Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q3 2020 (← Previous) (Next →)

Filing Date: Nov 16, 2020

Total Value: $3.941B (98.8% shares, 1.2% debt)

Holdings (148)

IRTC IRHYTHM TECHNOLOGIES INC 3.8%
Value $149M Shares 625,000 Est. Cost $54.86 Unrealized +222.5%
NBIX NEUROCRINE BIOSCIENCES INC 3.6%
Value $141M Shares 1,465,500 Est. Cost $71.31 Unrealized +62.2%
IMMUNOMEDICS INC 3.4%
Value $135M Shares 1,587,500 Est. Cost $24.09 Unrealized
UNH UNITEDHEALTH GROUP INC 3.2%
Value $126M Shares 405,000 Est. Cost $189.39 Unrealized +48.5%
HUM HUMANA INC 2.5%
Value $100M Shares 242,500 Est. Cost $325.63 Unrealized +17.6%
BLUEPRINT MEDICINES CORP 2.2%
Value $88.32M Shares 952,773 Est. Cost $69.72 Unrealized
ISRG INTUITIVE SURGICAL INC 2.2%
Value $85.14M Shares 120,000 Est. Cost $105.96 Unrealized +111.9%
CNC CENTENE CORP DEL 2.0%
Value $77M Shares 1,320,000 Est. Cost $60.49 Unrealized +2.7%
ARGX ARGENX SE 1.9%
Value $75.47M Shares 287,500 Est. Cost $120.69 Unrealized
PODD INSULET CORP 1.9%
Value $74.64M Shares 315,500 Est. Cost $120.20 Unrealized +75.2%
ZLAB ZAI LAB LTD 1.7%
Value $68.49M Shares 823,527 Est. Cost $37.72 Unrealized
INVITAE CORP 1.7%
Value $65.8M Shares 1,517,962 Est. Cost $15.24 Unrealized
ACAD ACADIA PHARMACEUTICALS INC 1.6%
Value $64.89M Shares 1,573,200 Est. Cost $41.40 Unrealized +4.3%
NVAX NOVAVAX INC 1.6%
Value $63.46M Shares 585,705 Est. Cost $40.40 Unrealized +201.5%
HCA HCA HEALTHCARE INC 1.6%
Value $62.34M Shares 500,000 Est. Cost $96.26 Unrealized +22.9%
ONC BEIGENE LTD 1.6%
Value $61.59M Shares 215,000 Est. Cost $33.43 Unrealized
PCRX PACIRA BIOSCIENCES 1.5%
Value $60.42M Shares 1,005,000 Est. Cost $48.15 Unrealized +20.7%
MIRATI THERAPEUTICS INC 1.5%
Value $57.91M Shares 348,761 Est. Cost $63.35 Unrealized
FRPT FRESHPET INC 1.4%
Value $56.55M Shares 506,500 Est. Cost $50.14 Unrealized +102.9%
AGIO AGIOS PHARMACEUTICALS INC 1.4%
Value $55.35M Shares 1,581,509 Est. Cost $44.66 Unrealized -1.9%
NEVRO CORP 1.4%
Value $53.77M Shares 386,000 Est. Cost $83.94 Unrealized
BAX BAXTER INTL INC 1.3%
Value $51.87M Shares 645,000 Est. Cost $64.04 Unrealized +17.4%
HORIZON THERAPEUTICS PUB L 1.3%
Value $50.49M Shares 650,000 Est. Cost $77.68 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 1.3%
Value $49.48M Shares 339,814 Est. Cost $85.91 Unrealized +65.4%
IDXX IDEXX LABS INC 1.2%
Value $49.14M Shares 125,000 Est. Cost $200.51 Unrealized +84.4%
BIIB BIOGEN INC 1.2%
Value $48.94M Shares 172,500 Est. Cost $303.47 Unrealized -8.1%
SEATTLE GENETICS INC 1.2%
Value $48.92M Shares 250,000 Est. Cost $62.91 Unrealized
SRPT SAREPTA THERAPEUTICS INC 1.2%
Value $48.52M Shares 345,500 Est. Cost $54.43 Unrealized +179.2%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.2%
Value $47.41M Shares 576,841 Est. Cost $55.19 Unrealized +50.2%
ALGN ALIGN TECHNOLOGY INC 1.2%
Value $46.81M Shares 143,000 Est. Cost $206.38 Unrealized +47.9%
EW EDWARDS LIFESCIENCES CORP 1.2%
Value $46.45M Shares 582,000 Est. Cost $59.31 Unrealized +31.5%
EHC ENCOMPASS HEALTH CORP 1.2%
Value $45.36M Shares 698,000 Est. Cost $45.98 Unrealized +4.9%
TFX TELEFLEX INCORPORATED 1.1%
Value $44.26M Shares 130,000 Est. Cost $242.14 Unrealized +47.9%
EXAS EXACT SCIENCES CORP 1.1%
Value $43.23M Shares 424,000 Est. Cost $31.16 Unrealized +177.1%
BSX BOSTON SCIENTIFIC CORP 1.1%
Value $42.03M Shares 1,100,000 Est. Cost $35.85 Unrealized +7.5%
ASND ASCENDIS PHARMA A/S 0.9%
Value $36.03M Shares 233,500 Est. Cost $29.70 Unrealized
MERSANA THERAPEUTICS INC 0.9%
Value $35.11M Shares 1,885,428 Est. Cost $15.58 Unrealized
PEN PENUMBRA INC 0.8%
Value $30.91M Shares 159,000 Est. Cost $55.16 Unrealized +281.3%
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.8%
Value $30.88M Shares 635,000 Est. Cost $43.72 Unrealized -3.9%
CHRS COHERUS BIOSCIENCES INC 0.8%
Value $30.54M Shares 1,665,449 Est. Cost $18.69 Unrealized -0.5%
INSP INSPIRE MED SYS INC 0.8%
Value $30.46M Shares 236,000 Est. Cost $74.71 Unrealized +47.5%
EPIZYME INC 0.8%
Value $30.44M Shares 2,551,659 Est. Cost $14.49 Unrealized
MDGL MADRIGAL PHARMACEUTICALS INC 0.8%
Value $30.19M Shares 254,268 Est. Cost $40.26 Unrealized +169.7%
COVETRUS INC 0.8%
Value $29.89M Shares 1,225,000 Est. Cost $20.19 Unrealized
INCY INCYTE CORP 0.7%
Value $26.92M Shares 300,000 Est. Cost $72.84 Unrealized +32.4%
ARDX ARDELYX INC 0.7%
Value $26.65M Shares 5,076,867 Est. Cost $7.07 Unrealized -15.0%
BMRN BIOMARIN PHARMACEUTICAL INC 0.7%
Value $26.63M Shares 350,000 Est. Cost $85.83 Unrealized +17.9%
IMVT IMMUNOVANT INC 0.7%
Value $26.13M Shares 742,449 Est. Cost $22.66 Unrealized +32.7%
ALEXION PHARMACEUTICALS INC 0.7%
Value $25.75M Shares 225,000 Est. Cost $112.64 Unrealized
HCAT HEALTH CATALYST INC 0.7%
Value $25.73M Shares 703,000 Est. Cost $33.59 Unrealized +1.1%
PHR PHREESIA INC 0.7%
Value $25.7M Shares 800,000 Est. Cost $27.29 Unrealized +9.1%
MIRM MIRUM PHARMACEUTICALS INC 0.6%
Value $25.58M Shares 1,327,614 Est. Cost $11.97 Unrealized +79.3%
BFAM BRIGHT HORIZONS FAM SOL IN D 0.6%
Value $25.16M Shares 165,500 Est. Cost $118.86 Unrealized +5.8%
GLPG GALAPAGOS NV 0.6%
Value $24.83M Shares 175,000 Est. Cost $55.87 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.6%
Value $24.46M Shares 1,175,000 Est. Cost $15.97 Unrealized +13.0%
ASSEMBLY BIOSCIENCES INC 0.6%
Value $24.07M Shares 1,463,915 Est. Cost $14.17 Unrealized
INOZYME PHARMA INC 0.6%
Value $23.13M Shares 879,954 Est. Cost $26.29 Unrealized
KYMR KYMERA THERAPEUTICS INC 0.6%
Value $22.94M Shares 709,965 Est. Cost $30.53 Unrealized 0.0%
ACHC ACADIA HEALTHCARE COMPANY IN 0.6%
Value $22.41M Shares 760,000 Est. Cost $44.80 Unrealized -35.2%
GH GUARDANT HEALTH INC 0.5%
Value $21.24M Shares 190,000 Est. Cost $38.92 Unrealized +135.0%
MOMENTA PHARMACEUTICALS INC 0.5%
Value $20.99M Shares 400,000 Est. Cost $19.06 Unrealized
APPLIED THERAPEUTICS INC 0.5%
Value $20.59M Shares 991,573 Est. Cost $33.09 Unrealized
RPRX ROYALTY PHARMA PLC 0.5%
Value $20.4M Shares 485,000 Est. Cost $49.50 Unrealized -13.3%
ATHIRA PHARMA INC 0.5%
Value $20.36M Shares 1,102,702 Est. Cost $18.46 Unrealized
ALLAKOS INC 0.5%
Value $19.68M Shares 241,582 Est. Cost $45.82 Unrealized
NVCR NOVOCURE LTD 0.5%
Value $19.48M Shares 175,000 Est. Cost $37.58 Unrealized +112.8%
PPD INC 0.5%
Value $19.42M Shares 525,000 Est. Cost $19.82 Unrealized
RETROPHIN INC 0.5%
Value $18.91M Shares 1,024,261 Est. Cost $21.78 Unrealized
KARUNA THERAPEUTICS INC 0.5%
Value $18.87M Shares 244,106 Est. Cost $38.33 Unrealized
HQY HEALTHEQUITY INC 0.5%
Value $18.5M Shares 360,100 Est. Cost $62.37 Unrealized -11.9%
CGEN COMPUGEN LTD 0.5%
Value $18.41M Shares 1,132,775 Est. Cost $5.69 Unrealized +187.8%
AMARIN CORP PLC 0.5%
Value $18.31M Shares 4,350,000 Est. Cost $4.95 Unrealized
TGTX TG THERAPEUTICS INC 0.5%
Value $18.27M Shares 682,926 Est. Cost $16.11 Unrealized +42.9%
CYTOKINETICS INC 0.5%
Value $17.8M Shares 8,000,000 Est. Cost $1.32 Unrealized
RLAY RELAY THERAPEUTICS INC 0.4%
Value $17.62M Shares 413,674 Est. Cost $38.13 Unrealized 0.0%
SHOCKWAVE MED INC 0.4%
Value $16.68M Shares 220,000 Est. Cost $50.28 Unrealized
NKTX NKARTA INC 0.4%
Value $16.26M Shares 540,873 Est. Cost $29.47 Unrealized 0.0%
GOSSAMER BIO INC 0.4%
Value $16.05M Shares 15,573,000 Est. Cost $1.01 Unrealized
OAK STR HEALTH INC 0.4%
Value $16.03M Shares 300,000 Est. Cost $53.44 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.4%
Value $15.86M Shares 1,986,910 Est. Cost $10.05 Unrealized
QURE UNIQURE NV 0.4%
Value $15.23M Shares 413,433 Est. Cost $56.07 Unrealized -26.9%
FOLD AMICUS THERAPEUTICS INC 0.4%
Value $14.46M Shares 1,023,821 Est. Cost $11.49 Unrealized +26.9%
CNMD CONMED CORP 0.4%
Value $14.16M Shares 180,000 Est. Cost $87.51 Unrealized -11.0%
SPRO SPERO THERAPEUTICS INC 0.4%
Value $13.8M Shares 1,236,256 Est. Cost $11.82 Unrealized +0.1%
AKERO THERAPEUTICS INC 0.3%
Value $13.03M Shares 423,040 Est. Cost $24.35 Unrealized
FIBROGEN INC 0.3%
Value $12.72M Shares 309,287 Est. Cost $30.22 Unrealized
ACCOLADE INC 0.3%
Value $12.63M Shares 325,000 Est. Cost $38.87 Unrealized
APREA THERAPEUTICS INC 0.3%
Value $12.47M Shares 518,290 Est. Cost $45.64 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.3%
Value $12.18M Shares 824,018 Est. Cost $21.11 Unrealized -11.3%
GW PHARMACEUTICALS PLC 0.3%
Value $11.6M Shares 119,188 Est. Cost $113.94 Unrealized
FUSION PHARMACEUTICALS INC 0.3%
Value $11.39M Shares 947,541 Est. Cost $17.41 Unrealized
RIGEL PHARMACEUTICALS INC 0.3%
Value $11.38M Shares 4,742,891 Est. Cost $2.87 Unrealized
AUPH AURINIA PHARMACEUTICALS INC 0.3%
Value $11.38M Shares 772,569 Est. Cost $14.49 Unrealized 0.0%
ARVN ARVINAS INC 0.3%
Value $11.37M Shares 481,468 Est. Cost $31.93 Unrealized -9.2%
OSW ONESPAWORLD HOLDINGS LIMITED 0.3%
Value $11.31M Shares 1,740,000 Est. Cost $11.16 Unrealized -46.3%
AEGLEA BIOTHERAPEUTICS INC 0.3%
Value $11.28M Shares 1,590,528 Est. Cost $7.80 Unrealized
TRILLIUM THERAPEUTICS INC 0.3%
Value $10.96M Shares 770,918 Est. Cost $4.22 Unrealized
PRLD PRELUDE THERAPEUTICS INC 0.3%
Value $10.86M Shares 360,263 Est. Cost $28.24 Unrealized 0.0%
TARA PROTARA THERAPEUTICS INC 0.3%
Value $10.83M Shares 643,622 Est. Cost $23.19 Unrealized 0.0%
CONSTELLATION PHARMCETICLS I 0.3%
Value $10.45M Shares 515,680 Est. Cost $37.77 Unrealized
PRTA PROTHENA CORP PLC 0.3%
Value $10.24M Shares 1,025,207 Est. Cost $11.63 Unrealized +3.4%
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value $10.06M Shares 464,086 Est. Cost $22.89 Unrealized +0.2%
TXG 10X GENOMICS INC 0.2%
Value $9.476M Shares 76,000 Est. Cost $56.95 Unrealized +84.3%
RADIUS HEALTH INC 0.2%
Value $9.233M Shares 814,208 Est. Cost $36.38 Unrealized
CHIASMA INC 0.2%
Value $9.22M Shares 2,144,225 Est. Cost $7.99 Unrealized
PARATEK PHARMACEUTICALS INC 0.2%
Value $9.053M Shares 1,673,414 Est. Cost $6.16 Unrealized
NRIX NURIX THERAPEUTICS INC 0.2%
Value $8.99M Shares 257,514 Est. Cost $25.20 Unrealized 0.0%
TRANSLATE BIO INC 0.2%
Value $8.746M Shares 642,646 Est. Cost $12.61 Unrealized
GAMIDA CELL LTD 0.2%
Value $8.369M Shares 2,016,656 Est. Cost $4.82 Unrealized
JAZZ JAZZ PHARMACEUTICALS PLC 0.2%
Value $8.199M Shares 57,500 Est. Cost $123.97 Unrealized 0.0%
INTERSECT ENT INC 0.2%
Value $8.155M Shares 500,000 Est. Cost $24.99 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.2%
Value $7.835M Shares 28,500 Est. Cost $96.51 Unrealized +170.6%
LEGN LEGEND BIOTECH CORP 0.2%
Value $7.784M Shares 252,138 Est. Cost $40.42 Unrealized
ZOGENIX INC 0.2%
Value $7.459M Shares 415,982 Est. Cost $33.03 Unrealized
IMARA INC 0.2%
Value $7.301M Shares 358,943 Est. Cost $16.03 Unrealized
MYOVANT SCIENCES LTD 0.2%
Value $7.204M Shares 512,711 Est. Cost $14.43 Unrealized
ANNX ANNEXON INC 0.2%
Value $7.159M Shares 236,811 Est. Cost $23.46 Unrealized 0.0%
DYNAVAX TECHNOLOGIES CORP 0.2%
Value $7.119M Shares 1,647,920 Est. Cost $6.77 Unrealized
MGNX MACROGENICS INC 0.2%
Value $6.616M Shares 262,641 Est. Cost $21.59 Unrealized +26.5%
ODONATE THERAPEUTICS INC 0.2%
Value $6.573M Shares 489,432 Est. Cost $23.32 Unrealized
INSMED INC 0.2%
Value $6.541M Shares 6,000,000 Est. Cost $0.89 Unrealized
ATRECA INC 0.2%
Value $6.298M Shares 450,830 Est. Cost $13.97 Unrealized
NGM BIOPHARMACEUTICALS INC 0.1%
Value $5.735M Shares 360,454 Est. Cost $14.73 Unrealized
XENE XENON PHARMACEUTICALS INC 0.1%
Value $5.709M Shares 515,711 Est. Cost $14.20 Unrealized -17.1%
ITEOS THERAPEUTICS INC 0.1%
Value $5.592M Shares 226,681 Est. Cost $24.67 Unrealized
GDRX GOODRX HLDGS INC 0.1%
Value $5.56M Shares 100,000 Est. Cost $52.94 Unrealized 0.0%
ACELRX PHARMACEUTICALS INC 0.1%
Value $5.358M Shares 3,773,585 Est. Cost $1.42 Unrealized
ACRS ACLARIS THERAPEUTICS INC 0.1%
Value $5.336M Shares 2,076,307 Est. Cost $7.58 Unrealized -70.5%
GRTX GALERA THERAPEUTICS INC 0.1%
Value $5.131M Shares 567,552 Est. Cost $12.01 Unrealized -34.0%
PANACEA ACQUISITION CORP 0.1%
Value $4.825M Shares 402,088 Est. Cost $12.00 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.1%
Value $4.609M Shares 1,313,174 Est. Cost $6.05 Unrealized
ANAB ANAPTYSBIO INC 0.1%
Value $4.559M Shares 309,113 Est. Cost $30.43 Unrealized -40.7%
CYTK CYTOKINETICS INC 0.1%
Value $4.471M Shares 206,495 Est. Cost $21.65 Unrealized +8.0%
OBSEVA SA 0.1%
Value $3.558M Shares 1,434,652 Est. Cost $7.24 Unrealized
POSEIDA THERAPEUTICS INC 0.1%
Value $3.26M Shares 367,499 Est. Cost $8.87 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.1%
Value $3.203M Shares 904,800 Est. Cost $9.99 Unrealized -65.3%
RETROPHIN INC 0.1%
Value $2.779M Shares 3,250,000 Est. Cost $0.79 Unrealized
PASSAGE BIO INC 0.1%
Value $2.701M Shares 206,036 Est. Cost $15.72 Unrealized
VRTX VERTEX PHARMACEUTICALS INC 0.1%
Value $2.449M Shares 9,000 Est. Cost $117.87 Unrealized +134.0%
IGM BIOSCIENCES INC 0.0%
Value $1.459M Shares 19,762 Est. Cost $73.00 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value $1.385M Shares 1,000,000 Est. Cost $1.45 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value $1.32M Shares 1,500,000 Est. Cost $1.14 Unrealized
FIVE PRIME THERAPEUTICS INC 0.0%
Value $1.276M Shares 271,585 Est. Cost $16.28 Unrealized
RADIUS HEALTH INC 0.0%
Value $1.244M Shares 1,500,000 Est. Cost $1.01 Unrealized
PACIRA BIOSCIENCES 0.0%
Value $1.151M Shares 1,000,000 Est. Cost $0.91 Unrealized
NEVRO CORP 0.0%
Value $775K Shares 500,000 Est. Cost $1.37 Unrealized
NABRIVA THERAPEUTICS PLC 0.0%
Value $569K Shares 1,067,664 Est. Cost $4.22 Unrealized
BRISTOL-MYERS SQUIBB CO 0.0%
Value $417K Shares 185,150 Est. Cost $3.01 Unrealized