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RTW Investments, LP

Q1 2026 Holdings

Filed 2026-05-15 | 88 holdings | $10.0B | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Madrigal Pharmaceuticals Inc(MDGL)COM558868105$1.0B1,993,68710.4%
Insmed Inc(INSM)COM PAR $.01457669307$791.9M4,842,8807.9%
Protagonist Therapeutics Inc(PTGX)COM74366E102$533.2M5,059,0535.3%
PTC Therapeutics Inc(PTCT)COM69366J200$527.8M7,746,4155.3%
Argenx SE(ARGX)SPONSORED ADR04016X101$518.1M709,4465.2%
CG Oncology Inc(CGON)COM156944100$472.7M6,984,8084.7%
Celcuity Inc(CELC)COM15102K100$346.9M3,039,6213.5%
Tango Therapeutics Inc(TNGX)COM87583X109$278.2M13,300,6202.8%
Erasca Inc(ERAS)COM29479A108$261.4M16,157,1752.6%
Natera Inc(NTRA)COM632307104$250.0M1,250,0002.5%
Radnet Inc(RDNT)COM750491102$239.5M4,285,0002.4%
Tarsus Pharmaceuticals Inc(TARS)COM87650L103$234.7M3,346,0252.3%
Apogee Therapeutics Inc(APGE)COM03770N101$234.2M2,782,0972.3%
Spyre Therapeutics Inc(SYRE)COM NEW00773J202$210.4M4,171,9962.1%
Cogent Biosciences Inc(COGT)COM19240Q201$210.1M5,458,6752.1%
Irhythm Holdings Inc(IRTC)COM450056106$196.9M1,668,5002.0%
Stoke Therapeutics Inc(STOK)COM86150R107$183.1M5,623,5251.8%
Cytokinetics Inc(CYTK)COM NEW23282W605$179.4M2,721,1581.8%
Acadia Pharmaceuticals Inc(ACAD)COM004225108$159.0M7,144,5241.6%
Establishment Labs Hldgs Inc(ESTA)COMG31249108$150.8M2,655,6951.5%
Apellis Pharmaceuticals Inc(APLS)COM03753U106$148.2M3,685,0451.5%
Immunocore Hldgs PLC(IMCR)ADS45258D105$146.8M4,869,7981.5%
Repligen Corp(RGEN)COM759916109$142.1M1,206,0001.4%
Neurocrine Biosciences Inc(NBIX)COM64125C109$139.9M1,062,0721.4%
Guardant Health Inc(GH)COM40131M109$136.8M1,481,0331.4%
Immatics N.v(IMTX)SHSN44445109$126.6M12,869,3401.3%
ZAI LAB LTD(ZLAB)ADR98887Q104$123.7M6,574,0321.2%
Belite BIO Inc(BLTE)SPONSORED ADS07782B104$114.1M715,3321.1%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$101.4M220,0001.0%
Oruka Therapeutics Inc(ORKA)COM687604108$101.0M2,058,1481.0%
GH Research PLC(GHRS)ORDINARY SHARESG3855L106$83.4M5,933,8150.8%
Xencor Inc(XNCR)COM98401F105$81.7M6,777,4610.8%
Urogen Pharma LTD(URGN)COMM96088105$81.7M4,543,8950.8%
Centessa Pharmaceuticals PLC(CNTA)SPONSORED ADS152309100$81.6M2,054,1750.8%
Immunovant Inc(IMVT)COM45258J102$78.9M3,177,8490.8%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$76.4M3,648,7950.8%
Hinge Health Inc(HNGE)CL A433313103$74.4M1,930,0000.7%
Castle Biosciences Inc(CSTL)COM14843C105$67.7M2,758,3350.7%
Rocket Pharmaceuticals Inc(RCKT)COM77313F106$63.3M17,687,7720.6%
Taysha Gene Therapies Inc(TSHA)COM SHS877619106$61.2M13,680,2480.6%
Alkermes PLC(ALKS)SHSG01767105$59.1M1,672,3560.6%
Compass Pathways PLC(CMPS)SPONSORED ADS20451W101$58.8M10,632,3900.6%
Kodiak Sciences Inc(KOD)COM50015M109$56.7M1,487,9340.6%
Replimune Group Inc(REPL)COM76029N106$56.3M7,356,9160.6%
Crinetics Pharmaceuticals in(CRNX)COM22663K107$52.7M1,451,3260.5%
Uniqure NV(QURE)SHSN90064101$42.3M2,586,3560.4%
Waystar Hldg Corp(WAY)COM946784105$39.3M1,630,0000.4%
Arrowhead Pharmaceuticals in(ARWR)COM04280A100$36.7M585,6820.4%
Orchestra Biomed Hldgs Inc(OBIO)COM68572M106$35.3M8,306,0630.4%
Verastem Inc(VSTM)COM NEW92337C203$34.9M6,576,3060.3%
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