EcoR1 Capital, LLC Quant / Systematic

Location: San Francisco, CA

CIK: 0001587114 · Show all filings

Period: Q4 2022 (← Previous) (Next →)

Filing Date: Feb 14, 2023

Total Value: $3.286B (100.0% shares, 0.0% debt)

Holdings (66)

PRTA PROTHENA CORP PLC 21.2%
Value $698M Shares 11,584,280 Est. Cost $11.63 Unrealized +403.3%
SRPT SAREPTA THERAPEUTICS INC 11.8%
Value $389M Shares 2,999,453 Est. Cost $76.84 Unrealized +50.8%
APLS APELLIS PHARMACEUTICALS INC 8.2%
Value $268M Shares 5,183,431 Est. Cost $40.43 Unrealized +31.2%
ANAB ANAPTYSBIO INC 7.1%
Value $233M Shares 7,521,024 Est. Cost $23.15 Unrealized +22.0%
GLPG GALAPAGOS NV 5.0%
Value $166M Shares 3,730,730 Est. Cost $54.33 Unrealized
XNCR XENCOR INC 4.2%
Value $138M Shares 5,282,516 Est. Cost $33.50 Unrealized -16.5%
ARVN ARVINAS INC 3.3%
Value $107M Shares 3,123,300 Est. Cost $59.39 Unrealized -29.2%
RVMD REVOLUTION MEDICINES INC 3.2%
Value $106M Shares 4,458,731 Est. Cost $20.81 Unrealized +2.2%
MORPHIC HLDG INC 3.2%
Value $106M Shares 3,951,566 Est. Cost $29.75 Unrealized
ACAD ACADIA PHARMACEUTICALS INC 2.9%
Value $95.38M Shares 5,991,479 Est. Cost $22.11 Unrealized -29.3%
SPRINGWORKS THERAPEUTICS INC 2.7%
Value $90M Shares 3,460,208 Est. Cost $28.53 Unrealized
KURA KURA ONCOLOGY INC 2.5%
Value $82.38M Shares 6,638,371 Est. Cost $18.76 Unrealized -22.5%
ZLAB ZAI LAB LTD 2.0%
Value $66.24M Shares 2,157,686 Est. Cost $42.44 Unrealized
RLAY RELAY THERAPEUTICS INC 1.9%
Value $62.21M Shares 4,163,824 Est. Cost $28.03 Unrealized -31.7%
ZYME ZYMEWORKS DEL INC 1.8%
Value $59.49M Shares 7,568,573 Est. Cost $7.03 Unrealized 0.0%
ALEC ALECTOR INC 1.1%
Value $37.44M Shares 4,056,548 Est. Cost $19.56 Unrealized -55.4%
NGM BIOPHARMACEUTICALS INC 1.0%
Value $32.31M Shares 6,435,518 Est. Cost $5.88 Unrealized
ADICET BIO INC 1.0%
Value $31.83M Shares 3,560,700 Est. Cost $8.94 Unrealized
EWTX EDGEWISE THERAPEUTICS INC 1.0%
Value $31.23M Shares 3,493,194 Est. Cost $18.91 Unrealized -50.4%
TNGX TANGO THERAPEUTICS INC 0.9%
Value $30.46M Shares 4,201,414 Est. Cost $6.32 Unrealized +11.2%
AVIR ATEA PHARMACEUTICALS INC 0.9%
Value $29.75M Shares 6,184,861 Est. Cost $14.25 Unrealized -64.5%
VYGR VOYAGER THERAPEUTICS INC 0.9%
Value $29M Shares 4,753,907 Est. Cost $3.51 Unrealized
ALLO ALLOGENE THERAPEUTICS INC 0.9%
Value $28.23M Shares 4,488,200 Est. Cost $8.88 Unrealized +4.3%
DYN DYNE THERAPEUTICS INC 0.8%
Value $26.92M Shares 2,322,384 Est. Cost $11.57 Unrealized 0.0%
NUVB NUVATION BIO INC 0.8%
Value $26.68M Shares 13,896,543 Est. Cost $11.16 Unrealized -81.9%
CRNX CRINETICS PHARMACEUTICALS IN 0.7%
Value $24.34M Shares 1,330,263 Est. Cost $22.08 Unrealized -20.2%
ORIC ORIC PHARMACEUTICALS INC 0.6%
Value $20.13M Shares 3,418,068 Est. Cost $30.24 Unrealized -88.8%
KYMR KYMERA THERAPEUTICS INC 0.6%
Value $19.87M Shares 796,093 Est. Cost $26.36 Unrealized +1.2%
GRAPHITE BIO INC 0.6%
Value $18.96M Shares 5,712,096 Est. Cost $4.50 Unrealized
JANX JANUX THERAPEUTICS INC 0.6%
Value $18.72M Shares 1,421,319 Est. Cost $22.27 Unrealized -34.3%
CHINOOK THERAPEUTICS INC 0.6%
Value $18.08M Shares 690,000 Est. Cost $16.36 Unrealized
CNTA CENTESSA PHARMACEUTICALS PLC 0.5%
Value $16.22M Shares 5,232,279 Est. Cost $4.60 Unrealized
POSEIDA THERAPEUTICS INC 0.4%
Value $14.04M Shares 2,650,000 Est. Cost $3.53 Unrealized
VTYX VENTYX BIOSCIENCES INC 0.4%
Value $13.12M Shares 400,000 Est. Cost $18.95 Unrealized +56.3%
OVID OVID THERAPEUTICS INC 0.3%
Value $11.38M Shares 6,117,400 Est. Cost $3.32 Unrealized -48.7%
PRME PRIME MEDICINE INC 0.3%
Value $11.15M Shares 600,000 Est. Cost $18.06 Unrealized 0.0%
CGEM CULLINAN ONCOLOGY INC 0.3%
Value $10.92M Shares 1,035,038 Est. Cost $11.34 Unrealized +7.1%
2SEVENTY BIO INC 0.3%
Value $10.71M Shares 1,143,494 Est. Cost $21.76 Unrealized
GERN GERON CORP 0.3%
Value $9.749M Shares 4,028,507 Est. Cost $1.60 Unrealized +40.3%
AVEO PHARMACEUTICALS INC 0.3%
Value $9.725M Shares 650,489 Est. Cost $6.56 Unrealized
BCAB BIOATLA INC 0.3%
Value $9.277M Shares 1,124,439 Est. Cost $8.30 Unrealized 0.0%
DSGN DESIGN THERAPEUTICS INC 0.3%
Value $9.079M Shares 884,903 Est. Cost $22.94 Unrealized -40.9%
GRACELL BIOTECHNOLOGIES INC 0.2%
Value $7.689M Shares 3,343,202 Est. Cost $2.66 Unrealized
MGNX MACROGENICS INC 0.2%
Value $7.498M Shares 1,117,455 Est. Cost $4.10 Unrealized +33.7%
IMTX IMMATICS N.V 0.2%
Value $6.472M Shares 743,000 Est. Cost $10.34 Unrealized 0.0%
ARQT ARCUTIS BIOTHERAPEUTICS INC 0.2%
Value $6.147M Shares 415,322 Est. Cost $16.92 Unrealized +3.3%
PRECISION BIOSCIENCES INC 0.2%
Value $5.993M Shares 5,035,971 Est. Cost $1.60 Unrealized
HEALTH SCIENCES ACQ CORP 2 0.1%
Value $3.992M Shares 400,000 Est. Cost $11.00 Unrealized
SELECTA BIOSCIENCES INC 0.1%
Value $3.955M Shares 3,500,000 Est. Cost $1.31 Unrealized
PRAXIS PRECISION MEDICINES I 0.1%
Value $3.773M Shares 1,585,324 Est. Cost $2.30 Unrealized
ALIGOS THERAPEUTICS INC 0.1%
Value $3.762M Shares 3,948,360 Est. Cost $2.37 Unrealized
ABEO ABEONA THERAPEUTICS INC 0.1%
Value $3.348M Shares 1,086,956 Est. Cost $3.74 Unrealized 0.0%
SURFACE ONCOLOGY INC 0.1%
Value $3.218M Shares 3,924,713 Est. Cost $2.94 Unrealized
ERAS ERASCA INC 0.1%
Value $2.924M Shares 678,441 Est. Cost $20.63 Unrealized -67.1%
HOOKIPA PHARMA INC 0.1%
Value $2.004M Shares 2,473,489 Est. Cost $2.28 Unrealized
EUCRATES BIOMEDICAL ACQU COR 0.1%
Value $1.998M Shares 200,000 Est. Cost $9.98 Unrealized
NUVATION BIO INC 0.1%
Value $1.85M Shares 963,333 Est. Cost $10.45 Unrealized
ARYA SCIENCES ACQU CORP IV 0.0%
Value $1.515M Shares 150,000 Est. Cost $10.47 Unrealized
TEMPEST THERAPEUTICS INC 0.0%
Value $1.186M Shares 1,031,268 Est. Cost $2.15 Unrealized
ITEOS THERAPEUTICS INC 0.0%
Value $791K Shares 40,480 Est. Cost $21.93 Unrealized
NAMSW NEWAMSTERDAM PHARMA COMPANY 0.0%
Value $727K Shares 66,665 Est. Cost $10.90 Unrealized
EUCRATES BIOMEDICAL ACQU COR 0.0%
Value $666K Shares 66,666 Est. Cost $9.90 Unrealized
KRONOS BIO INC 0.0%
Value $529K Shares 326,780 Est. Cost $29.87 Unrealized
BDTX BLACK DIAMOND THERAPEUTICS I 0.0%
Value $508K Shares 282,131 Est. Cost $1.80 Unrealized 0.0%
CAREMAX INC 0.0%
Value $365K Shares 100,000 Est. Cost $12.90 Unrealized
SRZNW SURROZEN INC 0.0%
Value $38,792 Shares 66,665 Est. Cost $7.07 Unrealized