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EcoR1 Capital, LLC

Q1 2015 Holdings

Filed 2015-05-15 | 24 holdings | $300.1K | 13F-HR/A | View on SEC ↗ · Holdings Table ↗

Amended (2015-05-18) | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Atara Biotherapeutics(ATRAGBX)ACOM046513107$44.2K1,063,18914.7%
Epizyme(EPZMEUR)COM29428V104$29.7K1,580,4009.9%
ReceptosCOM756207106$24.9K151,3018.3%
Array Biopharma SR Conv NT 3.000% Due 06/01/2020NOTE04269XAA3$22.0K$17,500,0007.3%
Assembly BiosciencesCOM045396108$20.8K1,574,1076.9%
Clovis OncologyPutCOM189464950$18.6K2,5006.2%
Clovis Oncology(CLVSEUR)COM189464100$18.0K243,0486.0%
Kite PharmaCOM49803L109$16.2K281,4005.4%
Flex PharmaCOM33938A105$15.8K805,6915.3%
Ironwood Pharmaceuticals CL A(IRWD)COM CL A46333X108$14.4K900,0004.8%
Fibrogen(FGENEUR)COM31572Q808$12.6K400,0004.2%
RetrophinCOM761299106$9.8K410,0003.3%
Kindred BiosciencesACOM494577109$9.2K1,294,4313.1%
Ironwood Pharmaceuticals CL A(IRWD)CallCOM CL A46333X108$8.0K5,0002.7%
GenvecCOM37246C307$5.9K1,986,4132.0%
Sage Therapeutics Inc(SG7)COM78667J108$5.6K112,4551.9%
Array Biopharma(ARRYEUR)CallCOM04269X105$5.4K7,3501.8%
Calithera Biosciences(CALAEUR)COM13089P101$4.9K295,4801.6%
Forward Pharma A/S Sponsored ADRSPONSORED ADR34986J105$4.5K158,9851.5%
Xenon Pharmaceuticals(XENE)COM98420N105$3.7K220,5701.2%
Flexion TherapeuticsCOM33938J106$3.7K162,9001.2%
TargaceptCOM87611R306$1.8K619,6990.6%
EpizymeCallCOM29428V904$2821500.1%