Rock Springs Capital Management LP Diversified Active

Location: Baltimore, MD

CIK: 0001595725 · Show all filings

Period: Q4 2023 (← Previous) (Next →)

Filing Date: Feb 14, 2024

Total Value: $4.062B (99.8% shares, 0.2% debt)

Holdings (104)

BLUEPRINT MEDICINES CORP 6.5%
Value $266M Shares 2,881,567 Est. Cost $63.00 Unrealized
IMCR IMMUNOCORE HLDGS PLC 4.5%
Value $182M Shares 2,661,507 Est. Cost $42.88 Unrealized
KARUNA THERAPEUTICS INC 4.0%
Value $163M Shares 515,024 Est. Cost $98.88 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 3.9%
Value $158M Shares 1,196,000 Est. Cost $78.19 Unrealized +47.2%
HUM HUMANA INC 3.5%
Value $142M Shares 310,000 Est. Cost $373.18 Unrealized +28.6%
PEN PENUMBRA INC 3.3%
Value $135M Shares 537,500 Est. Cost $179.03 Unrealized +23.5%
EVH EVOLENT HEALTH INC 3.2%
Value $131M Shares 3,960,000 Est. Cost $25.06 Unrealized +12.9%
UNH UNITEDHEALTH GROUP INC 3.0%
Value $121M Shares 230,000 Est. Cost $219.29 Unrealized +133.2%
CEREVEL THERAPEUTICS HLDNG I 2.8%
Value $113M Shares 2,674,245 Est. Cost $25.08 Unrealized
AGL AGILON HEALTH INC 2.7%
Value $108M Shares 8,630,000 Est. Cost $32.63 Unrealized -55.6%
ISRG INTUITIVE SURGICAL INC 2.5%
Value $101M Shares 298,500 Est. Cost $264.69 Unrealized +12.6%
IDXX IDEXX LABS INC 2.4%
Value $99.49M Shares 179,250 Est. Cost $335.38 Unrealized +40.0%
PODD INSULET CORP 2.3%
Value $93.68M Shares 431,750 Est. Cost $183.83 Unrealized -6.7%
ARGX ARGENX SE 2.1%
Value $87.21M Shares 229,250 Est. Cost $153.41 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 2.1%
Value $83.88M Shares 1,754,038 Est. Cost $59.90 Unrealized -35.3%
ACHC ACADIA HEALTHCARE COMPANY IN 2.1%
Value $83.48M Shares 1,073,500 Est. Cost $54.69 Unrealized +35.3%
EXAS EXACT SCIENCES CORP 1.9%
Value $75.42M Shares 1,019,500 Est. Cost $54.17 Unrealized +21.0%
DXCM DEXCOM INC 1.8%
Value $73.96M Shares 596,000 Est. Cost $97.36 Unrealized +4.9%
BSX BOSTON SCIENTIFIC CORP 1.8%
Value $71.25M Shares 1,232,500 Est. Cost $52.45 Unrealized +1.8%
RYTM RHYTHM PHARMACEUTICALS INC 1.7%
Value $70.01M Shares 1,522,893 Est. Cost $15.80 Unrealized +99.7%
ALGN ALIGN TECHNOLOGY INC 1.5%
Value $60.28M Shares 220,000 Est. Cost $312.87 Unrealized -24.2%
XENE XENON PHARMACEUTICALS INC 1.4%
Value $57.83M Shares 1,255,577 Est. Cost $23.42 Unrealized +50.9%
FRPT FRESHPET INC 1.4%
Value $57.48M Shares 662,500 Est. Cost $60.72 Unrealized +12.8%
MIRM MIRUM PHARMACEUTICALS INC 1.3%
Value $54.66M Shares 1,851,464 Est. Cost $14.67 Unrealized +106.4%
PHR PHREESIA INC 1.3%
Value $51.09M Shares 2,206,700 Est. Cost $26.10 Unrealized -33.9%
EW EDWARDS LIFESCIENCES CORP 1.2%
Value $49.36M Shares 647,300 Est. Cost $62.58 Unrealized +11.2%
MIRATI THERAPEUTICS INC 1.2%
Value $49.1M Shares 835,776 Est. Cost $69.12 Unrealized
WST WEST PHARMACEUTICAL SVSC INC 1.2%
Value $48.33M Shares 137,250 Est. Cost $294.97 Unrealized +19.3%
AGIO AGIOS PHARMACEUTICALS INC 1.2%
Value $47.93M Shares 2,152,173 Est. Cost $40.40 Unrealized -44.5%
MDGL MADRIGAL PHARMACEUTICALS INC 1.1%
Value $45.85M Shares 198,169 Est. Cost $51.77 Unrealized +238.0%
ALNY ALNYLAM PHARMACEUTICALS INC 1.1%
Value $44.98M Shares 235,000 Est. Cost $99.88 Unrealized +70.5%
OLINK HLDG AB 1.0%
Value $42.16M Shares 1,676,500 Est. Cost $22.11 Unrealized
ACCOLADE INC 1.0%
Value $41.85M Shares 3,485,000 Est. Cost $19.90 Unrealized
IMVT IMMUNOVANT INC 1.0%
Value $41.43M Shares 983,301 Est. Cost $27.50 Unrealized +33.8%
LLY ELI LILLY & CO 1.0%
Value $40.51M Shares 69,500 Est. Cost $575.10 Unrealized 0.0%
KYMR KYMERA THERAPEUTICS INC 1.0%
Value $38.76M Shares 1,522,238 Est. Cost $30.84 Unrealized -42.0%
CLDX CELLDEX THERAPEUTICS INC NEW 0.9%
Value $38.46M Shares 969,646 Est. Cost $29.84 Unrealized -1.4%
IRTC IRHYTHM TECHNOLOGIES INC 0.9%
Value $37.54M Shares 350,750 Est. Cost $69.45 Unrealized +25.5%
ASND ASCENDIS PHARMA A/S 0.9%
Value $36.53M Shares 290,000 Est. Cost $85.24 Unrealized
PCRX PACIRA BIOSCIENCES INC 0.9%
Value $35.61M Shares 1,055,500 Est. Cost $48.41 Unrealized -39.6%
LFST LIFESTANCE HEALTH GROUP INC 0.9%
Value $35.51M Shares 4,535,000 Est. Cost $14.07 Unrealized -54.2%
AZTA AZENTA INC 0.8%
Value $33.06M Shares 507,500 Est. Cost $60.88 Unrealized -10.9%
SRPT SAREPTA THERAPEUTICS INC 0.8%
Value $31.59M Shares 327,600 Est. Cost $62.74 Unrealized +52.9%
ZLAB ZAI LAB LTD 0.8%
Value $31.07M Shares 1,137,023 Est. Cost $56.75 Unrealized
LEGN LEGEND BIOTECH CORP 0.7%
Value $29.63M Shares 492,444 Est. Cost $41.58 Unrealized
WRBY WARBY PARKER INC 0.7%
Value $28.6M Shares 2,028,300 Est. Cost $29.94 Unrealized -58.4%
AKERO THERAPEUTICS INC 0.6%
Value $25.24M Shares 1,081,064 Est. Cost $30.42 Unrealized
TVTX TRAVERE THERAPEUTICS INC 0.6%
Value $24.92M Shares 2,771,446 Est. Cost $16.55 Unrealized -56.0%
MERUS N V 0.6%
Value $23.98M Shares 872,069 Est. Cost $25.24 Unrealized
DYNAVAX TECHNOLOGIES CORP 0.6%
Value $23.42M Shares 1,675,474 Est. Cost $7.97 Unrealized
SHOCKWAVE MED INC 0.6%
Value $22.87M Shares 120,000 Est. Cost $106.01 Unrealized
PRTA PROTHENA CORP PLC 0.6%
Value $22.71M Shares 625,048 Est. Cost $17.63 Unrealized +118.3%
IMMUNOGEN INC 0.6%
Value $22.52M Shares 759,365 Est. Cost $16.31 Unrealized
NEVRO CORP 0.5%
Value $22.06M Shares 1,025,000 Est. Cost $75.15 Unrealized
AMGN AMGEN INC 0.5%
Value $21.46M Shares 74,500 Est. Cost $233.89 Unrealized +9.1%
IRON DISC MEDICINE INC 0.5%
Value $20.99M Shares 363,468 Est. Cost $47.82 Unrealized +7.1%
RVMD REVOLUTION MEDICINES INC 0.5%
Value $20.8M Shares 725,152 Est. Cost $24.78 Unrealized -3.0%
INSP INSPIRE MED SYS INC 0.5%
Value $20.14M Shares 99,000 Est. Cost $202.55 Unrealized -20.0%
IMTX IMMATICS N.V 0.5%
Value $19.75M Shares 1,875,466 Est. Cost $9.14 Unrealized +0.7%
BCRX BIOCRYST PHARMACEUTICALS INC 0.5%
Value $19.59M Shares 3,270,381 Est. Cost $9.38 Unrealized -38.2%
MREO MEREO BIOPHARMA GROUP PLC 0.5%
Value $18.44M Shares 7,983,851 Est. Cost $2.57 Unrealized
COLL COLLEGIUM PHARMACEUTICAL INC 0.4%
Value $17.3M Shares 562,000 Est. Cost $15.97 Unrealized +56.8%
INOZYME PHARMA INC 0.4%
Value $15.68M Shares 3,681,174 Est. Cost $9.28 Unrealized
FOLD AMICUS THERAPEUTICS INC 0.4%
Value $15.1M Shares 1,063,806 Est. Cost $11.48 Unrealized -1.1%
BMRN BIOMARIN PHARMACEUTICAL INC 0.4%
Value $14.35M Shares 148,832 Est. Cost $85.70 Unrealized +3.2%
ICOSAVAX INC 0.3%
Value $13.69M Shares 868,409 Est. Cost $26.02 Unrealized
KRYS KRYSTAL BIOTECH INC 0.3%
Value $12.9M Shares 103,969 Est. Cost $113.89 Unrealized -2.6%
GPCR STRUCTURE THERAPEUTICS INC 0.3%
Value $11.68M Shares 286,676 Est. Cost $40.76 Unrealized
INHIBRX INC 0.3%
Value $11.45M Shares 301,400 Est. Cost Unrealized
MGNX MACROGENICS INC 0.3%
Value $11.34M Shares 1,178,796 Est. Cost $16.87 Unrealized -59.0%
MLYS MINERALYS THERAPEUTICS INC 0.2%
Value $10.04M Shares 1,167,492 Est. Cost $16.83 Unrealized -53.4%
ABOS ACUMEN PHARMACEUTICALS INC 0.2%
Value $8.832M Shares 2,300,059 Est. Cost $6.18 Unrealized -52.0%
CMPX COMPASS THERAPEUTICS INC 0.2%
Value $8.602M Shares 5,513,788 Est. Cost $3.31 Unrealized -47.7%
LUNG PULMONX CORP 0.2%
Value $8.318M Shares 652,400 Est. Cost $45.31 Unrealized -77.0%
AMLX AMYLYX PHARMACEUTICALS INC 0.2%
Value $7.875M Shares 535,012 Est. Cost $31.47 Unrealized -51.3%
SPRUCE BIOSCIENCES INC 0.2%
Value $7.645M Shares 2,609,125 Est. Cost $15.23 Unrealized
RLAY RELAY THERAPEUTICS INC 0.2%
Value $7.42M Shares 673,966 Est. Cost $33.24 Unrealized -74.6%
EDAP EDAP TMS S A 0.2%
Value $7.32M Shares 1,386,425 Est. Cost $7.62 Unrealized
MERSANA THERAPEUTICS INC 0.2%
Value $7.069M Shares 3,046,782 Est. Cost $13.04 Unrealized
PLRX PLIANT THERAPEUTICS INC 0.2%
Value $6.972M Shares 384,996 Est. Cost $28.47 Unrealized -46.6%
OSCR OSCAR HEALTH INC 0.2%
Value $6.725M Shares 735,000 Est. Cost $6.90 Unrealized 0.0%
FULC FULCRUM THERAPEUTICS INC 0.1%
Value $4.912M Shares 727,673 Est. Cost $14.24 Unrealized -68.8%
ESSA PHARMA INC 0.1%
Value $4.468M Shares 677,005 Est. Cost $22.67 Unrealized
SGMT SAGIMET BIOSCIENCES INC 0.1%
Value $4.002M Shares 738,355 Est. Cost $13.31 Unrealized -64.6%
AUPH AURINIA PHARMACEUTICALS INC 0.1%
Value $3.709M Shares 412,570 Est. Cost $13.26 Unrealized -37.9%
GOSSAMER BIO INC 0.1%
Value $3.488M Shares 9,573,000 Est. Cost $1.01 Unrealized
CYPH LEAP THERAPEUTICS INC 0.1%
Value $3.453M Shares 832,937 Est. Cost $5.02 Unrealized -56.9%
ACRS ACLARIS THERAPEUTICS INC 0.1%
Value $3.148M Shares 2,998,495 Est. Cost $10.84 Unrealized -71.9%
BEAM BEAM THERAPEUTICS INC 0.1%
Value $3.033M Shares 111,430 Est. Cost $39.75 Unrealized -37.5%
APPLIED THERAPEUTICS INC 0.1%
Value $2.999M Shares 895,195 Est. Cost $21.73 Unrealized
GOSS GOSSAMER BIO INC 0.1%
Value $2.981M Shares 3,266,960 Est. Cost $2.62 Unrealized -71.8%
TRAVERE THERAPEUTICS INC 0.1%
Value $2.768M Shares 3,250,000 Est. Cost $0.79 Unrealized
BMEA BIOMEA FUSION INC 0.1%
Value $2.63M Shares 181,147 Est. Cost $15.37 Unrealized -21.0%
NVAX NOVAVAX INC 0.1%
Value $2.581M Shares 537,625 Est. Cost $37.34 Unrealized -83.6%
CGEN COMPUGEN LTD 0.1%
Value $2.554M Shares 1,289,990 Est. Cost $6.12 Unrealized -85.7%
ADAPY ADAPTIMMUNE THERAPEUTICS PLC 0.0%
Value $1.923M Shares 2,425,468 Est. Cost $7.10 Unrealized
NEUROCRINE BIOSCIENCES INC 0.0%
Value $1.753M Shares 1,000,000 Est. Cost $1.45 Unrealized
VIGIL NEUROSCIENCE INC 0.0%
Value $1.595M Shares 471,958 Est. Cost $7.03 Unrealized
RENEO PHARMACEUTICALS INC 0.0%
Value $1.203M Shares 751,730 Est. Cost $9.31 Unrealized
VINCERX PHARMA INC 0.0%
Value $1.052M Shares 891,719 Est. Cost $12.19 Unrealized
XLO XILIO THERAPEUTICS INC 0.0%
Value $792K Shares 1,440,759 Est. Cost $14.70 Unrealized -90.4%
NEVRO CORP 0.0%
Value $482K Shares 500,000 Est. Cost $1.37 Unrealized
TLPH ACELRX PHARMACEUTICALS INC 0.0%
Value $233K Shares 316,460 Est. Cost $2.81 Unrealized -77.3%
NUVATION BIO INC 0.0%
Value $8,042 Shares 134,028 Est. Cost $2.67 Unrealized