EcoR1 Capital, LLC Quant / Systematic

Location: San Francisco, CA

CIK: 0001587114 · Show all filings

Period: Q4 2023 (← Previous) (Next →)

Filing Date: Feb 14, 2024

Total Value: $3.852B (100.0% shares, 0.0% debt)

Holdings (51)

APLS APELLIS PHARMACEUTICALS INC 17.4%
Value $669M Shares 11,173,068 Est. Cost $42.80 Unrealized +18.5%
MIRATI THERAPEUTICS INC 11.3%
Value $435M Shares 7,396,979 Est. Cost $46.95 Unrealized
PRTA PROTHENA CORP PLC 10.9%
Value $421M Shares 11,584,280 Est. Cost $11.63 Unrealized +230.9%
ARVN ARVINAS INC 7.2%
Value $277M Shares 6,726,491 Est. Cost $41.18 Unrealized -43.2%
GLPG GALAPAGOS NV 6.1%
Value $234M Shares 5,756,268 Est. Cost $49.34 Unrealized
ACAD ACADIA PHARMACEUTICALS INC 4.9%
Value $188M Shares 5,991,479 Est. Cost $22.11 Unrealized +8.0%
ANAB ANAPTYSBIO INC 4.2%
Value $161M Shares 7,521,024 Est. Cost $23.15 Unrealized -25.5%
ZYME ZYMEWORKS INC 3.6%
Value $140M Shares 13,437,473 Est. Cost $7.82 Unrealized +1.8%
TNGX TANGO THERAPEUTICS INC 3.4%
Value $132M Shares 13,330,736 Est. Cost $7.06 Unrealized +23.0%
JAZZ JAZZ PHARMACEUTICALS PLC 3.2%
Value $125M Shares 1,013,952 Est. Cost $128.33 Unrealized -2.8%
ARGX ARGENX SE 3.0%
Value $115M Shares 300,997 Est. Cost $380.43 Unrealized
XNCR XENCOR INC 2.9%
Value $112M Shares 5,282,516 Est. Cost $33.50 Unrealized -43.2%
KURA KURA ONCOLOGY INC 2.2%
Value $83.5M Shares 5,806,871 Est. Cost $18.76 Unrealized -47.6%
SRPT SAREPTA THERAPEUTICS INC 2.1%
Value $80.32M Shares 832,907 Est. Cost $95.93 Unrealized 0.0%
CRNX CRINETICS PHARMACEUTICALS IN 1.9%
Value $71.61M Shares 2,012,517 Est. Cost $23.99 Unrealized +27.8%
MERSANA THERAPEUTICS INC 1.2%
Value $44.93M Shares 19,364,688 Est. Cost $1.27 Unrealized
CNTA CENTESSA PHARMACEUTICALS PLC 1.2%
Value $44.73M Shares 5,618,779 Est. Cost $4.55 Unrealized
IMNM IMMUNOME INC 1.1%
Value $41.51M Shares 3,879,415 Est. Cost $8.31 Unrealized 0.0%
EWTX EDGEWISE THERAPEUTICS INC 1.0%
Value $38.22M Shares 3,493,194 Est. Cost $18.91 Unrealized -62.9%
NMRA NEUMORA THERAPEUTICS INC. 0.9%
Value $35.32M Shares 2,071,450 Est. Cost $12.87 Unrealized -4.6%
THIRD HARMONIC BIO INC 0.9%
Value $34.91M Shares 3,182,444 Est. Cost $5.25 Unrealized
VYGR VOYAGER THERAPEUTICS INC 0.8%
Value $32.51M Shares 3,851,507 Est. Cost $3.51 Unrealized
ALEC ALECTOR INC 0.8%
Value $32.37M Shares 4,056,548 Est. Cost $19.56 Unrealized -69.7%
ORIC ORIC PHARMACEUTICALS INC 0.8%
Value $31.45M Shares 3,418,068 Est. Cost $30.24 Unrealized -76.1%
TCRX TSCAN THERAPEUTICS INC 0.8%
Value $29.15M Shares 5,000,000 Est. Cost $2.68 Unrealized +70.9%
NUVB NUVATION BIO INC 0.8%
Value $29.01M Shares 19,209,643 Est. Cost $8.54 Unrealized -84.9%
PHVS PHARVARIS N V 0.7%
Value $25.25M Shares 900,000 Est. Cost $20.23 Unrealized 0.0%
NGNE NEUROGENE INC 0.6%
Value $24.64M Shares 1,271,342 Est. Cost $14.32 Unrealized 0.0%
GRAPHITE BIO INC 0.6%
Value $22.37M Shares 8,538,446 Est. Cost $3.82 Unrealized
AVIR ATEA PHARMACEUTICALS INC 0.6%
Value $21.34M Shares 6,995,861 Est. Cost $13.03 Unrealized -76.8%
OVID OVID THERAPEUTICS INC 0.5%
Value $19.7M Shares 6,117,400 Est. Cost $3.32 Unrealized +2.9%
SYRE SPYRE THERAPEUTICS INC 0.5%
Value $19.09M Shares 887,076 Est. Cost $13.65 Unrealized +0.9%
VERVE THERAPEUTICS INC 0.5%
Value $17.43M Shares 1,250,000 Est. Cost $13.94 Unrealized
ITEOS THERAPEUTICS INC 0.3%
Value $12.21M Shares 1,115,022 Est. Cost $10.95 Unrealized
GOSS GOSSAMER BIO INC 0.2%
Value $8.391M Shares 9,195,404 Est. Cost $1.15 Unrealized -35.9%
MORPHIC HLDG INC 0.2%
Value $6.101M Shares 211,262 Est. Cost $29.75 Unrealized
PRQR PROQR THRAPEUTICS N V 0.2%
Value $5.9M Shares 2,980,016 Est. Cost $3.03 Unrealized -49.3%
ATARA BIOTHERAPEUTICS INC 0.1%
Value $5.162M Shares 10,067,043 Est. Cost $0.51 Unrealized
ALIGOS THERAPEUTICS INC 0.1%
Value $4.243M Shares 6,389,468 Est. Cost $1.72 Unrealized
RVMD REVOLUTION MEDICINES INC 0.1%
Value $3.802M Shares 132,579 Est. Cost $22.24 Unrealized +8.0%
HOOKIPA PHARMA INC 0.1%
Value $3.722M Shares 4,595,024 Est. Cost $1.63 Unrealized
GENERATION BIO CO 0.1%
Value $3.377M Shares 2,046,867 Est. Cost $4.35 Unrealized
NGM BIOPHARMACEUTICALS INC 0.1%
Value $2.049M Shares 2,385,873 Est. Cost $5.88 Unrealized
ALLAKOS INC 0.1%
Value $2.044M Shares 748,900 Est. Cost $4.36 Unrealized
TYRA TYRA BIOSCIENCES INC 0.0%
Value $1.898M Shares 137,014 Est. Cost $12.95 Unrealized 0.0%
PHAT PHATHOM PHARMACEUTICALS INC 0.0%
Value $1.812M Shares 198,480 Est. Cost $11.53 Unrealized -25.3%
PMVP PMV PHARMACEUTICALS INC 0.0%
Value $1.757M Shares 566,879 Est. Cost $2.65 Unrealized 0.0%
NUVATION BIO INC 0.0%
Value $1.455M Shares 963,333 Est. Cost $10.45 Unrealized
NAMSW NEWAMSTERDAM PHARMA COMPANY 0.0%
Value $745K Shares 66,665 Est. Cost $10.90 Unrealized
SRZNW SURROZEN INC 0.0%
Value $627K Shares 66,665 Est. Cost $7.07 Unrealized
CAREMAX INC 0.0%
Value $49,820 Shares 100,000 Est. Cost $12.90 Unrealized