Fund Holdings — Palo Alto Investors LP

Total Portfolio Value:
$540.39M
Total Bought:
$99.54M
Total Sold:
$79.63M
Net Transaction:
+$19.91M
Notable People:
Palo Alto Investors Gp Llc
Securities
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SharesValue
Q2 2025
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Q3 2025
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Change
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Q2 2025
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Q3 2025
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Weight (%)
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Change
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Insmed Incorporated(INSM)865,113491,805-373,308$87.06M$70.82M13.11%-$16.24M
PTC Therapeutics, Inc.(PTCT)406,469862,613+456,144$19.85M$52.94M9.80%+$33.09M
Acadia Pharmaceuticals Inc2,563,2092,466,684-96,525$55.29M$52.64M9.74%-$2.65M
Amicus Therapeutics Inc
COM
5,610,5135,367,798-242,715$32.15M$42.30M7.83%+$10.15M
BioMarin Pharmaceutical Inc.(BMRN)840,470754,007-86,463$46.20M$40.84M7.56%-$5.36M
Biogen Inc.ADS(BIIB)205,759185,661-20,098$25.84M$26.01M4.81%+$166.1K
United Therapeutics Corporation(UTHR)95,48258,186-37,296$27.44M$24.39M4.51%-$3.04M
Anaptysbio Inc812,821673,520-139,301$18.04M$20.62M3.82%+$2.58M
Iovance Biotherapeutics, Inc.(IOVA)3,429,3297,618,132+4,188,803$5.90M$16.53M3.06%+$10.63M
NovoCure Limited(NVCR)962,3961,256,159+293,763$17.13M$16.23M3.00%-$901.1K
Dyne Therapeutics, Inc.ADS(DYN)264,9761,262,674+997,698$2.52M$15.97M2.96%+$13.45M
Disc Medicine, Inc.(IRON)145,691224,300+78,609$7.72M$14.82M2.74%+$7.11M
Alnylam Pharmaceuticals, Inc.(ALNY)75,53532,320-43,215$24.63M$14.74M2.73%-$9.89M
Gossamer Bio, Inc.(GOSS)5,739,0135,464,349-274,664$7.06M$14.37M2.66%+$7.31M
Prothena Corp PlcCL A
SHS
1,274,7531,324,028+49,275$7.74M$12.92M2.39%+$5.18M
Ultragenyx Pharmaceutical Inc.(RARE)48,750369,531+320,781$1.77M$11.12M2.06%+$9.34M
Agios Pharmaceuticals, Inc.(AGIO)268,783265,497-3,286$8.94M$10.66M1.97%+$1.72M
Syndax Pharmaceuticals, Inc.(SNDX)444,367654,930+210,563$4.16M$10.08M1.86%+$5.91M
eHealth, Inc.(EHTH)1,577,8501,544,619-33,231$6.86M$6.66M1.23%-$206.3K
Denali Therapeutics Inc.(DNLI)239,809408,006+168,197$3.35M$5.92M1.10%+$2.57M
Align Technology Inc37,77245,735+7,963$7.15M$5.73M1.06%-$1.42M
Alkermes plc(ALKS)221,021183,938-37,083$6.32M$5.52M1.02%-$805.3K
Avidity Biosciences Inc118,886109,831-9,055$3.38M$4.79M0.89%+$1.41M
Mirum Pharmaceuticals, Inc.(MIRM)64,70064,7000$3.29M$4.74M0.88%+$1.45M
CareDx, Inc.(CDNA)0316,204+316,204$0$4.60M0.85%+$4.60M
Taysha Gene Therapies, Inc.(TSHA)1,246,0331,246,0330$2.88M$4.07M0.75%+$1.20M
Nuvation Bio Inc.CL A(NUVB)772,6521,020,547+247,895$1.51M$3.78M0.70%+$2.27M
Aclaris Therapeutics, Inc.(ACRS)1,390,0281,566,840+176,812$1.97M$2.98M0.55%+$1.00M
CRISPR Therapeutics AGNAMEN AKT(CRSP)44,62541,226-3,399$2.17M$2.67M0.49%+$501.3K
Travere Therapeutics, Inc.(TVTX)110,719110,7190$1.64M$2.65M0.49%+$1.01M
Edwards Lifesciences Corp39,47333,640-5,833$3.09M$2.62M0.48%-$471.0K
Neurocrine Biosciences, Inc.(NBIX)13,33418,117+4,783$1.68M$2.54M0.47%+$867.3K
Stoke Therapeutics, Inc.(STOK)125,861105,427-20,434$1.43M$2.48M0.46%+$1.05M
Pyxis Oncology, Inc.(PYXS)1,037,4211,037,4210$1.14M$2.30M0.43%+$1.16M
BioNTech SE(BNTX)25,20619,614-5,592$2.68M$1.93M0.36%-$749.4K
Bicycle Therapeutics Plc-Adr248,934221,071-27,863$1.73M$1.71M0.32%-$19.0K
Aldeyra Therapeutics, Inc.ADR(ALDX)225,465225,4650$863.5K$1.18M0.22%+$313.4K
Humana Inc.(HUM)3,9853,9850$974.3K$1.04M0.19%+$62.5K
Oruka Therapeutics, Inc.(ORKA)059,985+59,985$0$791.3K0.15%+$791.3K
Abeona Therapeutics Inc.(ABEO)108,865108,8650$618.4K$574.8K0.11%-$43.5K
UroGen Pharma Ltd.(URGN)24,50024,5000$335.6K$488.8K0.09%+$153.1K
Proqr Therapeutics NvSHS EURO
SHS EURO
0188,807+188,807$0$402.2K0.07%+$402.2K
Akari Therapeutics, Plc(AKTX)146,024146,0240$170.8K$147.5K0.03%-$23.4K
Generation Bio Co150,47515,047-135,428$48.2K$92.1K0.02%+$43.9K
Alumis Inc143,4370-143,437$430.3K$0—-$430.3K
Karyopharm Therapeutics Inc.(KPTI)187,9110-187,911$809.9K$0—-$809.9K
STAAR Surgical Company(STAA)791,8790-791,879$13.29M$0—-$13.29M
Yarrow Bioscience Inc(YARW)445,4340-445,434$735.0K$0—-$735.0K
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Palo Alto Investors LP — 13F Holdings — Q3 2025 | TickerTrail