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13F-HR filed by Palo Alto Investors LP

Palo Alto Investors LP filed this 13F-HR for the quarter ended 2025-06-30, filed 2025-08-14, with 45 holding rows worth $469,996,676.

Accession
0001306923-25-000016
Filed
2025-08-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2025

A holdings report, 45 entries on the cover page, a total value of $469,996,676 stated on the cover page (in dollars after the unit check, H1), rows summing to $469,996,676 with VALUE read as dollars as filed, 13F file number 028-11013. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
INSMED INC COM PAR $.01457669307Stock865,113$87,064,972dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM2,563,209$55,288,418dollars as filed
BIOMARIN PHARMACEUTICAL INC09061G101COM840,470$46,200,636dollars as filed
AMICUS THERAPEUTICS INC03152W109COM5,610,513$32,148,239dollars as filed
UNITED THERAPEUTICS CORP DEL COM91307C102Stock95,482$27,436,753dollars as filed
BIOGEN INC COM09062X103Stock205,759$25,841,273dollars as filed
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock75,535$24,631,208dollars as filed
PTC THERAPEUTICS INC69366J200COM406,469$19,851,946dollars as filed
ANAPTYSBIO INC032724106COM812,821$18,044,626dollars as filed
NOVOCURE LTDG6674U108ORD SHS962,396$17,130,649dollars as filed
STAAR SURGICAL CO COM PAR $0.01852312305Stock791,879$13,287,730dollars as filed
AGIOS PHARMACEUTICALS INC00847X104COM268,783$8,939,723dollars as filed
PROTHENA CORP PLC SHSG72800108Stock1,274,753$7,737,751dollars as filed
DISC MEDICINE INC COM254604101Stock145,691$7,715,795dollars as filed
ALIGN TECHNOLOGY INC COM016255101Stock37,772$7,151,373dollars as filed
GOSSAMER BIO INC COM38341P102Stock5,739,013$7,058,986dollars as filed
EHEALTH INC28238P109COM1,577,850$6,863,648dollars as filed
ALKERMES PLCG01767105SHS221,021$6,323,411dollars as filed
IOVANCE BIOTHERAPEUTICS INC462260100COM3,429,329$5,898,446dollars as filed
SYNDAX PHARMACEUTICALS INC87164F105COM444,367$4,161,497dollars as filed
AVIDITY BIOSCIENCES INC COM05370A108Stock118,886$3,376,362dollars as filed
DENALI THERAPEUTICS INC COM24823R105Stock239,809$3,354,928dollars as filed
MIRUM PHARMACEUTICALS INC604749101COM64,700$3,292,583dollars as filed
EDWARDS LIFESCIENCES CORP COM28176E108Stock39,473$3,087,183dollars as filed
TAYSHA GENE THERAPIES INC877619106COMMON STOCK1,246,033$2,878,336dollars as filed
BIONTECH SE SPONSORED ADS09075V102ADR25,206$2,683,683dollars as filed
DYNE THERAPEUTICS INC COM26818M108Stock264,976$2,522,572dollars as filed
CRISPR THERAPEUTICS AG NAMEN AKTH17182108Stock44,625$2,170,560dollars as filed
ACLARIS THERAPEUTICS INC COM00461U105Stock1,390,028$1,973,840dollars as filed
ULTRAGENYX PHARMACEUTICAL IN90400D108COM48,750$1,772,550dollars as filed
BICYCLE THERAPEUTICS PLC-ADR088786108SPONSORED ADS248,934$1,730,091dollars as filed
NEUROCRINE BIOSCIENCES INC64125C109COM13,334$1,675,950dollars as filed
TRAVERE THERAPEUTICS INC89422G107COM110,719$1,638,641dollars as filed
NUVATION BIO INC COM CL A67080N101Stock772,652$1,506,671dollars as filed
STOKE THERAPEUTICS INC86150R107COM125,861$1,428,522dollars as filed
PYXIS ONCOLOGY INC COMMON STOCK747324101Stock1,037,421$1,141,163dollars as filed
HUMANA INC COM444859102Stock3,985$974,253dollars as filed
ALDEYRA THERAPEUTICS INC01438T106COM225,465$863,531dollars as filed
KARYOPHARM THERAPEUTICS INC48576U205COMMON STOCK187,911$809,896dollars as filed
VYNE THERAPEUTICS INC92941V308COM445,434$734,966dollars as filed
ABEONA THERAPEUTICS INC00289Y206COM NEW108,865$618,353dollars as filed
ALUMIS INC022307102COM143,437$430,311dollars as filed
UROGEN PHARMA LTDM96088105COMMON STOCK24,500$335,650dollars as filed
AKARI THERAPEUTICS PLC00972G207SPONSORED ADR146,024$170,834dollars as filed
GENERATION BIO CO37148K100COM150,475$48,167dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001306923-25-000016this filing2025-08-14acceptance time not in the bulk data set