Palo Alto Investors LP

data from 30/09/2025

Capitalization

$ 540.390 M 14.98 %

Average holding period

17 ans

Performance

$ 21.152 B 120 849.82 %

Capitalization

Portfolio size

Portfolio performance

Portfolio performance %

Performance compared to S&P 500 (%)

Stock in Palo Alto Investors LP

Date Ticket Name Weight Capitalization Share number First added Performance ($) Performance (%)
2025/09/30 INSM INSMED INC 13.11% 70.825 M $ 491805 2011/03/31 37.520 M $ 43.09 %
2025/09/30 PTCT PTC THERAPEUTICS INC 9.80% 52.939 M $ 862613 2024/09/30 5.093 M $ 25.66 %
2025/09/30 ACAD ACADIA PHARMACEUTICALS INC 9.74% 52.639 M $ 2466684 2016/03/31 -589.538 K $ -1.07 %
2025/09/30 FOLD AMICUS THERAPEUTICS INC 7.83% 42.298 M $ 5367798 2007/06/30 12.063 M $ 37.52 %
2025/09/30 BMRN BIOMARIN PHARMACEUTICAL INC 7.56% 40.837 M $ 754007 2007/03/31 -680.780 K $ -1.47 %
2025/09/30 BIIB BIOGEN INC 4.81% 26.007 M $ 185661 2020/12/31 2.981 M $ 11.54 %
2025/09/30 UTHR UNITED THERAPEUTICS CORP 4.51% 24.392 M $ 58186 2007/12/31 12.590 M $ 45.89 %
2025/09/30 ANAB ANAPTYSBIO INC 3.82% 20.623 M $ 673520 2020/09/30 6.844 M $ 37.93 %
2025/09/30 IOVA IOVANCE BIOTHERAPEUTICS INC 3.06% 16.531 M $ 7618132 2023/12/31 1.543 M $ 26.16 %
2025/09/30 NVCR NOVOCURE LTD 3.00% 16.230 M $ 1256159 2023/03/31 -4.696 M $ -27.42 %
2025/09/30 DYN DYNE THERAPEUTICS INC 2.96% 15.973 M $ 1262674 2025/03/31 829.374 K $ 32.88 %
2025/09/30 IRON DISC MEDICINE INC 2.74% 14.822 M $ 224300 2025/06/30 1.911 M $ 24.77 %
2025/09/30 ALNY ALNYLAM PHARMACEUTICALS INC 2.73% 14.738 M $ 32320 2023/12/31 9.813 M $ 39.84 %
2025/09/30 GOSS GOSSAMER BIO INC 2.66% 14.371 M $ 5464349 2020/06/30 8.035 M $ 113.82 %
2025/09/30 PRTA PROTHENA CORP PLC 2.39% 12.923 M $ 1324028 2013/06/30 4.704 M $ 60.79 %
2025/09/30 RARE ULTRAGENYX PHARMACEUTICAL IN 2.06% 11.115 M $ 369531 2025/06/30 -306.150 K $ -17.27 %
2025/09/30 AGIO AGIOS PHARMACEUTICALS INC 1.97% 10.657 M $ 265497 2025/03/31 1.849 M $ 20.69 %
2025/09/30 SNDX SYNDAX PHARMACEUTICALS INC 1.86% 10.076 M $ 654930 2020/03/31 2.675 M $ 64.28 %
2025/09/30 EHTH EHEALTH INC 1.23% 6.657 M $ 1544619 2020/09/30 -63.114 K $ -0.92 %
2025/09/30 DNLI DENALI THERAPEUTICS INC 1.10% 5.924 M $ 408006 2025/06/30 127.098 K $ 3.79 %
2025/09/30 ALGN ALIGN TECHNOLOGY INC 1.06% 5.727 M $ 45735 2014/03/31 -2.422 M $ -33.86 %
2025/09/30 ALKS ALKERMES PLC 1.02% 5.518 M $ 183938 2020/12/31 307.219 K $ 4.86 %
2025/09/30 RNA AVIDITY BIOSCIENCES INC 0.89% 4.785 M $ 109831 2025/06/30 1.804 M $ 53.42 %
2025/09/30 MIRM MIRUM PHARMACEUTICALS INC 0.88% 4.743 M $ 64700 2021/12/31 1.451 M $ 44.06 %
2025/09/30 CDNA CAREDX INC 0.85% 4.598 M $ 316204 2025/09/30 0.000 $ 0.00 %
2025/09/30 TSHA TAYSHA GENE THERAPIES INC 0.75% 4.075 M $ 1246033 2023/12/31 1.196 M $ 41.56 %
2025/09/30 NUVB NUVATION BIO INC 0.70% 3.776 M $ 1020547 2024/03/31 1.352 M $ 89.74 %
2025/09/30 ACRS ACLARIS THERAPEUTICS INC 0.55% 2.977 M $ 1566840 2024/03/31 667.213 K $ 33.80 %
2025/09/30 CRSP CRISPR THERAPEUTICS AG 0.49% 2.672 M $ 41226 2025/06/30 721.586 K $ 33.24 %
2025/09/30 TVTX TRAVERE THERAPEUTICS INC 0.49% 2.646 M $ 110719 2020/12/31 1.008 M $ 61.49 %
2025/09/30 EW EDWARDS LIFESCIENCES CORP 0.48% 2.616 M $ 33640 2024/09/30 -17.368 K $ -0.56 %
2025/09/30 NBIX NEUROCRINE BIOSCIENCES INC 0.47% 2.543 M $ 18117 2025/03/31 195.876 K $ 11.69 %
2025/09/30 STOK STOKE THERAPEUTICS INC 0.46% 2.478 M $ 105427 2024/03/31 1.529 M $ 107.05 %
2025/09/30 PYXS PYXIS ONCOLOGY INC 0.43% 2.303 M $ 1037421 2024/09/30 1.162 M $ 101.82 %
2025/09/30 BNTX BIONTECH SE-ADR 0.36% 1.934 M $ 19614 2024/09/30 -197.867 K $ -7.37 %
2025/09/30 BCYC BICYCLE THERAPEUTICS PLC-ADR 0.32% 1.711 M $ 221071 2024/09/30 196.657 K $ 11.37 %
2025/09/30 ALDX ALDEYRA THERAPEUTICS INC 0.22% 1.177 M $ 225465 2019/06/30 313.396 K $ 36.29 %
2025/09/30 HUM HUMANA INC 0.19% 1.037 M $ 3985 2024/03/31 62.524 K $ 6.42 %
2025/09/30 ORKA ORUKA THERAPEUTICS INC 0.15% 791.310 K $ 59985 2025/09/30 0.000 $ 0.00 %
2025/09/30 0H7R.L ABEONA THERAPEUTICS INC 0.11% 574.807 K $ 108865 2024/09/30 -50.077 K $ -8.10 %
2025/09/30 URGN UROGEN PHARMA LTD 0.09% 488.775 K $ 24500 2020/03/31 153.125 K $ 45.62 %
2025/09/30 PRQR PROQR THERAPEUTICS NV 0.07% 402.159 K $ 188807 2025/09/30 0.000 $ 0.00 %
2025/09/30 AKTX AKARI THERAPEUTICS PLC-ADR 0.03% 147.484 K $ 146024 2024/12/31 -23.363 K $ -13.68 %
2025/09/30 GBIO GENERATION BIO CO 0.02% 92.088 K $ 15047 2024/06/30 43.938 K $ 91.22 %
2025/09/30 ALMS ALUMIS INC 0.00% 0.000 $ 0 2025/06/30 0.000 $ 0.00 %
2025/09/30 STAA STAAR SURGICAL CO 0.00% 0.000 $ 0 2009/09/30 0.000 $ 0.00 %
2025/09/30 KPTI KARYOPHARM THERAPEUTICS INC 0.00% 0.000 $ 0 2025/06/30 0.000 $ 0.00 %
2025/09/30 VYNE VYNE THERAPEUTICS INC PIPE 0.00% 0.000 $ 0 2023/12/31 0.000 $ 0.00 %