Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q3 2019 (← Previous) (Next →)

Filing Date: Nov 14, 2019

Total Value: $2.51B (99.1% shares, 0.9% debt)

Holdings (138)

UNH UNITEDHEALTH GROUP INC 5.1%
Value $128M Shares 591,000 Est. Cost $164.29 Unrealized +32.2%
NBIX NEUROCRINE BIOSCIENCES INC 4.4%
Value $111M Shares 1,232,500 Est. Cost $64.43 Unrealized +45.0%
WELLCARE HEALTH PLANS INC 3.3%
Value $83.06M Shares 320,500 Est. Cost $187.33 Unrealized
ISRG INTUITIVE SURGICAL INC 3.3%
Value $82.34M Shares 152,500 Est. Cost $105.96 Unrealized +63.2%
AMARIN CORP PLC 2.8%
Value $70.49M Shares 4,650,000 Est. Cost $4.95 Unrealized
HCA HCA HEALTHCARE INC 2.2%
Value $56.3M Shares 467,500 Est. Cost $93.02 Unrealized +31.6%
EHC ENCOMPASS HEALTH CORP 2.1%
Value $51.57M Shares 815,000 Est. Cost $45.89 Unrealized +1.2%
SPARK THERAPEUTICS INC 2.0%
Value $49.01M Shares 505,371 Est. Cost $58.20 Unrealized
TFX TELEFLEX INC 1.8%
Value $44.17M Shares 130,000 Est. Cost $242.14 Unrealized +38.6%
PCRX PACIRA BIOSCIENCES 1.7%
Value $43.78M Shares 1,150,000 Est. Cost $47.44 Unrealized -15.9%
PODD INSULET CORP 1.7%
Value $42.96M Shares 260,500 Est. Cost $104.86 Unrealized +34.0%
IRTC IRHYTHM TECHNOLOGIES INC 1.6%
Value $41.13M Shares 555,000 Est. Cost $52.18 Unrealized +48.5%
EW EDWARDS LIFESCIENCES CORP 1.6%
Value $40.35M Shares 183,500 Est. Cost $33.73 Unrealized +108.3%
ACHC ACADIA HEALTHCARE COMPANY IN 1.6%
Value $40.09M Shares 1,290,000 Est. Cost $44.80 Unrealized -32.0%
MEDICINES CO 1.6%
Value $40M Shares 800,000 Est. Cost $32.66 Unrealized
ABBV ABBVIE INC 1.6%
Value $39.75M Shares 525,000 Est. Cost $54.53 Unrealized -3.6%
BSX BOSTON SCIENTIFIC CORP 1.6%
Value $39.47M Shares 970,000 Est. Cost $34.42 Unrealized +23.1%
EXAS EXACT SCIENCES CORP 1.6%
Value $39.02M Shares 431,750 Est. Cost $31.16 Unrealized +265.6%
SYK STRYKER CORP 1.5%
Value $38.72M Shares 179,000 Est. Cost $141.99 Unrealized +41.0%
CHRS COHERUS BIOSCIENCES INC 1.5%
Value $38.09M Shares 1,880,000 Est. Cost $18.77 Unrealized +6.4%
VRTX VERTEX PHARMACEUTICALS INC 1.4%
Value $34.39M Shares 203,000 Est. Cost $117.87 Unrealized +50.1%
BAX BAXTER INTL INC 1.3%
Value $33.68M Shares 385,000 Est. Cost $56.68 Unrealized +33.2%
RADIUS HEALTH INC 1.3%
Value $33.48M Shares 1,300,000 Est. Cost $37.04 Unrealized
CI CIGNA CORP NEW 1.3%
Value $32.92M Shares 216,900 Est. Cost $154.04 Unrealized -3.4%
IDXX IDEXX LABS INC 1.3%
Value $32.69M Shares 120,200 Est. Cost $198.10 Unrealized +40.5%
PEN PENUMBRA INC 1.3%
Value $32.61M Shares 242,500 Est. Cost $55.16 Unrealized +180.4%
PORTOLA PHARMACEUTICALS INC 1.1%
Value $28.16M Shares 1,050,000 Est. Cost $39.21 Unrealized
GLPG GALAPAGOS NV 1.1%
Value $26.72M Shares 175,000 Est. Cost $55.87 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 1.1%
Value $26.58M Shares 330,500 Est. Cost $82.95 Unrealized -4.6%
ONC BEIGENE LTD 1.0%
Value $26.3M Shares 214,800 Est. Cost $33.43 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 1.0%
Value $26.01M Shares 608,000 Est. Cost $57.55 Unrealized -5.6%
SRPT SAREPTA THERAPEUTICS INC 1.0%
Value $25.42M Shares 337,500 Est. Cost $53.33 Unrealized +121.5%
ALDER BIOPHARMACEUTICALS INC 1.0%
Value $24.52M Shares 1,300,000 Est. Cost $13.92 Unrealized
BLUEPRINT MEDICINES CORP 1.0%
Value $24.5M Shares 333,500 Est. Cost $74.65 Unrealized
AMGN AMGEN INC 1.0%
Value $24.38M Shares 126,000 Est. Cost $158.01 Unrealized 0.0%
TMO THERMO FISHER SCIENTIFIC INC 0.9%
Value $23.59M Shares 81,000 Est. Cost $165.72 Unrealized +69.9%
MOH MOLINA HEALTHCARE INC 0.9%
Value $23.54M Shares 214,500 Est. Cost $67.95 Unrealized +90.6%
MDGL MADRIGAL PHARMACEUTICALS INC 0.9%
Value $23.49M Shares 272,400 Est. Cost $39.27 Unrealized +138.9%
INCY INCYTE CORP 0.9%
Value $23.18M Shares 312,300 Est. Cost $68.12 Unrealized +18.7%
ALLAKOS INC 0.9%
Value $22.8M Shares 290,000 Est. Cost $44.99 Unrealized
INVITAE CORP 0.9%
Value $21.68M Shares 1,125,000 Est. Cost $10.13 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.9%
Value $21.63M Shares 152,500 Est. Cost $96.51 Unrealized +40.3%
NEVRO CORP 0.8%
Value $20.85M Shares 242,500 Est. Cost $68.59 Unrealized
ARGX ARGENX SE 0.8%
Value $20.71M Shares 181,700 Est. Cost $83.26 Unrealized
SEATTLE GENETICS INC 0.8%
Value $20.67M Shares 242,000 Est. Cost $59.37 Unrealized
ASND ASCENDIS PHARMA A S 0.8%
Value $20.56M Shares 213,500 Est. Cost $18.03 Unrealized
ALGN ALIGN TECHNOLOGY INC 0.8%
Value $20.06M Shares 110,900 Est. Cost $198.79 Unrealized +4.6%
MIRATI THERAPEUTICS INC 0.8%
Value $20.06M Shares 257,500 Est. Cost $48.93 Unrealized
RA PHARMACEUTICALS INC 0.8%
Value $19.75M Shares 835,000 Est. Cost $15.03 Unrealized
EPIZYME INC 0.8%
Value $19.08M Shares 1,850,100 Est. Cost $13.92 Unrealized
ZLAB ZAI LAB LTD 0.7%
Value $18.6M Shares 575,000 Est. Cost $28.69 Unrealized
CELGENE CORP 0.7%
Value $18.39M Shares 185,150 Est. Cost $112.23 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.7%
Value $18.11M Shares 1,577,893 Est. Cost $15.97 Unrealized -28.5%
FRPT FRESHPET INC 0.7%
Value $17.68M Shares 355,250 Est. Cost $38.49 Unrealized +18.7%
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.7%
Value $16.84M Shares 545,000 Est. Cost $44.30 Unrealized -7.9%
INSM INSMED INC 0.6%
Value $15.7M Shares 890,000 Est. Cost $20.30 Unrealized -4.9%
INTERSECT ENT INC 0.6%
Value $14.84M Shares 872,500 Est. Cost $24.99 Unrealized
ARDX ARDELYX INC 0.6%
Value $14.36M Shares 3,055,261 Est. Cost $7.68 Unrealized -54.8%
BIOHAVEN PHARMACTL HLDG CO L 0.6%
Value $14.33M Shares 343,500 Est. Cost $31.69 Unrealized
ACHILLION PHARMACEUTICALS IN 0.5%
Value $13.77M Shares 3,825,000 Est. Cost $5.66 Unrealized
SAGE THERAPEUTICS INC 0.5%
Value $12.98M Shares 92,500 Est. Cost $125.91 Unrealized
NVCR NOVOCURE LTD 0.5%
Value $12.9M Shares 172,500 Est. Cost $36.98 Unrealized +116.2%
GLOBAL BLOOD THERAPEUTICS IN 0.5%
Value $12.86M Shares 265,000 Est. Cost $38.46 Unrealized
ASSEMBLY BIOSCIENCES INC 0.5%
Value $12.78M Shares 1,300,000 Est. Cost $13.20 Unrealized
GH GUARDANT HEALTH INC 0.5%
Value $12.13M Shares 190,000 Est. Cost $38.92 Unrealized +126.3%
IMMUNOMEDICS INC 0.5%
Value $11.87M Shares 895,000 Est. Cost $17.07 Unrealized
AUDENTES THERAPEUTICS INC 0.5%
Value $11.52M Shares 410,000 Est. Cost $20.08 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 0.5%
Value $11.42M Shares 352,500 Est. Cost $48.82 Unrealized -15.2%
OBSEVA SA 0.5%
Value $11.33M Shares 1,360,000 Est. Cost $11.02 Unrealized
FIBROGEN INC 0.5%
Value $11.32M Shares 306,000 Est. Cost $29.90 Unrealized
ODONATE THERAPEUTICS INC 0.4%
Value $11.19M Shares 430,000 Est. Cost $24.20 Unrealized
RETROPHIN INC 0.4%
Value $11.01M Shares 950,000 Est. Cost $22.85 Unrealized
GW PHARMACEUTICALS PLC 0.4%
Value $10.93M Shares 95,000 Est. Cost $110.88 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.4%
Value $10.71M Shares 550,000 Est. Cost $20.11 Unrealized +0.5%
ABT ABBOTT LABS 0.4%
Value $10.25M Shares 122,500 Est. Cost $76.09 Unrealized 0.0%
TRANSLATE BIO INC 0.4%
Value $10.16M Shares 1,025,000 Est. Cost $12.61 Unrealized
ZOGENIX INC 0.4%
Value $10.01M Shares 250,000 Est. Cost $38.39 Unrealized
CNC CENTENE CORP DEL 0.4%
Value $9.941M Shares 229,800 Est. Cost $48.70 Unrealized 0.0%
BMRN BIOMARIN PHARMACEUTICAL INC 0.4%
Value $9.605M Shares 142,500 Est. Cost $99.12 Unrealized -22.3%
PHR PHREESIA INC 0.3%
Value $8.751M Shares 361,000 Est. Cost $26.37 Unrealized 0.0%
DECIPHERA PHARMACEUTICALS IN 0.3%
Value $8.485M Shares 250,000 Est. Cost $33.94 Unrealized
ANAB ANAPTYSBIO INC 0.3%
Value $8.398M Shares 240,000 Est. Cost $49.70 Unrealized -4.3%
FOLD AMICUS THERAPEUTICS INC 0.3%
Value $8.02M Shares 1,000,000 Est. Cost $11.48 Unrealized -5.4%
MIRM MIRUM PHARMACEUTICALS INC 0.3%
Value $7.948M Shares 790,048 Est. Cost $12.27 Unrealized 0.0%
RIGEL PHARMACEUTICALS INC 0.3%
Value $7.854M Shares 4,200,000 Est. Cost $3.20 Unrealized
HOMOLOGY MEDICINES INC 0.3%
Value $7.693M Shares 425,000 Est. Cost $18.81 Unrealized
QURE UNIQURE NV 0.3%
Value $7.656M Shares 194,500 Est. Cost $57.69 Unrealized 0.0%
JNJ JOHNSON & JOHNSON 0.3%
Value $7.245M Shares 56,000 Est. Cost $110.00 Unrealized 0.0%
ACAD ACADIA PHARMACEUTICALS INC 0.3%
Value $6.73M Shares 187,000 Est. Cost $30.32 Unrealized 0.0%
DYNAVAX TECHNOLOGIES CORP 0.3%
Value $6.614M Shares 1,850,000 Est. Cost $6.66 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value $6.585M Shares 305,000 Est. Cost $25.64 Unrealized -16.3%
ELV ANTHEM INC 0.3%
Value $6.483M Shares 27,000 Est. Cost $260.50 Unrealized -3.5%
PBYI PUMA BIOTECHNOLOGY INC 0.3%
Value $6.323M Shares 587,400 Est. Cost $62.09 Unrealized -82.6%
AEGLEA BIOTHERAPEUTICS INC 0.2%
Value $6.152M Shares 800,000 Est. Cost $6.36 Unrealized
MEDICINES CO 0.2%
Value $6.05M Shares 5,000,000 Est. Cost $1.05 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.2%
Value $5.908M Shares 1,416,900 Est. Cost $6.46 Unrealized
KARUNA THERAPEUTICS INC 0.2%
Value $5.882M Shares 360,400 Est. Cost $20.02 Unrealized
SPRO SPERO THERAPEUTICS INC 0.2%
Value $5.565M Shares 525,000 Est. Cost $12.27 Unrealized -14.2%
RTI SURGICAL HOLDINGS INC 0.2%
Value $5.558M Shares 1,950,000 Est. Cost $4.35 Unrealized
AXONICS MODULATION TECH INC 0.2%
Value $5.451M Shares 202,500 Est. Cost $15.11 Unrealized
MOMENTA PHARMACEUTICALS INC 0.2%
Value $5.184M Shares 400,000 Est. Cost $19.06 Unrealized
AKERO THERAPEUTICS INC 0.2%
Value $5.119M Shares 225,000 Est. Cost $19.15 Unrealized
INSMED INC 0.2%
Value $5.031M Shares 6,000,000 Est. Cost $0.89 Unrealized
DERMIRA INC 0.2%
Value $4.952M Shares 775,000 Est. Cost $16.41 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value $4.863M Shares 351,100 Est. Cost $14.64 Unrealized
CGEN COMPUGEN LTD 0.2%
Value $4.653M Shares 1,100,000 Est. Cost $5.48 Unrealized -31.7%
CYMABAY THERAPEUTICS INC 0.2%
Value $4.608M Shares 900,000 Est. Cost $9.33 Unrealized
NABRIVA THERAPEUTICS PLC 0.2%
Value $4.6M Shares 2,300,000 Est. Cost $4.28 Unrealized
MEDICINES CO 0.2%
Value $4.521M Shares 3,000,000 Est. Cost $1.14 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.2%
Value $4.477M Shares 925,000 Est. Cost $9.99 Unrealized -47.5%
CHIASMA INC 0.2%
Value $4.455M Shares 900,000 Est. Cost $12.98 Unrealized
GAMIDA CELL LTD 0.2%
Value $4.33M Shares 1,000,000 Est. Cost $5.08 Unrealized
BLUEBIRD BIO INC 0.2%
Value $4.316M Shares 47,000 Est. Cost $127.01 Unrealized
HCAT HEALTH CATALYST INC 0.2%
Value $3.955M Shares 125,000 Est. Cost $39.36 Unrealized 0.0%
MGNX MACROGENICS INC 0.2%
Value $3.828M Shares 300,000 Est. Cost $20.97 Unrealized -31.3%
LA JOLLA PHARMACEUTICAL CO 0.1%
Value $3.74M Shares 425,000 Est. Cost $21.31 Unrealized
INTERCEPT PHARMACEUTICALS IN 0.1%
Value $3.61M Shares 54,400 Est. Cost $78.51 Unrealized
RESTORBIO INC 0.1%
Value $3.536M Shares 400,000 Est. Cost $11.32 Unrealized
ARVN ARVINAS INC 0.1%
Value $3.233M Shares 150,000 Est. Cost $16.46 Unrealized +49.1%
ACRS ACLARIS THERAPEUTICS INC 0.1%
Value $3.213M Shares 2,974,754 Est. Cost $9.19 Unrealized -84.6%
TXG 10X GENOMICS INC 0.1%
Value $3.2M Shares 63,500 Est. Cost $55.34 Unrealized 0.0%
FIVE PRIME THERAPEUTICS INC 0.1%
Value $3.003M Shares 775,000 Est. Cost $16.45 Unrealized
CORREVIO PHARMA CORP 0.1%
Value $2.4M Shares 1,200,000 Est. Cost $3.78 Unrealized
MYOVANT SCIENCES LTD 0.1%
Value $2.34M Shares 450,000 Est. Cost $14.19 Unrealized
MERSANA THERAPEUTICS INC 0.1%
Value $2.212M Shares 1,400,000 Est. Cost $11.48 Unrealized
PARATEK PHARMACEUTICALS INC 0.1%
Value $1.944M Shares 450,000 Est. Cost $15.77 Unrealized
THERAVANCE BIOPHARMA INC 0.1%
Value $1.376M Shares 1,500,000 Est. Cost $1.14 Unrealized
NEUROCRINE BIOSCIENCES INC 0.1%
Value $1.372M Shares 1,000,000 Est. Cost $1.45 Unrealized
RADIUS HEALTH INC 0.1%
Value $1.367M Shares 1,500,000 Est. Cost $1.01 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.1%
Value $1.321M Shares 875,000 Est. Cost $13.74 Unrealized
CRVS CORVUS PHARMACEUTICALS INC 0.0%
Value $1.204M Shares 400,000 Est. Cost $13.05 Unrealized -67.8%
CLOVIS ONCOLOGY INC 0.0%
Value $1.006M Shares 256,000 Est. Cost $53.62 Unrealized
PACIRA BIOSCIENCES 0.0%
Value $988K Shares 1,000,000 Est. Cost $0.91 Unrealized
DERMIRA INC 0.0%
Value $844K Shares 1,000,000 Est. Cost $0.83 Unrealized
NVAX NOVAVAX INC 0.0%
Value $816K Shares 162,500 Est. Cost $7.87 Unrealized -30.4%
KLDO KALEIDO BIOSCIENCES INC 0.0%
Value $753K Shares 100,050 Est. Cost $13.76 Unrealized -36.9%
PROTEOSTASIS THERAPEUTICS IN 0.0%
Value $338K Shares 400,000 Est. Cost $3.24 Unrealized
COVETRUS INC 0.0%
Value $246K Shares 20,683 Est. Cost $31.85 Unrealized