0000935836-23-000696.txt : 20231114 0000935836-23-000696.hdr.sgml : 20231114 20231114121644 ACCESSION NUMBER: 0000935836-23-000696 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230930 FILED AS OF DATE: 20231114 DATE AS OF CHANGE: 20231114 EFFECTIVENESS DATE: 20231114 FILER: COMPANY DATA: COMPANY CONFORMED NAME: EcoR1 Capital, LLC CENTRAL INDEX KEY: 0001587114 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-16764 FILM NUMBER: 231403099 BUSINESS ADDRESS: STREET 1: 357 TEHAMA STREET #3 CITY: SAN FRANCISCO STATE: CA ZIP: 94103 BUSINESS PHONE: 415-448-6534 MAIL ADDRESS: STREET 1: 357 TEHAMA STREET #3 CITY: SAN FRANCISCO STATE: CA ZIP: 94103 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE false false false 0001587114 XXXXXXXX 09-30-2023 09-30-2023 false EcoR1 Capital, LLC

357 Tehama Street #3 San Francisco CA 94103

13F HOLDINGS REPORT 028-16764 000167121 801-100470 N Oleg Nodelman 415-448-6534 Oleg Nodelman San Francisco CA 11-14-2023 0 51 2964695194 INFORMATION TABLE 2 infotable.xml ACADIA PHARMACEUTICALS INC COM 004225108 124862422 5991479 SH SOLE 5991479 0 0 ACELYRIN INC COM 00445A100 14260384 1402201 SH SOLE 1402201 0 0 AEGLEA BIOTHERAPEUTICS INC COM NEW ADDED 00773J202 2449951 199996 SH SOLE 199996 0 0 ALECTOR INC COM 014442107 26286431 4056548 SH SOLE 4056548 0 0 ALIGOS THERAPEUTICS INC COM 01626L105 2949425 3948360 SH SOLE 3948360 0 0 ALLAKOS INC COM 01671P100 1700003 748900 SH SOLE 748900 0 0 ALLOGENE THERAPEUTICS INC COM 019770106 14227594 4488200 SH SOLE 4488200 0 0 ANAPTYSBIO INC COM 032724106 135077591 7521024 SH SOLE 7521024 0 0 APELLIS PHARMACEUTICALS INC COM 03753U106 414630636 10899859 SH SOLE 10899859 0 0 APELLIS PHARMACEUTICALS INC COM 03753U106 27864300 732500 SH Call SOLE 732500 0 0 ARVINAS INC COM 04335A105 107373117 5467063 SH SOLE 5467063 0 0 ATEA PHARMACEUTICALS INC COM 04683R106 20987583 6995861 SH SOLE 6995861 0 0 CAREMAX INC *W EXP 06/08/202 14171W111 212000 100000 SH SOLE 100000 0 0 CENTESSA PHARMACEUTICALS PLC SPONSORED ADS 152309100 36353500 5618779 SH SOLE 5618779 0 0 CRINETICS PHARMACEUTICALS IN COM 22663K107 45510022 1530263 SH SOLE 1530263 0 0 DECIPHERA PHARMACEUTICALS IN COM 24344T101 12630960 993000 SH SOLE 993000 0 0 EDGEWISE THERAPEUTICS INC COM 28036F105 20016002 3493194 SH SOLE 3493194 0 0 GALAPAGOS NV SPON ADR 36315X101 198879059 5756268 SH SOLE 5756268 0 0 GENERATION BIO CO COM 37148K100 7757626 2046867 SH SOLE 2046867 0 0 GOSSAMER BIO INC COM 38341P102 7657932 9195404 SH SOLE 9195404 0 0 GRAPHITE BIO INC COM 38870X104 21175346 8538446 SH SOLE 8538446 0 0 HOOKIPA PHARMA INC COM 43906K100 2830535 4595024 SH SOLE 4595024 0 0 JAZZ PHARMACEUTICALS PLC SHS USD G50871105 47687120 368411 SH SOLE 368411 0 0 KURA ONCOLOGY INC COM 50127T109 52958664 5806871 SH SOLE 5806871 0 0 MERSANA THERAPEUTICS INC COM 59045L106 24593154 19364688 SH SOLE 19364688 0 0 MIRATI THERAPEUTICS INC COM 60468T105 250400260 5748399 SH SOLE 5748399 0 0 MORPHIC HLDG INC COM 61775R105 33911153 1480190 SH SOLE 1480190 0 0 NEUMORA THERAPEUTICS INC. COM ADDED 640979100 29228160 2071450 SH SOLE 2071450 0 0 NEWAMSTERDAM PHARMA COMPANY *W EXP 11/22/202 N62509117 616651 66665 SH SOLE 66665 0 0 NGM BIOPHARMACEUTICALS INC COM 62921N105 6886004 6435518 SH SOLE 6435518 0 0 NUVATION BIO INC *W EXP 07/07/202 67080N119 1290866 963333 SH SOLE 963333 0 0 NUVATION BIO INC COM CL A 67080N101 25740922 19209643 SH SOLE 19209643 0 0 ORIC PHARMACEUTICALS INC COM 68622P109 20679311 3418068 SH SOLE 3418068 0 0 OVID THERAPEUTICS INC COM 690469101 23490816 6117400 SH SOLE 6117400 0 0 PHATHOM PHARMACEUTICALS INC COM 71722W107 7259000 700000 SH SOLE 700000 0 0 PRELUDE THERAPEUTICS INC COM 74065P101 3576527 1157452 SH SOLE 1157452 0 0 PRIME MEDICINE INC COM 74168J101 5724000 600000 SH SOLE 600000 0 0 PROQR THRAPEUTICS N V SHS EURO N71542109 3874021 2980016 SH SOLE 2980016 0 0 PROTHENA CORP PLC SHS G72800108 558941510 11584280 SH SOLE 11584280 0 0 RELAY THERAPEUTICS INC COM 75943R102 35017760 4163824 SH SOLE 4163824 0 0 REVOLUTION MEDICINES INC COM 76155X100 154395248 5577863 SH SOLE 5577863 0 0 REVOLUTION MEDICINES INC COM 76155X100 866384 31300 SH Call SOLE 31300 0 0 SPRINGWORKS THERAPEUTICS INC COM 85205L107 80000009 3460208 SH SOLE 3460208 0 0 SURROZEN INC *W EXP 08/01/203 86889P117 32666 66665 SH SOLE 66665 0 0 TANGO THERAPEUTICS INC COM 87583X109 98205621 8721636 SH SOLE 8721636 0 0 TEMPEST THERAPEUTICS INC COM 87978U108 283676 931000 SH SOLE 931000 0 0 THIRD HARMONIC BIO INC COM 88427A107 19057817 2982444 SH SOLE 2982444 0 0 TSCAN THERAPEUTICS INC COM 89854M101 12800000 5000000 SH SOLE 5000000 0 0 VOYAGER THERAPEUTICS INC COM 92915B106 29849179 3851507 SH SOLE 3851507 0 0 XENCOR INC COM 98401F105 106442697 5282516 SH SOLE 5282516 0 0 ZYMEWORKS INC COM 98985Y108 85193579 13437473 SH SOLE 13437473 0 0