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13F-HR filed by EcoR1 Capital, LLC

EcoR1 Capital, LLC filed this 13F-HR for the quarter ended 2024-12-31, filed 2025-02-14, with 59 holding rows worth $2,645,070,547.

Accession
0000935836-25-000164
Filed
2025-02-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2024

A holdings report, 59 entries on the cover page, a total value of $2,645,070,547 stated on the cover page (in dollars after the unit check, H1), rows summing to $2,645,070,547 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
APELLIS PHARMACEUTICALS INC03753U106COM11,890,843$379,436,800dollars as filed
ZYMEWORKS INC98985Y108COM15,028,079$220,011,077dollars as filed
CRINETICS PHARMACEUTICALS INC COM22663K107Stock4,288,120$219,251,576dollars as filed
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock1,706,469$210,151,657dollars as filed
PROTHENA CORP PLC SHSG72800108Stock11,584,280$160,442,278dollars as filed
XENCOR INC98401F105COMMON STOCK6,144,767$141,206,746dollars as filed
Pfizer Inc.717081103COM5,000,000$132,650,000dollars as filedcall
ARVINAS INC04335A105COM6,726,491$128,946,832dollars as filed
ANAPTYSBIO INC032724106COM7,873,448$104,244,452dollars as filed
SAREPTA THERAPEUTICS INC803607100COM770,000$93,624,300dollars as filed
JANUX THERAPEUTICS INC47103J105COM1,469,818$78,694,056dollars as filed
UNIQURE NVN90064101SHS3,400,000$60,044,000dollars as filed
SPRINGWORKS THERAPEUTICS INC85205L107COM1,560,000$56,362,800dollars as filed
CRISPR THERAPEUTICS AG NAMEN AKTH17182108Stock1,389,276$54,681,903dollars as filed
IMMUNOME INC45257U108COM3,879,415$41,199,387dollars as filed
TECTONIC THERAPEUTIC INC878972108COMMON STOCK849,143$39,204,932dollars as filed
TANGO THERAPEUTICS INC87583X109COM10,630,736$32,848,974dollars as filed
THIRD HARMONIC BIO INC88427A107COM3,182,444$32,747,349dollars as filed
KURA ONCOLOGY INC COM50127T109Stock3,557,269$30,983,813dollars as filed
NEUROGENE INC64135M105COMMON STOCK1,271,342$29,062,878dollars as filed
ORIC PHARMACEUTICALS INC68622P109COM3,418,068$27,583,809dollars as filed
ETON PHARMACEUTICALS INC29772L108COMMON STOCK1,829,603$24,370,312dollars as filed
MBX BIOSCIENCES INC COM55287L101Stock1,259,273$23,208,401dollars as filed
MADRIGAL PHARMACEUTICALS INC COM558868105Stock75,000$23,142,750dollars as filed
VOYAGER THERAPEUTICS INC92915B106COMMON STOCK3,917,546$22,212,486dollars as filed
NEUMORA THERAPEUTICS INC.640979100COM2,071,450$21,957,370dollars as filed
CARGO THERAPEUTICS INC COM14179K101Stock1,470,000$21,197,400dollars as filed
MOONLAKE IMMUNOTHERAPEUTICS CLASS A ORD61559X104Stock332,522$18,006,066dollars as filed
GINKGO BIOWORKS HOLDINGS INC37611X209COMMON STOCK1,743,344$17,119,638dollars as filed
AVIDITY BIOSCIENCES INC COM05370A108Stock557,576$16,214,310dollars as filed
Mersana Therapeutics Inc59045L106Common Stock11,328,000$16,199,040dollars as filed
Tscan Therapeutics Inc89854M101COM5,000,000$15,200,000dollars as filed
ADAPTIMMUNE THERAPEUTICS PLC00653A107SPONDS ADR27,404,070$14,762,573dollars as filed
KYMERA THERAPEUTICS INC501575104COM350,000$14,080,500dollars as filed
DYNE THERAPEUTICS INC COM26818M108Stock555,644$13,090,973dollars as filed
BICYCLE THERAPEUTICS PLC-ADR088786108SPONSORED ADS910,000$12,740,000dollars as filed
ATEA PHARMACEUTICALS INC04683R106COMMON STOCK3,341,653$11,194,538dollars as filed
Day One Biopharmaceuticals Inc23954D109Common Stock862,068$10,922,402dollars as filed
REPLIMUNE GROUP INC76029N106COMMON STOCK850,341$10,297,630dollars as filed
ALIGOS THERAPEUTICS INC01626L204COM NEW255,573$10,182,028dollars as filed
ATARA BIOTHERAPEUTICS INC046513206COM NEW532,134$7,082,704dollars as filed
VERVE THERAPEUTICS INC92539P101COM1,250,000$7,050,000dollars as filed
UNIQURE NVN90064101SHS385,000$6,799,100dollars as filedcall
FATE THERAPEUTICS INC31189P102COM3,049,405$5,031,518dollars as filed
LAKEFRONT BIOTHERAPEUTICS NV36315X101SPON ADR155,006$4,262,665dollars as filed
ALLOVIR INC019818103COM408,688$3,947,926dollars as filed
KEROS THERAPEUTICS INC COM492327101Stock187,500$2,968,125dollars as filed
RELAY THERAPEUTICS INC COM75943R102Stock641,426$2,642,675dollars as filed
DESIGN THERAPEUTICS INC25056L103COM426,683$2,632,634dollars as filed
NUVATION BIO INC67080N119WARR963,333$2,562,466dollars as filed
GENERATION BIO CO37148K100COM2,046,867$2,169,679dollars as filed
PRIME MEDICINE INC74168J101COM700,000$2,044,000dollars as filed
ETON PHARMACEUTICALS INC29772L108COMMON STOCK151,400$2,016,648dollars as filedcall
WHITEHAWK THERAPEUTICS INC00032Q104CMN345,253$1,089,273dollars as filed
UPSTREAM BIO INC91678A107COMMON STOCK60,000$986,400dollars as filed
SURROZEN INC86889P117*W EXP 08/01/20366,665$956,643dollars as filed
HOOKIPA PHARMA INC43906K209COM NEW388,861$781,611dollars as filed
ARTIVA BIOTHERAPEUTICS INC04317A107COM41,453$417,846dollars as filed
MONTE ROSA THERAPEUTICS INC61225M102COM21,700$150,598dollars as filedcall

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0000935836-25-000164this filing2025-02-14acceptance time not in the bulk data set