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13F-HR filed by Palo Alto Investors LP

Palo Alto Investors LP filed this 13F-HR for the quarter ended 2025-03-31, filed 2025-05-15, with 44 holding rows worth $525,145,307.

Accession
0001306923-25-000014
Filed
2025-05-15
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q1 2025

A holdings report, 44 entries on the cover page, a total value of $525,145,307 stated on the cover page (in dollars after the unit check, H1), rows summing to $525,145,308 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 $.01457669307Stock987,153$75,309,902dollars as filed
BIOMARIN PHARMACEUTICAL INC09061G101COM991,207$70,068,423dollars as filed
AMICUS THERAPEUTICS INC03152W109COM7,345,002$59,935,216dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM2,663,925$44,247,794dollars as filed
UNITED THERAPEUTICS CORP DEL COM91307C102Stock105,228$32,438,636dollars as filed
BIOGEN INC COM09062X103Stock204,923$28,041,663dollars as filed
ALNYLAM PHARMACEUTICALS INC COM02043Q107Stock83,488$22,543,430dollars as filed
PTC THERAPEUTICS INC69366J200COM404,196$20,597,828dollars as filed
PROTHENA CORP PLC SHSG72800108Stock1,659,734$20,539,208dollars as filed
ANAPTYSBIO INC032724106COM1,020,713$18,975,055dollars as filed
NOVOCURE LTDG6674U108ORD SHS1,002,061$17,856,727dollars as filed
SAREPTA THERAPEUTICS INC803607100COM210,258$13,418,666dollars as filed
EHEALTH INC28238P109COM1,684,336$11,251,364dollars as filed
IOVANCE BIOTHERAPEUTICS INC462260100COM3,211,314$10,693,676dollars as filed
STAAR SURGICAL CO COM PAR $0.01852312305Stock525,017$9,256,050dollars as filed
AGIOS PHARMACEUTICALS INC00847X104COM276,578$8,103,735dollars as filed
ALKERMES PLCG01767105SHS221,513$7,314,359dollars as filed
GOSSAMER BIO INC COM38341P102Stock6,276,893$6,904,582dollars as filed
ALIGN TECHNOLOGY INC COM016255101Stock37,772$6,000,460dollars as filed
SYNDAX PHARMACEUTICALS INC87164F105COM444,367$5,459,049dollars as filed
ACELYRIN INC00445A100COM1,792,895$4,428,451dollars as filed
DYNE THERAPEUTICS INC COM26818M108Stock333,391$3,487,270dollars as filed
MIRUM PHARMACEUTICALS INC604749101COM64,700$2,914,735dollars as filed
EDWARDS LIFESCIENCES CORP COM28176E108Stock39,473$2,861,003dollars as filed
VERVE THERAPEUTICS INC92539P101COM575,817$2,631,484dollars as filed
BIONTECH SE SPONSORED ADS09075V102ADR25,206$2,295,258dollars as filed
BICYCLE THERAPEUTICS PLC-ADR088786108SPONSORED ADS248,934$2,113,450dollars as filed
TRAVERE THERAPEUTICS INC89422G107COM110,719$1,984,084dollars as filed
TAYSHA GENE THERAPIES INC877619106COMMON STOCK1,419,468$1,973,061dollars as filed
NEUROCRINE BIOSCIENCES INC64125C109COM13,334$1,474,740dollars as filed
NUVATION BIO INC COM CL A67080N101Stock772,652$1,359,868dollars as filed
ALDEYRA THERAPEUTICS INC01438T106COM225,465$1,296,424dollars as filed
KARYOPHARM THERAPEUTICS INC48576U106COM324,032$1,211,880dollars as filed
ACLARIS THERAPEUTICS INC COM00461U105Stock776,028$1,187,323dollars as filed
HUMANA INC COM444859102Stock3,985$1,054,431dollars as filed
PYXIS ONCOLOGY INC COMMON STOCK747324101Stock1,037,421$1,016,569dollars as filed
STOKE THERAPEUTICS INC86150R107COM125,861$836,976dollars as filed
VYNE THERAPEUTICS INC92941V308COM445,434$703,786dollars as filed
ABEONA THERAPEUTICS INC00289Y206COM NEW108,865$518,197dollars as filed
UROGEN PHARMA LTDM96088105COMMON STOCK24,500$270,970dollars as filed
Instil Bio Inc45783C200COM NEW11,165$193,824dollars as filed
AKARI THERAPEUTICS PLC00972G207SPONSORED ADR146,024$181,070dollars as filed
RELMADA THERAPEUTICS INC75955J402COMMON STOCK495,146$133,689dollars as filed
GENERATION BIO CO37148K100COM150,475$60,942dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001306923-25-000014this filing2025-05-15acceptance time not in the bulk data set