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13F-HR filed by EcoR1 Capital, LLC

EcoR1 Capital, LLC filed this 13F-HR for the quarter ended 2018-12-31, filed 2019-02-14, with 53 holding rows worth $999,389,000.

Accession
0001567619-19-004400
Filed
2019-02-14
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2018

A holdings report, 54 entries on the cover page, a total value of $999,389,000 stated on the cover page (in dollars after the unit check, H1), rows summing to $999,389,000 with VALUE read as thousands by filing date, 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
ARGENX SE SPONSORED ADR04016X101ADR825,087$79,266,000thousands by filing date
KURA ONCOLOGY INC COM50127T109Stock5,276,753$74,086,000thousands by filing date
FIBROGEN INC31572Q808COM1,524,557$70,556,000thousands by filing date
IRONWOOD PHARMACEUTICALS INC46333X108COMMON STOCK5,381,282$55,750,000thousands by filing date
ASSEMBLY BIOSCIENCES INC045396108COM2,404,853$54,398,000thousands by filing date
SPARK THERAPEUTICS INC84652J103COM1,136,851$44,496,000thousands by filing date
ASCENDIS PHARMA A/S DKK 1.0 AD04351P101SPONSORED ADR679,746$42,586,000thousands by filing date
IONIS PHARMACEUTICALS INC COM462222100Stock725,326$39,211,000thousands by filing date
FIBROGEN INC31572Q908CALL840,800$38,912,000thousands by filing datecall
XENCOR INC98401F105COMMON STOCK989,018$35,763,000thousands by filing date
DICERNA PHARMACEUTICALS INC253031108COM3,316,407$35,452,000thousands by filing date
SCHOLAR ROCK HLDG CORP80706P103COM1,474,228$33,863,000thousands by filing date
MIRATI THERAPEUTICS INC60468T105COM647,169$27,453,000thousands by filing date
KEZAR LIFE SCIENCES INC49372L100COM1,060,018$25,016,000thousands by filing date
SOLID BIOSCIENCES INC COM NEW83422E105Stock867,246$23,242,000thousands by filing date
ASCENDIS PHARMA A/S04351P951PUT360,000$22,554,000thousands by filing dateput
AKCEA THERAPEUTICS INC00972L107COM639,743$19,282,000thousands by filing date
GILEAD SCIENCES INC375558903COM285,100$17,833,000thousands by filing datecall
EIGER BIOPHARMACEUTICALS INC28249U105COM1,595,643$16,212,000thousands by filing date
UNITY BIOTECHNOLOGY INC91381U101COM967,114$15,725,000thousands by filing date
ASCENDIS PHARMA A/S04351P901CALL250,400$15,688,000thousands by filing datecall
SANGAMO THERAPEUTICS INC800677106COM1,185,831$13,613,000thousands by filing date
ZAI LAB LTD ADR98887Q104ADR569,377$13,221,000thousands by filing date
ARCUS BIOSCIENCES INC03969F109COM1,223,495$13,177,000thousands by filing date
Arbutus Biopharma Corp03879J100Common Shares, without par value3,281,502$12,568,000thousands by filing date
CELGENE CORP151020904COM195,000$12,498,000thousands by filing datecall
IRONWOOD PHARMACEUTICALS INC46333X908COM CL A1,172,300$12,145,000thousands by filing datecall
MYOKARDIA INC62857M105COM234,381$11,452,000thousands by filing date
RHYTHM PHARMACEUTICALS INC76243J105COM400,838$10,775,000thousands by filing date
NEKTAR THERAPEUTICS CMN STK640268908Cmn316,700$10,410,000thousands by filing datecall
WAVE LIFE SCIENCES LTD SHSY95308105Stock233,933$9,835,000thousands by filing date
SURFACE ONCOLOGY INC86877M209COM2,261,328$9,588,000thousands by filing date
RUBIUS THERAPEUTICS INC78116T103COM592,128$9,521,000thousands by filing date
ARRAY BIOPHARMA INC COM04269X105Stock644,002$9,177,000thousands by filing date
PROTHENA CORP PLC SHSG72800108Stock838,219$8,634,000thousands by filing date
DIANTHUS THERAPEUTICS INC COM55910K108Stock1,379,487$7,863,000thousands by filing date
IMMUNE DESIGN CORP.45252L103Common Stock5,603,191$7,284,000thousands by filing date
ROCKET PHARMACEUTICALS INC77313F106COM450,000$6,669,000thousands by filing date
CRISPR THERAPEUTICS AG NAMEN AKTH17182108Stock208,850$5,967,000thousands by filing date
AQUINOX PHARMACEUTICALS INC03842B101COM2,265,880$4,894,000thousands by filing date
PORTOLA PHARMACEUTICALS INC COM737010108Stock247,858$4,838,000thousands by filing date
ACLARIS THERAPEUTICS INC COM00461U105Stock613,728$4,535,000thousands by filing date
FIVE PRIME THERAPEUTICS INC.33830X104Common Stock326,775$3,039,000thousands by filing date
CORCEPT THERAPEUTICS INC218352102COM166,005$2,218,000thousands by filing date
CURIS INC231269200COM2,982,208$2,057,000thousands by filing date
DYNAVAX TECHNOLOGIES CORP268158201COM NEW140,118$1,282,000thousands by filing date
CHIASMA INC16706W102COM379,753$1,181,000thousands by filing date
CORVUS PHARMACEUTICALS INC221015100COM295,420$1,084,000thousands by filing date
ONCONOVA THERAPEUTIC68232V405Common Stock423,441$893,000thousands by filing date
ARVINAS INC04335A105COM50,000$643,000thousands by filing date
AFFIMED N VN01045108COM158,221$492,000thousands by filing date
CONSTELLATION PHARMACEUTICALS INC.210373106Common Stock79,194$318,000thousands by filing date
PROQR THERAPEUTICS NVN71542109SHS EURO11,022$174,000thousands by filing date

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001567619-19-004400this filing2019-02-14acceptance time not in the bulk data set