Palo Alto Investors LP Long-Term Concentrated

Location: Palo Alto, CA

CIK: 0001306923 · Show all filings

Period: Q2 2026 (← Previous)

Filing Date: Aug 17, 2026

Total Value: $724M (94.4% shares, 5.6% debt)

Holdings (52)

Decreased Positions (8)

Unchanged Positions (35)

INSM INSMED INC 6.1%
Value $44.14M Shares 413,980 Est. Cost $17.79 Unrealized
PTCT PTC THERAPEUTICS INC 10.4%
Value $74.95M Shares 918,846 Est. Cost $46.78 Unrealized
RARE ULTRAGENYX PHARMACEUTICAL IN 2.8%
Value $19.92M Shares 596,495 Est. Cost $29.43 Unrealized
DYN DYNE THERAPEUTICS INC 5.1%
Value $36.59M Shares 1,647,521 Est. Cost $13.45 Unrealized
CDNA CAREDX INC 2.1%
Value $15.16M Shares 531,870 Est. Cost $15.56 Unrealized
NVCR NOVOCURE LTD 2.7%
Value $19.4M Shares 1,280,439 Est. Cost $34.92 Unrealized
BCAX BICARA THERAPEUTICS INC 2.3%
Value $16.34M Shares 550,408 Est. Cost $16.72 Unrealized
BIIB BIOGEN INC 4.2%
Value $30.31M Shares 140,279 Est. Cost $256.18 Unrealized
ALKS ALKERMES PLC 1.8%
Value $12.71M Shares 242,560 Est. Cost $24.20 Unrealized
UTHR UNITED THERAPEUTICS CORP 4.7%
Value $33.91M Shares 62,587 Est. Cost $118.03 Unrealized
TSHA TAYSHA GENE THERAPIES INC 1.3%
Value $9.475M Shares 1,391,382 Est. Cost $2.31 Unrealized
ACRS ACLARIS THERAPEUTICS INC 1.2%
Value $8.535M Shares 1,613,430 Est. Cost $1.50 Unrealized
CAPR CAPRICOR THERAPEUTICS INC 0.8%
Value $5.533M Shares 229,763 Est. Cost $13.24 Unrealized
SNDX SYNDAX PHARMACEUTICALS INC 2.6%
Value $18.91M Shares 864,986 Est. Cost $16.22 Unrealized
CMPS COMPASS PATHWAYS PLC ADR 0.2%
Value $1.636M Shares 115,616 Est. Cost $6.90 Unrealized
HUM HUMANA INC 0.2%
Value $1.583M Shares 3,985 Est. Cost $369.63 Unrealized
AGIO AGIOS PHARMACEUTICALS INC 1.1%
Value $7.927M Shares 213,601 Est. Cost $33.17 Unrealized
NBIX NEUROCRINE BIOSCIENCES INC 0.4%
Value $3.053M Shares 18,117 Est. Cost $129.01 Unrealized
CYTK CYTOKINETICS INC 0.4%
Value $2.743M Shares 32,195 Est. Cost $64.44 Unrealized
ANNX ANNEXON INC 2.3%
Value $16.83M Shares 2,948,090 Est. Cost $4.19 Unrealized
URGN UROGEN PHARMA LTD 0.1%
Value $902K Shares 24,500 Est. Cost $27.01 Unrealized
BMRN BIOMARIN PHARMACEUTICAL INC 5.4%
Value $39.07M Shares 682,777 Est. Cost $83.16 Unrealized
EW EDWARDS LIFESCIENCES CORP 0.4%
Value $3.043M Shares 33,640 Est. Cost $72.66 Unrealized
EHTH EHEALTH INC 0.3%
Value $2.209M Shares 1,482,797 Est. Cost $38.13 Unrealized
CRSP CRISPR THERAPEUTICS AG 0.3%
Value $2.16M Shares 39,605 Est. Cost $38.70 Unrealized
XERS XERIS BIOPHARMA HOLDINGS INC 0.1%
Value $827K Shares 104,410 Est. Cost $7.21 Unrealized
ABEO ABEONA THERAPEUTICS INC 0.1%
Value $673K Shares 108,865 Est. Cost $6.04 Unrealized
XENE XENON PHARMACEUTICALS INC 0.4%
Value $3.099M Shares 51,345 Est. Cost $42.00 Unrealized
BNTX BIONTECH SE-ADR 0.3%
Value $1.825M Shares 19,614 Est. Cost $118.77 Unrealized
BCYC BICYCLE THERAPEUTICS PLC-ADR 0.1%
Value $856K Shares 201,890 Est. Cost $16.07 Unrealized
ALDX ALDEYRA THERAPEUTICS INC 0.0%
Value $332K Shares 155,709 Est. Cost $5.95 Unrealized
INSP INSPIRE MEDICAL SYSTEMS INC 0.1%
Value $391K Shares 8,772 Est. Cost $95.68 Unrealized
PRQR PROQR THERAPEUTICS NV 0.0%
Value $351K Shares 188,807 Est. Cost $2.18 Unrealized
MDGL MADRIGAL PHARMACEUTICALS INC 0.1%
Value $960K Shares 1,787 Est. Cost $492.48 Unrealized
STOK STOKE THERAPEUTICS INC 0.4%
Value $2.769M Shares 84,631 Est. Cost $9.90 Unrealized