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13F-HR filed by EcoR1 Capital, LLC

EcoR1 Capital, LLC filed this 13F-HR for the quarter ended 2023-12-31, filed 2024-02-14, with 51 holding rows worth $3,851,537,802.

Accession
0000935836-24-000163
Filed
2024-02-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2023

A holdings report, 51 entries on the cover page, a total value of $3,851,537,802 stated on the cover page (in dollars after the unit check, H1), rows summing to $3,851,537,802 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 INC03753U106COM11,173,068$668,819,850dollars as filed
MIRATI THERAPEUTICS INC60468T105COM7,396,979$434,572,516dollars as filed
PROTHENA CORP PLC SHSG72800108Stock11,584,280$420,972,735dollars as filed
ARVINAS INC04335A105COM6,726,491$276,862,370dollars as filed
LAKEFRONT BIOTHERAPEUTICS NV36315X101SPON ADR5,756,268$233,992,294dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM5,991,479$187,593,207dollars as filed
ANAPTYSBIO INC032724106COM7,521,024$161,100,334dollars as filed
ZYMEWORKS INC98985Y108COM13,437,473$139,615,344dollars as filed
TANGO THERAPEUTICS INC87583X109COM13,330,736$131,974,286dollars as filed
JAZZ PHARMACEUTICALS PLC SHS USDG50871105Stock1,013,952$124,716,096dollars as filed
ARGENX SE SPONSORED ADR04016X101ADR300,997$114,508,289dollars as filed
XENCOR INC98401F105COMMON STOCK5,282,516$112,147,815dollars as filed
KURA ONCOLOGY INC COM50127T109Stock5,806,871$83,502,805dollars as filed
SAREPTA THERAPEUTICS INC803607100COM832,907$80,317,222dollars as filed
CRINETICS PHARMACEUTICALS INC COM22663K107Stock2,012,517$71,605,355dollars as filed
Mersana Therapeutics Inc59045L106Common Stock19,364,688$44,926,076dollars as filed
CENTESSA PHARMACEUTICALS PLC152309100SPONSORED ADS5,618,779$44,725,481dollars as filed
IMMUNOME INC45257U108COM3,879,415$41,509,741dollars as filed
EDGEWISE THERAPEUTICS INC28036F105COM3,493,194$38,215,542dollars as filed
NEUMORA THERAPEUTICS INC.640979100COM2,071,450$35,318,223dollars as filed
THIRD HARMONIC BIO INC88427A107COM3,182,444$34,911,411dollars as filed
VOYAGER THERAPEUTICS INC92915B106COMMON STOCK3,851,507$32,506,719dollars as filed
ALECTOR INC014442107COMMON STOCK4,056,548$32,371,253dollars as filed
ORIC PHARMACEUTICALS INC68622P109COM3,418,068$31,446,226dollars as filed
Tscan Therapeutics Inc89854M101COM5,000,000$29,150,000dollars as filed
NUVATION BIO INC COM CL A67080N101Stock19,209,643$29,006,561dollars as filed
PHARVARIS NVN69605108COMMON STOCK900,000$25,245,000dollars as filed
NEUROGENE INC64135M105COMMON STOCK1,271,342$24,638,608dollars as filed
GRAPHITE BIO INC38870X104COM8,538,446$22,370,729dollars as filed
ATEA PHARMACEUTICALS INC04683R106COMMON STOCK6,995,861$21,337,376dollars as filed
OVID THERAPEUTICS INC690469101COMMON STOCK6,117,400$19,698,028dollars as filed
SPYRE THERAPEUTICS INC00773J202COM NEW887,076$19,089,876dollars as filed
VERVE THERAPEUTICS INC92539P101COM1,250,000$17,425,000dollars as filed
ITEOS THERAPEUTICS INC46565G104COM1,115,022$12,209,491dollars as filed
GOSSAMER BIO INC COM38341P102Stock9,195,404$8,390,806dollars as filed
MORPHIC HLDG INC61775R105COM211,262$6,101,247dollars as filed
PROQR THERAPEUTICS NVN71542109SHS EURO2,980,016$5,900,432dollars as filed
ATARA BIOTHERAPEUTICS INC COM NEW046513107Stock10,067,043$5,162,380dollars as filed
ALIGOS THERAPEUTICS INC COM NEW01626L105Stock6,389,468$4,242,607dollars as filed
REVOLUTION MEDICINES INC COM76155X100Stock132,579$3,802,366dollars as filed
HOOKIPA PHARMA INC43906K100COM4,595,024$3,721,969dollars as filed
GENERATION BIO CO37148K100COM2,046,867$3,377,331dollars as filed
NGM BIOPHARMACEUTICALS INC62921N105COM2,385,873$2,049,465dollars as filed
ALLAKOS INC01671P100COM748,900$2,044,497dollars as filed
TYRA BIOSCIENCES INC90240B106COMMON STOCK137,014$1,897,644dollars as filed
PHATHOM PHARMACEUTICALS INC71722W107COMMON STOCK198,480$1,812,122dollars as filed
PMV PHARMACEUTICALS INC69353Y103COM566,879$1,757,325dollars as filed
NUVATION BIO INC67080N119WARR963,333$1,454,633dollars as filed
NEWAMSTERDAM PHARMA CO NV-27N62509117WTS66,665$744,648dollars as filed
SURROZEN INC86889P117*W EXP 08/01/20366,665$626,651dollars as filed
CAREMAX INC14171W111*W EXP 06/08/202100,000$49,820dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0000935836-24-000163this filing2024-02-14acceptance time not in the bulk data set