Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q4 2020 (← Previous) (Next →)

Filing Date: Feb 16, 2021

Total Value: $4.716B (99.0% shares, 1.0% debt)

Holdings (155)

NBIX NEUROCRINE BIOSCIENCES INC 3.2%
Value $151M Shares 1,575,000 Est. Cost $73.06 Unrealized +32.2%
IRTC IRHYTHM TECHNOLOGIES INC 3.1%
Value $148M Shares 625,000 Est. Cost $54.86 Unrealized +315.4%
UNH UNITEDHEALTH GROUP INC 3.0%
Value $142M Shares 405,000 Est. Cost $189.39 Unrealized +62.7%
HUM HUMANA INC 2.5%
Value $117M Shares 285,000 Est. Cost $336.21 Unrealized +18.0%
ZLAB ZAI LAB LTD 2.5%
Value $116M Shares 854,899 Est. Cost $41.30 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 2.3%
Value $109M Shares 2,523,521 Est. Cost $42.75 Unrealized -7.5%
ISRG INTUITIVE SURGICAL INC 2.1%
Value $98.17M Shares 120,000 Est. Cost $105.96 Unrealized +134.3%
BLUEPRINT MEDICINES CORP 2.0%
Value $94.43M Shares 842,000 Est. Cost $69.72 Unrealized
ALGN ALIGN TECHNOLOGY INC 1.9%
Value $87.37M Shares 163,500 Est. Cost $236.88 Unrealized +89.8%
ACAD ACADIA PHARMACEUTICALS INC 1.8%
Value $86.2M Shares 1,612,500 Est. Cost $41.60 Unrealized +19.3%
ARGX ARGENX SE 1.8%
Value $84.55M Shares 287,500 Est. Cost $120.69 Unrealized
MIRATI THERAPEUTICS INC 1.7%
Value $81.96M Shares 373,152 Est. Cost $73.57 Unrealized
PODD INSULET CORP 1.7%
Value $81.29M Shares 318,000 Est. Cost $120.20 Unrealized +106.4%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.7%
Value $78.42M Shares 566,500 Est. Cost $55.19 Unrealized +114.9%
INVITAE CORP 1.6%
Value $77.44M Shares 1,852,067 Est. Cost $20.03 Unrealized
HCA HCA HEALTHCARE INC 1.6%
Value $74.01M Shares 450,000 Est. Cost $96.26 Unrealized +45.2%
FRPT FRESHPET INC 1.5%
Value $71.92M Shares 506,500 Est. Cost $50.14 Unrealized +157.4%
AVIR ATEA PHARMACEUTICALS INC 1.5%
Value $70.92M Shares 1,697,403 Est. Cost $32.23 Unrealized 0.0%
NEVRO CORP 1.4%
Value $68.38M Shares 395,000 Est. Cost $85.97 Unrealized
EXAS EXACT SCIENCES CORP 1.4%
Value $64.26M Shares 485,000 Est. Cost $42.45 Unrealized +184.9%
ARVN ARVINAS INC 1.3%
Value $63.36M Shares 746,000 Est. Cost $32.84 Unrealized +5.0%
NVAX NOVAVAX INC 1.3%
Value $62.8M Shares 563,205 Est. Cost $40.40 Unrealized +163.1%
IDXX IDEXX LABS INC 1.3%
Value $62.48M Shares 125,000 Est. Cost $200.51 Unrealized +123.1%
PCRX PACIRA BIOSCIENCES INC 1.3%
Value $61.34M Shares 1,025,000 Est. Cost $48.35 Unrealized +21.1%
ONC BEIGENE LTD 1.2%
Value $58.14M Shares 225,000 Est. Cost $43.43 Unrealized
SRPT SAREPTA THERAPEUTICS INC 1.2%
Value $56.05M Shares 328,750 Est. Cost $54.43 Unrealized +172.2%
MERSANA THERAPEUTICS INC 1.2%
Value $54.91M Shares 2,063,667 Est. Cost $16.53 Unrealized
TFX TELEFLEX INCORPORATED 1.1%
Value $53.5M Shares 130,000 Est. Cost $242.14 Unrealized +47.5%
EW EDWARDS LIFESCIENCES CORP 1.1%
Value $53.1M Shares 582,000 Est. Cost $59.31 Unrealized +39.8%
ALEXION PHARMACEUTICALS INC 1.0%
Value $47.93M Shares 306,750 Est. Cost $124.26 Unrealized
ALLAKOS INC 1.0%
Value $47.81M Shares 341,500 Est. Cost $73.38 Unrealized
PHR PHREESIA INC 1.0%
Value $46.12M Shares 850,000 Est. Cost $28.21 Unrealized +52.1%
HORIZON THERAPEUTICS PUB L 1.0%
Value $45.72M Shares 625,000 Est. Cost $77.68 Unrealized
KYMR KYMERA THERAPEUTICS INC 0.9%
Value $44.26M Shares 713,865 Est. Cost $30.53 Unrealized +59.8%
CNC CENTENE CORP DEL 0.9%
Value $43.82M Shares 730,000 Est. Cost $60.49 Unrealized +5.0%
SEAGEN INC 0.9%
Value $43.78M Shares 250,000 Est. Cost $175.14 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 0.9%
Value $43.54M Shares 335,000 Est. Cost $85.91 Unrealized +55.4%
EHC ENCOMPASS HEALTH CORP 0.9%
Value $41.34M Shares 500,000 Est. Cost $45.98 Unrealized +20.9%
IMVT IMMUNOVANT INC 0.9%
Value $41.16M Shares 891,000 Est. Cost $26.59 Unrealized +73.9%
EARGO INC 0.9%
Value $40.34M Shares 900,000 Est. Cost $44.82 Unrealized
INSP INSPIRE MED SYS INC 0.9%
Value $40.13M Shares 213,350 Est. Cost $74.71 Unrealized +118.9%
SPRUCE BIOSCIENCES INC 0.8%
Value $39.65M Shares 1,631,000 Est. Cost $24.31 Unrealized
ASND ASCENDIS PHARMA A/S 0.8%
Value $38.94M Shares 233,500 Est. Cost $29.70 Unrealized
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.8%
Value $37.55M Shares 635,000 Est. Cost $43.72 Unrealized +18.0%
COVETRUS INC 0.8%
Value $36.93M Shares 1,285,000 Est. Cost $20.58 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 0.7%
Value $35.18M Shares 700,000 Est. Cost $44.80 Unrealized -11.0%
LUNG PULMONX CORP 0.7%
Value $34.51M Shares 500,000 Est. Cost $48.97 Unrealized 0.0%
HCAT HEALTH CATALYST INC 0.7%
Value $34.17M Shares 785,000 Est. Cost $33.94 Unrealized +8.7%
ARDX ARDELYX INC 0.7%
Value $33.31M Shares 5,148,112 Est. Cost $7.05 Unrealized -15.8%
NKTX NKARTA INC 0.7%
Value $33.26M Shares 541,000 Est. Cost $29.47 Unrealized +40.9%
BIIB BIOGEN INC 0.7%
Value $31.83M Shares 130,000 Est. Cost $303.47 Unrealized -14.6%
NVCR NOVOCURE LTD 0.6%
Value $30.28M Shares 175,000 Est. Cost $37.58 Unrealized +264.1%
ATHIRA PHARMA INC 0.6%
Value $29.49M Shares 860,902 Est. Cost $18.46 Unrealized
BSX BOSTON SCIENTIFIC CORP 0.6%
Value $28.76M Shares 800,000 Est. Cost $35.85 Unrealized +0.5%
BFAM BRIGHT HORIZONS FAM SOL IN D 0.6%
Value $28.63M Shares 165,500 Est. Cost $118.86 Unrealized +37.7%
MDGL MADRIGAL PHARMACEUTICALS INC 0.6%
Value $28.55M Shares 256,768 Est. Cost $40.26 Unrealized +203.6%
TVTX TRAVERE THERAPEUTICS INC 0.6%
Value $27.83M Shares 1,021,000 Est. Cost $23.35 Unrealized 0.0%
PEN PENUMBRA INC 0.6%
Value $27.82M Shares 159,000 Est. Cost $55.16 Unrealized +297.1%
EPIZYME INC 0.6%
Value $27.73M Shares 2,553,208 Est. Cost $14.49 Unrealized
MIRM MIRUM PHARMACEUTICALS INC 0.6%
Value $26.13M Shares 1,496,525 Est. Cost $12.84 Unrealized +53.1%
INCY INCYTE CORP 0.6%
Value $26.09M Shares 300,000 Est. Cost $72.84 Unrealized +18.8%
PRLD PRELUDE THERAPEUTICS INC 0.5%
Value $25.78M Shares 360,363 Est. Cost $28.24 Unrealized +76.1%
GH GUARDANT HEALTH INC 0.5%
Value $25.78M Shares 200,000 Est. Cost $42.73 Unrealized +169.3%
STTK SHATTUCK LABS INC 0.5%
Value $25.63M Shares 489,000 Est. Cost $32.14 Unrealized 0.0%
TGTX TG THERAPEUTICS INC 0.5%
Value $25.44M Shares 489,000 Est. Cost $16.11 Unrealized +109.8%
KARUNA THERAPEUTICS INC 0.5%
Value $24.78M Shares 243,950 Est. Cost $38.33 Unrealized
BIIB BIOGEN INC 0.5%
Value $24.49M Shares 100,000 Est. Cost $303.47 Unrealized -14.6%
BAX BAXTER INTL INC 0.5%
Value $24.15M Shares 301,000 Est. Cost $64.04 Unrealized +10.9%
RPRX ROYALTY PHARMA PLC 0.5%
Value $24.02M Shares 480,000 Est. Cost $49.50 Unrealized -14.3%
SPRO SPERO THERAPEUTICS INC 0.5%
Value $23.95M Shares 1,235,000 Est. Cost $11.82 Unrealized +31.9%
FOLD AMICUS THERAPEUTICS INC 0.5%
Value $23.76M Shares 1,029,000 Est. Cost $11.49 Unrealized +78.0%
OAK STR HEALTH INC 0.5%
Value $22.93M Shares 375,000 Est. Cost $54.98 Unrealized
SHOCKWAVE MED INC 0.5%
Value $22.82M Shares 220,000 Est. Cost $50.28 Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 0.5%
Value $22.23M Shares 253,500 Est. Cost $85.83 Unrealized -7.6%
COLL COLLEGIUM PHARMACEUTICAL INC 0.5%
Value $22.03M Shares 1,100,000 Est. Cost $15.97 Unrealized +22.3%
RCKT ROCKET PHARMACEUTICALS INC 0.5%
Value $21.96M Shares 400,370 Est. Cost $36.45 Unrealized 0.0%
ACCOLADE INC 0.5%
Value $21.75M Shares 500,000 Est. Cost $40.49 Unrealized
AMARIN CORP PLC 0.4%
Value $20.51M Shares 4,195,000 Est. Cost $4.95 Unrealized
CHRS COHERUS BIOSCIENCES INC 0.4%
Value $20.2M Shares 1,162,500 Est. Cost $18.69 Unrealized -4.8%
ABCAM PLC 0.4%
Value $19.93M Shares 925,000 Est. Cost $21.55 Unrealized
PPD INC 0.4%
Value $17.97M Shares 525,000 Est. Cost $19.82 Unrealized
GAMIDA CELL LTD 0.4%
Value $17.57M Shares 2,094,000 Est. Cost $4.95 Unrealized
ACRS ACLARIS THERAPEUTICS INC 0.4%
Value $17.31M Shares 2,676,100 Est. Cost $6.82 Unrealized -38.2%
CYTOKINETICS INC 0.4%
Value $17.27M Shares 8,000,000 Est. Cost $1.32 Unrealized
INOZYME PHARMA INC 0.4%
Value $17.14M Shares 830,546 Est. Cost $26.29 Unrealized
RLAY RELAY THERAPEUTICS INC 0.4%
Value $17.12M Shares 412,000 Est. Cost $38.13 Unrealized +18.6%
RIGEL PHARMACEUTICALS INC 0.4%
Value $16.6M Shares 4,742,891 Est. Cost $2.87 Unrealized
KURA KURA ONCOLOGY INC 0.4%
Value $16.59M Shares 508,116 Est. Cost $35.14 Unrealized 0.0%
CEREVEL THERAPEUTICS HLDNG I 0.4%
Value $16.56M Shares 999,000 Est. Cost $16.58 Unrealized
GLPG GALAPAGOS NV 0.3%
Value $16.33M Shares 165,000 Est. Cost $55.87 Unrealized
INTERSECT ENT INC 0.3%
Value $16.03M Shares 700,000 Est. Cost $24.39 Unrealized
TARA PROTARA THERAPEUTICS INC 0.3%
Value $15.57M Shares 643,200 Est. Cost $23.19 Unrealized -7.0%
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value $14.58M Shares 490,339 Est. Cost $23.02 Unrealized +10.4%
JAZZ JAZZ PHARMACEUTICALS PLC 0.3%
Value $14.44M Shares 87,500 Est. Cost $132.53 Unrealized +12.4%
MYOVANT SCIENCES LTD 0.3%
Value $14.22M Shares 515,000 Est. Cost $14.43 Unrealized
GOSSAMER BIO INC 0.3%
Value $14.18M Shares 15,573,000 Est. Cost $1.01 Unrealized
APPLIED THERAPEUTICS INC 0.3%
Value $13.99M Shares 635,837 Est. Cost $33.09 Unrealized
GW PHARMACEUTICALS PLC 0.3%
Value $13.76M Shares 119,188 Est. Cost $113.94 Unrealized
CGEN COMPUGEN LTD 0.3%
Value $13.73M Shares 1,133,600 Est. Cost $5.69 Unrealized +142.3%
PRTA PROTHENA CORP PLC 0.3%
Value $13.71M Shares 1,141,100 Est. Cost $11.65 Unrealized +1.5%
AKERO THERAPEUTICS INC 0.3%
Value $13.3M Shares 515,371 Est. Cost $24.61 Unrealized
KINNATE BIOPHARMA INC 0.3%
Value $12.92M Shares 324,686 Est. Cost $39.78 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.3%
Value $12.44M Shares 1,580,000 Est. Cost $7.80 Unrealized
FIVE PRIME THERAPEUTICS INC 0.3%
Value $12.28M Shares 721,633 Est. Cost $16.74 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.3%
Value $12.05M Shares 678,200 Est. Cost $21.11 Unrealized -15.0%
TRANSLATE BIO INC 0.3%
Value $11.86M Shares 643,500 Est. Cost $12.61 Unrealized
FIBROGEN INC 0.2%
Value $11.47M Shares 309,387 Est. Cost $30.22 Unrealized
FUSION PHARMACEUTICALS INC 0.2%
Value $11.14M Shares 948,327 Est. Cost $17.41 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value $10.92M Shares 360,500 Est. Cost $14.73 Unrealized
TXG 10X GENOMICS INC 0.2%
Value $10.76M Shares 76,000 Est. Cost $56.95 Unrealized +154.8%
AUPH AURINIA PHARMACEUTICALS INC 0.2%
Value $10.7M Shares 773,669 Est. Cost $14.49 Unrealized +0.5%
CHINOOK THERAPEUTICS INC 0.2%
Value $10.61M Shares 668,849 Est. Cost $15.86 Unrealized
PARATEK PHARMACEUTICALS INC 0.2%
Value $10.52M Shares 1,680,614 Est. Cost $6.16 Unrealized
CHIASMA INC 0.2%
Value $9.294M Shares 2,136,514 Est. Cost $7.99 Unrealized
TRILLIUM THERAPEUTICS INC 0.2%
Value $9.098M Shares 618,500 Est. Cost $4.22 Unrealized
SIERRA ONCOLOGY INC 0.2%
Value $9.095M Shares 567,358 Est. Cost $16.03 Unrealized
CNMD CONMED CORP 0.2%
Value $8.736M Shares 78,000 Est. Cost $87.51 Unrealized +3.5%
LEGN LEGEND BIOTECH CORP 0.2%
Value $8.713M Shares 309,418 Est. Cost $38.15 Unrealized
NRIX NURIX THERAPEUTICS INC 0.2%
Value $8.458M Shares 257,250 Est. Cost $25.20 Unrealized +31.5%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.2%
Value $8.328M Shares 1,545,000 Est. Cost $10.05 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.2%
Value $8.074M Shares 28,500 Est. Cost $96.51 Unrealized +187.1%
IMARA INC 0.2%
Value $7.949M Shares 360,500 Est. Cost $16.03 Unrealized
XENE XENON PHARMACEUTICALS INC 0.2%
Value $7.921M Shares 515,000 Est. Cost $14.20 Unrealized -17.6%
QURE UNIQURE NV 0.2%
Value $7.533M Shares 208,500 Est. Cost $56.07 Unrealized -24.8%
DYNAVAX TECHNOLOGIES CORP 0.2%
Value $7.34M Shares 1,649,420 Est. Cost $6.77 Unrealized
ATRECA INC 0.2%
Value $7.287M Shares 451,230 Est. Cost $13.97 Unrealized
ODONATE THERAPEUTICS INC 0.2%
Value $7.252M Shares 377,700 Est. Cost $23.32 Unrealized
MGNX MACROGENICS INC 0.2%
Value $7.075M Shares 309,510 Est. Cost $21.81 Unrealized +5.6%
OSW ONESPAWORLD HOLDINGS LIMITED 0.1%
Value $6.997M Shares 690,000 Est. Cost $11.16 Unrealized -30.1%
INSMED INC 0.1%
Value $6.763M Shares 6,000,000 Est. Cost $0.89 Unrealized
CONSTELLATION PHARMCETICLS I 0.1%
Value $6.703M Shares 232,743 Est. Cost $37.77 Unrealized
ANAB ANAPTYSBIO INC 0.1%
Value $6.652M Shares 309,413 Est. Cost $30.43 Unrealized -20.2%
GRTX GALERA THERAPEUTICS INC 0.1%
Value $5.806M Shares 567,552 Est. Cost $12.01 Unrealized -8.9%
ITEOS THERAPEUTICS INC 0.1%
Value $5.41M Shares 159,957 Est. Cost $24.67 Unrealized
HQY HEALTHEQUITY INC 0.1%
Value $5.228M Shares 75,000 Est. Cost $62.37 Unrealized -0.3%
PANACEA ACQUISITION CORP 0.1%
Value $5.131M Shares 402,088 Est. Cost $12.00 Unrealized
CERT CERTARA INC 0.1%
Value $5.058M Shares 150,000 Est. Cost $36.62 Unrealized 0.0%
ACELRX PHARMACEUTICALS INC 0.1%
Value $4.69M Shares 3,782,457 Est. Cost $1.42 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.1%
Value $4.416M Shares 1,314,374 Est. Cost $6.05 Unrealized
BCLS ACQUISITION CORP 0.1%
Value $3.442M Shares 309,000 Est. Cost $11.14 Unrealized
RETROPHIN INC 0.1%
Value $3.311M Shares 3,250,000 Est. Cost $0.79 Unrealized
POSEIDA THERAPEUTICS INC 0.1%
Value $3.179M Shares 289,754 Est. Cost $8.87 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.1%
Value $2.875M Shares 775,000 Est. Cost $9.99 Unrealized -61.6%
LIFESCI ACQUISITION II CORP 0.0%
Value $2.2M Shares 206,200 Est. Cost $10.67 Unrealized
EUCRATES BIOMEDICAL ACQU COR 0.0%
Value $2.196M Shares 206,000 Est. Cost $10.66 Unrealized
JIYA ACQUISITION CORP 0.0%
Value $2.124M Shares 206,200 Est. Cost $10.30 Unrealized
TURMERIC ACQUISITION CORP 0.0%
Value $2.116M Shares 206,000 Est. Cost $10.27 Unrealized
POPULATION HEALTH INVS CO IN 0.0%
Value $2.101M Shares 201,044 Est. Cost $10.45 Unrealized
MLTX HELIX ACQUISITION CORP 0.0%
Value $1.757M Shares 154,500 Est. Cost $11.37 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value $1.42M Shares 1,500,000 Est. Cost $1.14 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value $1.39M Shares 1,000,000 Est. Cost $1.45 Unrealized
RADIUS HEALTH INC 0.0%
Value $1.348M Shares 1,500,000 Est. Cost $1.01 Unrealized
PACIRA BIOSCIENCES INC 0.0%
Value $1.149M Shares 1,000,000 Est. Cost $0.91 Unrealized
ANNX ANNEXON INC 0.0%
Value $1.137M Shares 45,413 Est. Cost $23.46 Unrealized +9.7%
NEVRO CORP 0.0%
Value $912K Shares 500,000 Est. Cost $1.37 Unrealized