Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q3 2019 (← Previous) (Next →)

Filing Date: Nov 14, 2019

Total Value ($000): $2,509,651 (99.1% shares, 0.9% debt)

Holdings (138)

UNH UNITEDHEALTH GROUP INC 5.1%
Value ($000) $128,436 Shares 591,000 Est. Cost $164.29 Unrealized +32.2%
NBIX NEUROCRINE BIOSCIENCES INC 4.4%
Value ($000) $111,061 Shares 1,232,500 Est. Cost $64.43 Unrealized +45.0%
WELLCARE HEALTH PLANS INC 3.3%
Value ($000) $83,064 Shares 320,500 Est. Cost $187.33 Unrealized
ISRG INTUITIVE SURGICAL INC 3.3%
Value ($000) $82,339 Shares 152,500 Est. Cost $105.96 Unrealized +63.2%
AMARIN CORP PLC 2.8%
Value ($000) $70,494 Shares 4,650,000 Est. Cost $4.95 Unrealized
HCA HCA HEALTHCARE INC 2.2%
Value ($000) $56,296 Shares 467,500 Est. Cost $93.02 Unrealized +31.6%
EHC ENCOMPASS HEALTH CORP 2.1%
Value ($000) $51,573 Shares 815,000 Est. Cost $45.89 Unrealized +1.2%
SPARK THERAPEUTICS INC 2.0%
Value ($000) $49,011 Shares 505,371 Est. Cost $58.20 Unrealized
TFX TELEFLEX INC 1.8%
Value ($000) $44,168 Shares 130,000 Est. Cost $242.14 Unrealized +38.6%
PCRX PACIRA BIOSCIENCES 1.7%
Value ($000) $43,781 Shares 1,150,000 Est. Cost $47.44 Unrealized -15.9%
PODD INSULET CORP 1.7%
Value ($000) $42,964 Shares 260,500 Est. Cost $104.86 Unrealized +34.0%
IRTC IRHYTHM TECHNOLOGIES INC 1.6%
Value ($000) $41,131 Shares 555,000 Est. Cost $52.18 Unrealized +48.5%
EW EDWARDS LIFESCIENCES CORP 1.6%
Value ($000) $40,353 Shares 183,500 Est. Cost $33.73 Unrealized +108.3%
ACHC ACADIA HEALTHCARE COMPANY IN 1.6%
Value ($000) $40,093 Shares 1,290,000 Est. Cost $44.80 Unrealized -32.0%
MEDICINES CO 1.6%
Value ($000) $40,000 Shares 800,000 Est. Cost $32.66 Unrealized
ABBV ABBVIE INC 1.6%
Value ($000) $39,753 Shares 525,000 Est. Cost $54.53 Unrealized -3.6%
BSX BOSTON SCIENTIFIC CORP 1.6%
Value ($000) $39,469 Shares 970,000 Est. Cost $34.42 Unrealized +23.1%
EXAS EXACT SCIENCES CORP 1.6%
Value ($000) $39,017 Shares 431,750 Est. Cost $31.16 Unrealized +265.6%
SYK STRYKER CORP 1.5%
Value ($000) $38,718 Shares 179,000 Est. Cost $141.99 Unrealized +41.0%
CHRS COHERUS BIOSCIENCES INC 1.5%
Value ($000) $38,089 Shares 1,880,000 Est. Cost $18.77 Unrealized +6.4%
VRTX VERTEX PHARMACEUTICALS INC 1.4%
Value ($000) $34,392 Shares 203,000 Est. Cost $117.87 Unrealized +50.1%
BAX BAXTER INTL INC 1.3%
Value ($000) $33,676 Shares 385,000 Est. Cost $56.68 Unrealized +33.2%
RADIUS HEALTH INC 1.3%
Value ($000) $33,475 Shares 1,300,000 Est. Cost $37.04 Unrealized
CI CIGNA CORP NEW 1.3%
Value ($000) $32,923 Shares 216,900 Est. Cost $154.04 Unrealized -3.4%
IDXX IDEXX LABS INC 1.3%
Value ($000) $32,686 Shares 120,200 Est. Cost $198.10 Unrealized +40.5%
PEN PENUMBRA INC 1.3%
Value ($000) $32,614 Shares 242,500 Est. Cost $55.16 Unrealized +180.4%
PORTOLA PHARMACEUTICALS INC 1.1%
Value ($000) $28,161 Shares 1,050,000 Est. Cost $39.21 Unrealized
GLPG GALAPAGOS NV 1.1%
Value ($000) $26,716 Shares 175,000 Est. Cost $55.87 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 1.1%
Value ($000) $26,579 Shares 330,500 Est. Cost $82.95 Unrealized -4.6%
ONC BEIGENE LTD 1.0%
Value ($000) $26,304 Shares 214,800 Est. Cost $33.43 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 1.0%
Value ($000) $26,010 Shares 608,000 Est. Cost $57.55 Unrealized -5.6%
SRPT SAREPTA THERAPEUTICS INC 1.0%
Value ($000) $25,421 Shares 337,500 Est. Cost $53.33 Unrealized +121.5%
ALDER BIOPHARMACEUTICALS INC 1.0%
Value ($000) $24,518 Shares 1,300,000 Est. Cost $13.92 Unrealized
BLUEPRINT MEDICINES CORP 1.0%
Value ($000) $24,502 Shares 333,500 Est. Cost $74.65 Unrealized
AMGN AMGEN INC 1.0%
Value ($000) $24,382 Shares 126,000 Est. Cost $158.01 Unrealized 0.0%
TMO THERMO FISHER SCIENTIFIC INC 0.9%
Value ($000) $23,593 Shares 81,000 Est. Cost $165.72 Unrealized +69.9%
MOH MOLINA HEALTHCARE INC 0.9%
Value ($000) $23,535 Shares 214,500 Est. Cost $67.95 Unrealized +90.6%
MDGL MADRIGAL PHARMACEUTICALS INC 0.9%
Value ($000) $23,486 Shares 272,400 Est. Cost $39.27 Unrealized +138.9%
INCY INCYTE CORP 0.9%
Value ($000) $23,182 Shares 312,300 Est. Cost $68.12 Unrealized +18.7%
ALLAKOS INC 0.9%
Value ($000) $22,803 Shares 290,000 Est. Cost $44.99 Unrealized
INVITAE CORP 0.9%
Value ($000) $21,679 Shares 1,125,000 Est. Cost $10.13 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.9%
Value ($000) $21,628 Shares 152,500 Est. Cost $96.51 Unrealized +40.3%
NEVRO CORP 0.8%
Value ($000) $20,848 Shares 242,500 Est. Cost $68.59 Unrealized
ARGX ARGENX SE 0.8%
Value ($000) $20,707 Shares 181,700 Est. Cost $83.26 Unrealized
SEATTLE GENETICS INC 0.8%
Value ($000) $20,667 Shares 242,000 Est. Cost $59.37 Unrealized
ASND ASCENDIS PHARMA A S 0.8%
Value ($000) $20,564 Shares 213,500 Est. Cost $18.03 Unrealized
ALGN ALIGN TECHNOLOGY INC 0.8%
Value ($000) $20,064 Shares 110,900 Est. Cost $198.79 Unrealized +4.6%
MIRATI THERAPEUTICS INC 0.8%
Value ($000) $20,062 Shares 257,500 Est. Cost $48.93 Unrealized
RA PHARMACEUTICALS INC 0.8%
Value ($000) $19,748 Shares 835,000 Est. Cost $15.03 Unrealized
EPIZYME INC 0.8%
Value ($000) $19,084 Shares 1,850,100 Est. Cost $13.92 Unrealized
ZLAB ZAI LAB LTD 0.7%
Value ($000) $18,601 Shares 575,000 Est. Cost $28.69 Unrealized
CELGENE CORP 0.7%
Value ($000) $18,385 Shares 185,150 Est. Cost $112.23 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.7%
Value ($000) $18,114 Shares 1,577,893 Est. Cost $15.97 Unrealized -28.5%
FRPT FRESHPET INC 0.7%
Value ($000) $17,681 Shares 355,250 Est. Cost $38.49 Unrealized +18.7%
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.7%
Value ($000) $16,841 Shares 545,000 Est. Cost $44.30 Unrealized -7.9%
INSM INSMED INC 0.6%
Value ($000) $15,700 Shares 890,000 Est. Cost $20.30 Unrealized -4.9%
INTERSECT ENT INC 0.6%
Value ($000) $14,841 Shares 872,500 Est. Cost $24.99 Unrealized
ARDX ARDELYX INC 0.6%
Value ($000) $14,360 Shares 3,055,261 Est. Cost $7.68 Unrealized -54.8%
BIOHAVEN PHARMACTL HLDG CO L 0.6%
Value ($000) $14,331 Shares 343,500 Est. Cost $31.69 Unrealized
ACHILLION PHARMACEUTICALS IN 0.5%
Value ($000) $13,770 Shares 3,825,000 Est. Cost $5.66 Unrealized
SAGE THERAPEUTICS INC 0.5%
Value ($000) $12,977 Shares 92,500 Est. Cost $125.91 Unrealized
NVCR NOVOCURE LTD 0.5%
Value ($000) $12,900 Shares 172,500 Est. Cost $36.98 Unrealized +116.2%
GLOBAL BLOOD THERAPEUTICS IN 0.5%
Value ($000) $12,858 Shares 265,000 Est. Cost $38.46 Unrealized
ASSEMBLY BIOSCIENCES INC 0.5%
Value ($000) $12,779 Shares 1,300,000 Est. Cost $13.20 Unrealized
GH GUARDANT HEALTH INC 0.5%
Value ($000) $12,128 Shares 190,000 Est. Cost $38.92 Unrealized +126.3%
IMMUNOMEDICS INC 0.5%
Value ($000) $11,868 Shares 895,000 Est. Cost $17.07 Unrealized
AUDENTES THERAPEUTICS INC 0.5%
Value ($000) $11,517 Shares 410,000 Est. Cost $20.08 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 0.5%
Value ($000) $11,421 Shares 352,500 Est. Cost $48.82 Unrealized -15.2%
OBSEVA SA 0.5%
Value ($000) $11,329 Shares 1,360,000 Est. Cost $11.02 Unrealized
FIBROGEN INC 0.5%
Value ($000) $11,316 Shares 306,000 Est. Cost $29.90 Unrealized
ODONATE THERAPEUTICS INC 0.4%
Value ($000) $11,193 Shares 430,000 Est. Cost $24.20 Unrealized
RETROPHIN INC 0.4%
Value ($000) $11,011 Shares 950,000 Est. Cost $22.85 Unrealized
GW PHARMACEUTICALS PLC 0.4%
Value ($000) $10,928 Shares 95,000 Est. Cost $110.88 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.4%
Value ($000) $10,714 Shares 550,000 Est. Cost $20.11 Unrealized +0.5%
ABT ABBOTT LABS 0.4%
Value ($000) $10,250 Shares 122,500 Est. Cost $76.09 Unrealized 0.0%
TRANSLATE BIO INC 0.4%
Value ($000) $10,158 Shares 1,025,000 Est. Cost $12.61 Unrealized
ZOGENIX INC 0.4%
Value ($000) $10,010 Shares 250,000 Est. Cost $38.39 Unrealized
CNC CENTENE CORP DEL 0.4%
Value ($000) $9,941 Shares 229,800 Est. Cost $48.70 Unrealized 0.0%
BMRN BIOMARIN PHARMACEUTICAL INC 0.4%
Value ($000) $9,605 Shares 142,500 Est. Cost $99.12 Unrealized -22.3%
PHR PHREESIA INC 0.3%
Value ($000) $8,751 Shares 361,000 Est. Cost $26.37 Unrealized 0.0%
DECIPHERA PHARMACEUTICALS IN 0.3%
Value ($000) $8,485 Shares 250,000 Est. Cost $33.94 Unrealized
ANAB ANAPTYSBIO INC 0.3%
Value ($000) $8,398 Shares 240,000 Est. Cost $49.70 Unrealized -4.3%
FOLD AMICUS THERAPEUTICS INC 0.3%
Value ($000) $8,020 Shares 1,000,000 Est. Cost $11.48 Unrealized -5.4%
MIRM MIRUM PHARMACEUTICALS INC 0.3%
Value ($000) $7,948 Shares 790,048 Est. Cost $12.27 Unrealized 0.0%
RIGEL PHARMACEUTICALS INC 0.3%
Value ($000) $7,854 Shares 4,200,000 Est. Cost $3.20 Unrealized
HOMOLOGY MEDICINES INC 0.3%
Value ($000) $7,693 Shares 425,000 Est. Cost $18.81 Unrealized
QURE UNIQURE NV 0.3%
Value ($000) $7,656 Shares 194,500 Est. Cost $57.69 Unrealized 0.0%
JNJ JOHNSON & JOHNSON 0.3%
Value ($000) $7,245 Shares 56,000 Est. Cost $110.00 Unrealized 0.0%
ACAD ACADIA PHARMACEUTICALS INC 0.3%
Value ($000) $6,730 Shares 187,000 Est. Cost $30.32 Unrealized 0.0%
DYNAVAX TECHNOLOGIES CORP 0.3%
Value ($000) $6,614 Shares 1,850,000 Est. Cost $6.66 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value ($000) $6,585 Shares 305,000 Est. Cost $25.64 Unrealized -16.3%
ELV ANTHEM INC 0.3%
Value ($000) $6,483 Shares 27,000 Est. Cost $260.50 Unrealized -3.5%
PBYI PUMA BIOTECHNOLOGY INC 0.3%
Value ($000) $6,323 Shares 587,400 Est. Cost $62.09 Unrealized -82.6%
AEGLEA BIOTHERAPEUTICS INC 0.2%
Value ($000) $6,152 Shares 800,000 Est. Cost $6.36 Unrealized
MEDICINES CO 0.2%
Value ($000) $6,050 Shares 5,000,000 Est. Cost $1.05 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.2%
Value ($000) $5,908 Shares 1,416,900 Est. Cost $6.46 Unrealized
KARUNA THERAPEUTICS INC 0.2%
Value ($000) $5,882 Shares 360,400 Est. Cost $20.02 Unrealized
SPRO SPERO THERAPEUTICS INC 0.2%
Value ($000) $5,565 Shares 525,000 Est. Cost $12.27 Unrealized -14.2%
RTI SURGICAL HOLDINGS INC 0.2%
Value ($000) $5,558 Shares 1,950,000 Est. Cost $4.35 Unrealized
AXONICS MODULATION TECH INC 0.2%
Value ($000) $5,451 Shares 202,500 Est. Cost $15.11 Unrealized
MOMENTA PHARMACEUTICALS INC 0.2%
Value ($000) $5,184 Shares 400,000 Est. Cost $19.06 Unrealized
AKERO THERAPEUTICS INC 0.2%
Value ($000) $5,119 Shares 225,000 Est. Cost $19.15 Unrealized
INSMED INC 0.2%
Value ($000) $5,031 Shares 6,000,000 Est. Cost $0.89 Unrealized
DERMIRA INC 0.2%
Value ($000) $4,952 Shares 775,000 Est. Cost $16.41 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value ($000) $4,863 Shares 351,100 Est. Cost $14.64 Unrealized
CGEN COMPUGEN LTD 0.2%
Value ($000) $4,653 Shares 1,100,000 Est. Cost $5.48 Unrealized -31.7%
CYMABAY THERAPEUTICS INC 0.2%
Value ($000) $4,608 Shares 900,000 Est. Cost $9.33 Unrealized
NABRIVA THERAPEUTICS PLC 0.2%
Value ($000) $4,600 Shares 2,300,000 Est. Cost $4.28 Unrealized
MEDICINES CO 0.2%
Value ($000) $4,521 Shares 3,000,000 Est. Cost $1.14 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.2%
Value ($000) $4,477 Shares 925,000 Est. Cost $9.99 Unrealized -47.5%
CHIASMA INC 0.2%
Value ($000) $4,455 Shares 900,000 Est. Cost $12.98 Unrealized
GAMIDA CELL LTD 0.2%
Value ($000) $4,330 Shares 1,000,000 Est. Cost $5.08 Unrealized
BLUEBIRD BIO INC 0.2%
Value ($000) $4,316 Shares 47,000 Est. Cost $127.01 Unrealized
HCAT HEALTH CATALYST INC 0.2%
Value ($000) $3,955 Shares 125,000 Est. Cost $39.36 Unrealized 0.0%
MGNX MACROGENICS INC 0.2%
Value ($000) $3,828 Shares 300,000 Est. Cost $20.97 Unrealized -31.3%
LA JOLLA PHARMACEUTICAL CO 0.1%
Value ($000) $3,740 Shares 425,000 Est. Cost $21.31 Unrealized
INTERCEPT PHARMACEUTICALS IN 0.1%
Value ($000) $3,610 Shares 54,400 Est. Cost $78.51 Unrealized
RESTORBIO INC 0.1%
Value ($000) $3,536 Shares 400,000 Est. Cost $11.32 Unrealized
ARVN ARVINAS INC 0.1%
Value ($000) $3,233 Shares 150,000 Est. Cost $16.46 Unrealized +49.1%
ACRS ACLARIS THERAPEUTICS INC 0.1%
Value ($000) $3,213 Shares 2,974,754 Est. Cost $9.19 Unrealized -84.6%
TXG 10X GENOMICS INC 0.1%
Value ($000) $3,200 Shares 63,500 Est. Cost $55.34 Unrealized 0.0%
FIVE PRIME THERAPEUTICS INC 0.1%
Value ($000) $3,003 Shares 775,000 Est. Cost $16.45 Unrealized
CORREVIO PHARMA CORP 0.1%
Value ($000) $2,400 Shares 1,200,000 Est. Cost $3.78 Unrealized
MYOVANT SCIENCES LTD 0.1%
Value ($000) $2,340 Shares 450,000 Est. Cost $14.19 Unrealized
MERSANA THERAPEUTICS INC 0.1%
Value ($000) $2,212 Shares 1,400,000 Est. Cost $11.48 Unrealized
PARATEK PHARMACEUTICALS INC 0.1%
Value ($000) $1,944 Shares 450,000 Est. Cost $15.77 Unrealized
THERAVANCE BIOPHARMA INC 0.1%
Value ($000) $1,376 Shares 1,500,000 Est. Cost $1.14 Unrealized
NEUROCRINE BIOSCIENCES INC 0.1%
Value ($000) $1,372 Shares 1,000,000 Est. Cost $1.45 Unrealized
RADIUS HEALTH INC 0.1%
Value ($000) $1,367 Shares 1,500,000 Est. Cost $1.01 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.1%
Value ($000) $1,321 Shares 875,000 Est. Cost $13.74 Unrealized
CRVS CORVUS PHARMACEUTICALS INC 0.0%
Value ($000) $1,204 Shares 400,000 Est. Cost $13.05 Unrealized -67.8%
CLOVIS ONCOLOGY INC 0.0%
Value ($000) $1,006 Shares 256,000 Est. Cost $53.62 Unrealized
PACIRA BIOSCIENCES 0.0%
Value ($000) $988 Shares 1,000,000 Est. Cost $0.91 Unrealized
DERMIRA INC 0.0%
Value ($000) $844 Shares 1,000,000 Est. Cost $0.83 Unrealized
NVAX NOVAVAX INC 0.0%
Value ($000) $816 Shares 162,500 Est. Cost $7.87 Unrealized -30.4%
KLDO KALEIDO BIOSCIENCES INC 0.0%
Value ($000) $753 Shares 100,050 Est. Cost $13.76 Unrealized -36.9%
PROTEOSTASIS THERAPEUTICS IN 0.0%
Value ($000) $338 Shares 400,000 Est. Cost $3.24 Unrealized
COVETRUS INC 0.0%
Value ($000) $246 Shares 20,683 Est. Cost $31.85 Unrealized