Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q1 2021 (← Previous) (Next →)

Filing Date: May 17, 2021

Total Value ($000): $4,583,741 (99.1% shares, 0.9% debt)

Holdings (151)

AGIO AGIOS PHARMACEUTICALS INC 2.9%
Value ($000) $131,352 Shares 2,543,600 Est. Cost $42.75 Unrealized +15.9%
HUM HUMANA INC 2.8%
Value ($000) $126,194 Shares 301,000 Est. Cost $338.61 Unrealized +12.6%
ZLAB ZAI LAB LTD 2.7%
Value ($000) $124,557 Shares 933,500 Est. Cost $49.06 Unrealized
AVIR ATEA PHARMACEUTICALS INC 2.3%
Value ($000) $104,660 Shares 1,694,903 Est. Cost $32.23 Unrealized +109.6%
UNH UNITEDHEALTH GROUP INC 2.2%
Value ($000) $102,319 Shares 275,000 Est. Cost $189.39 Unrealized +68.8%
FIVE PRIME THERAPEUTICS INC 2.2%
Value ($000) $100,233 Shares 2,660,822 Est. Cost $31.99 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 2.2%
Value ($000) $98,709 Shares 1,015,000 Est. Cost $73.06 Unrealized +43.5%
IMCR IMMUNOCORE HLDGS PLC 2.1%
Value ($000) $97,583 Shares 2,292,285 Est. Cost $42.57 Unrealized
PODD INSULET CORP 2.1%
Value ($000) $96,801 Shares 371,000 Est. Cost $141.29 Unrealized +89.5%
ALGN ALIGN TECHNOLOGY INC 2.1%
Value ($000) $96,122 Shares 177,500 Est. Cost $261.79 Unrealized +111.2%
ACRS ACLARIS THERAPEUTICS INC 2.0%
Value ($000) $89,944 Shares 3,569,192 Est. Cost $10.01 Unrealized +95.4%
ISRG INTUITIVE SURGICAL INC 1.9%
Value ($000) $88,673 Shares 120,000 Est. Cost $105.96 Unrealized +137.4%
IDXX IDEXX LABS INC 1.9%
Value ($000) $88,076 Shares 180,000 Est. Cost $292.33 Unrealized +71.4%
HCA HCA HEALTHCARE INC 1.8%
Value ($000) $84,753 Shares 450,000 Est. Cost $96.26 Unrealized +75.5%
INVITAE CORP 1.8%
Value ($000) $84,596 Shares 2,213,977 Est. Cost $23.00 Unrealized
NVAX NOVAVAX INC 1.8%
Value ($000) $83,584 Shares 461,000 Est. Cost $40.40 Unrealized +393.2%
ARGX ARGENX SE 1.8%
Value ($000) $82,617 Shares 300,000 Est. Cost $127.14 Unrealized
FRPT FRESHPET INC 1.8%
Value ($000) $80,437 Shares 506,500 Est. Cost $50.14 Unrealized +200.8%
EXAS EXACT SCIENCES CORP 1.6%
Value ($000) $75,115 Shares 570,000 Est. Cost $56.53 Unrealized +142.1%
BLUEPRINT MEDICINES CORP 1.6%
Value ($000) $72,605 Shares 746,732 Est. Cost $69.72 Unrealized
PCRX PACIRA BIOSCIENCES INC 1.6%
Value ($000) $71,842 Shares 1,025,000 Est. Cost $48.35 Unrealized +47.7%
ONC BEIGENE LTD 1.5%
Value ($000) $69,616 Shares 200,000 Est. Cost $43.43 Unrealized
NEVRO CORP 1.5%
Value ($000) $67,658 Shares 485,000 Est. Cost $95.91 Unrealized
IRTC IRHYTHM TECHNOLOGIES INC 1.3%
Value ($000) $60,056 Shares 432,496 Est. Cost $54.86 Unrealized +226.7%
HORIZON THERAPEUTICS PUB L 1.3%
Value ($000) $57,525 Shares 625,000 Est. Cost $77.68 Unrealized
MIRATI THERAPEUTICS INC 1.2%
Value ($000) $55,441 Shares 323,647 Est. Cost $73.57 Unrealized
TFX TELEFLEX INCORPORATED 1.2%
Value ($000) $54,010 Shares 130,000 Est. Cost $242.14 Unrealized +60.1%
BOLT BIOTHERAPEUTICS INC 1.1%
Value ($000) $51,315 Shares 1,559,248 Est. Cost $32.91 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 1.1%
Value ($000) $51,237 Shares 450,000 Est. Cost $55.19 Unrealized +146.7%
EW EDWARDS LIFESCIENCES CORP 1.1%
Value ($000) $48,678 Shares 582,000 Est. Cost $59.31 Unrealized +42.5%
MERSANA THERAPEUTICS INC 1.0%
Value ($000) $44,902 Shares 2,775,127 Est. Cost $16.44 Unrealized
CGEM CULLINAN ONCOLOGY INC 1.0%
Value ($000) $44,833 Shares 1,075,912 Est. Cost $40.60 Unrealized 0.0%
KARUNA THERAPEUTICS INC 1.0%
Value ($000) $44,336 Shares 368,764 Est. Cost $66.05 Unrealized
PHR PHREESIA INC 1.0%
Value ($000) $44,285 Shares 850,000 Est. Cost $28.21 Unrealized +123.3%
EARGO INC 0.9%
Value ($000) $42,541 Shares 851,671 Est. Cost $44.82 Unrealized
ALNY ALNYLAM PHARMACEUTICALS INC 0.9%
Value ($000) $42,357 Shares 300,000 Est. Cost $85.91 Unrealized +75.2%
COVETRUS INC 0.9%
Value ($000) $41,958 Shares 1,400,000 Est. Cost $21.36 Unrealized
ARVN ARVINAS INC 0.9%
Value ($000) $41,101 Shares 621,800 Est. Cost $32.84 Unrealized +133.0%
EHC ENCOMPASS HEALTH CORP 0.9%
Value ($000) $40,950 Shares 500,000 Est. Cost $45.98 Unrealized +34.4%
ACHC ACADIA HEALTHCARE COMPANY IN 0.9%
Value ($000) $39,998 Shares 700,000 Est. Cost $44.80 Unrealized +20.8%
PEN PENUMBRA INC 0.9%
Value ($000) $39,911 Shares 147,500 Est. Cost $55.16 Unrealized +368.0%
TVTX TRAVERE THERAPEUTICS INC 0.8%
Value ($000) $36,845 Shares 1,475,564 Est. Cost $24.67 Unrealized +12.0%
HCAT HEALTH CATALYST INC 0.8%
Value ($000) $36,714 Shares 785,000 Est. Cost $33.94 Unrealized +42.7%
ALLAKOS INC 0.8%
Value ($000) $35,089 Shares 305,706 Est. Cost $73.38 Unrealized
SEAGEN INC 0.8%
Value ($000) $34,715 Shares 250,000 Est. Cost $175.14 Unrealized
ARDX ARDELYX INC 0.7%
Value ($000) $34,269 Shares 5,176,561 Est. Cost $7.05 Unrealized -2.7%
AZN ASTRAZENECA PLC 0.7%
Value ($000) $32,318 Shares 650,000 Est. Cost $49.72 Unrealized
BIIB BIOGEN INC 0.7%
Value ($000) $31,752 Shares 113,500 Est. Cost $299.45 Unrealized -9.9%
BSX BOSTON SCIENTIFIC CORP 0.7%
Value ($000) $30,920 Shares 800,000 Est. Cost $35.85 Unrealized +5.6%
GH GUARDANT HEALTH INC 0.7%
Value ($000) $30,530 Shares 200,000 Est. Cost $42.73 Unrealized +253.7%
MDGL MADRIGAL PHARMACEUTICALS INC 0.7%
Value ($000) $30,237 Shares 258,500 Est. Cost $40.26 Unrealized +189.6%
ASND ASCENDIS PHARMA A/S 0.7%
Value ($000) $30,093 Shares 233,500 Est. Cost $29.70 Unrealized
MIRM MIRUM PHARMACEUTICALS INC 0.6%
Value ($000) $29,785 Shares 1,502,800 Est. Cost $12.84 Unrealized +49.1%
EVH EVOLENT HEALTH INC 0.6%
Value ($000) $29,189 Shares 1,445,000 Est. Cost $19.02 Unrealized 0.0%
PRTA PROTHENA CORP PLC 0.6%
Value ($000) $29,061 Shares 1,156,900 Est. Cost $11.75 Unrealized +60.1%
SHOCKWAVE MED INC 0.6%
Value ($000) $28,657 Shares 220,000 Est. Cost $50.28 Unrealized
ACCOLADE INC 0.6%
Value ($000) $28,356 Shares 625,000 Est. Cost $41.47 Unrealized
ACAD ACADIA PHARMACEUTICALS INC 0.6%
Value ($000) $27,766 Shares 1,076,200 Est. Cost $41.60 Unrealized +5.8%
LUNG PULMONX CORP 0.6%
Value ($000) $27,101 Shares 592,500 Est. Cost $50.28 Unrealized +14.1%
SPRUCE BIOSCIENCES INC 0.6%
Value ($000) $26,216 Shares 1,579,301 Est. Cost $24.31 Unrealized
ADPT ADAPTIVE BIOTECHNOLOGIES COR 0.6%
Value ($000) $26,169 Shares 650,000 Est. Cost $43.96 Unrealized +23.1%
AMARIN CORP PLC 0.6%
Value ($000) $26,051 Shares 4,195,000 Est. Cost $4.95 Unrealized
PPD INC 0.6%
Value ($000) $25,542 Shares 675,000 Est. Cost $23.83 Unrealized
SRPT SAREPTA THERAPEUTICS INC 0.5%
Value ($000) $24,502 Shares 328,750 Est. Cost $54.43 Unrealized +69.5%
EPIZYME INC 0.5%
Value ($000) $24,414 Shares 2,802,954 Est. Cost $13.98 Unrealized
KYMR KYMERA THERAPEUTICS INC 0.5%
Value ($000) $24,162 Shares 621,777 Est. Cost $30.53 Unrealized +97.2%
NVCR NOVOCURE LTD 0.5%
Value ($000) $23,132 Shares 175,000 Est. Cost $37.58 Unrealized +320.9%
INTERSECT ENT INC 0.5%
Value ($000) $22,555 Shares 1,080,200 Est. Cost $23.15 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.5%
Value ($000) $21,804 Shares 920,000 Est. Cost $15.97 Unrealized +48.7%
INSP INSPIRE MED SYS INC 0.5%
Value ($000) $20,699 Shares 100,000 Est. Cost $74.71 Unrealized +184.5%
ABCAM PLC 0.4%
Value ($000) $20,551 Shares 1,069,236 Est. Cost $21.24 Unrealized
OAK STR HEALTH INC 0.4%
Value ($000) $20,351 Shares 375,000 Est. Cost $54.98 Unrealized
KURA KURA ONCOLOGY INC 0.4%
Value ($000) $20,073 Shares 710,035 Est. Cost $34.14 Unrealized -7.3%
BMRN BIOMARIN PHARMACEUTICAL INC 0.4%
Value ($000) $19,142 Shares 253,500 Est. Cost $85.83 Unrealized -4.8%
CYTOKINETICS INC 0.4%
Value ($000) $19,094 Shares 8,000,000 Est. Cost $1.32 Unrealized
RCKT ROCKET PHARMACEUTICALS INC 0.4%
Value ($000) $17,884 Shares 403,070 Est. Cost $36.45 Unrealized +50.6%
SIERRA ONCOLOGY INC 0.4%
Value ($000) $17,529 Shares 1,017,358 Est. Cost $16.56 Unrealized
GAMIDA CELL LTD 0.4%
Value ($000) $16,991 Shares 2,100,300 Est. Cost $4.95 Unrealized
INOZYME PHARMA INC 0.4%
Value ($000) $16,392 Shares 827,900 Est. Cost $26.29 Unrealized
PRLD PRELUDE THERAPEUTICS INC 0.4%
Value ($000) $16,387 Shares 378,195 Est. Cost $30.04 Unrealized +120.9%
DYNAVAX TECHNOLOGIES CORP 0.4%
Value ($000) $16,303 Shares 1,658,520 Est. Cost $6.77 Unrealized
RIGEL PHARMACEUTICALS INC 0.4%
Value ($000) $16,218 Shares 4,742,000 Est. Cost $2.87 Unrealized
NKTX NKARTA INC 0.4%
Value ($000) $16,182 Shares 491,848 Est. Cost $29.47 Unrealized +62.1%
MREO MEREO BIOPHARMA GROUP PLC 0.3%
Value ($000) $15,148 Shares 4,494,869 Est. Cost $3.37 Unrealized
AKERO THERAPEUTICS INC 0.3%
Value ($000) $15,119 Shares 521,171 Est. Cost $24.66 Unrealized
ESSA PHARMA INC 0.3%
Value ($000) $14,613 Shares 503,035 Est. Cost $29.05 Unrealized
ATHIRA PHARMA INC 0.3%
Value ($000) $14,503 Shares 788,202 Est. Cost $18.46 Unrealized
OLINK HLDG AB 0.3%
Value ($000) $14,400 Shares 400,000 Est. Cost $36.00 Unrealized
SPRO SPERO THERAPEUTICS INC 0.3%
Value ($000) $14,218 Shares 965,928 Est. Cost $11.82 Unrealized +48.9%
GOSSAMER BIO INC 0.3%
Value ($000) $13,977 Shares 15,573,000 Est. Cost $1.01 Unrealized
TBPH THERAVANCE BIOPHARMA INC 0.3%
Value ($000) $13,932 Shares 682,600 Est. Cost $21.11 Unrealized -10.0%
CEREVEL THERAPEUTICS HLDNG I 0.3%
Value ($000) $13,800 Shares 1,005,100 Est. Cost $16.58 Unrealized
APPLIED THERAPEUTICS INC 0.3%
Value ($000) $13,160 Shares 701,680 Est. Cost $31.74 Unrealized
TGTX TG THERAPEUTICS INC 0.3%
Value ($000) $12,846 Shares 266,520 Est. Cost $16.11 Unrealized +198.3%
RYTM RHYTHM PHARMACEUTICALS INC 0.3%
Value ($000) $12,747 Shares 599,280 Est. Cost $24.11 Unrealized +20.3%
GLPG GALAPAGOS NV 0.3%
Value ($000) $12,720 Shares 165,000 Est. Cost $55.87 Unrealized
MGNX MACROGENICS INC 0.3%
Value ($000) $12,532 Shares 393,479 Est. Cost $22.34 Unrealized +8.7%
AEGLEA BIOTHERAPEUTICS INC 0.3%
Value ($000) $12,492 Shares 1,577,296 Est. Cost $7.80 Unrealized
INNV INNOVAGE HLDG CORP 0.3%
Value ($000) $12,250 Shares 475,000 Est. Cost $24.64 Unrealized 0.0%
PARATEK PHARMACEUTICALS INC 0.3%
Value ($000) $11,894 Shares 1,684,714 Est. Cost $6.16 Unrealized
BAX BAXTER INTL INC 0.3%
Value ($000) $11,808 Shares 140,000 Est. Cost $64.04 Unrealized +11.6%
ANAB ANAPTYSBIO INC 0.3%
Value ($000) $11,534 Shares 535,232 Est. Cost $28.24 Unrealized -10.6%
STTK SHATTUCK LABS INC 0.2%
Value ($000) $11,360 Shares 388,499 Est. Cost $32.14 Unrealized +30.7%
CNMD CONMED CORP 0.2%
Value ($000) $11,111 Shares 85,085 Est. Cost $89.83 Unrealized +28.4%
TARA PROTARA THERAPEUTICS INC 0.2%
Value ($000) $10,860 Shares 689,942 Est. Cost $22.87 Unrealized -18.9%
FIBROGEN INC 0.2%
Value ($000) $10,853 Shares 312,687 Est. Cost $30.26 Unrealized
TRANSLATE BIO INC 0.2%
Value ($000) $10,717 Shares 649,900 Est. Cost $12.61 Unrealized
NGM BIOPHARMACEUTICALS INC 0.2%
Value ($000) $10,605 Shares 364,800 Est. Cost $14.90 Unrealized
PROMETHEUS BIOSCIENCES INC 0.2%
Value ($000) $10,497 Shares 574,858 Est. Cost $18.26 Unrealized
CGEN COMPUGEN LTD 0.2%
Value ($000) $10,475 Shares 1,219,488 Est. Cost $6.07 Unrealized +82.6%
CHINOOK THERAPEUTICS INC 0.2%
Value ($000) $10,459 Shares 673,049 Est. Cost $15.86 Unrealized
XENE XENON PHARMACEUTICALS INC 0.2%
Value ($000) $10,248 Shares 572,500 Est. Cost $14.47 Unrealized +17.1%
KINNATE BIOPHARMA INC 0.2%
Value ($000) $10,170 Shares 326,386 Est. Cost $39.78 Unrealized
FUSION PHARMACEUTICALS INC 0.2%
Value ($000) $10,166 Shares 948,327 Est. Cost $17.41 Unrealized
AUPH AURINIA PHARMACEUTICALS INC 0.2%
Value ($000) $10,149 Shares 781,569 Est. Cost $14.49 Unrealized +0.2%
FOLD AMICUS THERAPEUTICS INC 0.2%
Value ($000) $10,004 Shares 1,012,506 Est. Cost $11.49 Unrealized +34.7%
ORION ACQUISITION CORP 0.2%
Value ($000) $10,000 Shares 1,000,000 Est. Cost $10.00 Unrealized
DSGN DESIGN THERAPEUTICS INC 0.2%
Value ($000) $9,785 Shares 327,250 Est. Cost $31.14 Unrealized 0.0%
NRIX NURIX THERAPEUTICS INC 0.2%
Value ($000) $9,667 Shares 310,950 Est. Cost $27.38 Unrealized +38.2%
LEGN LEGEND BIOTECH CORP 0.2%
Value ($000) $9,072 Shares 312,618 Est. Cost $38.05 Unrealized
RLAY RELAY THERAPEUTICS INC 0.2%
Value ($000) $8,716 Shares 252,127 Est. Cost $38.13 Unrealized +13.8%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.2%
Value ($000) $8,204 Shares 1,545,000 Est. Cost $10.05 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.2%
Value ($000) $8,031 Shares 28,500 Est. Cost $96.51 Unrealized +193.0%
ATRECA INC 0.2%
Value ($000) $6,959 Shares 453,930 Est. Cost $13.97 Unrealized
CHIASMA INC 0.1%
Value ($000) $6,806 Shares 2,174,583 Est. Cost $7.90 Unrealized
TRILLIUM THERAPEUTICS INC 0.1%
Value ($000) $6,667 Shares 620,800 Est. Cost $4.22 Unrealized
ACELRX PHARMACEUTICALS INC 0.1%
Value ($000) $6,435 Shares 3,785,457 Est. Cost $1.42 Unrealized
FATE FATE THERAPEUTICS INC 0.1%
Value ($000) $5,772 Shares 70,000 Est. Cost $95.82 Unrealized 0.0%
CONSTELLATION PHARMCETICLS I 0.1%
Value ($000) $5,426 Shares 232,000 Est. Cost $37.77 Unrealized
DXCM DEXCOM INC 0.1%
Value ($000) $5,391 Shares 15,000 Est. Cost $93.87 Unrealized 0.0%
PHASEBIO PHARMACEUTICALS INC 0.1%
Value ($000) $5,377 Shares 1,553,974 Est. Cost $5.65 Unrealized
GRTX GALERA THERAPEUTICS INC 0.1%
Value ($000) $5,012 Shares 568,252 Est. Cost $12.01 Unrealized -8.6%
NUVB NUVATION BIO INC 0.1%
Value ($000) $4,202 Shares 402,088 Est. Cost $11.18 Unrealized 0.0%
RPRX ROYALTY PHARMA PLC 0.1%
Value ($000) $3,490 Shares 80,000 Est. Cost $49.50 Unrealized -4.2%
RETROPHIN INC 0.1%
Value ($000) $3,360 Shares 3,250,000 Est. Cost $0.79 Unrealized
BCLS ACQUISITION CORP 0.1%
Value ($000) $3,266 Shares 309,000 Est. Cost $11.14 Unrealized
POSEIDA THERAPEUTICS INC 0.1%
Value ($000) $2,767 Shares 289,754 Est. Cost $8.87 Unrealized
CONNECT BIOPHARMA HLDGS LTD 0.0%
Value ($000) $2,204 Shares 119,114 Est. Cost $18.50 Unrealized
LIFESCI ACQUISITION II CORP 0.0%
Value ($000) $2,091 Shares 206,200 Est. Cost $10.67 Unrealized
FS DEVELOPMENT CORP II 0.0%
Value ($000) $2,085 Shares 209,332 Est. Cost $9.96 Unrealized
EUCRATES BIOMEDICAL ACQU COR 0.0%
Value ($000) $2,063 Shares 206,000 Est. Cost $10.66 Unrealized
TURMERIC ACQUISITION CORP 0.0%
Value ($000) $2,060 Shares 206,000 Est. Cost $10.27 Unrealized
JIYA ACQUISITION CORP 0.0%
Value ($000) $2,029 Shares 206,200 Est. Cost $10.30 Unrealized
POPULATION HEALTH INVS CO IN 0.0%
Value ($000) $2,020 Shares 201,044 Est. Cost $10.45 Unrealized
MLTX HELIX ACQUISITION CORP 0.0%
Value ($000) $1,576 Shares 154,500 Est. Cost $11.37 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value ($000) $1,526 Shares 1,500,000 Est. Cost $1.14 Unrealized
RADIUS HEALTH INC 0.0%
Value ($000) $1,401 Shares 1,500,000 Est. Cost $1.01 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value ($000) $1,354 Shares 1,000,000 Est. Cost $1.45 Unrealized
PACIRA BIOSCIENCES INC 0.0%
Value ($000) $1,211 Shares 1,000,000 Est. Cost $0.91 Unrealized
NEVRO CORP 0.0%
Value ($000) $771 Shares 500,000 Est. Cost $1.37 Unrealized
NUVATION BIO INC 0.0%
Value ($000) $358 Shares 134,028 Est. Cost $2.67 Unrealized