0000935836-24-000163.txt : 20240214 0000935836-24-000163.hdr.sgml : 20240214 20240214113021 ACCESSION NUMBER: 0000935836-24-000163 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20231231 FILED AS OF DATE: 20240214 DATE AS OF CHANGE: 20240214 EFFECTIVENESS DATE: 20240214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: EcoR1 Capital, LLC CENTRAL INDEX KEY: 0001587114 ORGANIZATION NAME: 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: 24634436 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 12-31-2023 12-31-2023 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 02-14-2024 0 51 3851537802 INFORMATION TABLE 2 infotable.xml ACADIA PHARMACEUTICALS INC COM 004225108 187593207 5991479 SH SOLE 5991479 0 0 ALECTOR INC COM 014442107 32371253 4056548 SH SOLE 4056548 0 0 ALIGOS THERAPEUTICS INC COM 01626L105 4242607 6389468 SH SOLE 6389468 0 0 ALLAKOS INC COM 01671P100 2044497 748900 SH SOLE 748900 0 0 ANAPTYSBIO INC COM 032724106 161100334 7521024 SH SOLE 7521024 0 0 APELLIS PHARMACEUTICALS INC COM 03753U106 668819850 11173068 SH SOLE 11173068 0 0 ARGENX SE SPONSORED ADR 04016X101 114508289 300997 SH SOLE 300997 0 0 ARVINAS INC COM 04335A105 276862370 6726491 SH SOLE 6726491 0 0 ATARA BIOTHERAPEUTICS INC COM 046513107 5162380 10067043 SH SOLE 10067043 0 0 ATEA PHARMACEUTICALS INC COM 04683R106 21337376 6995861 SH SOLE 6995861 0 0 CAREMAX INC *W EXP 06/08/202 14171W111 49820 100000 SH SOLE 100000 0 0 CENTESSA PHARMACEUTICALS PLC SPONSORED ADS 152309100 44725481 5618779 SH SOLE 5618779 0 0 CRINETICS PHARMACEUTICALS IN COM 22663K107 71605355 2012517 SH SOLE 2012517 0 0 EDGEWISE THERAPEUTICS INC COM 28036F105 38215542 3493194 SH SOLE 3493194 0 0 GALAPAGOS NV SPON ADR 36315X101 233992294 5756268 SH SOLE 5756268 0 0 GENERATION BIO CO COM 37148K100 3377331 2046867 SH SOLE 2046867 0 0 GOSSAMER BIO INC COM 38341P102 8390806 9195404 SH SOLE 9195404 0 0 GRAPHITE BIO INC COM 38870X104 22370729 8538446 SH SOLE 8538446 0 0 HOOKIPA PHARMA INC COM 43906K100 3721969 4595024 SH SOLE 4595024 0 0 IMMUNOME INC COM 45257U108 41509741 3879415 SH SOLE 3879415 0 0 ITEOS THERAPEUTICS INC COM 46565G104 12209491 1115022 SH SOLE 1115022 0 0 JAZZ PHARMACEUTICALS PLC SHS USD G50871105 124716096 1013952 SH SOLE 1013952 0 0 KURA ONCOLOGY INC COM 50127T109 83502805 5806871 SH SOLE 5806871 0 0 MERSANA THERAPEUTICS INC COM 59045L106 44926076 19364688 SH SOLE 19364688 0 0 MIRATI THERAPEUTICS INC COM 60468T105 434572516 7396979 SH SOLE 7396979 0 0 MORPHIC HLDG INC COM 61775R105 6101247 211262 SH SOLE 211262 0 0 NEUMORA THERAPEUTICS INC. COM 640979100 35318223 2071450 SH SOLE 2071450 0 0 NEUROGENE INC COM ADDED 64135M105 24638608 1271342 SH SOLE 1271342 0 0 NEWAMSTERDAM PHARMA COMPANY *W EXP 11/22/202 N62509117 744648 66665 SH SOLE 66665 0 0 NGM BIOPHARMACEUTICALS INC COM 62921N105 2049465 2385873 SH SOLE 2385873 0 0 NUVATION BIO INC *W EXP 07/07/202 67080N119 1454633 963333 SH SOLE 963333 0 0 NUVATION BIO INC COM CL A 67080N101 29006561 19209643 SH SOLE 19209643 0 0 ORIC PHARMACEUTICALS INC COM 68622P109 31446226 3418068 SH SOLE 3418068 0 0 OVID THERAPEUTICS INC COM 690469101 19698028 6117400 SH SOLE 6117400 0 0 PHARVARIS N V COM N69605108 25245000 900000 SH SOLE 900000 0 0 PHATHOM PHARMACEUTICALS INC COM 71722W107 1812122 198480 SH SOLE 198480 0 0 PMV PHARMACEUTICALS INC COM 69353Y103 1757325 566879 SH SOLE 566879 0 0 PROQR THRAPEUTICS N V SHS EURO N71542109 5900432 2980016 SH SOLE 2980016 0 0 PROTHENA CORP PLC SHS G72800108 420972735 11584280 SH SOLE 11584280 0 0 REVOLUTION MEDICINES INC COM 76155X100 3802366 132579 SH SOLE 132579 0 0 SAREPTA THERAPEUTICS INC COM 803607100 80317222 832907 SH SOLE 832907 0 0 SPYRE THERAPEUTICS INC COM NEW 00773J202 19089876 887076 SH SOLE 887076 0 0 SURROZEN INC *W EXP 08/01/203 86889P117 626651 66665 SH SOLE 66665 0 0 TANGO THERAPEUTICS INC COM 87583X109 131974286 13330736 SH SOLE 13330736 0 0 THIRD HARMONIC BIO INC COM 88427A107 34911411 3182444 SH SOLE 3182444 0 0 TSCAN THERAPEUTICS INC COM 89854M101 29150000 5000000 SH SOLE 5000000 0 0 TYRA BIOSCIENCES INC COM 90240B106 1897644 137014 SH SOLE 137014 0 0 VERVE THERAPEUTICS INC COM 92539P101 17425000 1250000 SH SOLE 1250000 0 0 VOYAGER THERAPEUTICS INC COM 92915B106 32506719 3851507 SH SOLE 3851507 0 0 XENCOR INC COM 98401F105 112147815 5282516 SH SOLE 5282516 0 0 ZYMEWORKS INC COM 98985Y108 139615344 13437473 SH SOLE 13437473 0 0