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Palo Alto Investors LP

Q4 2025 Holdings

Filed 2026-02-17 | 49 holdings | $718.4M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Insmed Inc(INSM)COM457669307$85.2M489,48211.9%
Amicus Therapeutics Inc(FOLD)COM03152W109$74.1M5,205,76710.3%
PTC Therapeutics Inc(PTCT)COM69366J200$68.7M903,9169.6%
Acadia Pharmaceuticals Inc(ACAD)COM004225108$66.3M2,484,0319.2%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$44.3M746,2566.2%
Anaptysbio Inc(ANAB)COM032724106$33.5M690,0324.7%
Biogen Inc(BIIB)SPONSORED ADS09062X103$32.3M183,5714.5%
Dyne Therapeutics Inc(DYN)SPONSORED ADS26818M108$28.8M1,472,1974.0%
United Therapeutics Corp(UTHR)COM91307C102$28.4M58,1863.9%
Disc Medicine Inc(IRON)COM254604101$25.2M317,4563.5%
Iovance Biotherapeutics Inc(IOVA)COM NEW462260100$19.4M7,116,6762.7%
Novocure LTD(NVCR)COMG6674U108$16.8M1,298,9642.3%
Syndax Pharmaceuticals Inc(SNDX)COM87164F105$16.7M794,5072.3%
Gossamer BIO Inc(GOSS)COM38341P102$13.9M4,471,5921.9%
Compass Therapeutics Inc(CMPX)COM20454B104$13.6M2,532,4191.9%
Prothena Corp PLC(PRTA)COM CL AG72800108$12.6M1,320,5101.8%
Mirum Pharmaceuticals Inc(MIRM)COM604749101$12.4M156,4211.7%
Annexon Inc(ANNX)COM03589W102$12.0M2,384,1921.7%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$10.6M461,2941.5%
Denali Therapeutics Inc(DNLI)COM24823R105$10.6M641,2391.5%
Caredx Inc(CDNA)COM14167L103$9.0M478,2201.3%
Ehealth Inc(EHTH)COM28238P109$7.0M1,531,4291.0%
Alkermes PLC(ALKS)COMG01767105$6.8M242,5600.9%
Capricor Therapeutics Inc(CAPR)COM NEW14070B309$6.5M226,3040.9%
Taysha Gene Therapies Inc(TSHA)COM877619106$6.5M1,183,1950.9%
Align Technology Inc(ALGN)COM016255101$6.5M41,5200.9%
Agios Pharmaceuticals Inc(AGIO)COM00847X104$5.8M212,4990.8%
Bicara Therapeutics Inc(BCAX)COM055477103$5.0M298,5750.7%
Nuvation BIO Inc(NUVB)COM CL A67080N101$4.8M538,0790.7%
Aclaris Therapeutics Inc(ACRS)COM00461U105$4.7M1,566,8400.7%
Xenon Pharmaceuticals Inc(XENE)COM98420N105$4.3M96,5190.6%
Travere Therapeutics Inc(TVTX)COM SHS89422G107$4.2M110,7190.6%
Edwards Lifesciences Corp(EW)COM28176E108$2.9M33,6400.4%
Neurocrine Biosciences Inc(NBIX)COM64125C109$2.6M18,1170.4%
Stoke Therapeutics Inc(STOK)COM86150R107$2.3M72,0220.3%
Crispr Therapeutics AG(CRSP)NAMEN AKTH17182108$2.2M41,2260.3%
Biontech SE(BNTX)COM09075V102$1.9M19,6140.3%
Oruka Therapeutics Inc(ORKA)COM687604108$1.8M59,9850.3%
Bicycle Therapeutics PLC(BCYC)COM088786108$1.6M221,0710.2%
Pyxis Oncology Inc(PYXS)COM747324101$1.2M1,037,4210.2%
Aldeyra Therapeutics Inc(ALDX)SPONSORED ADR01438T106$1.2M225,4650.2%
Humana Inc(HUM)COM444859102$1.0M3,9850.1%
Inspire Medical Systems Inc(INSP)COM457730109$809.0K8,7720.1%
Compass Pathways PLC ADR(CMPS)SPONSORED ADS20451W101$797.8K115,6160.1%
Urogen Pharma LTD(URGN)COMM96088105$573.8K24,5000.1%
Abeona Therapeutics Inc(ABEO)COM NEW00289Y206$573.7K108,8650.1%
Proqr Therapeutics NVSHS EURON71542109$381.4K188,8070.1%
Generation BIO CoCOM37148K209$85.5K15,0470.0%
Akari Therapeutics PLC(AKTX)COM00972G207$42.2K146,0240.0%