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13F-HR filed by EcoR1 Capital, LLC

EcoR1 Capital, LLC filed this 13F-HR for the quarter ended 2023-09-30, filed 2023-11-14, with 51 holding rows worth $2,964,695,194.

Accession
0000935836-23-000696
Filed
2023-11-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q3 2023

A holdings report, 51 entries on the cover page, a total value of $2,964,695,194 stated on the cover page (in dollars after the unit check, H1), rows summing to $2,964,695,194 with VALUE read as dollars as filed, 13F file number 028-16764. 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
PROTHENA CORP PLC SHSG72800108Stock11,584,280$558,941,510dollars as filed
APELLIS PHARMACEUTICALS INC03753U106COM10,899,859$414,630,636dollars as filed
MIRATI THERAPEUTICS INC60468T105COM5,748,399$250,400,260dollars as filed
LAKEFRONT BIOTHERAPEUTICS NV36315X101SPON ADR5,756,268$198,879,059dollars as filed
REVOLUTION MEDICINES INC COM76155X100Stock5,577,863$154,395,248dollars as filed
ANAPTYSBIO INC032724106COM7,521,024$135,077,591dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM5,991,479$124,862,422dollars as filed
ARVINAS INC04335A105COM5,467,063$107,373,117dollars as filed
XENCOR INC98401F105COMMON STOCK5,282,516$106,442,697dollars as filed
TANGO THERAPEUTICS INC87583X109COM8,721,636$98,205,621dollars as filed
ZYMEWORKS INC98985Y108COM13,437,473$85,193,579dollars as filed
SPRINGWORKS THERAPEUTICS INC85205L107COM3,460,208$80,000,009dollars as filed
KURA ONCOLOGY INC COM50127T109Stock5,806,871$52,958,664dollars as filed
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock368,411$47,687,120dollars as filed
CRINETICS PHARMACEUTICALS INC COM22663K107Stock1,530,263$45,510,022dollars as filed
CENTESSA PHARMACEUTICALS PLC152309100SPONSORED ADS5,618,779$36,353,500dollars as filed
RELAY THERAPEUTICS INC COM75943R102Stock4,163,824$35,017,760dollars as filed
MORPHIC HLDG INC61775R105COM1,480,190$33,911,153dollars as filed
VOYAGER THERAPEUTICS INC92915B106COMMON STOCK3,851,507$29,849,179dollars as filed
NEUMORA THERAPEUTICS INC.640979100COM2,071,450$29,228,160dollars as filed
APELLIS PHARMACEUTICALS INC03753U106COM732,500$27,864,300dollars as filedcall
ALECTOR INC014442107COMMON STOCK4,056,548$26,286,431dollars as filed
NUVATION BIO INC COM CL A67080N101Stock19,209,643$25,740,922dollars as filed
Mersana Therapeutics Inc59045L106Common Stock19,364,688$24,593,154dollars as filed
OVID THERAPEUTICS INC690469101COMMON STOCK6,117,400$23,490,816dollars as filed
GRAPHITE BIO INC38870X104COM8,538,446$21,175,346dollars as filed
ATEA PHARMACEUTICALS INC04683R106COMMON STOCK6,995,861$20,987,583dollars as filed
ORIC PHARMACEUTICALS INC68622P109COM3,418,068$20,679,311dollars as filed
EDGEWISE THERAPEUTICS INC28036F105COM3,493,194$20,016,002dollars as filed
THIRD HARMONIC BIO INC88427A107COM2,982,444$19,057,817dollars as filed
ACELYRIN INC00445A100COM1,402,201$14,260,384dollars as filed
ALLOGENE THERAPEUTICS INC019770106COM4,488,200$14,227,594dollars as filed
Tscan Therapeutics Inc89854M101COM5,000,000$12,800,000dollars as filed
DECIPHERA PHARMACEUTICALS IN24344T101COM993,000$12,630,960dollars as filed
GENERATION BIO CO37148K100COM2,046,867$7,757,626dollars as filed
GOSSAMER BIO INC COM38341P102Stock9,195,404$7,657,932dollars as filed
PHATHOM PHARMACEUTICALS INC71722W107COMMON STOCK700,000$7,259,000dollars as filed
NGM BIOPHARMACEUTICALS INC62921N105COM6,435,518$6,886,004dollars as filed
PRIME MEDICINE INC74168J101COM600,000$5,724,000dollars as filed
PROQR THERAPEUTICS NVN71542109SHS EURO2,980,016$3,874,021dollars as filed
PRELUDE THERAPEUTICS INC74065P101CMN1,157,452$3,576,527dollars as filed
ALIGOS THERAPEUTICS INC COM NEW01626L105Stock3,948,360$2,949,425dollars as filed
HOOKIPA PHARMA INC43906K100COM4,595,024$2,830,535dollars as filed
SPYRE THERAPEUTICS INC00773J202COM NEW199,996$2,449,951dollars as filed
ALLAKOS INC01671P100COM748,900$1,700,003dollars as filed
NUVATION BIO INC67080N119WARR963,333$1,290,866dollars as filed
REVOLUTION MEDICINES INC COM76155X100Stock31,300$866,384dollars as filedcall
NEWAMSTERDAM PHARMA CO NV-27N62509117WTS66,665$616,651dollars as filed
Tempest Therapeutics, Inc.87978U108Common Stock931,000$283,676dollars as filed
CAREMAX INC14171W111*W EXP 06/08/202100,000$212,000dollars as filed
SURROZEN INC86889P117*W EXP 08/01/20366,665$32,666dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0000935836-23-000696this filing2023-11-14acceptance time not in the bulk data set