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EcoR1 Capital, LLC

Q4 2018 Holdings

Filed 2019-02-14 | 54 holdings | $156.9M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Argenx SE(ARGX)SPONSORED ADR04016X101$79.3M825,08750.5%
Ascendis Pharma A S(ASND)SPONSORED ADR04351P101$42.6M679,74627.1%
Arcus Biosciences Inc(RCUS)COM03969F109$13.2M1,223,4958.4%
Arbutus Biopharma Corp(ABUS)COM03879J100$12.6M3,281,5028.0%
Aclaris Therapeutics Inc(ACRS)COM00461U105$4.5M613,7282.9%
Corcept Therapeutics Inc(CORT)COM218352102$2.2M166,0051.4%
Corvus Pharmaceuticals Inc(CRVS)COM221015100$1.1M295,4200.7%
Arvinas Inc(ARVN)COM04335A105$643.0K50,0000.4%
Kura Oncology Inc(KURA)COM50127T109$74.1K5,276,7530.0%
Fibrogen Inc(FGENEUR)COM31572Q808$70.6K1,524,5570.0%
Ironwood Pharmaceuticals Inc(IRWD)COM46333X108$55.8K5,381,2820.0%
Assembly Biosciences IncCOM045396108$54.4K2,404,8530.0%
Spark Therapeutics IncCOM84652J103$44.5K1,136,8510.0%
Ionis Pharmaceuticals Inc(IONS)COM462222100$39.2K725,3260.0%
Fibrogen IncCallCOM31572Q908$38.9K840,8000.0%
Xencor Inc(XNCR)COM98401F105$35.8K989,0180.0%
Dicerna Pharmaceuticals Inc(DRNAUSD)COM253031108$35.5K3,316,4070.0%
Scholar Rock Holding Corp(SRRK)COM80706P103$33.9K1,474,2280.0%
Mirati Therapeutics Inc(MRTXEUR)COM60468T105$27.5K647,1690.0%
Kezar Life Sciences IncCOM49372L100$25.0K1,060,0180.0%
Solid Biosciences IncCOM83422E105$23.2K867,2460.0%
Ascendis Pharma A SPutCOM04351P951$22.6K360,0000.0%
Akcea Therapeutics Inc(AKCAEUR)COM00972L107$19.3K639,7430.0%
Gilead Sciences IncCallCOM375558903$17.8K285,1000.0%
Eiger Biopharmaceuticals Inc(CLDNEUR)COM28249U105$16.2K1,595,6430.0%
Unity Biotechnology IncCOM91381U101$15.7K967,1140.0%
Ascendis Pharma A SCallCOM04351P901$15.7K250,4000.0%
Sangamo Therapeutics Inc(SGMO)COM800677106$13.6K1,185,8310.0%
ZAI LAB LTD(ZLAB)SPONSORED ADR98887Q104$13.2K569,3770.0%
Celgene CorpCallCOM151020904$12.5K195,0000.0%
Ironwood Pharmaceuticals IncCallCOM46333X908$12.1K1,172,3000.0%
Myokardia IncCOM62857M105$11.5K234,3810.0%
Rhythm Pharmaceuticals Inc(RYTM)COM76243J105$10.8K400,8380.0%
Nektar TherapeuticsCallCOM640268908$10.4K316,7000.0%
Wave Life Sciences LTD(WVE)COMY95308105$9.8K233,9330.0%
Surface Oncology IncCOM86877M209$9.6K2,261,3280.0%
Rubius Therapeutics IncCOM78116T103$9.5K592,1280.0%
Array Biopharma Inc(ARRYEUR)COM04269X105$9.2K644,0020.0%
Prothena Corp PLC(PRTA)COMG72800108$8.6K838,2190.0%
Magenta Therapeutics IncCOM55910K108$7.9K1,379,4870.0%
Immune Design CorpCOM45252L103$7.3K5,603,1910.0%
Rocket Pharmaceuticals Inc(RCKT)COM77313F106$6.7K450,0000.0%
Crispr Therapeutics AG(CRSP)COMH17182108$6.0K208,8500.0%
Aquinox Pharmaceuticals IncCOM03842B101$4.9K2,265,8800.0%
Portola Pharmaceuticals IncCOM737010108$4.8K247,8580.0%
Five Prime Therapeutics Inc(FPRX)COM33830X104$3.0K326,7750.0%
Curis Inc(CRISEUR)COM231269200$2.1K2,982,2080.0%
Dynavax Technologies Corp(DVAX)COM268158201$1.3K140,1180.0%
Chiasma Inc(CHMA)COM16706W102$1.2K379,7530.0%
Onconova Therapeutics IncCOM68232V405$893423,4410.0%
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