0001306923-20-000015.txt : 20200814 0001306923-20-000015.hdr.sgml : 20200814 20200814161520 ACCESSION NUMBER: 0001306923-20-000015 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20200630 FILED AS OF DATE: 20200814 DATE AS OF CHANGE: 20200814 EFFECTIVENESS DATE: 20200814 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Palo Alto Investors LP CENTRAL INDEX KEY: 0001306923 IRS NUMBER: 770558164 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-11013 FILM NUMBER: 201105252 BUSINESS ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 BUSINESS PHONE: 650-325-0772 MAIL ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 FORMER COMPANY: FORMER CONFORMED NAME: Palo Alto Investors, LLC DATE OF NAME CHANGE: 20041025 13F-HR 1 primary_doc.xml 13F-HR LIVE false false false 0001306923 XXXXXXXX 06-30-2020 06-30-2020 Palo Alto Investors LP
470 UNIVERSITY AVE PALO ALTO CA 94301
13F HOLDINGS REPORT 028-11013 N
Angela Nguyen-Dinh Chief Compliance Officer (650) 325-0772 Angela Nguyen-Dinh Palo Alto CA 08-14-2020 0 41 1665451 false
INFORMATION TABLE 2 table1.xml ABIOMED INC COM 003654100 118928 492333 SH SOLE 0 492333 0 0 ACADIA PHARMACEUTICALS INC COM 004225108 75851 1564900 SH SOLE 0 1564900 0 0 AIMMUNE THERAPEUTICS INC COM 00900T107 55447 3318212 SH SOLE 0 3318212 0 0 ALDEYRA THERAPEUTICS INC COM 01438T106 306 73500 SH SOLE 0 73500 0 0 ALEXION PHARMACEUTICALS INC COM 015351109 49905 444629 SH SOLE 0 444629 0 0 ALIGN TECHNOLOGY INC COM 016255101 18526 67505 SH SOLE 0 67505 0 0 ALIMERA SCIENCES INC COM 016259202 1266 200919 SH SOLE 0 200919 0 0 AMAG PHARMACEUTICALS INC COM 00163U106 22641 2959587 SH SOLE 0 2959587 0 0 AMICUS THERAPEUTICS INC COM 03152W109 110607 7334714 SH SOLE 0 7334714 0 0 APREA THERAPEUTICS INC COM 03836J102 1832 47234 SH SOLE 0 47234 0 0 ATHENEX INC COM 04685N103 2548 185200 SH SOLE 0 185200 0 0 BIOMARIN PHARMACEUTICAL INC COM 09061G101 173410 1405950 SH SOLE 0 1405950 0 0 CLOVIS ONCOLOGY INC COM 189464100 29440 4361411 SH SOLE 0 4361411 0 0 CYTOKINETICS INC COM 23282W605 2915 123686 SH SOLE 0 123686 0 0 DICERNA PHARMACEUTICALS INC COM 253031108 8428 331813 SH SOLE 0 331813 0 0 EPIZYME INC COM 29428V104 88550 5513676 SH SOLE 0 5513676 0 0 GOSSAMER BIO INC COM 38341P102 2655 204214 SH SOLE 0 204214 0 0 IDERA PHARMACEUTICALS INC COM 45168K405 138 77044 SH SOLE 0 77044 0 0 IMMUNOMEDICS INC COM 452907108 183685 5182983 SH SOLE 0 5182983 0 0 INSMED INC COM 457669307 165303 6002289 SH SOLE 0 6002289 0 0 INTRA-CELLULAR THERAPIES INC COM 46116X101 960 37400 SH SOLE 0 37400 0 0 KALEIDO BIOSCIENCES INC COM 483347100 5843 786400 SH SOLE 0 786400 0 0 KARYOPHARM THERAPEUTICS INC COM 48576U106 79916 4219452 SH SOLE 0 4219452 0 0 KEZAR LIFE SCIENCES INC COM 49372L100 1062 205086 SH SOLE 0 205086 0 0 MAGENTA THERAPEUTICS INC COM 55910K108 1461 194600 SH SOLE 0 194600 0 0 MARINUS PHARMACEUTICALS INC COM 56854Q101 318 125321 SH SOLE 0 125321 0 0 MINERVA NEUROSCIENCES INC COM 603380106 131 36319 SH SOLE 0 36319 0 0 MOMENTA PHARMACEUTICALS INC COM 60877T100 49224 1479524 SH SOLE 0 1479524 0 0 PROTHENA CORP PLC COM G72800108 8065 771065 SH SOLE 0 771065 0 0 PUMA BIOTECHNOLOGY INC COM 74587V107 14017 1343897 SH SOLE 0 1343897 0 0 RETROPHIN INC COM 761299106 959 47000 SH SOLE 0 47000 0 0 REVANCE THERAPEUTICS INC COM 761330109 41621 1704372 SH SOLE 0 1704372 0 0 RIGEL PHARMACEUTICALS INC COM 766559603 6483 3542551 SH SOLE 0 3542551 0 0 SAGE THERAPEUTICS INC COM 78667J108 23917 575200 SH SOLE 0 575200 0 0 STAAR SURGICAL CO COM 852312305 173614 2821154 SH SOLE 0 2821154 0 0 SUNESIS PHARMACEUTICALS INC COM 867328700 306 1162473 SH SOLE 0 1162473 0 0 SYNDAX PHARMACEUTICALS INC COM 87164F105 1893 127700 SH SOLE 0 127700 0 0 UNITED THERAPEUTICS CORP COM 91307C102 92735 766406 SH SOLE 0 766406 0 0 UROGEN PHARMA LTD COM M96088105 640 24500 SH SOLE 0 24500 0 0 VANDA PHARMACEUTICALS INC COM 921659108 47093 4116548 SH SOLE 0 4116548 0 0 ZOGENIX INC COM 98978L204 2812 104100 SH SOLE 0 104100 0 0