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Rock Springs Capital Management LP

Q3 2025 Holdings

Filed 2025-11-14 | 93 holdings | $1.7B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Argenx SE(ARGX)SPONSORED ADR04016X101$105.3M142,7506.2%
ELI Lilly & Co(LLY)COM532457108$80.4M105,4004.7%
Rhythm Pharmaceuticals Inc(RYTM)COM76243J105$72.4M717,1024.2%
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$63.2M137,7463.7%
Revolution Medicines Inc(RVMD)COM76155X100$62.4M1,335,2703.6%
Merus N VCOMN5749R100$56.2M597,0513.3%
Mirum Pharmaceuticals Inc(MIRM)COM604749101$55.8M761,1263.3%
Insmed Inc(INSM)COM PAR $.01457669307$55.4M385,0003.2%
Travere Therapeutics Inc(TVTX)COM89422G107$51.7M2,164,7733.0%
Ascendis Pharma A/S(ASND)SPONSORED ADR04351P101$42.6M214,5002.5%
Irhythm Technologies Inc(IRTC)COM450056106$40.4M235,0002.4%
Agios Pharmaceuticals Inc(AGIO)COM00847X104$38.5M958,5422.2%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$37.5M1,246,3412.2%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$36.7M82,0002.1%
Boston Scientific Corp(BSX)COM101137107$35.2M360,2502.1%
Xenon Pharmaceuticals Inc(XENE)COM98420N105$34.2M851,7442.0%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$33.9M74,2502.0%
Exact Sciences Corp(EXAS)COM30063P105$32.5M593,5001.9%
Penumbra Inc(PEN)COM70975L107$30.5M120,5001.8%
Akero Therapeutics Inc(AKRO)COM00973Y108$29.7M626,5261.7%
Scholar Rock Hldg Corp(SRRK)COM80706P103$29.6M794,1331.7%
ZAI LAB LTD(ZLAB)ADR98887Q104$26.8M791,1931.6%
Structure Therapeutics Inc(GPCR)SPONSORED ADS86366E106$26.6M951,1541.6%
Kymera Therapeutics Inc(KYMR)COM501575104$25.5M450,3741.5%
Tenet Healthcare Corp(THC)COM NEW88033G407$25.4M125,0001.5%
Evolent Health Inc(EVH)CL A30050B101$25.0M2,950,0001.5%
Caris Life Sciences Inc(CAI)COM142152107$24.0M793,6511.4%
Cidara Therapeutics Inc(CDTX)COM NEW171757206$23.9M249,4021.4%
Dexcom Inc(DXCM)COM252131107$21.3M316,9001.2%
Omada Health Inc(OMDA)COM68170A108$20.3M919,9501.2%
Celldex Therapeutics Inc New(CLDX)COM NEW15117B202$18.7M721,5381.1%
Vera Therapeutics Inc(VERA)CL A92337R101$17.9M617,3961.0%
Phreesia Inc(PHR)COM71944F106$17.6M749,1161.0%
Tarsus Pharmaceuticals Inc(TARS)COM87650L103$17.1M288,3441.0%
Newamsterdam Pharma Company(NAMS)ORDINARY SHARESN62509109$16.9M595,9291.0%
Compass Therapeutics Inc(CMPX)COM20454B104$15.7M4,474,7020.9%
Pharvaris N V(PHVS)COMN69605108$15.6M623,4020.9%
Azenta Inc(AZTA)COM114340102$15.5M540,4000.9%
Mineralys Therapeutics Inc(MLYS)COM603170101$15.5M408,3130.9%
Amicus Therapeutics Inc(FOLD)COM03152W109$15.3M1,947,3740.9%
Spdr Series Trust(XBI)S&P BIOTECH78464A870$15.2M151,7500.9%
Arcellx Inc(ACLX)COMMON STOCK03940C100$14.7M178,9820.9%
Summit Therapeutics Inc(SMMT)COM86627T108$14.7M710,0000.9%
Cogent Biosciences Inc(COGT)COM19240Q201$14.5M1,008,3080.8%
Enliven Therapeutics Inc(ELVN)COM29337E102$14.0M686,1070.8%
Zenas Biopharma Inc(ZBIO)COM98937L105$12.9M580,6770.8%
Neurocrine Biosciences Inc(NBIX)COM64125C109$12.6M89,7500.7%
Ardelyx Inc(ARDX)COM039697107$12.6M2,286,2730.7%
Danaher Corporation(DHR)COM235851102$12.2M61,5000.7%
Lenz Therapeutics Inc(LENZ)COM52635N103$11.0M236,2270.6%
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