13F HOLDINGS REPORT
EcoR1 Capital, LLC
Quarter ended Q1 2023 · Filed February 14, 2023 · Accession 0000935836-23-000229
Total Value
$3.29B
Positions
66
Other Managers
0
Confidential Omitted
No
Holdings (66)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | PROTHENA CORP PLC | PRTA | 11,584,280 | $698.0M | 21.24% |
| 2 | SAREPTA THERAPEUTICS INC | SRPT | 2,999,453 | $388.7M | 11.83% |
| 3 | APELLIS PHARMACEUTICALS INC | APLS | 5,183,431 | $268.0M | 8.16% |
| 4 | ANAPTYSBIO INC | ANABV | 7,521,024 | $233.1M | 7.09% |
| 5 | GALAPAGOS NV | GLPGF | 3,730,730 | $165.6M | 5.04% |
| 6 | XENCOR INC | XNCR | 5,282,516 | $137.6M | 4.19% |
| 7 | ARVINAS INC | ARVN | 3,123,300 | $106.8M | 3.25% |
| 8 | REVOLUTION MEDICINES INC | RVMDW | 4,458,731 | $106.2M | 3.23% |
| 9 | MORPHIC HLDG INC | 61775R105 | 3,951,566 | $105.7M | 3.22% |
| 10 | ACADIA PHARMACEUTICALS INC | ACAD | 5,991,479 | $95.4M | 2.90% |
| 11 | SPRINGWORKS THERAPEUTICS INC | 85205L107 | 3,460,208 | $90.0M | 2.74% |
| 12 | KURA ONCOLOGY INC | KURA | 6,638,371 | $82.4M | 2.51% |
| 13 | ZAI LAB LTD | ZLAB | 2,157,686 | $66.2M | 2.02% |
| 14 | RELAY THERAPEUTICS INC | RLAY | 4,163,824 | $62.2M | 1.89% |
| 15 | ZYMEWORKS DEL INC | ZYME | 7,568,573 | $59.5M | 1.81% |
| 16 | ALECTOR INC | ALEC | 4,056,548 | $37.4M | 1.14% |
| 17 | NGM BIOPHARMACEUTICALS INC | 62921N105 | 6,435,518 | $32.3M | 0.98% |
| 18 | ADICET BIO INC | ACET | 3,560,700 | $31.8M | 0.97% |
| 19 | EDGEWISE THERAPEUTICS INC | EWTX | 3,493,194 | $31.2M | 0.95% |
| 20 | TANGO THERAPEUTICS INC | TNGX | 4,201,414 | $30.5M | 0.93% |
| 21 | ATEA PHARMACEUTICALS INC | AVIR | 6,184,861 | $29.7M | 0.91% |
| 22 | VOYAGER THERAPEUTICS INC | VYGR | 4,753,907 | $29.0M | 0.88% |
| 23 | ALLOGENE THERAPEUTICS INC | ALLO | 4,488,200 | $28.2M | 0.86% |
| 24 | DYNE THERAPEUTICS INC | DYN | 2,322,384 | $26.9M | 0.82% |
| 25 | NUVATION BIO INC | NUVB | 13,896,543 | $26.7M | 0.81% |
| 26 | CRINETICS PHARMACEUTICALS IN | CRNX | 1,330,263 | $24.3M | 0.74% |
| 27 | ORIC PHARMACEUTICALS INC | ORIC | 3,418,068 | $20.1M | 0.61% |
| 28 | KYMERA THERAPEUTICS INC | KYMR | 796,093 | $19.9M | 0.60% |
| 29 | GRAPHITE BIO INC | 38870X104 | 5,712,096 | $19.0M | 0.58% |
| 30 | JANUX THERAPEUTICS INC | JANX | 1,421,319 | $18.7M | 0.57% |
| 31 | CHINOOK THERAPEUTICS INC | 16961L106 | 690,000 | $18.1M | 0.55% |
| 32 | CENTESSA PHARMACEUTICALS PLC | CNTA | 5,232,279 | $16.2M | 0.49% |
| 33 | POSEIDA THERAPEUTICS INC | 73730P108 | 2,650,000 | $14.0M | 0.43% |
| 34 | VENTYX BIOSCIENCES INC | 92332V107 | 400,000 | $13.1M | 0.40% |
| 35 | OVID THERAPEUTICS INC | OVID | 6,117,400 | $11.4M | 0.35% |
| 36 | PRIME MEDICINE INC | PRME | 600,000 | $11.1M | 0.34% |
| 37 | CULLINAN ONCOLOGY INC | CGEM | 1,035,038 | $10.9M | 0.33% |
| 38 | 2SEVENTY BIO INC | 901384107 | 1,143,494 | $10.7M | 0.33% |
| 39 | GERON CORP | GERN | 4,028,507 | $9.7M | 0.30% |
| 40 | AVEO PHARMACEUTICALS INC | 053588307 | 650,489 | $9.7M | 0.30% |
| 41 | BIOATLA INC | BCAB | 1,124,439 | $9.3M | 0.28% |
| 42 | DESIGN THERAPEUTICS INC | DSGN | 884,903 | $9.1M | 0.28% |
| 43 | GRACELL BIOTECHNOLOGIES INC | 38406L103 | 3,343,202 | $7.7M | 0.23% |
| 44 | MACROGENICS INC | MGNX | 1,117,455 | $7.5M | 0.23% |
| 45 | IMMATICS N.V | IMTX | 743,000 | $6.5M | 0.20% |
| 46 | ARCUTIS BIOTHERAPEUTICS INC | ARQT | 415,322 | $6.1M | 0.19% |
| 47 | PRECISION BIOSCIENCES INC | DTIL | 5,035,971 | $6.0M | 0.18% |
| 48 | HEALTH SCIENCES ACQ CORP 2 | G4411D109 | 400,000 | $4.0M | 0.12% |
| 49 | SELECTA BIOSCIENCES INC | 816212104 | 3,500,000 | $4.0M | 0.12% |
| 50 | PRAXIS PRECISION MEDICINES I | PRAX | 1,585,324 | $3.8M | 0.11% |
| 51 | ALIGOS THERAPEUTICS INC | ALGS | 3,948,360 | $3.8M | 0.11% |
| 52 | ABEONA THERAPEUTICS INC | ABEO | 1,086,956 | $3.3M | 0.10% |
| 53 | SURFACE ONCOLOGY INC | 86877M209 | 3,924,713 | $3.2M | 0.10% |
| 54 | ERASCA INC | ERAS | 678,441 | $2.9M | 0.09% |
| 55 | HOOKIPA PHARMA INC | HOOK | 2,473,489 | $2.0M | 0.06% |
| 56 | EUCRATES BIOMEDICAL ACQU COR | G3141W106 | 200,000 | $2.0M | 0.06% |
| 57 | NUVATION BIO INC | NUVB | 963,333 | $1.8M | 0.06% |
| 58 | ARYA SCIENCES ACQU CORP IV | G31659108 | 150,000 | $1.5M | 0.05% |
| 59 | TEMPEST THERAPEUTICS INC | TPST | 1,031,268 | $1.2M | 0.04% |
| 60 | ITEOS THERAPEUTICS INC | 46565G104 | 40,480 | $790,574 | 0.02% |
| 61 | NEWAMSTERDAM PHARMA COMPANY | NAMSW | 66,665 | $726,649 | 0.02% |
| 62 | EUCRATES BIOMEDICAL ACQU COR | G3141W122 | 66,666 | $665,993 | 0.02% |
| 63 | KRONOS BIO INC | 50107A104 | 326,780 | $529,384 | 0.02% |
| 64 | BLACK DIAMOND THERAPEUTICS I | BDTX | 282,131 | $507,836 | 0.02% |
| 65 | CAREMAX INC | 14171W111 | 100,000 | $365,000 | 0.01% |
| 66 | SURROZEN INC | SRZNW | 66,665 | $38,792 | 0.00% |