0000935836-23-000412.txt : 20230515 0000935836-23-000412.hdr.sgml : 20230515 20230515121951 ACCESSION NUMBER: 0000935836-23-000412 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230331 FILED AS OF DATE: 20230515 DATE AS OF CHANGE: 20230515 EFFECTIVENESS DATE: 20230515 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: 23920128 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 03-31-2023 03-31-2023 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 05-15-2023 0 58 3105401652 INFORMATION TABLE 2 infotable.xml ACADIA PHARMACEUTICALS INC COM 004225108 112759635 5991479 SH SOLE 5991479 0 0 ADICET BIO INC COM 007002108 20509632 3560700 SH SOLE 3560700 0 0 ALECTOR INC COM 014442107 25110032 4056548 SH SOLE 4056548 0 0 ALIGOS THERAPEUTICS INC COM 01626L105 3450867 3948360 SH SOLE 3948360 0 0 ALLOGENE THERAPEUTICS INC COM 019770106 22171708 4488200 SH SOLE 4488200 0 0 ANAPTYSBIO INC COM 032724106 163657482 7521024 SH SOLE 7521024 0 0 APELLIS PHARMACEUTICALS INC COM 03753U106 359590636 5451647 SH SOLE 5451647 0 0 ARCUTIS BIOTHERAPEUTICS INC COM 03969K108 4568542 415322 SH SOLE 415322 0 0 ARVINAS INC COM 04335A105 101569968 3717788 SH SOLE 3717788 0 0 ATEA PHARMACEUTICALS INC COM 04683R106 20719284 6184861 SH SOLE 6184861 0 0 BEAM THERAPEUTICS INC COM 07373V105 6080856 198591 SH SOLE 198591 0 0 BLACK DIAMOND THERAPEUTICS I COM 09203E105 2251168 1191094 SH SOLE 1191094 0 0 CAREMAX INC *W EXP 06/08/202 14171W111 267000 100000 SH SOLE 100000 0 0 CENTESSA PHARMACEUTICALS PLC SPONSORED ADS 152309100 21632299 5618779 SH SOLE 5618779 0 0 CHINOOK THERAPEUTICS INC COM 16961L106 10314483 445550 SH SOLE 445550 0 0 CRINETICS PHARMACEUTICALS IN COM 22663K107 21364024 1330263 SH SOLE 1330263 0 0 CULLINAN ONCOLOGY INC COM 230031106 2520774 246410 SH SOLE 246410 0 0 CYTEIR THERAPEUTICS INC COM 23284P103 79758 43823 SH SOLE 43823 0 0 DYNE THERAPEUTICS INC COM 26818M108 26753864 2322384 SH SOLE 2322384 0 0 EDGEWISE THERAPEUTICS INC COM 28036F105 23299604 3493194 SH SOLE 3493194 0 0 ERASCA INC COM 29479A108 2042107 678441 SH SOLE 678441 0 0 EUCRATES BIOMEDICAL ACQU COR *W EXP 10/23/202 G3141W122 675993 66666 SH SOLE 66666 0 0 EUCRATES BIOMEDICAL ACQU COR SHS G3141W106 2028000 200000 SH SOLE 200000 0 0 GALAPAGOS NV SPON ADR 36315X101 164013083 4244645 SH SOLE 4244645 0 0 GENERATION BIO CO COM 37148K100 8413290 1956579 SH SOLE 1956579 0 0 GRACELL BIOTECHNOLOGIES INC SPONSORED ADS 38406L103 1486043 798948 SH SOLE 798948 0 0 GRAPHITE BIO INC COM 38870X104 20919193 8538446 SH SOLE 8538446 0 0 HOOKIPA PHARMA INC COM 43906K100 1820488 2473489 SH SOLE 2473489 0 0 ITEOS THERAPEUTICS INC COM 46565G104 17693 1300 SH SOLE 1300 0 0 JANUX THERAPEUTICS INC COM 47103J105 46445681 3838486 SH SOLE 3838486 0 0 KRONOS BIO INC COM 50107A104 477099 326780 SH SOLE 326780 0 0 KURA ONCOLOGY INC COM 50127T109 81187277 6638371 SH SOLE 6638371 0 0 KYMERA THERAPEUTICS INC COM 501575104 23588236 796093 SH SOLE 796093 0 0 MACROGENICS INC COM 556099109 4439607 619192 SH SOLE 619192 0 0 MORPHIC HLDG INC COM 61775R105 144799800 3846966 SH SOLE 3846966 0 0 NEWAMSTERDAM PHARMA COMPANY *W EXP 11/22/202 N62509117 883978 66665 SH SOLE 66665 0 0 NGM BIOPHARMACEUTICALS INC COM 62921N105 26256913 6435518 SH SOLE 6435518 0 0 NUVATION BIO INC *W EXP 07/07/202 67080N119 1599133 963333 SH SOLE 963333 0 0 NUVATION BIO INC COM CL A 67080N101 23068261 13896543 SH SOLE 13896543 0 0 ORIC PHARMACEUTICALS INC COM 68622P109 19482988 3418068 SH SOLE 3418068 0 0 OVID THERAPEUTICS INC COM 690469101 15782892 6117400 SH SOLE 6117400 0 0 POSEIDA THERAPEUTICS INC COM 73730P108 8162000 2650000 SH SOLE 2650000 0 0 PRIME MEDICINE INC COM 74168J101 7380000 600000 SH SOLE 600000 0 0 PROQR THRAPEUTICS N V SHS EURO N71542109 6182783 2902715 SH SOLE 2902715 0 0 PROTHENA CORP PLC SHS G72800108 561490052 11584280 SH SOLE 11584280 0 0 RELAY THERAPEUTICS INC COM 75943R102 68578181 4163824 SH SOLE 4163824 0 0 REVOLUTION MEDICINES INC COM 76155X100 115928284 5352183 SH SOLE 5352183 0 0 SAREPTA THERAPEUTICS INC COM 803607100 413414607 2999453 SH SOLE 2999453 0 0 SELECTA BIOSCIENCES INC COM 816212104 278000 200000 SH SOLE 200000 0 0 SPRINGWORKS THERAPEUTICS INC COM 85205L107 89065754 3460208 SH SOLE 3460208 0 0 SURFACE ONCOLOGY INC COM 86877M209 2154372 3082959 SH SOLE 3082959 0 0 SURROZEN INC *W EXP 08/01/203 86889P117 40132 66665 SH SOLE 66665 0 0 TANGO THERAPEUTICS INC COM 87583X109 16595585 4201414 SH SOLE 4201414 0 0 TEMPEST THERAPEUTICS INC COM 87978U108 2392542 1031268 SH SOLE 1031268 0 0 THIRD HARMONIC BIO INC COM 88427A107 7424743 1802122 SH SOLE 1802122 0 0 VOYAGER THERAPEUTICS INC COM 92915B106 29695119 3851507 SH SOLE 3851507 0 0 XENCOR INC COM 98401F105 147329371 5282516 SH SOLE 5282516 0 0 ZYMEWORKS INC COM 98985Y108 91190756 10087473 SH SOLE 10087473 0 0