×

Subscribe Today

Get our free articles delivered directly to your email!

Continue reading

  • Gurus
  • Other
  • PALO ALTO INVESTORS LP (Data extracted from 13F, 13D, 13G and Form 4)

PALO ALTO INVESTORS LP

AUM: $1.06 B
13-F Portfolio Value: $540.39 M
Last 13-F Filed: Q3 2025
Concentration in top 10: 67.24%
Filter by:
Quarter to View:
Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
INSMINSMED INC13.11%491,805$70,824,838-373,308-43.15%$144.0113F
PTCTPTC THERAPEUTICS INC9.8%862,613$52,938,560456,144112.22%$61.3713F
ACADACADIA PHARMACEUTICALS INC9.74%2,466,684$52,639,037-96,525-3.77%$21.3413F
FOLDAMICUS THERAPEUTICS INC7.83%5,367,798$42,298,248-242,715-4.33%$7.8813F
BMRNBIOMARIN PHARMACEUTICAL INC7.56%754,007$40,837,019-86,463-10.29%$54.1613F
BIIBBIOGEN INC4.81%185,661$26,007,393-20,098-9.77%$140.0813F
UTHRUNITED THERAPEUTICS CORP4.51%58,186$24,392,153-37,296-39.06%$419.2113F
ANABANAPTYSBIO INC3.82%673,520$20,623,182-139,301-17.14%$30.6213F
IOVAIOVANCE BIOTHERAPEUTICS INC3.06%7,618,132$16,531,3464,188,803122.15%$2.1713F
NVCRNOVOCURE LTD3%1,256,159$16,229,574293,76330.52%$12.9213F
DYNDYNE THERAPEUTICS INC2.96%1,262,674$15,972,826997,698376.52%$12.6513F
IRONDISC MEDICINE INC2.74%224,300$14,821,74478,60953.96%$66.0813F
ALNYALNYLAM PHARMACEUTICALS INC2.73%32,320$14,737,920-43,215-57.21%$45613F
GOSSGOSSAMER BIO INC2.66%5,464,349$14,371,238-274,664-4.79%$2.6313F
PRTAPROTHENA CORP PLC2.39%1,324,028$12,922,51349,2753.87%$9.7613F
RAREULTRAGENYX PHARMACEUTICAL IN2.06%369,531$11,115,492320,781658.01%$30.0813F
AGIOAGIOS PHARMACEUTICALS INC1.97%265,497$10,657,050-3,286-1.22%$40.1413F
SNDXSYNDAX PHARMACEUTICALS INC1.86%654,930$10,076,098210,56347.38%$15.3813F
EHTHEHEALTH INC1.23%1,544,619$6,657,308-33,231-2.11%$4.3113F
DNLIDENALI THERAPEUTICS INC1.1%408,006$5,924,247168,19770.14%$14.5213F
ALGNALIGN TECHNOLOGY INC1.06%45,735$5,726,9377,96321.08%$125.2213F
ALKSALKERMES PLC1.02%183,938$5,518,140-37,083-16.78%$3013F
RNAAVIDITY BIOSCIENCES INC0.89%109,831$4,785,337-9,055-7.62%$43.5713F
MIRMMIRUM PHARMACEUTICALS INC0.88%64,700$4,743,157No Change$73.3113F
CDNACAREDX INC0.85%316,204$4,597,606316,204New$14.5413F
TSHATAYSHA GENE THERAPIES INC0.75%1,246,033$4,074,528No Change$3.2713F
NUVBNUVATION BIO INC0.7%1,020,547$3,776,024247,89532.08%$3.713F
ACRSACLARIS THERAPEUTICS INC0.55%1,566,840$2,976,996176,81212.72%$1.913F
TVTXTRAVERE THERAPEUTICS INC0.49%110,719$2,646,184No Change$23.913F
CRSPCRISPR THERAPEUTICS AG0.49%41,226$2,671,857-3,399-7.62%$64.8113F
EWEDWARDS LIFESCIENCES CORP0.48%33,640$2,616,183-5,833-14.78%$77.7713F
NBIXNEUROCRINE BIOSCIENCES INC0.47%18,117$2,543,2644,78335.87%$140.3813F
STOKSTOKE THERAPEUTICS INC0.46%105,427$2,477,535-20,434-16.24%$23.513F
PYXSPYXIS ONCOLOGY INC0.43%1,037,421$2,303,075No Change$2.2213F
BNTXBIONTECH SE-ADR0.36%19,614$1,934,333-5,592-22.19%$98.6213F
BCYCBICYCLE THERAPEUTICS PLC-ADR0.32%221,071$1,711,090-27,863-11.19%$7.7413F
ALDXALDEYRA THERAPEUTICS INC0.22%225,465$1,176,927No Change$5.2213F
HUMHUMANA INC0.19%3,985$1,036,777No Change$260.1713F
ORKAORUKA THERAPEUTICS INC0.15%59,985$791,31059,985New$13.1913F
ABEOABEONA THERAPEUTICS INC0.11%108,865$574,807No Change$5.2813F
URGNUROGEN PHARMA LTD0.09%24,500$488,775No Change$19.9513F
PRQRPROQR THERAPEUTICS NV0.07%188,807$402,159188,807New$2.1313F
AKTXAKARI THERAPEUTICS PLC-ADR0.03%146,024$147,484No Change$1.0113F
GBIOGENERATION BIO CO0.02%15,047$92,088-135,428-90%$6.1213F
ALMSALUMIS INC-143,437Exited13F
KPTIKARYOPHARM THERAPEUTICS INC-187,911Exited13F
STAASTAAR SURGICAL CO-791,879Exited13F
VYNEVYNE THERAPEUTICS INC PIPE-445,434Exited13F