Palo Alto Investors

Palo Alto Investors as of March 31, 2026

Portfolio Holdings for Palo Alto Investors

Palo Alto Investors holds 51 positions in its portfolio as reported in the March 2026 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Insmed Com Par $.01 (INSM) 10.4 $68M 415k 163.52
ACADIA Pharmaceuticals (ACAD) 9.8 $64M 2.9M 22.26
Ptc Therapeutics I (PTCT) 9.6 $63M 922k 68.13
BioMarin Pharmaceutical (BMRN) 5.9 $39M 685k 56.49
United Therapeutics Corporation (UTHR) 5.7 $37M 63k 592.98
Anaptysbio Inc Common (ANAB) 5.4 $35M 638k 55.46
Mirum Pharmaceuticals (MIRM) 4.6 $30M 325k 92.38
Dyne Therapeutics (DYN) 4.6 $30M 1.7M 18.13
Biogen Idec (BIIB) 3.9 $26M 141k 183.33
Disc Medicine (IRON) 3.9 $26M 402k 63.94
Iovance Biotherapeutics (IOVA) 3.4 $22M 6.3M 3.51
Syndax Pharmaceuticals (SNDX) 3.1 $20M 865k 23.36
Annexon (ANNX) 2.5 $16M 2.9M 5.54
Amicus Therapeutics (FOLD) 2.5 $16M 1.1M 14.46
Novocure Ord Shs (NVCR) 2.1 $14M 1.3M 10.90
Ultragenyx Pharmaceutical (RARE) 1.9 $13M 597k 20.95
Prothena Corp SHS (PRTA) 1.8 $12M 1.2M 9.72
Bicara Therapeutics (BCAX) 1.7 $11M 550k 19.89
Celldex Therapeutics Com New (CLDX) 1.4 $9.4M 296k 31.72
Caredx (CDNA) 1.4 $9.2M 532k 17.36
Alkermes SHS (ALKS) 1.3 $8.6M 243k 35.36
Compass Therapeutics (CMPX) 1.2 $8.0M 1.5M 5.29
Agios Pharmaceuticals (AGIO) 1.1 $7.2M 214k 33.83
Align Technology (ALGN) 1.1 $7.1M 42k 171.43
Capricor Therapeutics Com New (CAPR) 1.1 $7.0M 230k 30.40
Travere Therapeutics (TVTX) 1.0 $6.8M 231k 29.71
Taysha Gene Therapies Com Shs (TSHA) 1.0 $6.2M 1.4M 4.47
Aclaris Therapeutics (ACRS) 0.9 $6.1M 1.6M 3.75
Denali Therapeutics (DNLI) 0.7 $4.5M 235k 19.20
Xenon Pharmaceuticals (XENE) 0.5 $3.0M 51k 58.15
Oruka Therapeutics (ORKA) 0.4 $2.9M 60k 49.05
Stoke Therapeutics (STOK) 0.4 $2.8M 85k 32.56
Edwards Lifesciences (EW) 0.4 $2.7M 34k 80.08
Neurocrine Biosciences (NBIX) 0.4 $2.4M 18k 131.74
Nuvation Bio Com Cl A (NUVB) 0.3 $2.2M 509k 4.29
Cytokinetics Com New (CYTK) 0.3 $2.1M 32k 65.91
eHealth (EHTH) 0.3 $1.9M 1.5M 1.29
Crispr Therapeutics Namen Akt (CRSP) 0.3 $1.9M 40k 47.57
Biontech Se- Sponsored Ads (BNTX) 0.3 $1.7M 20k 88.88
Pyxis Oncology Common Stock (PYXS) 0.2 $1.5M 1.0M 1.46
Verastem Com New (VSTM) 0.2 $1.3M 246k 5.30
Bicycle Therapeutics Plc- Sponsored Ads (BCYC) 0.1 $937k 202k 4.64
Madrigal Pharmaceuticals (MDGL) 0.1 $935k 1.8k 523.47
Humana (HUM) 0.1 $691k 4.0k 173.39
Compass Pathways Sponsored Ads (CMPS) 0.1 $639k 116k 5.53
Xeris Pharmaceuticals (XERS) 0.1 $606k 104k 5.80
Abeona Therapeutics Com New (ABEO) 0.1 $488k 109k 4.48
Inspire Med Sys (INSP) 0.1 $453k 8.8k 51.58
Urogen Pharma (URGN) 0.1 $441k 25k 17.98
Proqr Therapeutics Nv Shs Euro (PRQR) 0.0 $306k 189k 1.62
Aldeyra Therapeutics (ALDX) 0.0 $263k 156k 1.69