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Rock Springs Capital Management LP

Q4 2022 Holdings

Filed 2023-02-14 | 120 holdings | $4.2B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Humana Inc(HUM)COM444859102$218.4M426,5005.3%
Immunocore Hldgs PLC(IMCR)ADS45258D105$189.5M3,321,0664.6%
Insulet Corp(PODD)COM45784P101$154.3M524,2503.7%
Unitedhealth Group Inc(UNH)COM91324P102$143.1M270,0003.4%
Neurocrine Biosciences Inc(NBIX)COM64125C109$134.1M1,122,5003.2%
Argenx SE(ARGX)SPONSORED ADR04016X101$132.6M350,0003.2%
Agilon Health Inc(AGL)COM00857U107$127.1M7,872,5003.1%
Prometheus Biosciences IncCOM74349U108$113.5M1,031,5502.7%
Penumbra Inc(PEN)COM70975L107$113.1M508,2502.7%
Evolent Health Inc(EVH)CL A30050B101$106.8M3,803,5002.6%
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$101.0M348,1212.4%
Idexx Labs Inc(IDXX)COM45168D104$84.7M207,5002.0%
Horizon Therapeutics PUB LSHSG46188101$84.2M739,7002.0%
Agios Pharmaceuticals Inc(AGIO)COM00847X104$84.1M2,996,5922.0%
Blueprint Medicines Corp(2L9)COM09627Y109$82.9M1,891,5102.0%
Karuna Therapeutics IncCOM48576A100$81.3M413,7622.0%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$79.2M298,5001.9%
Cerevel Therapeutics Hldng I(CERE1EUR)COM15678U128$79.1M2,506,4641.9%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$79.0M332,5001.9%
Akero Therapeutics Inc(AKRO)COM00973Y108$76.8M1,400,6541.8%
Acadia Healthcare Company in(ACHC)COM00404A109$69.6M845,5001.7%
Align Technology Inc(ALGN)COM016255101$63.8M302,3501.5%
Aclaris Therapeutics Inc(ACRS)COM00461U105$62.4M3,961,2491.5%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$59.8M1,290,2791.4%
Baxter Intl Inc(BAX)COM071813109$58.6M1,150,0001.4%
Sarepta Therapeutics Inc(SRPT)COM803607100$56.5M436,0001.4%
Dexcom Inc(DXCM)COM252131107$55.5M490,5001.3%
Ascendis Pharma A/S(ASND)SPONSORED ADR04351P101$52.0M425,5001.3%
Seagen Inc(SGENUSD)COM81181C104$51.4M400,2001.2%
Rhythm Pharmaceuticals Inc(RYTM)COM76243J105$51.3M1,760,8651.2%
Edwards Lifesciences Corp(EW)COM28176E108$48.2M645,9001.2%
Xenon Pharmaceuticals Inc(XENE)COM98420N105$46.4M1,175,6721.1%
Amylyx Pharmaceuticals Inc(AMLX)COM03237H101$45.4M1,229,6371.1%
Prothena Corp PLC(PRTA)SHSG72800108$45.4M753,4621.1%
Exact Sciences Corp(EXAS)COM30063P105$43.9M887,5001.1%
West Pharmaceutical Svsc Inc(WST)COM955306105$43.7M185,5001.1%
Nevro Corp(NVROEUR)COM64157F103$42.7M1,077,9001.0%
Phreesia Inc(PHR)COM71944F106$42.1M1,302,5001.0%
Pacira Biosciences Inc(PCRX)COM695127100$39.9M1,032,6001.0%
Olink Hldg ABSPONSORED ADS680710100$36.7M1,445,0000.9%
Mirati Therapeutics Inc(MRTXEUR)COM60468T105$36.5M805,0240.9%
Mirum Pharmaceuticals Inc(MIRM)COM604749101$35.0M1,795,7330.8%
Freshpet Inc(FRPT)COM358039105$34.7M657,0000.8%
Abcam PLCADS000380204$33.9M2,180,0000.8%
ZAI LAB LTD(ZLAB)ADR98887Q104$32.5M1,059,7000.8%
Kymera Therapeutics Inc(KYMR)COM501575104$30.6M1,227,7790.7%
Irhythm Technologies Inc(IRTC)COM450056106$29.0M309,4500.7%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$27.4M264,5000.7%
Select Sector Spdr TR(XLV)SBI HEALTHCARE81369Y209$27.2M200,0000.7%
Compass Therapeutics Inc(CMPX)COM20454B104$26.8M5,333,1880.6%
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