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RTW Investments, LP

Q4 2025 Holdings

Filed 2026-02-17 | 91 holdings | $10.0B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$1.2B1,993,68711.6%
Insmed Inc(INSM)COM PAR $.01457669307$842.9M4,842,8798.4%
PTC Therapeutics Inc(PTCT)COM69366J200$588.4M7,746,4155.9%
Argenx SE(ARGX)SPONSORED ADR04016X101$566.4M673,4975.7%
Protagonist Therapeutics Inc(PTGX)COM74366E102$441.9M5,059,0534.4%
Natera Inc(NTRA)COM632307104$343.6M1,500,0003.4%
Radnet Inc(RDNT)COM750491102$281.0M3,938,5002.8%
Tarsus Pharmaceuticals Inc(TARS)COM87650L103$273.1M3,335,3202.7%
Cogent Biosciences Inc(COGT)COM19240Q201$269.7M7,592,2412.7%
Penumbra Inc(PEN)COM70975L107$269.4M866,4992.7%
Irhythm Technologies Inc(IRTC)COM450056106$209.7M1,181,9902.1%
Apogee Therapeutics Inc(APGE)COM03770N101$204.7M2,712,0972.1%
Apellis Pharmaceuticals Inc(APLS)COM03753U106$192.6M7,666,7641.9%
Acadia Pharmaceuticals Inc(ACAD)COM004225108$190.8M7,144,5241.9%
Establishment Labs Hldgs Inc(ESTA)COMG31249108$188.7M2,588,8311.9%
Stoke Therapeutics Inc(STOK)COM86150R107$176.1M5,546,8561.8%
Repligen Corp(RGEN)COM759916109$174.3M1,064,0001.7%
Cytokinetics Inc(CYTK)COM NEW23282W605$172.9M2,721,1581.7%
Immunocore Hldgs PLC(IMCR)ADS45258D105$169.0M4,869,7981.7%
Axsome Therapeutics Inc(AXSM)COM05464T104$162.2M888,0011.6%
Guardant Health Inc(GH)COM40131M109$151.3M1,481,0331.5%
Neurocrine Biosciences Inc(NBIX)COM64125C109$150.6M1,062,0721.5%
Spyre Therapeutics Inc(SYRE)COM NEW00773J202$136.7M4,171,9961.4%
ZAI LAB LTD(ZLAB)ADR98887Q104$122.8M6,959,0321.2%
Immatics N.v(IMTX)SHSN44445109$120.1M11,433,3541.2%
Belite BIO Inc(BLTE)SPONSORED ADS07782B104$114.4M715,3321.1%
Urogen Pharma LTD(URGN)COMM96088105$106.4M4,543,8951.1%
Xencor Inc(XNCR)COM98401F105$103.8M6,777,4611.0%
Insulet Corp(PODD)COM45784P101$92.3M324,6000.9%
Taysha Gene Therapies Inc(TSHA)COM SHS877619106$90.2M16,398,2970.9%
Masimo Corp(MASI)COM574795100$88.9M683,2940.9%
Uniqure NV(QURE)SHSN90064101$88.8M3,711,4620.9%
Stryker Corporation(SYK)COM863667101$86.1M245,0000.9%
CG Oncology Inc(CGON)COM156944100$83.5M2,012,1270.8%
Castle Biosciences Inc(CSTL)COM14843C105$82.3M2,115,2370.8%
Immunovant Inc(IMVT)COM45258J102$80.8M3,177,8500.8%
Beta Bionics Inc(BBNX)COM08659B102$76.2M2,500,0000.8%
GH Research PLC(GHRS)ORDINARY SHARESG3855L106$75.4M5,933,8150.8%
Replimune Group Inc(REPL)COM76029N106$69.4M7,140,3520.7%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$69.0M3,000,1390.7%
Crinetics Pharmaceuticals in(CRNX)COM22663K107$62.9M1,351,3260.6%
Oruka Therapeutics Inc(ORKA)COM687604108$62.4M2,058,1480.6%
Rocket Pharmaceuticals Inc(RCKT)COM77313F106$62.1M17,687,7720.6%
Compass Pathways PLC(CMPS)SPONSORED ADS20451W101$60.4M8,757,3900.6%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$57.3M101,2280.6%
Rapt Therapeutics Inc(RAPT)COM NEW75382E208$55.5M1,637,1650.6%
Celcuity Inc(CELC)COM15102K100$54.9M550,1600.5%
Verastem Inc(VSTM)COM NEW92337C203$50.8M6,576,3060.5%
Alkermes PLC(ALKS)SHSG01767105$46.8M1,672,3560.5%
Centessa Pharmaceuticals PLC(CNTA)SPONSORED ADS152309100$44.8M1,790,8370.4%
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