Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q2 2020 (← Previous) (Next →)

Filing Date: Aug 14, 2020

Total Value ($000): $3,645,815 (98.6% shares, 1.4% debt)

Holdings (143)

NBIX NEUROCRINE BIOSCIENCES INC 4.6%
Value ($000) $166,713 Shares 1,366,500 Est. Cost $68.09 Unrealized +62.3%
UNH UNITEDHEALTH GROUP INC 3.3%
Value ($000) $119,455 Shares 405,000 Est. Cost $189.39 Unrealized +37.9%
CNC CENTENE CORP DEL 2.3%
Value ($000) $83,568 Shares 1,315,000 Est. Cost $60.49 Unrealized +7.6%
IRTC IRHYTHM TECHNOLOGIES INC 2.1%
Value ($000) $75,444 Shares 651,000 Est. Cost $54.86 Unrealized +101.0%
BLUEPRINT MEDICINES CORP 2.1%
Value ($000) $74,882 Shares 960,029 Est. Cost $69.72 Unrealized
HUM HUMANA INC 2.0%
Value ($000) $74,060 Shares 191,000 Est. Cost $310.15 Unrealized +14.7%
ISRG INTUITIVE SURGICAL INC 1.9%
Value ($000) $68,380 Shares 120,000 Est. Cost $105.96 Unrealized +69.2%
ZLAB ZAI LAB LTD 1.8%
Value ($000) $66,792 Shares 813,246 Est. Cost $37.14 Unrealized
ARGX ARGENX SE 1.8%
Value ($000) $64,754 Shares 287,500 Est. Cost $120.69 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 1.7%
Value ($000) $63,091 Shares 1,179,720 Est. Cost $44.94 Unrealized +3.0%
IMMUNOMEDICS INC 1.6%
Value ($000) $59,457 Shares 1,677,679 Est. Cost $24.09 Unrealized
PODD INSULET CORP 1.6%
Value ($000) $56,918 Shares 293,000 Est. Cost $113.26 Unrealized +68.8%
BAX BAXTER INTL INC 1.5%
Value ($000) $55,535 Shares 645,000 Est. Cost $64.04 Unrealized +21.3%
SRPT SAREPTA THERAPEUTICS INC 1.5%
Value ($000) $55,397 Shares 345,500 Est. Cost $54.43 Unrealized +150.0%
HCA HCA HEALTHCARE INC 1.5%
Value ($000) $53,334 Shares 549,500 Est. Cost $96.26 Unrealized +3.2%
EHC ENCOMPASS HEALTH CORP 1.4%
Value ($000) $51,557 Shares 832,500 Est. Cost $45.98 Unrealized +9.9%
ACAD ACADIA PHARMACEUTICALS INC 1.4%
Value ($000) $51,136 Shares 1,055,000 Est. Cost $40.52 Unrealized +18.5%
ALNY ALNYLAM PHARMACEUTICALS INC 1.4%
Value ($000) $51,098 Shares 345,000 Est. Cost $85.91 Unrealized +56.9%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.4%
Value ($000) $50,596 Shares 646,841 Est. Cost $55.19 Unrealized +19.9%
PCRX PACIRA BIOSCIENCES 1.3%
Value ($000) $48,535 Shares 925,000 Est. Cost $47.29 Unrealized -11.6%
BIIB BIOGEN INC 1.3%
Value ($000) $48,159 Shares 180,000 Est. Cost $303.47 Unrealized -0.9%
BMRN BIOMARIN PHARMACEUTICAL INC 1.3%
Value ($000) $47,794 Shares 387,500 Est. Cost $85.83 Unrealized +15.8%
NVAX NOVAVAX INC 1.3%
Value ($000) $47,559 Shares 570,598 Est. Cost $38.25 Unrealized 0.0%
TFX TELEFLEX INCORPORATED 1.3%
Value ($000) $47,317 Shares 130,000 Est. Cost $242.14 Unrealized +37.8%
NEVRO CORP 1.3%
Value ($000) $46,115 Shares 386,000 Est. Cost $83.94 Unrealized
INVITAE CORP 1.3%
Value ($000) $45,772 Shares 1,511,127 Est. Cost $15.24 Unrealized
MERSANA THERAPEUTICS INC 1.2%
Value ($000) $43,955 Shares 1,878,428 Est. Cost $15.58 Unrealized
SEATTLE GENETICS INC 1.2%
Value ($000) $42,480 Shares 250,000 Est. Cost $62.91 Unrealized
PORTOLA PHARMACEUTICALS INC 1.1%
Value ($000) $41,488 Shares 2,306,196 Est. Cost $22.26 Unrealized
IDXX IDEXX LABS INC 1.1%
Value ($000) $41,270 Shares 125,000 Est. Cost $200.51 Unrealized +44.4%
ONC BEIGENE LTD 1.1%
Value ($000) $40,506 Shares 215,000 Est. Cost $33.43 Unrealized
EW EDWARDS LIFESCIENCES CORP 1.1%
Value ($000) $40,222 Shares 582,000 Est. Cost $59.31 Unrealized +19.8%
FRPT FRESHPET INC 1.1%
Value ($000) $39,822 Shares 476,000 Est. Cost $46.84 Unrealized +60.7%
MIRATI THERAPEUTICS INC 1.1%
Value ($000) $39,818 Shares 348,761 Est. Cost $63.35 Unrealized
ALGN ALIGN TECHNOLOGY INC 1.1%
Value ($000) $39,245 Shares 143,000 Est. Cost $206.38 Unrealized +9.1%
BSX BOSTON SCIENTIFIC CORP 1.1%
Value ($000) $38,621 Shares 1,100,000 Est. Cost $35.85 Unrealized +0.5%
PEN PENUMBRA INC 1.0%
Value ($000) $37,016 Shares 207,000 Est. Cost $55.16 Unrealized +214.6%
EXAS EXACT SCIENCES CORP 1.0%
Value ($000) $36,863 Shares 424,000 Est. Cost $31.16 Unrealized +156.4%
VRTX VERTEX PHARMACEUTICALS INC 1.0%
Value ($000) $36,289 Shares 125,000 Est. Cost $117.87 Unrealized +130.0%
CHRS COHERUS BIOSCIENCES INC 1.0%
Value ($000) $36,171 Shares 2,025,275 Est. Cost $18.69 Unrealized -9.5%
APPLIED THERAPEUTICS INC 1.0%
Value ($000) $35,845 Shares 991,573 Est. Cost $33.09 Unrealized
ASSEMBLY BIOSCIENCES INC 1.0%
Value ($000) $34,955 Shares 1,498,915 Est. Cost $14.17 Unrealized
ARDX ARDELYX INC 1.0%
Value ($000) $34,705 Shares 5,015,109 Est. Cost $7.08 Unrealized -1.8%
GLPG GALAPAGOS NV 0.9%
Value ($000) $34,526 Shares 175,000 Est. Cost $55.87 Unrealized
EPIZYME INC 0.9%
Value ($000) $33,792 Shares 2,104,084 Est. Cost $15.04 Unrealized
AMARIN CORP PLC 0.9%
Value ($000) $32,178 Shares 4,650,000 Est. Cost $4.95 Unrealized
ASND ASCENDIS PHARMA A S 0.9%
Value ($000) $31,577 Shares 213,500 Est. Cost $18.03 Unrealized
CI CIGNA CORP NEW 0.8%
Value ($000) $30,212 Shares 161,000 Est. Cost $166.06 Unrealized +4.5%
AMGN AMGEN INC 0.8%
Value ($000) $29,718 Shares 126,000 Est. Cost $158.01 Unrealized +21.3%
MDGL MADRIGAL PHARMACEUTICALS INC 0.8%
Value ($000) $28,796 Shares 254,268 Est. Cost $40.26 Unrealized +144.2%
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.8%
Value ($000) $27,819 Shares 575,000 Est. Cost $43.89 Unrealized -16.9%
INCY INCYTE CORP 0.7%
Value ($000) $25,993 Shares 250,000 Est. Cost $68.12 Unrealized +41.5%
MIRM MIRUM PHARMACEUTICALS INC 0.7%
Value ($000) $25,685 Shares 1,319,910 Est. Cost $11.97 Unrealized +39.6%
RPRX ROYALTY PHARMA PLC 0.7%
Value ($000) $24,275 Shares 500,000 Est. Cost $49.50 Unrealized 0.0%
INSP INSPIRE MED SYS INC 0.6%
Value ($000) $23,060 Shares 265,000 Est. Cost $74.71 Unrealized +2.9%
KARUNA THERAPEUTICS INC 0.6%
Value ($000) $22,661 Shares 203,312 Est. Cost $30.50 Unrealized
ACHC ACADIA HEALTHCARE COMPANY IN 0.6%
Value ($000) $22,608 Shares 900,000 Est. Cost $44.80 Unrealized -44.3%
RETROPHIN INC 0.6%
Value ($000) $20,905 Shares 1,024,261 Est. Cost $21.78 Unrealized
ALEXION PHARMACEUTICALS INC 0.6%
Value ($000) $20,596 Shares 183,500 Est. Cost $112.24 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.6%
Value ($000) $20,563 Shares 1,175,000 Est. Cost $15.97 Unrealized +22.6%
APREA THERAPEUTICS INC 0.6%
Value ($000) $20,099 Shares 518,290 Est. Cost $45.64 Unrealized
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.5%
Value ($000) $19,889 Shares 1,986,910 Est. Cost $10.05 Unrealized
CYTOKINETICS INC 0.5%
Value ($000) $19,082 Shares 8,000,000 Est. Cost $1.32 Unrealized
ALLO ALLOGENE THERAPEUTICS INC 0.5%
Value ($000) $18,861 Shares 440,468 Est. Cost $29.16 Unrealized +24.0%
HQY HEALTHEQUITY INC 0.5%
Value ($000) $18,780 Shares 320,100 Est. Cost $63.30 Unrealized -12.6%
ODONATE THERAPEUTICS INC 0.5%
Value ($000) $18,512 Shares 437,231 Est. Cost $24.50 Unrealized
PHR PHREESIA INC 0.5%
Value ($000) $18,424 Shares 651,500 Est. Cost $26.72 Unrealized -2.5%
QURE UNIQURE NV 0.5%
Value ($000) $18,345 Shares 407,133 Est. Cost $56.31 Unrealized +4.9%
GLOBAL BLOOD THERAPEUTICS IN 0.5%
Value ($000) $18,199 Shares 288,279 Est. Cost $39.83 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.5%
Value ($000) $17,384 Shares 828,218 Est. Cost $21.11 Unrealized +21.7%
ALLAKOS INC 0.5%
Value ($000) $17,177 Shares 239,032 Est. Cost $45.44 Unrealized
CGEN COMPUGEN LTD 0.5%
Value ($000) $16,978 Shares 1,130,375 Est. Cost $5.69 Unrealized +137.1%
MYOKARDIA INC 0.5%
Value ($000) $16,688 Shares 172,716 Est. Cost $73.19 Unrealized
FUSION PHARMACEUTICALS INC 0.4%
Value ($000) $16,370 Shares 937,041 Est. Cost $17.47 Unrealized
ARVN ARVINAS INC 0.4%
Value ($000) $16,148 Shares 481,468 Est. Cost $31.93 Unrealized +32.9%
WST WEST PHARMACEUTICAL SVSC INC 0.4%
Value ($000) $16,129 Shares 71,000 Est. Cost $96.51 Unrealized +100.8%
GOSSAMER BIO INC 0.4%
Value ($000) $15,746 Shares 15,573,000 Est. Cost $1.01 Unrealized
CONSTELLATION PHARMCETICLS I 0.4%
Value ($000) $15,496 Shares 515,680 Est. Cost $37.77 Unrealized
GH GUARDANT HEALTH INC 0.4%
Value ($000) $15,415 Shares 190,000 Est. Cost $38.92 Unrealized +107.0%
FOLD AMICUS THERAPEUTICS INC 0.4%
Value ($000) $15,334 Shares 1,016,821 Est. Cost $11.49 Unrealized +6.1%
COVETRUS INC 0.4%
Value ($000) $14,983 Shares 837,500 Est. Cost $18.23 Unrealized
BIOHAVEN PHARMACTL HLDG CO L 0.4%
Value ($000) $14,901 Shares 203,817 Est. Cost $32.47 Unrealized
JNJ JOHNSON & JOHNSON 0.4%
Value ($000) $14,766 Shares 105,000 Est. Cost $113.68 Unrealized +9.3%
GW PHARMACEUTICALS PLC 0.4%
Value ($000) $14,732 Shares 120,043 Est. Cost $113.94 Unrealized
DYNAVAX TECHNOLOGIES CORP 0.4%
Value ($000) $14,725 Shares 1,660,120 Est. Cost $6.77 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.4%
Value ($000) $14,712 Shares 1,590,528 Est. Cost $7.80 Unrealized
RADIUS HEALTH INC 0.4%
Value ($000) $13,674 Shares 1,003,259 Est. Cost $36.38 Unrealized
MOMENTA PHARMACEUTICALS INC 0.4%
Value ($000) $13,308 Shares 400,000 Est. Cost $19.06 Unrealized
TGTX TG THERAPEUTICS INC 0.4%
Value ($000) $13,303 Shares 682,926 Est. Cost $16.11 Unrealized 0.0%
PPD INC 0.4%
Value ($000) $13,065 Shares 487,500 Est. Cost $18.50 Unrealized
CNMD CONMED CORP 0.4%
Value ($000) $12,958 Shares 180,000 Est. Cost $87.51 Unrealized -24.3%
FIBROGEN INC 0.4%
Value ($000) $12,785 Shares 315,449 Est. Cost $30.22 Unrealized
DECIPHERA PHARMACEUTICALS IN 0.3%
Value ($000) $12,531 Shares 209,829 Est. Cost $45.47 Unrealized
HCAT HEALTH CATALYST INC 0.3%
Value ($000) $12,397 Shares 425,000 Est. Cost $33.35 Unrealized -17.2%
TRANSLATE BIO INC 0.3%
Value ($000) $11,850 Shares 661,268 Est. Cost $12.61 Unrealized
BFAM BRIGHT HORIZONS FAM SOL IN D 0.3%
Value ($000) $11,544 Shares 98,500 Est. Cost $114.15 Unrealized 0.0%
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value ($000) $11,420 Shares 512,111 Est. Cost $22.89 Unrealized -14.8%
ZOGENIX INC 0.3%
Value ($000) $11,236 Shares 415,982 Est. Cost $33.03 Unrealized
IMVT IMMUNOVANT INC 0.3%
Value ($000) $11,014 Shares 452,319 Est. Cost $17.90 Unrealized +19.7%
RIGEL PHARMACEUTICALS INC 0.3%
Value ($000) $10,793 Shares 5,897,642 Est. Cost $2.87 Unrealized
MYOVANT SCIENCES LTD 0.3%
Value ($000) $10,483 Shares 508,411 Est. Cost $14.43 Unrealized
NVCR NOVOCURE LTD 0.3%
Value ($000) $10,378 Shares 175,000 Est. Cost $37.58 Unrealized +75.0%
PRTA PROTHENA CORP PLC 0.3%
Value ($000) $10,347 Shares 989,218 Est. Cost $11.62 Unrealized -4.4%
IMARA INC 0.3%
Value ($000) $10,078 Shares 364,733 Est. Cost $16.03 Unrealized
SHOCKWAVE MED INC 0.3%
Value ($000) $9,356 Shares 197,500 Est. Cost $47.37 Unrealized
GAMIDA CELL LTD 0.3%
Value ($000) $9,216 Shares 2,016,656 Est. Cost $4.82 Unrealized
LEGN LEGEND BIOTECH CORP 0.2%
Value ($000) $8,763 Shares 205,896 Est. Cost $42.56 Unrealized
PARATEK PHARMACEUTICALS INC 0.2%
Value ($000) $8,640 Shares 1,655,164 Est. Cost $6.17 Unrealized
REPARE THERAPEUTICS INC 0.2%
Value ($000) $8,525 Shares 274,815 Est. Cost $31.02 Unrealized
OBSEVA SA 0.2%
Value ($000) $8,385 Shares 1,423,552 Est. Cost $7.24 Unrealized
SPRO SPERO THERAPEUTICS INC 0.2%
Value ($000) $8,323 Shares 615,177 Est. Cost $11.81 Unrealized -4.9%
OSW ONESPAWORLD HOLDINGS LIMITED 0.2%
Value ($000) $8,300 Shares 1,740,000 Est. Cost $11.16 Unrealized -52.0%
STAA STAAR SURGICAL CO 0.2%
Value ($000) $8,000 Shares 130,000 Est. Cost $33.70 Unrealized +21.2%
CHIASMA INC 0.2%
Value ($000) $7,491 Shares 1,392,312 Est. Cost $9.98 Unrealized
BELLUS HEALTH INC NEW 0.2%
Value ($000) $7,163 Shares 696,115 Est. Cost $10.29 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value ($000) $7,055 Shares 357,409 Est. Cost $14.73 Unrealized
IGM BIOSCIENCES INC 0.2%
Value ($000) $6,955 Shares 95,278 Est. Cost $73.00 Unrealized
ANAB ANAPTYSBIO INC 0.2%
Value ($000) $6,852 Shares 306,713 Est. Cost $30.43 Unrealized -39.9%
TXG 10X GENOMICS INC 0.2%
Value ($000) $6,788 Shares 76,000 Est. Cost $56.95 Unrealized +36.8%
INTERSECT ENT INC 0.2%
Value ($000) $6,770 Shares 500,000 Est. Cost $24.99 Unrealized
MGNX MACROGENICS INC 0.2%
Value ($000) $6,548 Shares 234,516 Est. Cost $20.90 Unrealized -16.9%
XENE XENON PHARMACEUTICALS INC 0.2%
Value ($000) $6,467 Shares 515,711 Est. Cost $14.20 Unrealized -10.4%
TRILLIUM THERAPEUTICS INC 0.2%
Value ($000) $6,170 Shares 762,618 Est. Cost $4.11 Unrealized
AKERO THERAPEUTICS INC 0.2%
Value ($000) $6,055 Shares 242,985 Est. Cost $19.58 Unrealized
INSMED INC 0.2%
Value ($000) $5,861 Shares 6,000,000 Est. Cost $0.89 Unrealized
PASSAGE BIO INC 0.2%
Value ($000) $5,560 Shares 203,436 Est. Cost $15.75 Unrealized
BURNING ROCK BIOTECH LTD 0.1%
Value ($000) $5,402 Shares 200,000 Est. Cost $27.01 Unrealized
HOMOLOGY MEDICINES INC 0.1%
Value ($000) $5,341 Shares 351,638 Est. Cost $18.81 Unrealized
PHASEBIO PHARMACEUTICALS INC 0.1%
Value ($000) $5,262 Shares 1,143,925 Est. Cost $6.43 Unrealized
GRTX GALERA THERAPEUTICS INC 0.1%
Value ($000) $4,052 Shares 567,552 Est. Cost $12.01 Unrealized -11.6%
INARI MED INC 0.1%
Value ($000) $3,875 Shares 80,000 Est. Cost $48.44 Unrealized
CORBF GLOBAL CORD BLOOD CORPORATIO 0.1%
Value ($000) $2,868 Shares 925,000 Est. Cost $9.99 Unrealized -70.9%
RETROPHIN INC 0.1%
Value ($000) $2,713 Shares 3,250,000 Est. Cost $0.79 Unrealized
ACRS ACLARIS THERAPEUTICS INC 0.1%
Value ($000) $2,663 Shares 1,644,015 Est. Cost $8.98 Unrealized -85.1%
FIVE PRIME THERAPEUTICS INC 0.1%
Value ($000) $2,481 Shares 406,729 Est. Cost $16.28 Unrealized
CYTK CYTOKINETICS INC 0.1%
Value ($000) $1,825 Shares 77,417 Est. Cost $18.75 Unrealized 0.0%
NEUROCRINE BIOSCIENCES INC 0.0%
Value ($000) $1,673 Shares 1,000,000 Est. Cost $1.45 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value ($000) $1,460 Shares 1,500,000 Est. Cost $1.14 Unrealized
RADIUS HEALTH INC 0.0%
Value ($000) $1,105 Shares 1,500,000 Est. Cost $1.01 Unrealized
PACIRA BIOSCIENCES 0.0%
Value ($000) $1,094 Shares 1,000,000 Est. Cost $0.91 Unrealized
NABRIVA THERAPEUTICS PLC 0.0%
Value ($000) $720 Shares 1,067,664 Est. Cost $4.22 Unrealized
NEVRO CORP 0.0%
Value ($000) $683 Shares 500,000 Est. Cost $1.37 Unrealized
BRISTOL-MYERS SQUIBB CO 0.0%
Value ($000) $663 Shares 185,150 Est. Cost $3.01 Unrealized