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13F-HR filed by RTW INVESTMENTS, LP

RTW INVESTMENTS, LP filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-08-14, with 84 holding rows worth $11,712,926,784.

Accession
0001493215-26-000164
Filed
2026-08-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2026

A holdings report, 84 entries on the cover page, a total value of $11,712,926,784 stated on the cover page (in dollars after the unit check, H1), rows summing to $11,712,926,784 with VALUE read as dollars as filed, 13F file number 028-16670. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
MADRIGAL PHARMACEUTICALS INC COM558868105Stock1,993,687$1,070,510,235dollars as filed
ARGENX SE SPONSORED ADR04016X101ADR709,446$658,202,715dollars as filed
PTC THERAPEUTICS INC69366J200COM7,746,415$631,875,072dollars as filed
PROTAGONIST THERAPEUTICS74366E102COM5,061,175$620,398,832dollars as filed
CG ONCOLOGY INC156944100COMMON STOCK8,514,590$604,961,620dollars as filed
INSMED INC COM PAR $.01457669307Stock4,842,880$516,347,866dollars as filed
TANGO THERAPEUTICS INC87583X109COM13,900,620$434,533,381dollars as filed
SPYRE THERAPEUTICS INC00773J202COM NEW4,251,996$377,492,205dollars as filed
CELCUITY INC15102K100COM3,304,903$345,758,952dollars as filed
ERASCA INC COM29479A108Stock17,946,754$328,784,533dollars as filed
RADNET INC750491102COM4,846,958$298,911,900dollars as filed
ORUKA THERAPEUTICS INC COM687604108Stock3,139,030$298,741,485dollars as filed
NATERA INC COM632307104Stock1,000,000$271,450,000dollars as filed
ULTRAGENYX PHARMACEUTICAL IN90400D108COM7,796,895$260,338,324dollars as filed
IRHYTHM HOLDINGS INC COM450056106Stock2,182,631$259,623,957dollars as filed
CYTOKINETICS INC23282W605COM NEW2,862,003$243,814,036dollars as filed
KAILERA THERAPEUTICS INC482931102COMMON STOCK10,776,820$237,413,345dollars as filed
ESTABLISHMENT LABS HOLDINGSG31249108COMMON STOCK2,655,695$227,885,188dollars as filed
GUARDANT HEALTH INC COM40131M109Stock1,481,033$222,199,381dollars as filed
NEUROCRINE BIOSCIENCES INC64125C109COM1,267,925$213,689,740dollars as filed
TARSUS PHARMACEUTICALS INC87650L103COMMON STOCK3,357,059$211,293,293dollars as filed
STOKE THERAPEUTICS INC86150R107COM5,623,525$184,001,738dollars as filed
UNIQURE NVN90064101SHS3,941,572$181,548,806dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM7,144,524$180,756,457dollars as filed
REPLIGEN CORP COM759916109Stock1,240,637$169,272,512dollars as filed
UROGEN PHARMA LTDM96088105COMMON STOCK4,543,895$167,215,336dollars as filed
GH RESEARCH PLC ORDINARY SHARESG3855L106Stock5,933,815$159,500,947dollars as filed
IMMUNOCORE HLDGS PLC ADS45258D105ADR4,869,798$154,616,087dollars as filed
COMPASS PATHWAYS PLC20451W101SPONSORED ADS10,700,974$151,418,782dollars as filed
IMMATICS N.VN44445109SHS12,946,176$131,144,763dollars as filed
ZAI LAB LTD ADR98887Q104ADR6,574,032$124,906,608dollars as filed
IMMUNOVANT INC45258J102COM3,177,849$122,442,522dollars as filed
BELITE BIO INC07782B104CMN715,332$110,150,398dollars as filed
XENCOR INC98401F105COMMON STOCK6,777,461$109,117,122dollars as filed
TAYSHA GENE THERAPIES INC877619106COMMON STOCK13,560,258$92,345,357dollars as filed
COGENT BIOSCIENCES INC19240Q201COM2,309,021$89,359,113dollars as filed
ALKERMES PLCG01767105SHS1,672,356$87,623,093dollars as filed
STRUCTURE THERAPEUTICS INC COMP86366E106EQUITY1,607,507$86,274,901dollars as filed
REPLIMUNE GROUP INC76029N106COMMON STOCK7,411,581$82,046,202dollars as filed
CASTLE BIOSCIENCES INC14843C105COMMON STOCK2,778,335$66,263,290dollars as filed
CANDEL THERAPEUTICS INC137404109COMMON STOCK6,422,018$66,146,785dollars as filed
ROCKET PHARMACEUTICALS INC77313F106COM17,687,772$60,492,180dollars as filed
KODIAK SCIENCES INC50015M109COM1,487,934$57,969,909dollars as filed
AKTIS ONCOLOGY INC01021M104COMMON STOCK1,592,043$51,311,546dollars as filed
AXOGEN INC05463X106COM1,011,576$46,724,695dollars as filed
Danaher Corporation235851102COM230,000$43,810,400dollars as filed
CULLINAN THERAPEUTICS INC230031106COM2,364,347$43,054,759dollars as filed
NEUROGENE INC64135M105COMMON STOCK1,362,456$42,849,241dollars as filed
HINGE HEALTH INC A433313103COMMON STOCK500,000$41,500,000dollars as filed
ORCHESTRA BIOMED HOLDINGS IN68572M106COMMON STOCK9,556,063$41,234,412dollars as filed
SOLID BIOSCIENCES INC83422E204COMMON STOCK3,892,926$38,890,331dollars as filed
SAVARA INC805111101COM5,952,380$36,666,661dollars as filed
AQUESTIVE THERAPEUTICS INC COM03843E104Stock7,426,471$30,894,119dollars as filed
KYMERA THERAPEUTICS INC501575104COM240,000$27,520,800dollars as filed
VERASTEM INC92337C203COMMON STOCK6,635,793$25,348,729dollars as filed
DIANTHUS THERAPEUTICS INC252828108COM248,063$24,181,181dollars as filed
BETA BIONICS INC08659B102COMMON STOCK1,500,000$23,505,000dollars as filed
CENTURY THERAPEUTICS INC15673T100COM8,695,652$21,304,347dollars as filed
EVOMMUNE INC30054Y107COMMON STOCK1,502,235$19,964,703dollars as filed
BEAM THERAPEUTICS INC07373V105COM570,394$19,575,922dollars as filed
DEFINIUM THERAPEUTICS INC24477V105COM SHS400,000$18,816,000dollars as filed
IDEAYA BIOSCIENCES INC COM45166A102Stock370,370$13,803,690dollars as filed
ATAIBECKLEY INC04650F101COM SHS2,000,000$10,540,000dollars as filed
Milestone Pharmaceuticals Inc59935V107COM7,833,336$10,496,670dollars as filed
OCUGEN INC67577C105COMMON STOCK6,666,666$10,199,999dollars as filed
TENAX THERAPEUTICS INC88032L605COM NEW696,570$10,135,094dollars as filed
HEARTFLOW INC42238D107COM295,000$8,655,300dollars as filed
PERCEPTIVE CAPITAL SOLUTIONSG70077105CL A ORD SHS742,500$8,078,400dollars as filed
WAVE LIFE SCIENCES LTD SHSY95308105Stock1,350,000$7,843,500dollars as filed
LARIMAR THERAPEUTICS INC517125100COM2,565,999$7,826,297dollars as filed
LUMEXA IMAGING HOLDINGS INC550249106COMMON STOCK650,000$7,332,000dollars as filed
ALLOGENE THERAPEUTICS INC019770106COM3,250,000$6,760,000dollars as filed
CRESCENT BIOPHARMA INCG2545C104COMMON STOCK372,856$6,711,408dollars as filed
4D MOLECULAR THERAPEUTICS INC COM35104E100Stock475,737$6,327,302dollars as filed
MAZE THERAPEUTICS INC COM578784100Stock212,000$6,326,080dollars as filed
CAPRICOR THERAPEUTICS INC14070B309COMMON STOCK250,000$6,020,000dollars as filed
KALARIS THERAPEUTICS INC482929106COM1,300,000$5,291,000dollars as filed
ABIVAX SA-00370M103SPONSORED ADS26,400$3,518,064dollars as filed
AVALO THERAPEUTICS INC05338F306COMMON STOCK175,000$3,234,000dollars as filed
MEDLINE INC COM CL A58507V107Stock70,000$2,760,800dollars as filed
DISC MEDICINE INC COM254604101Stock30,000$2,194,200dollars as filed
IMAGENEBIO INC45175G207CMN334,445$1,973,226dollars as filed
EXAGEN INC30068X103COM195,000$906,750dollars as filed
Rocket Pharmaceuticals Inc W Exp 09/02/20277313F114Warrant350,000$1,190dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001493215-26-000164this filing2026-08-14acceptance time not in the bulk data set