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Rock Springs Capital Management LP

Q2 2025 Holdings

Filed 2025-08-14 | 93 holdings | $1.6B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Argenx SE(ARGX)SPONSORED ADR04016X101$96.9M175,7506.0%
ELI Lilly & Co(LLY)COM532457108$90.8M116,5005.7%
Merus N VCOMN5749R100$55.9M1,063,6083.5%
Rhythm Pharmaceuticals Inc(RYTM)COM76243J105$54.4M861,1533.4%
Insmed Inc(INSM)COM PAR $.01457669307$52.8M525,0003.3%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$50.6M1,391,0723.2%
Revolution Medicines Inc(RVMD)COM76155X100$49.0M1,330,9603.1%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$44.6M82,0002.8%
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$42.5M140,2962.6%
Mirum Pharmaceuticals Inc(MIRM)COM604749101$41.6M818,2062.6%
Boston Scientific Corp(BSX)COM101137107$38.1M355,0002.4%
Ascendis Pharma A/S(ASND)SPONSORED ADR04351P101$37.5M217,0002.3%
Irhythm Technologies Inc(IRTC)COM450056106$37.3M242,5002.3%
Akero Therapeutics Inc(AKRO)COM00973Y108$34.2M640,5262.1%
Penumbra Inc(PEN)COM70975L107$33.0M128,5002.1%
Agios Pharmaceuticals Inc(AGIO)COM00847X104$32.9M989,7452.1%
Alnylam Pharmaceuticals Inc(ALNY)COM02043Q107$32.6M100,0002.0%
Evolent Health Inc(EVH)CL A30050B101$31.8M2,820,7002.0%
ZAI LAB LTD(ZLAB)ADR98887Q104$30.5M871,3921.9%
Exact Sciences Corp(EXAS)COM30063P105$30.4M572,0001.9%
Xenon Pharmaceuticals Inc(XENE)COM98420N105$29.2M931,6811.8%
Travere Therapeutics Inc(TVTX)COM89422G107$28.2M1,908,2081.8%
Scholar Rock Hldg Corp(SRRK)COM80706P103$28.1M794,1331.8%
Dexcom Inc(DXCM)COM252131107$25.0M286,7501.6%
Phreesia Inc(PHR)COM71944F106$23.8M837,3001.5%
Blueprint Medicines Corp(2L9)COM09627Y109$23.8M185,5001.5%
Structure Therapeutics Inc(GPCR)SPONSORED ADS86366E106$23.6M1,135,8791.5%
Tenet Healthcare Corp(THC)COM NEW88033G407$22.9M130,0001.4%
Caris Life Sciences Inc(CAI)COM142152107$21.2M793,6511.3%
Kymera Therapeutics Inc(KYMR)COM501575104$19.7M450,3741.2%
Omada Health Inc(OMDA)COM68170A108$16.8M919,9511.0%
Celldex Therapeutics Inc New(CLDX)COM NEW15117B202$16.5M812,6531.0%
Azenta Inc(AZTA)COM114340102$16.3M530,4001.0%
Acadia Healthcare Company in(ACHC)COM00404A109$15.8M696,0001.0%
Unitedhealth Group Inc(UNH)COM91324P102$15.8M50,5001.0%
Tarsus Pharmaceuticals Inc(TARS)COM87650L103$15.1M373,7500.9%
Summit Therapeutics Inc(SMMT)COM86627T108$15.1M710,0000.9%
Agilon Health Inc(AGL)COM00857U107$15.1M6,550,4000.9%
Oscar Health Inc(OSCR)CL A687793109$15.0M700,0000.9%
Vera Therapeutics Inc(VERA)CL A92337R101$14.5M617,3960.9%
Enliven Therapeutics Inc(ELVN)COM29337E102$14.1M701,4080.9%
Inspire MED SYS Inc(INSP)COM457730109$14.0M107,5000.9%
Soleno Therapeutics Inc(SLNO)COM834203309$12.9M154,5280.8%
Compass Therapeutics Inc(CMPX)COM20454B104$12.9M4,962,9550.8%
Spdr Series Trust(XBI)S&P BIOTECH78464A870$12.6M151,7500.8%
Arcellx Inc(ACLX)COMMON STOCK03940C100$12.3M186,3140.8%
Mereo Biopharma Group PLC(MREO)SPON ADS589492107$12.1M4,465,2920.8%
Danaher Corporation(DHR)COM235851102$11.7M59,0000.7%
Amicus Therapeutics Inc(FOLD)COM03152W109$11.2M1,960,3340.7%
West Pharmaceutical Svsc Inc(WST)COM955306105$11.2M51,0300.7%
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