Fund HoldingsPalo Alto Investors LP

Total Portfolio Value
$653.86M
Total Bought
$267.03M
Total Sold
$319.11M
Net Transaction
-$52.08M
Filing Period:
Securities
SharesValue ($K)
Q4 2025
Q1 2026
Change
Q4 2025
Q1 2026
Weight (%)
Change
INSMED INC(INSM)0415,269+415,269067,90510.39%+67,905
DYNE THERAPEUTICS INC(DYN)01,652,972+1,652,972029,9684.58%+29,968
BIOGEN INC(BIIB)0140,719+140,719025,7983.95%+25,798
IOVANCE BIOTHERAPEUTICS INC(IOVA)06,349,563+6,349,563022,2873.41%+22,287
MIRUM PHARMACEUTICALS INC(MIRM)156,421325,175+168,75412,35630,0404.59%+17,684
NOVOCURE LTD(NVCR)01,280,439+1,280,439013,9572.13%+13,957
PROTHENA CORP PLC
SHS
01,208,568+1,208,568011,7471.80%+11,747
CELLDEX THERAPEUTICS INC(CLDX)0296,408+296,40809,4021.44%+9,402
UNITED THERAPEUTICS CORP(UTHR)58,18662,809+4,62328,35137,2445.70%+8,893
ALKERMES PLC(ALKS)0242,560+242,56008,5771.31%+8,577
TRAVERE THERAPEUTICS INC(TVTX)0230,453+230,45306,8471.05%+6,847
TAYSHA GENE THERAPIES INC(TSHA)01,391,382+1,391,38206,2190.95%+6,219
BICARA THERAPEUTICS INC298,575550,408+251,8335,02510,9481.67%+5,923
ANNEXON INC(ANNX)2,384,1922,948,090+563,89811,96916,3322.50%+4,364
SYNDAX PHARMACEUTICALS INC(SNDX)794,507864,986+70,47916,69320,2063.09%+3,513
CYTOKINETICS INC(CYTK)032,195+32,19502,1220.32%+2,122
ANAPTYSBIO INC690,032638,161-51,87133,45335,3925.41%+1,940
ULTRAGENYX PHARMACEUTICAL IN(RARE)461,294596,495+135,20110,61012,4971.91%+1,887
BIONTECH SE-ADR(BNTX)019,614+19,61401,7430.27%+1,743
PYXIS ONCOLOGY INC01,010,510+1,010,51001,4750.23%+1,475
AGIOS PHARMACEUTICALS INC(AGIO)212,499213,601+1,1025,7847,2261.11%+1,442
ACLARIS THERAPEUTICS INC(ACRS)1,566,8401,613,430+46,5904,7166,0500.93%+1,334
VERASTEM INC0246,093+246,09301,3040.20%+1,304
ORUKA THERAPEUTICS INC(ORKA)59,98559,98501,8182,9420.45%+1,124
BICYCLE THERAPEUTICS PLC-ADR0201,890+201,89009370.14%+937
MADRIGAL PHARMACEUTICALS INC(MDGL)01,787+1,78709350.14%+935
ALIGN TECHNOLOGY INC41,52041,52006,4837,1181.09%+634
XERIS BIOPHARMA HOLDINGS INC0104,410+104,41006060.09%+606
DISC MEDICINE INC(IRON)317,456401,719+84,26325,20925,6863.93%+477
STOKE THERAPEUTICS INC(STOK)72,02284,631+12,6092,2862,7560.42%+470
CAPRICOR THERAPEUTICS INC226,304229,763+3,4596,5316,9851.07%+454
ALDEYRA THERAPEUTICS INC0155,709+155,70902630.04%+263
CAREDX INC(CDNA)478,220531,870+53,6509,0109,2331.41%+224
AKARI THERAPEUTICS PLC-ADR146,0240-146,024420-42
PROQR THERAPEUTICS NV
SHS EURO
188,807188,80703813060.05%-76
GENERATION BIO CO15,0470-15,047850-85
ABEONA THERAPEUTICS INC108,865108,86505744880.07%-86
UROGEN PHARMA LTD(URGN)24,50024,50005744410.07%-133
COMPASS PATHWAYS PLC ADR(CMPS)115,616115,61607986390.10%-158
EDWARDS LIFESCIENCES CORP33,64033,64002,8682,6940.41%-174
NEUROCRINE BIOSCIENCES INC(NBIX)18,11718,11702,5702,3870.37%-183
CRISPR THERAPEUTICS AG(CRSP)41,22639,605-1,6212,1621,8840.29%-278
HUMANA INC(HUM)3,9853,98501,0216910.11%-330
INSPIRE MEDICAL SYSTEMS INC(INSP)8,7728,77208094520.07%-357
ALDEYRA THERAPEUTICS INC225,4650-225,4651,1680-1,168
PYXIS ONCOLOGY INC1,037,4210-1,037,4211,1930-1,193
XENON PHARMACEUTICALS INC(XENE)96,51951,345-45,1744,3262,9860.46%-1,340
BICYCLE THERAPEUTICS PLC-ADR221,0710-221,0711,5650-1,565
BIONTECH SE-ADR(BNTX)19,6140-19,6141,8670-1,867
ACADIA PHARMACEUTICALS INC2,484,0312,872,695+388,66466,34863,9469.78%-2,402
NUVATION BIO INC(NUVB)538,079508,846-29,2334,8212,1830.33%-2,638
TRAVERE THERAPEUTICS INC(TVTX)110,7190-110,7194,2310-4,231
EHEALTH INC1,531,4291,482,797-48,6327,0451,9130.29%-5,132
COMPASS THERAPEUTICS INC2,532,4191,514,504-1,017,91513,5998,0121.23%-5,587
BIOMARIN PHARMACEUTICAL INC(BMRN)746,256685,182-61,07444,35038,7065.92%-5,644
PTC THERAPEUTICS INC(PTCT)903,916921,607+17,69168,66162,7899.60%-5,872
DENALI THERAPEUTICS INC(DNLI)641,239234,582-406,65710,5874,5040.69%-6,083
TAYSHA GENE THERAPIES INC(TSHA)1,183,1950-1,183,1956,5080-6,508
ALKERMES PLC(ALKS)242,5600-242,5606,7870-6,787
PROTHENA CORP PLC
SHS
1,320,5100-1,320,51012,6110-12,611
GOSSAMER BIO INC4,471,5920-4,471,59213,8620-13,862
NOVOCURE LTD(NVCR)1,298,9640-1,298,96416,7960-16,796
IOVANCE BIOTHERAPEUTICS INC(IOVA)7,116,6760-7,116,67619,4290-19,429
DYNE THERAPEUTICS INC(DYN)1,472,1970-1,472,19728,7960-28,796
BIOGEN INC(BIIB)183,5710-183,57132,3070-32,307
AMICUS THERAPEUTICS INC
COM
5,205,7671,113,045-4,092,72274,13016,0952.46%-58,035
INSMED INC(INSM)489,4820-489,48285,1890-85,189
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