Fund · 13F portfolio

Baker Bros. Advisors

Baker Bros. Advisors · 2026 Q2 13F · period ended Jun 30, 2026 · filed Aug 14, 2026
Reported value
$20.0B
2026 Q2 filing
Stocks held
81
as of Jun 30, 2026
Opened / added
8 / 14
vs previous quarter
Trimmed / exited
7 / 7
vs previous quarter

Holdings · 2026 Q2

TickerCompanyWeightSharesChange
INCYINCYTE CORP17.48%30,762,330ADDED (+0.1%)
ONCBeOne Medicines Ltd.12.57%8,801,567HELD
RVMDREVOLUTION MEDICINES INC10.74%11,443,357ADDED (+19.8%)
MDGLMADRIGAL PHARMACEUTICALS INC5.77%2,143,131ADDED (+0.1%)
ACADACADIA PHARMACEUTICALS INC5.44%42,912,904HELD
KYMRKYMERA THERAPEUTICS INC4.97%8,657,242HELD
INSMINSMED Inc4.70%8,796,111ADDED (+18.5%)
CELCCelcuity Inc.4.15%7,915,792HELD
KODKodiak Sciences Inc.3.89%19,919,186HELD
RYTMRHYTHM PHARMACEUTICALS INC3.12%5,604,483HELD
PRAXPraxis Precision Medicines, Inc.2.94%1,753,198HELD
ALKSAlkermes plc.2.63%10,012,267HELD
SMMTSUMMIT THERAPEUTICS INC2.39%32,786,348TRIMMED (-9.9%)
GRALGRAIL, Inc.1.38%4,028,614HELD
ABCLAbCellera Biologics Inc1.30%33,012,138ADDED (+9.0%)
IMVTImmunovant, Inc.1.05%5,435,220TRIMMED (-0.4%)
IDYAIDEAYA BIOSCIENCES INC0.94%5,010,030ADDED (+26.9%)
KNSAKiniksa Pharmaceuticals International, plc0.91%2,834,643ADDED (+0.3%)
ROIVRoivant Sciences Ltd.0.84%4,716,831TRIMMED (-3.1%)
ARWRARROWHEAD PHARMACEUTICALS, INC.0.81%1,992,783HELD
IONSIONIS PHARMACEUTICALS INC0.81%2,047,727HELD
EWTXEdgewise Therapeutics, Inc.0.75%3,701,719TRIMMED (-43.7%)
REPLREPLIMUNE GROUP INC0.61%11,045,336HELD
NRIXNURIX THERAPEUTICS INC0.57%4,658,556HELD
STOKSTOKE THERAPEUTICS INC0.55%3,336,697HELD
GLUEMONTE ROSA THERAPEUTICS INC0.53%4,345,736HELD
IMTXImmatics N.V.0.48%9,508,565TRIMMED (-12.9%)
DNLIDenali Therapeutics Inc.0.48%3,734,336ADDED (+0.1%)
DNTHDianthus Therapeutics, Inc. /DE/0.42%852,164HELD
GPCRSTRUCTURE THERAPEUTICS INC0.39%1,432,529HELD
RAPPRAPPORT THERAPEUTICS INC0.32%1,547,090HELD
ALMSALUMIS INC0.28%2,012,500HELD
PRLDPRELUDE THERAPEUTICS INC0.27%10,123,824HELD
RLAYRelay Therapeutics, Inc.0.27%2,826,783ADDED (+143.7%)
MIRMMirum Pharmaceuticals, Inc.0.26%445,975HELD
BCYCBICYCLE THERAPEUTICS PLC-ADR0.23%10,885,357HELD
ELVNENLIVEN THERAPEUTICS INC0.23%905,191HELD
CLDXCelldex Therapeutics, Inc.0.22%1,182,611ADDED (+77.7%)
VRDNViridian Therapeutics, Inc.\DE0.22%2,383,025ADDED (+20.9%)
DSGNDESIGN THERAPEUTICS INC0.19%2,678,430ADDED (+3.6%)
TRDAENTRADA THERAPEUTICS INC0.19%5,072,730HELD
FTHFAETH THERAPEUTICS INC0.16%1,286,411NEW
AKTSAktis Oncology, Inc.0.16%996,351HELD
NGNENEUROGENE INC0.16%991,691HELD
JBIOJADE BIOSCIENCES INC0.14%1,230,426TRIMMED (-25.0%)
TSHATaysha Gene Therapies, Inc.0.14%4,004,756HELD
RCUSARCUS BIOSCIENCES INC0.13%844,816ADDED (+103.3%)
IRONDISC MEDICINE INC0.13%349,657HELD
ABSIABSCI CORP0.12%2,134,803HELD
GENBGENERATE BIOMEDICINES INC0.12%1,423,602HELD
DBVTDBV TECHNOLOGIES SA-SPON ADR0.12%1,461,425HELD
XENEXENON PHARMACEUTICALS INC0.11%370,208HELD
TECXTECTONIC THERAPEUTIC INC0.10%607,788HELD
CERSCERUS CORP0.09%6,395,431TRIMMED (-36.1%)
CTMXCYTOMX THERAPEUTICS INC0.09%4,975,826HELD
DYNDYNE THERAPEUTICS INC0.09%813,449HELD
CYTKCYTOKINETICS INC0.09%211,267NEW
XNCRXENCOR INC0.09%1,102,106HELD
SIONSionna Therapeutics, Inc.0.09%400,000HELD
NTLAIntellia Therapeutics, Inc.0.08%930,232NEW
PBLSPARABILIS MEDICINES INC0.07%500,000NEW
MPLTMAPLIGHT THERAPEUTICS INC0.07%364,705HELD
AVLNAVALYN PHARMA INC0.06%350,000NEW
EVMNEVOMMUNE INC0.06%847,390HELD
BNTXBioNTech SE0.06%119,743HELD
TNGXTANGO THERAPEUTICS INC0.05%333,333NEW
AVTXAVALO THERAPEUTICS INC0.05%550,000NEW
SERASERA PROGNOSTICS INC-A0.05%5,498,170HELD
VSTMVerastem, Inc.0.05%2,499,338ADDED (+327.4%)
SGMTSAGIMET BIOSCIENCES INC-A0.04%952,996HELD
EIKNEikon Therapeutics, Inc.0.04%555,555HELD
LBRXLB PHARMACEUTICALS INC0.03%200,000HELD
VTVTVTV THERAPEUTICS INC- CL A0.03%148,314HELD
WVEWave Life Sciences, Inc.0.02%822,638HELD
TARAPROTARA THERAPEUTIC INC0.02%971,614HELD
TCRXTSCAN THERAPEUTICS INC0.01%2,784,792HELD
IMNMIMMUNOME INC0.01%55,306NEW
SKYESkye Bioscience, Inc.0.01%1,575,243HELD
SANASANA BIOTECHNOLOGY INC0.01%310,483HELD
ALGSALIGOS THERAPEUTICS INC<0.01%83,055HELD
TYRATYRA BIOSCIENCES INC<0.01%10,607HELD

The weights above sum to 99.2% of the fund’s reported 13F value. Only positions matched to a U.S.-listed ticker are listed; the remainder sits in unmatched or non-equity positions in the filing.

Exited this quarter: ABVX, ARGX, CMPS, CTNM, IMCR, PHVS, SYRE.

Source: SEC Form 13F filing for the quarter ended Jun 30, 2026, filed Aug 14, 2026. CIK 0001263508. Change labels compare with the fund’s previous quarterly filing. 13F filings cover long positions only.

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