Rock Springs Capital Management LP Diversified Active

CIK: 0001595725 · Show all filings

Period: Q4 2021 (← Previous) (Next →)

Filing Date: Feb 14, 2022

Total Value ($000): $4,328,231 (98.6% shares, 1.4% debt)

Holdings (136)

AGL AGILON HEALTH INC 4.7%
Value ($000) $202,365 Shares 7,495,000 Est. Cost $34.43 Unrealized -29.3%
HUM HUMANA INC 3.7%
Value ($000) $161,887 Shares 349,000 Est. Cost $348.05 Unrealized +22.1%
ALGN ALIGN TECHNOLOGY INC 3.0%
Value ($000) $131,436 Shares 200,000 Est. Cost $304.27 Unrealized +111.3%
ISRG INTUITIVE SURGICAL INC 3.0%
Value ($000) $129,348 Shares 360,000 Est. Cost $264.69 Unrealized +30.0%
PODD INSULET CORP 2.9%
Value ($000) $123,390 Shares 463,750 Est. Cost $169.26 Unrealized +71.4%
UNH UNITEDHEALTH GROUP INC 2.8%
Value ($000) $120,514 Shares 240,000 Est. Cost $189.39 Unrealized +122.9%
IDXX IDEXX LABS INC 2.7%
Value ($000) $118,523 Shares 180,000 Est. Cost $292.33 Unrealized +114.7%
HCA HCA HEALTHCARE INC 2.7%
Value ($000) $115,614 Shares 450,000 Est. Cost $96.26 Unrealized +145.2%
ARGX ARGENX SE 2.5%
Value ($000) $110,310 Shares 315,000 Est. Cost $135.42 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 2.2%
Value ($000) $94,113 Shares 1,105,000 Est. Cost $74.69 Unrealized +23.2%
BLUEPRINT MEDICINES CORP 2.1%
Value ($000) $92,088 Shares 859,755 Est. Cost $73.05 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 2.0%
Value ($000) $86,995 Shares 2,646,625 Est. Cost $42.81 Unrealized -6.0%
IMCR IMMUNOCORE HLDGS PLC 2.0%
Value ($000) $84,626 Shares 2,471,555 Est. Cost $42.22 Unrealized
HORIZON THERAPEUTICS PUB L 1.9%
Value ($000) $80,389 Shares 746,000 Est. Cost $82.74 Unrealized
EW EDWARDS LIFESCIENCES CORP 1.7%
Value ($000) $75,398 Shares 582,000 Est. Cost $59.31 Unrealized +96.7%
RARE ULTRAGENYX PHARMACEUTICAL IN 1.7%
Value ($000) $74,329 Shares 883,921 Est. Cost $71.86 Unrealized +13.2%
ZLAB ZAI LAB LTD 1.7%
Value ($000) $74,207 Shares 1,180,700 Est. Cost $62.03 Unrealized
BAX BAXTER INTL INC 1.5%
Value ($000) $62,990 Shares 733,803 Est. Cost $72.19 Unrealized +1.4%
NVAX NOVAVAX INC 1.4%
Value ($000) $60,805 Shares 425,000 Est. Cost $40.40 Unrealized +325.3%
MIRATI THERAPEUTICS INC 1.4%
Value ($000) $60,204 Shares 410,415 Est. Cost $92.37 Unrealized
PCRX PACIRA BIOSCIENCES INC 1.4%
Value ($000) $60,170 Shares 1,000,000 Est. Cost $48.35 Unrealized +14.0%
NEVRO CORP 1.3%
Value ($000) $57,884 Shares 714,000 Est. Cost $101.78 Unrealized
EVH EVOLENT HEALTH INC 1.3%
Value ($000) $56,391 Shares 2,038,000 Est. Cost $20.35 Unrealized +41.0%
ALNY ALNYLAM PHARMACEUTICALS INC 1.3%
Value ($000) $56,385 Shares 332,500 Est. Cost $95.74 Unrealized +94.1%
ACRS ACLARIS THERAPEUTICS INC 1.3%
Value ($000) $56,144 Shares 3,861,347 Est. Cost $10.79 Unrealized +40.5%
KARUNA THERAPEUTICS INC 1.3%
Value ($000) $55,916 Shares 426,843 Est. Cost $74.07 Unrealized
FRPT FRESHPET INC 1.3%
Value ($000) $55,257 Shares 580,000 Est. Cost $60.18 Unrealized +106.1%
ASND ASCENDIS PHARMA A/S 1.2%
Value ($000) $53,812 Shares 400,000 Est. Cost $83.68 Unrealized
CEREVEL THERAPEUTICS HLDNG I 1.2%
Value ($000) $53,442 Shares 1,648,435 Est. Cost $21.68 Unrealized
IRTC IRHYTHM TECHNOLOGIES INC 1.2%
Value ($000) $50,960 Shares 433,000 Est. Cost $55.70 Unrealized +64.7%
KYMR KYMERA THERAPEUTICS INC 1.1%
Value ($000) $47,114 Shares 742,065 Est. Cost $34.80 Unrealized +67.4%
ACHC ACADIA HEALTHCARE COMPANY IN 1.0%
Value ($000) $45,434 Shares 748,500 Est. Cost $45.81 Unrealized +30.2%
EXAS EXACT SCIENCES CORP 1.0%
Value ($000) $44,363 Shares 570,000 Est. Cost $56.53 Unrealized +56.1%
INVITAE CORP 1.0%
Value ($000) $42,760 Shares 2,800,243 Est. Cost $23.39 Unrealized
PEN PENUMBRA INC 1.0%
Value ($000) $42,667 Shares 148,500 Est. Cost $55.16 Unrealized +379.3%
SHOCKWAVE MED INC 0.9%
Value ($000) $39,678 Shares 222,500 Est. Cost $51.72 Unrealized
SEAGEN INC 0.9%
Value ($000) $39,578 Shares 256,000 Est. Cost $174.66 Unrealized
SRPT SAREPTA THERAPEUTICS INC 0.9%
Value ($000) $38,181 Shares 424,000 Est. Cost $60.98 Unrealized +40.2%
ARVN ARVINAS INC 0.9%
Value ($000) $37,554 Shares 457,200 Est. Cost $32.84 Unrealized +147.8%
CYTOKINETICS INC 0.8%
Value ($000) $35,665 Shares 8,000,000 Est. Cost $1.32 Unrealized
WRBY WARBY PARKER INC 0.8%
Value ($000) $33,709 Shares 724,000 Est. Cost $53.59 Unrealized -2.9%
HCAT HEALTH CATALYST INC 0.8%
Value ($000) $33,685 Shares 850,200 Est. Cost $35.51 Unrealized +28.3%
VERVE THERAPEUTICS INC 0.8%
Value ($000) $33,291 Shares 902,926 Est. Cost $60.25 Unrealized
COVETRUS INC 0.8%
Value ($000) $33,184 Shares 1,661,700 Est. Cost $21.18 Unrealized
EHC ENCOMPASS HEALTH CORP 0.8%
Value ($000) $32,793 Shares 502,500 Est. Cost $45.98 Unrealized +7.5%
PHR PHREESIA INC 0.7%
Value ($000) $32,078 Shares 770,000 Est. Cost $31.31 Unrealized +89.7%
PRTA PROTHENA CORP PLC 0.7%
Value ($000) $31,998 Shares 647,730 Est. Cost $11.75 Unrealized +372.0%
ACCOLADE INC 0.7%
Value ($000) $31,553 Shares 1,197,000 Est. Cost $38.59 Unrealized
DXCM DEXCOM INC 0.7%
Value ($000) $30,472 Shares 56,750 Est. Cost $104.55 Unrealized +37.4%
TVTX TRAVERE THERAPEUTICS INC 0.7%
Value ($000) $29,539 Shares 951,650 Est. Cost $24.60 Unrealized +14.5%
ABCAM PLC 0.7%
Value ($000) $29,496 Shares 1,252,500 Est. Cost $21.34 Unrealized
CNMD CONMED CORP 0.7%
Value ($000) $28,706 Shares 202,500 Est. Cost $114.93 Unrealized +18.7%
GRAPHITE BIO INC 0.6%
Value ($000) $25,841 Shares 2,078,910 Est. Cost $30.73 Unrealized
SIERRA ONCOLOGY INC 0.6%
Value ($000) $25,757 Shares 1,184,793 Est. Cost $17.77 Unrealized
INTERSECT ENT INC 0.6%
Value ($000) $25,671 Shares 940,000 Est. Cost $22.46 Unrealized
MIRM MIRUM PHARMACEUTICALS INC 0.6%
Value ($000) $24,544 Shares 1,538,814 Est. Cost $12.91 Unrealized +20.5%
PROMETHEUS BIOSCIENCES INC 0.6%
Value ($000) $24,452 Shares 618,407 Est. Cost $18.88 Unrealized
XENE XENON PHARMACEUTICALS INC 0.6%
Value ($000) $24,098 Shares 771,367 Est. Cost $18.27 Unrealized +63.5%
BMRN BIOMARIN PHARMACEUTICAL INC 0.5%
Value ($000) $23,324 Shares 264,000 Est. Cost $85.70 Unrealized -3.7%
MDGL MADRIGAL PHARMACEUTICALS INC 0.5%
Value ($000) $22,829 Shares 269,400 Est. Cost $42.50 Unrealized +93.3%
LUNG PULMONX CORP 0.5%
Value ($000) $22,449 Shares 700,000 Est. Cost $48.60 Unrealized -24.9%
DYNAVAX TECHNOLOGIES CORP 0.5%
Value ($000) $22,187 Shares 1,576,894 Est. Cost $7.49 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 0.5%
Value ($000) $21,340 Shares 45,500 Est. Cost $219.29 Unrealized +94.2%
MERSANA THERAPEUTICS INC 0.5%
Value ($000) $20,208 Shares 3,248,950 Est. Cost $15.28 Unrealized
GH GUARDANT HEALTH INC 0.5%
Value ($000) $20,004 Shares 200,000 Est. Cost $42.73 Unrealized +142.1%
XLO XILIO THERAPEUTICS INC 0.4%
Value ($000) $19,058 Shares 1,191,094 Est. Cost $17.03 Unrealized 0.0%
LFST LIFESTANCE HEALTH GROUP INC 0.4%
Value ($000) $19,040 Shares 2,000,000 Est. Cost $23.27 Unrealized -54.4%
LEGN LEGEND BIOTECH CORP 0.4%
Value ($000) $18,811 Shares 403,584 Est. Cost $39.93 Unrealized
ANAB ANAPTYSBIO INC 0.4%
Value ($000) $18,720 Shares 538,700 Est. Cost $28.24 Unrealized +12.3%
RLAY RELAY THERAPEUTICS INC 0.4%
Value ($000) $18,357 Shares 597,767 Est. Cost $34.87 Unrealized -9.4%
IMRX IMMUNEERING CORP 0.4%
Value ($000) $17,622 Shares 1,089,816 Est. Cost $26.87 Unrealized -9.4%
AURA AURA BIOSCIENCES INC 0.4%
Value ($000) $17,118 Shares 1,008,114 Est. Cost $17.87 Unrealized 0.0%
CMPX COMPASS THERAPEUTICS INC 0.4%
Value ($000) $16,890 Shares 5,328,088 Est. Cost $3.29 Unrealized 0.0%
ICOSAVAX INC 0.4%
Value ($000) $16,828 Shares 735,504 Est. Cost $29.59 Unrealized
SPRO SPERO THERAPEUTICS INC 0.3%
Value ($000) $15,134 Shares 945,313 Est. Cost $11.82 Unrealized +34.4%
GOSSAMER BIO INC 0.3%
Value ($000) $15,066 Shares 15,373,000 Est. Cost $1.01 Unrealized
AMARIN CORP PLC 0.3%
Value ($000) $14,894 Shares 4,419,700 Est. Cost $4.90 Unrealized
AMRYT PHARMA PLC 0.3%
Value ($000) $14,103 Shares 1,305,825 Est. Cost $12.05 Unrealized
MGNX MACROGENICS INC 0.3%
Value ($000) $13,758 Shares 857,205 Est. Cost $22.34 Unrealized -15.7%
COLL COLLEGIUM PHARMACEUTICAL INC 0.3%
Value ($000) $13,543 Shares 725,000 Est. Cost $15.97 Unrealized +22.1%
NVCR NOVOCURE LTD 0.3%
Value ($000) $13,139 Shares 175,000 Est. Cost $37.58 Unrealized +167.1%
WHWK AADI BIOSCIENCE INC 0.3%
Value ($000) $13,013 Shares 538,835 Est. Cost $30.48 Unrealized -17.6%
RIGEL PHARMACEUTICALS INC 0.3%
Value ($000) $12,880 Shares 4,860,200 Est. Cost $2.87 Unrealized
AKERO THERAPEUTICS INC 0.3%
Value ($000) $12,417 Shares 587,101 Est. Cost $24.39 Unrealized
CHINOOK THERAPEUTICS INC 0.3%
Value ($000) $11,749 Shares 720,349 Est. Cost $15.86 Unrealized
FOLD AMICUS THERAPEUTICS INC 0.3%
Value ($000) $11,694 Shares 1,012,506 Est. Cost $11.49 Unrealized -3.0%
LEAP THERAPEUTICS INC 0.3%
Value ($000) $11,407 Shares 3,520,570 Est. Cost $4.01 Unrealized
ABOS ACUMEN PHARMACEUTICALS INC 0.2%
Value ($000) $10,626 Shares 1,571,918 Est. Cost $16.64 Unrealized -33.9%
AUPH AURINIA PHARMACEUTICALS INC 0.2%
Value ($000) $10,456 Shares 457,173 Est. Cost $14.49 Unrealized +63.6%
CGEM CULLINAN ONCOLOGY INC 0.2%
Value ($000) $9,969 Shares 646,078 Est. Cost $40.60 Unrealized -50.9%
ORION ACQUISITION CORP 0.2%
Value ($000) $9,850 Shares 1,000,000 Est. Cost $10.00 Unrealized
RENEO PHARMACEUTICALS INC 0.2%
Value ($000) $9,774 Shares 1,143,185 Est. Cost $9.31 Unrealized
EPIZYME INC 0.2%
Value ($000) $9,519 Shares 3,807,662 Est. Cost $11.67 Unrealized
OLINK HLDG AB 0.2%
Value ($000) $9,373 Shares 515,000 Est. Cost $33.75 Unrealized
NRIX NURIX THERAPEUTICS INC 0.2%
Value ($000) $9,294 Shares 321,050 Est. Cost $27.41 Unrealized +10.6%
MREO MEREO BIOPHARMA GROUP PLC 0.2%
Value ($000) $8,937 Shares 5,585,621 Est. Cost $3.08 Unrealized
BMEA BIOMEA FUSION INC 0.2%
Value ($000) $8,684 Shares 1,165,582 Est. Cost $17.65 Unrealized -40.1%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.2%
Value ($000) $8,308 Shares 2,215,588 Est. Cost $8.55 Unrealized
VINCERX PHARMA INC 0.2%
Value ($000) $8,246 Shares 809,195 Est. Cost $16.10 Unrealized
FULC FULCRUM THERAPEUTICS INC 0.2%
Value ($000) $8,084 Shares 456,990 Est. Cost $18.95 Unrealized +4.5%
NKTX NKARTA INC 0.2%
Value ($000) $7,786 Shares 507,248 Est. Cost $29.49 Unrealized -41.8%
PARATEK PHARMACEUTICALS INC 0.2%
Value ($000) $7,620 Shares 1,697,105 Est. Cost $6.13 Unrealized
AEGLEA BIOTHERAPEUTICS INC 0.2%
Value ($000) $7,492 Shares 1,577,296 Est. Cost $7.80 Unrealized
ESSA PHARMA INC 0.2%
Value ($000) $7,257 Shares 511,044 Est. Cost $29.05 Unrealized
SPRUCE BIOSCIENCES INC 0.2%
Value ($000) $7,237 Shares 1,622,689 Est. Cost $24.10 Unrealized
ATHIRA PHARMA INC 0.2%
Value ($000) $7,196 Shares 552,252 Est. Cost $18.46 Unrealized
DSGN DESIGN THERAPEUTICS INC 0.2%
Value ($000) $7,178 Shares 335,247 Est. Cost $31.06 Unrealized -44.7%
PHASEBIO PHARMACEUTICALS INC 0.2%
Value ($000) $6,737 Shares 2,581,299 Est. Cost $4.57 Unrealized
FATE FATE THERAPEUTICS INC 0.1%
Value ($000) $6,436 Shares 110,000 Est. Cost $89.50 Unrealized -36.7%
DAWN DAY ONE BIOPHARMACEUTICALS I 0.1%
Value ($000) $6,436 Shares 381,939 Est. Cost $20.76 Unrealized -1.0%
APPLIED THERAPEUTICS INC 0.1%
Value ($000) $6,280 Shares 701,680 Est. Cost $31.74 Unrealized
RYTM RHYTHM PHARMACEUTICALS INC 0.1%
Value ($000) $6,259 Shares 627,180 Est. Cost $23.76 Unrealized -52.7%
KINNATE BIOPHARMA INC 0.1%
Value ($000) $6,022 Shares 339,846 Est. Cost $39.08 Unrealized
INOZYME PHARMA INC 0.1%
Value ($000) $5,923 Shares 868,466 Est. Cost $25.58 Unrealized
CGEN COMPUGEN LTD 0.1%
Value ($000) $5,547 Shares 1,289,990 Est. Cost $6.12 Unrealized -11.7%
THESEUS PHARMACEUTICALS INC 0.1%
Value ($000) $5,545 Shares 437,329 Est. Cost $12.68 Unrealized
GAMIDA CELL LTD 0.1%
Value ($000) $5,472 Shares 2,154,300 Est. Cost $4.94 Unrealized
PRLD PRELUDE THERAPEUTICS INC 0.1%
Value ($000) $4,594 Shares 368,959 Est. Cost $29.85 Unrealized -45.5%
EDAP EDAP TMS S A 0.1%
Value ($000) $4,558 Shares 760,900 Est. Cost $7.09 Unrealized
TEMPEST THERAPEUTICS INC 0.1%
Value ($000) $4,349 Shares 823,654 Est. Cost $7.50 Unrealized
FUSION PHARMACEUTICALS INC 0.1%
Value ($000) $3,955 Shares 948,327 Est. Cost $17.41 Unrealized
F-STAR THERAPEUTICS INC 0.1%
Value ($000) $3,774 Shares 751,889 Est. Cost $8.59 Unrealized
TRAVERE THERAPEUTICS INC 0.1%
Value ($000) $3,589 Shares 3,250,000 Est. Cost $0.79 Unrealized
ACELRX PHARMACEUTICALS INC 0.1%
Value ($000) $3,544 Shares 6,325,902 Est. Cost $1.08 Unrealized
BCLS ACQUISITION CORP 0.1%
Value ($000) $3,028 Shares 309,000 Est. Cost $11.14 Unrealized
STTK SHATTUCK LABS INC 0.1%
Value ($000) $2,668 Shares 313,499 Est. Cost $32.14 Unrealized -57.1%
JIYA ACQUISITION CORP 0.0%
Value ($000) $2,015 Shares 206,200 Est. Cost $10.30 Unrealized
POSEIDA THERAPEUTICS INC 0.0%
Value ($000) $1,973 Shares 289,754 Est. Cost $8.87 Unrealized
IMARA INC 0.0%
Value ($000) $1,895 Shares 842,302 Est. Cost $4.05 Unrealized
RADIUS HEALTH INC 0.0%
Value ($000) $1,459 Shares 1,500,000 Est. Cost $1.01 Unrealized
THERAVANCE BIOPHARMA INC 0.0%
Value ($000) $1,456 Shares 1,500,000 Est. Cost $1.14 Unrealized
ATRECA INC 0.0%
Value ($000) $1,401 Shares 462,530 Est. Cost $13.90 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value ($000) $1,257 Shares 1,000,000 Est. Cost $1.45 Unrealized
PACIRA BIOSCIENCES INC 0.0%
Value ($000) $1,029 Shares 1,000,000 Est. Cost $0.91 Unrealized
NEVRO CORP 0.0%
Value ($000) $556 Shares 500,000 Est. Cost $1.37 Unrealized
NUVATION BIO INC 0.0%
Value ($000) $253 Shares 134,028 Est. Cost $2.67 Unrealized