares 400,000 Est. Cost $11.32 Unrealized
MYOVANT SCIENCES LTD 0.1%
Value ($000) $4,073 Shares 450,000 Est. Cost $14.19 Unrealized
INTERCEPT PHARMACEUTICALS IN 0.1%
Value ($000) $3,979 Shares 50,000 Est. Cost $79.58 Unrealized
LA JOLLA PHARMACEUTICAL CO 0.1%
Value ($000) $3,931 Shares 425,000 Est. Cost $21.31 Unrealized
NABRIVA THERAPEUTICS PLC 0.1%
Value ($000) $3,888 Shares 1,600,000 Est. Cost $5.28 Unrealized
CLOVIS ONCOLOGY INC 0.1%
Value ($000) $3,807 Shares 256,000 Est. Cost $53.62 Unrealized
MEDICINES CO 0.1%
Value ($000) $3,618 Shares 3,000,000 Est. Cost $1.14 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.1%
Value ($000) $3,518 Shares 875,000 Est. Cost $13.74 Unrealized
ARVN ARVINAS INC 0.1%
Value ($000) $3,299 Shares 150,000 Est. Cost $16.46 Unrealized +27.7%
FIVE PRIME THERAPEUTICS INC 0.1%
Value ($000) $3,172 Shares 526,100 Est. Cost $22.40 Unrealized
DYNAVAX TECHNOLOGIES CORP 0.1%
Value ($000) $2,594 Shares 650,000 Est. Cost $12.35 Unrealized
CORREVIO PHARMA CORP 0.1%
Value ($000) $2,592 Shares 1,200,000 Est. Cost $3.78 Unrealized
PARATEK PHARMACEUTICALS INC 0.1%
Value ($000) $1,796 Shares 450,000 Est. Cost $15.77 Unrealized
CRVS CORVUS PHARMACEUTICALS INC 0.1%
Value ($000) $1,496 Shares 400,000 Est. Cost $13.05 Unrealized -70.0%
RADIUS HEALTH INC 0.0%
Value ($000) $1,361 Shares 1,500,000 Est. Cost $1.01 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value ($000) $1,317 Shares 1,000,000 Est. Cost $1.45 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value ($000) $1,290 Shares 1,500,000 Est. Cost $1.14 Unrealized
KLDO KALEIDO BIOSCIENCES INC 0.0%
Value ($000) $1,161 Shares 100,050 Est. Cost $13.76 Unrealized +5.8%
PACIRA BIOSCIENCES 0.0%
Value ($000) $1,026 Shares 1,000,000 Est. Cost $0.91 Unrealized
NVAX NOVAVAX INC 0.0%
Value ($000) $952 Shares 162,500 Est. Cost $7.87 Unrealized 0.0%
DERMIRA INC 0.0%
Value ($000) $865 Shares 1,000,000 Est. Cost $0.83 Unrealized
COVETRUS INC 0.0%
Value ($000) $788 Shares 32,231 Est. Cost $31.85 Unrealized
HRTX HERON THERAPEUTICS INC 0.0%
Value ($000) $558 Shares 30,000 Est. Cost $20.50 Unrealized -2.6%
PROTEOSTASIS THERAPEUTICS IN 0.0%
Value ($000) $390 Shares 400,000 Est. Cost $3.24 Unrealized