Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q4 2020 (← Previous) (Next →)

Filing Date: Feb 16, 2021

Total Value ($000): $4,716,262 (99.0% shares, 1.0% debt)

Holdings (155)

NBIX NEUROCRINE BIOSCIENCES INC 3.2%
Value ($000) $150,964 Shares 1,575,000 Est. Cost $73.06 Unrealized +32.2%
IRTC IRHYTHM TECHNOLOGIES INC 3.1%
Value ($000) $148,256 Shares 625,000 Est. Cost $54.86 Unrealized +315.4%
UNH UNITEDHEALTH GROUP INC 3.0%
Value ($000) $142,025 Shares 405,000 Est. Cost $189.39 Unrealized +62.7%
HUM HUMANA INC 2.5%
Value ($000) $116,927 Shares 285,000 Est. Cost $336.21 Unrealized +18.0%
ZLAB ZAI LAB LTD 2.5%
Value ($000) $115,702 Shares 854,899 Est. Cost $41.30 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 2.3%
Value ($000) $109,344 Shares 2,523,521 Est. Cost $42.75 Unrealized -7.5%
ISRG INTUITIVE SURGICAL INC 2.1%
Value ($000) $98,172 Shares 120,000 Est. Cost $105.96 Unrealized +134.3%
BLUEPRINT MEDICINES CORP 2.0%
Value ($000) $94,430 Shares 842,000 Est. Cost $69.72 Unrealized
ALGN ALIGN TECHNOLOGY INC 1.9%
Value ($000) $87,371 Shares 163,500 Est. Cost $236.88 Unrealized +89.8%
ACAD ACADIA PHARMACEUTICALS INC 1.8%
Value ($000) $86,204 Shares 1,612,500 Est. Cost $41.60 Unrealized +19.3%
ARGX ARGENX SE 1.8%
Value ($000) $84,551 Shares 287,500 Est. Cost $120.69 Unrealized
MIRATI THERAPEUTICS INC 1.7%
Value ($000) $81,959 Shares 373,152 Est. Cost $73.57 Unrealized
PODD INSULET CORP 1.7%
Value ($000) $81,290 Shares 318,000 Est. Cost $120.20 Unrealized +106.4%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.7%
Value ($000) $78,421 Shares 566,500 Est. Cost $55.19 Unrealized +114.9%
INVITAE CORP 1.6%
Value ($000) $77,435 Shares 1,852,067 Est. Cost $20.03 Unrealized
HCA HCA HEALTHCARE INC 1.6%
Value ($000) $74,007 Shares 450,000 Est. Cost $96.26 Unrealized +45.2%
FRPT FRESHPET INC 1.5%
Value ($000) $71,918 Shares 506,500 Est. Cost $50.14 Unrealized +157.4%
AVIR ATEA PHARMACEUTICALS INC 1.5%
Value ($000) $70,917 Shares 1,697,403 Est. Cost $32.23 Unrealized 0.0%
NEVRO CORP 1.4%
Value ($000) $68,375 Shares 395,000 Est. Cost $85.97 Unrealized
EXAS EXACT SCIENCES CORP 1.4%
Value ($000) $64,258 Shares 485,000 Est. Cost $42.45 Unrealized +184.9%
ARVN ARVINAS INC 1.3%
Value ($000) $63,358 Shares 746,000 Est. Cost $32.84 Unrealized +5.0%
NVAX NOVAVAX INC 1.3%
Value ($000) $62,803 Shares 563,205 Est. Cost $40.40 Unrealized +163.1%
IDXX IDEXX LABS INC 1.3%
Value ($000) $62,484 Shares 125,000 Est. Cost $200.51 Unrealized +123.1%
PCRX PACIRA BIOSCIENCES INC 1.3%
Value ($000) $61,336 Shares 1,025,000 Est. Cost $48.35 Unrealized +21.1%
ONC BEIGENE LTD 1.2%
Value ($000) $58,138 Shares 225,000 Est. Cost $43.43 Unrealized
SRPT SAREPTA THERAPEUTICS INC 1.2%
Value ($000) $56,049 Shares 328,750 Est. Cost $54.43 Unrealized +172.2%
MERSANA THERAPEUTICS INC 1.2%
Value ($000) $54,914 Shares 2,063,667 Est. Cost $16.53 Unrealized
TFX TELEFLEX INCORPORATED 1.1%
Value ($000) $53,504 Shares 130,000 Est. Cost $242.14 Unrealized +47.5%
EW EDWARDS LIFESCIENCES CORP 1.1%
Value ($000) $53,096 Shares 582,000 Est. Cost $59.31 Unrealized +39.8%
ALEXION PHARMACEUTICALS INC 1.0%
Value ($000) $47,927 Shares 306,750 Est. Cost $124.26 Unrealized
ALLAKOS INC 1.0%
Value ($000) $47,810 Shares 341,500 Est. Cost $73.38 Unrealized
PHR PHREESIA INC 1.0%
Value ($000) $46,121 Shares 850,000 Est. Cost $28.21 Unrealized +52.1%
HORIZON THERAPEUTICS PUB L 1.0%
Value ($000) $45,719 Shares 625,000 Est. Cost $77.68 Unrealized
KYMR KYMERA THERAPEUTICS INC 0.9%
Value ($000) $44,260 Shares 713,865 Est. Cost $30.53 Unrealized +59.8%
CNC CENTENE CORP DEL 0.9%
Value ($000) $43,822 Shares 730,000 Est. Cost $60.49 Unrealized +5.0%
SEAGEN INC 0.9%
Value ($000) $43,785 Shares 250,000 Est. Cost $175.14 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 0.9%
Value ($000) $43,540 Shares 335,000 Est. Cost $85.91 Unrealized +55.4%
EHC ENCOMPASS HEALTH CORP 0.9%
Value ($000) $41,345 Shares 500,000 Est. Cost $45.98 Unrealized +20.9%
IMVT IMMUNOVANT INC 0.9%
Value ($000) $41,155 Shares 891,000 Est. Cost $26.59 Unrealized +73.9%
EARGO INC 0.9%
Value ($000) $40,338 Shares 900,000 Est. Cost $44.82 Unrealized
INSP INSPIRE MED SYS INC 0.9%
Value ($000) $40,129 Shares 213,350 Est. Cost $74.71 Unrealized +118.9%
SPRUCE BIOSCIENCES INC 0.8%
Value ($000) $39,650 Shares 1,631,000 Est. Cost $24.31 Unrealized
ASND ASCENDIS PHARMA A/S 0.8%
Value ($000) $38,943 Shares 233,500 Est. Cost $29.70 Unrealized
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.8%
Value ($000) $37,548 Shares 635,000 Est. Cost $43.72 Unrealized +18.0%
COVETRUS INC 0.8%
Value ($000) $36,931 Shares 1,285,000 Est. Cost $20.58 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 0.7%
Value ($000) $35,182 Shares 700,000 Est. Cost $44.80 Unrealized -11.0%
LUNG PULMONX CORP 0.7%
Value ($000) $34,510 Shares 500,000 Est. Cost $48.97 Unrealized 0.0%
HCAT HEALTH CATALYST INC 0.7%
Value ($000) $34,171 Shares 785,000 Est. Cost $33.94 Unrealized +8.7%
ARDX ARDELYX INC 0.7%
Value ($000) $33,308 Shares 5,148,112 Est. Cost $7.05 Unrealized -15.8%
NKTX NKARTA INC 0.7%
Value ($000) $33,255 Shares 541,000 Est. Cost $29.47 Unrealized +40.9%
BIIB BIOGEN INC 0.7%
Value ($000) $31,832 Shares 130,000 Est. Cost $303.47 Unrealized -14.6%
NVCR NOVOCURE LTD 0.6%
Value ($000) $30,282 Shares 175,000 Est. Cost $37.58 Unrealized +264.1%
ATHIRA PHARMA INC 0.6%
Value ($000) $29,486 Shares 860,902 Est. Cost $18.46 Unrealized
BSX BOSTON SCIENTIFIC CORP 0.6%
Value ($000) $28,760 Shares 800,000 Est. Cost $35.85 Unrealized +0.5%
BFAM BRIGHT HORIZONS FAM SOL IN D 0.6%
Value ($000) $28,630 Shares 165,500 Est. Cost $118.86 Unrealized +37.7%
MDGL MADRIGAL PHARMACEUTICALS INC 0.6%
Value ($000) $28,545 Shares 256,768 Est. Cost $40.26 Unrealized +203.6%
TVTX TRAVERE THERAPEUTICS INC 0.6%
Value ($000) $27,827 Shares 1,021,000 Est. Cost $23.35 Unrealized 0.0%
PEN PENUMBRA INC 0.6%
Value ($000) $27,825 Shares 159,000 Est. Cost $55.16 Unrealized +297.1%
EPIZYME INC 0.6%
Value ($000) $27,728 Shares 2,553,208 Est. Cost $14.49 Unrealized
MIRM MIRUM PHARMACEUTICALS INC 0.6%
Value ($000) $26,129 Shares 1,496,525 Est. Cost $12.84 Unrealized +53.1%
INCY INCYTE CORP 0.6%
Value ($000) $26,094 Shares 300,000 Est. Cost $72.84 Unrealized +18.8%
PRLD PRELUDE THERAPEUTICS INC 0.5%
Value ($000) $25,784 Shares 360,363 Est. Cost $28.24 Unrealized +76.1%
GH GUARDANT HEALTH INC 0.5%
Value ($000) $25,776 Shares 200,000 Est. Cost $42.73 Unrealized +169.3%
STTK SHATTUCK LABS INC 0.5%
Value ($000) $25,628 Shares 489,000 Est. Cost $32.14 Unrealized 0.0%
TGTX TG THERAPEUTICS INC 0.5%
Value ($000) $25,438 Shares 489,000 Est. Cost $16.11 Unrealized +109.8%
KARUNA THERAPEUTICS INC 0.5%
Value ($000) $24,783 Shares 243,950 Est. Cost $38.33 Unrealized
BIIB BIOGEN INC 0.5%
Value ($000) $24,486 Shares 100,000 Est. Cost $303.47 Unrealized -14.6%
BAX BAXTER INTL INC 0.5%
Value ($000) $24,152 Shares 301,000 Est. Cost $64.04 Unrealized +10.9%
RPRX ROYALTY PHARMA PLC 0.5%
Value ($000) $24,024 Shares 480,000 Est. Cost $49.50 Unrealized -14.3%
SPRO SPERO THERAPEUTICS INC 0.5%
Value ($000) $23,947 Shares 1,235,000 Est. Cost $11.82 Unrealized +31.9%
FOLD AMICUS THERAPEUTICS INC 0.5%
Value ($000) $23,760 Shares 1,029,000 Est. Cost $11.49 Unrealized +78.0%
OAK STR HEALTH INC 0.5%
Value ($000) $22,935 Shares 375,000 Est. Cost $54.98 Unrealized
SHOCKWAVE MED INC 0.5%
Value ($000) $22,818 Shares 220,000 Est. Cost $50.28 Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 0.5%
Value ($000) $22,229 Shares 253,500 Est. Cost $85.83 Unrealized -7.6%
COLL COLLEGIUM PHARMACEUTICAL INC 0.5%
Value ($000) $22,033 Shares 1,100,000 Est. Cost $15.97 Unrealized +22.3%
RCKT ROCKET PHARMACEUTICALS INC 0.5%
Value ($000) $21,956 Shares 400,370 Est. Cost $36.45 Unrealized 0.0%
ACCOLADE INC 0.5%
Value ($000) $21,750 Shares 500,000 Est. Cost $40.49 Unrealized
AMARIN CORP PLC 0.4%
Value ($000) $20,514 Shares 4,195,000 Est. Cost $4.95 Unrealized
CHRS COHERUS BIOSCIENCES INC 0.4%
Value ($000) $20,204 Shares 1,162,500 Est. Cost $18.69 Unrealized -4.8%
ABCAM PLC 0.4%
Value ($000) $19,934 Shares 925,000 Est. Cost $21.55 Unrealized
PPD INC 0.4%
Value ($000) $17,966 Shares 525,000 Est. Cost $19.82 Unrealized
GAMIDA CELL LTD 0.4%
Value ($000) $17,569 Shares 2,094,000 Est. Cost $4.95 Unrealized
ACRS ACLARIS THERAPEUTICS INC 0.4%
Value ($000) $17,314 Shares 2,676,100 Est. Cost $6.82 Unrealized -38.2%
CYTOKINETICS INC 0.4%
Value ($000) $17,270 Shares 8,000,000 Est. Cost $1.32 Unrealized
INOZYME PHARMA INC 0.4%
Value ($000) $17,142 Shares 830,546 Est. Cost $26.29 Unrealized
RLAY RELAY THERAPEUTICS INC 0.4%
Value ($000) $17,123 Shares 412,000 Est. Cost $38.13 Unrealized +18.6%
RIGEL PHARMACEUTICALS INC 0.4%
Value ($000) $16,600 Shares 4,742,891 Est. Cost $2.87 Unrealized
KURA KURA ONCOLOGY INC 0.4%
Value ($000) $16,595 Shares 508,116 Est. Cost $35.14 Unrealized 0.0%
CEREVEL THERAPEUTICS HLDNG I 0.4%
Value ($000) $16,563 Shares 999,000 Est. Cost $16.58 Unrealized
GLPG GALAPAGOS NV 0.3%
Value ($000) $16,332 Shares 165,000 Est. Cost $55.87 Unrealized
INTERSECT ENT INC 0.3%
Value ($000) $16,030 Shares 700,000 Est. Cost $24.39 Unrealized
TARA PROTARA THERAPEUTICS INC 0.3%
Value ($000) $15,572 Shares 643,200 Est. Cost $23.19 Unrealized -7.0%
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value ($000) $14,578 Shares 490,339 Est. Cost $23.02 Unrealized +10.4%
JAZZ JAZZ PHARMACEUTICALS PLC 0.3%
Value ($000) $14,442 Shares 87,500 Est. Cost $132.53 Unrealized +12.4%
MYOVANT SCIENCES LTD 0.3%
Value ($000) $14,224 Shares 515,000 Est. Cost $14.43 Unrealized
GOSSAMER BIO INC 0.3%
Value ($000) $14,184 Shares 15,573,000 Est. Cost $1.01 Unrealized
APPLIED THERAPEUTICS INC 0.3%
Value ($000) $13,995 Shares 635,837 Est. Cost $33.09 Unrealized
GW PHARMACEUTICALS PLC 0.3%
Value ($000) $13,755 Shares 119,188 Est. Cost $113.94 Unrealized
CGEN COMPUGEN LTD 0.3%
Value ($000) $13,728 Shares 1,133,600 Est. Cost $5.69 Unrealized +142.3%
PRTA PROTHENA CORP PLC 0.3%
Value ($000) $13,705 Shares 1,141,100 Est. Cost $11.65 Unrealized +1.5%
AKERO THERAPEUTICS INC 0.3%
Value ($000) $13,297 Shares 515,371 Est. Cost $24.61 Unrealized
KINNATE BIOPHARMA INC 0.3%
Value ($000) $12,916 Shares 324,686 Est. Cost $39.78 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.3%
Value ($000) $12,435 Shares 1,580,000 Est. Cost $7.80 Unrealized
FIVE PRIME THERAPEUTICS INC 0.3%
Value ($000) $12,275 Shares 721,633 Est. Cost $16.74 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.3%
Value ($000) $12,052 Shares 678,200 Est. Cost $21.11 Unrealized -15.0%
TRANSLATE BIO INC 0.3%
Value ($000) $11,860 Shares 643,500 Est. Cost $12.61 Unrealized
FIBROGEN INC 0.2%
Value ($000) $11,475 Shares 309,387 Est. Cost $30.22 Unrealized
FUSION PHARMACEUTICALS INC 0.2%
Value ($000) $11,143 Shares 948,327 Est. Cost $17.41 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value ($000) $10,921 Shares 360,500 Est. Cost $14.73 Unrealized
TXG 10X GENOMICS INC 0.2%
Value ($000) $10,762 Shares 76,000 Est. Cost $56.95 Unrealized +154.8%
AUPH AURINIA PHARMACEUTICALS INC 0.2%
Value ($000) $10,700 Shares 773,669 Est. Cost $14.49 Unrealized +0.5%
CHINOOK THERAPEUTICS INC 0.2%
Value ($000) $10,608 Shares 668,849 Est. Cost $15.86 Unrealized
PARATEK PHARMACEUTICALS INC 0.2%
Value ($000) $10,521 Shares 1,680,614 Est. Cost $6.16 Unrealized
CHIASMA INC 0.2%
Value ($000) $9,294 Shares 2,136,514 Est. Cost $7.99 Unrealized
TRILLIUM THERAPEUTICS INC 0.2%
Value ($000) $9,098 Shares 618,500 Est. Cost $4.22 Unrealized
SIERRA ONCOLOGY INC 0.2%
Value ($000) $9,095 Shares 567,358 Est. Cost $16.03 Unrealized
CNMD CONMED CORP 0.2%
Value ($000) $8,736 Shares 78,000 Est. Cost $87.51 Unrealized +3.5%
LEGN LEGEND BIOTECH CORP 0.2%
Value ($000) $8,713 Shares 309,418 Est. Cost $38.15 Unrealized
NRIX NURIX THERAPEUTICS INC 0.2%
Value ($000) $8,458 Shares 257,250 Est. Cost $25.20 Unrealized +31.5%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.2%
Value ($000) $8,328 Shares 1,545,000 Est. Cost $10.05 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.2%
Value ($000) $8,074 Shares 28,500 Est. Cost $96.51 Unrealized +187.1%
IMARA INC 0.2%
Value ($000) $7,949 Shares 360,500 Est. Cost $16.03 Unrealized
XENE XENON PHARMACEUTICALS INC 0.2%
Value ($000) $7,921 Shares 515,000 Est. Cost $14.20 Unrealized -17.6%
QURE UNIQURE NV 0.2%
Value ($000) $7,533 Shares 208,500 Est. Cost $56.07 Unrealized -24.8%
DYNAVAX TECHNOLOGIES CORP 0.2%
Value ($000) $7,340 Shares 1,649,420 Est. Cost $6.77 Unrealized
ATRECA INC 0.2%
Value ($000) $7,287 Shares 451,230 Est. Cost $13.97 Unrealized
ODONATE THERAPEUTICS INC 0.2%
Value ($000) $7,252 Shares 377,700 Est. Cost $23.32 Unrealized
MGNX MACROGENICS INC 0.2%
Value ($000) $7,075 Shares 309,510 Est. Cost $21.81 Unrealized +5.6%
OSW ONESPAWORLD HOLDINGS LIMITED 0.1%
Value ($000) $6,997 Shares 690,000 Est. Cost $11.16 Unrealized -30.1%
INSMED INC 0.1%
Value ($000) $6,763 Shares 6,000,000 Est. Cost $0.89 Unrealized
CONSTELLATION PHARMCETICLS I 0.1%
Value ($000) $6,703 Shares 232,743 Est. Cost $37.77 Unrealized
ANAB ANAPTYSBIO INC 0.1%
Value ($000) $6,652 Shares 309,413 Est. Cost $30.43 Unrealized -20.2%
GRTX GALERA THERAPEUTICS INC 0.1%
Value ($000) $5,806 Shares 567,552 Est. Cost $12.01 Unrealized -8.9%
ITEOS THERAPEUTICS INC 0.1%
Value ($000) $5,410 Shares 159,957 Est. Cost $24.67 Unrealized
HQY HEALTHEQUITY INC 0.1%
Value ($000) $5,228 Shares 75,000 Est. Cost $62.37 Unrealized -0.3%
PANACEA ACQUISITION CORP 0.1%
Value ($000) $5,131 Shares 402,088 Est. Cost $12.00 Unrealized
CERT CERTARA INC 0.1%
Value ($000) $5,058 Shares 150,000 Est. Cost $36.62 Unrealized 0.0%
ACELRX PHARMACEUTICALS INC 0.1%
Value ($000) $4,690 Shares 3,782,457 Est. Cost $1.42 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.1%
Value ($000) $4,416 Shares 1,314,374 Est. Cost $6.05 Unrealized
BCLS ACQUISITION CORP 0.1%
Value ($000) $3,442 Shares 309,000 Est. Cost $11.14 Unrealized
RETROPHIN INC 0.1%
Value ($000) $3,311 Shares 3,250,000 Est. Cost $0.79 Unrealized
POSEIDA THERAPEUTICS INC 0.1%
Value ($000) $3,179 Shares 289,754 Est. Cost $8.87 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.1%
Value ($000) $2,875 Shares 775,000 Est. Cost $9.99 Unrealized -61.6%
LIFESCI ACQUISITION II CORP 0.0%
Value ($000) $2,200 Shares 206,200 Est. Cost $10.67 Unrealized
EUCRATES BIOMEDICAL ACQU COR 0.0%
Value ($000) $2,196 Shares 206,000 Est. Cost $10.66 Unrealized
JIYA ACQUISITION CORP 0.0%
Value ($000) $2,124 Shares 206,200 Est. Cost $10.30 Unrealized
TURMERIC ACQUISITION CORP 0.0%
Value ($000) $2,116 Shares 206,000 Est. Cost $10.27 Unrealized
POPULATION HEALTH INVS CO IN 0.0%
Value ($000) $2,101 Shares 201,044 Est. Cost $10.45 Unrealized
MLTX HELIX ACQUISITION CORP 0.0%
Value ($000) $1,757 Shares 154,500 Est. Cost $11.37 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value ($000) $1,420 Shares 1,500,000 Est. Cost $1.14 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value ($000) $1,390 Shares 1,000,000 Est. Cost $1.45 Unrealized
RADIUS HEALTH INC 0.0%
Value ($000) $1,348 Shares 1,500,000 Est. Cost $1.01 Unrealized
PACIRA BIOSCIENCES INC 0.0%
Value ($000) $1,149 Shares 1,000,000 Est. Cost $0.91 Unrealized
ANNX ANNEXON INC 0.0%
Value ($000) $1,137 Shares 45,413 Est. Cost $23.46 Unrealized +9.7%
NEVRO CORP 0.0%
Value ($000) $912 Shares 500,000 Est. Cost $1.37 Unrealized