Fund HoldingsPalo Alto Investors LP

Total Portfolio Value
$718.35M
Total Bought
$134.26M
Total Sold
$89.03M
Net Transaction
+$45.23M
Filing Period:
Securities
SharesValue ($K)
Q3 2025
Q4 2025
Change
Q3 2025
Q4 2025
Weight (%)
Change
AMICUS THERAPEUTICS INC
COM
5,367,7985,205,767-162,03142,29874,13010.32%+31,832
PTC THERAPEUTICS INC(PTCT)862,613903,916+41,30352,93968,6619.56%+15,723
INSMED INC(INSM)491,805489,482-2,32370,82585,18911.86%+14,365
ACADIA PHARMACEUTICALS INC2,466,6842,484,031+17,34752,63966,3489.24%+13,709
COMPASS THERAPEUTICS INC02,532,419+2,532,419013,5991.89%+13,599
ANAPTYSBIO INC673,520690,032+16,51220,62333,4534.66%+12,830
DYNE THERAPEUTICS INC(DYN)1,262,6741,472,197+209,52315,97328,7964.01%+12,823
ANNEXON INC(ANNX)02,384,192+2,384,192011,9691.67%+11,969
DISC MEDICINE INC(IRON)224,300317,456+93,15614,82225,2093.51%+10,387
MIRUM PHARMACEUTICALS INC(MIRM)64,700156,421+91,7214,74312,3561.72%+7,613
SYNDAX PHARMACEUTICALS INC(SNDX)654,930794,507+139,57710,07616,6932.32%+6,616
CAPRICOR THERAPEUTICS INC0226,304+226,30406,5310.91%+6,531
BIOGEN INC(BIIB)185,661183,571-2,09026,00732,3074.50%+6,299
BICARA THERAPEUTICS INC0298,575+298,57505,0250.70%+5,025
DENALI THERAPEUTICS INC(DNLI)408,006641,239+233,2335,92410,5871.47%+4,663
CAREDX INC(CDNA)316,204478,220+162,0164,5989,0101.25%+4,412
XENON PHARMACEUTICALS INC(XENE)096,519+96,51904,3260.60%+4,326
UNITED THERAPEUTICS CORP(UTHR)58,18658,186024,39228,3513.95%+3,959
BIOMARIN PHARMACEUTICAL INC(BMRN)754,007746,256-7,75140,83744,3506.17%+3,513
IOVANCE BIOTHERAPEUTICS INC(IOVA)7,618,1327,116,676-501,45616,53119,4292.70%+2,897
TAYSHA GENE THERAPIES INC(TSHA)1,246,0331,183,195-62,8384,0756,5080.91%+2,433
ACLARIS THERAPEUTICS INC(ACRS)1,566,8401,566,84002,9774,7160.66%+1,739
TRAVERE THERAPEUTICS INC(TVTX)110,719110,71902,6464,2310.59%+1,584
ALKERMES PLC(ALKS)183,938242,560+58,6225,5186,7870.94%+1,269
NUVATION BIO INC(NUVB)1,020,547538,079-482,4683,7764,8210.67%+1,045
ORUKA THERAPEUTICS INC(ORKA)59,98559,98507911,8180.25%+1,027
INSPIRE MEDICAL SYSTEMS INC(INSP)08,772+8,77208090.11%+809
COMPASS PATHWAYS PLC ADR(CMPS)0115,616+115,61607980.11%+798
ALIGN TECHNOLOGY INC45,73541,520-4,2155,7276,4830.90%+756
NOVOCURE LTD(NVCR)1,256,1591,298,964+42,80516,23016,7962.34%+566
EHEALTH INC1,544,6191,531,429-13,1906,6577,0450.98%+387
EDWARDS LIFESCIENCES CORP33,64033,64002,6162,8680.40%+252
GENERATION BIO CO015,047+15,0470850.01%+85
UROGEN PHARMA LTD(URGN)24,50024,50004895740.08%+85
NEUROCRINE BIOSCIENCES INC(NBIX)18,11718,11702,5432,5700.36%+26
ABEONA THERAPEUTICS INC108,865108,86505755740.08%-1
ALDEYRA THERAPEUTICS INC225,465225,46501,1771,1680.16%-9
HUMANA INC(HUM)3,9853,98501,0371,0210.14%-16
PROQR THERAPEUTICS NV
SHS EURO
188,807188,80704023810.05%-21
BIONTECH SE-ADR(BNTX)19,61419,61401,9341,8670.26%-67
GENERATION BIO CO15,0470-15,047920-92
AKARI THERAPEUTICS PLC-ADR146,024146,0240147420.01%-105
BICYCLE THERAPEUTICS PLC-ADR221,071221,07101,7111,5650.22%-146
STOKE THERAPEUTICS INC(STOK)105,42772,022-33,4052,4782,2860.32%-192
PROTHENA CORP PLC
SHS
1,324,0281,320,510-3,51812,92312,6111.76%-312
ULTRAGENYX PHARMACEUTICAL IN(RARE)369,531461,294+91,76311,11510,6101.48%-506
GOSSAMER BIO INC5,464,3494,471,592-992,75714,37113,8621.93%-509
CRISPR THERAPEUTICS AG(CRSP)41,22641,22602,6722,1620.30%-510
PYXIS ONCOLOGY INC1,037,4211,037,42102,3031,1930.17%-1,110
AVIDITY BIOSCIENCES INC109,8310-109,8314,7850-4,785
AGIOS PHARMACEUTICALS INC(AGIO)265,497212,499-52,99810,6575,7840.81%-4,873
ALNYLAM PHARMACEUTICALS INC(ALNY)32,3200-32,32014,7380-14,738
Page 1 of 1