Q3 2024 · 13F-HR
EcoR1 Capital, LLCholdings as filed
Filed 2024-11-14 · accession 0000935836-24-000682
$2.92B
Reported value
64
Positions
2024-09-30
Period end
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 03753U106 | APLSUSD | APELLIS PHARMACEUTICALS INC | $342.9M | 11.7% | 11,890,843 | Common | SOLE |
| 032724106 | ANAB | ANAPTYSBIO INC | $261.1M | 8.94% | 7,794,996 | Common | SOLE |
| 22663K107 | CRNX | CRINETICS PHARMACEUTICALS IN | $219.1M | 7.50% | 4,288,120 | Common | SOLE |
| G72800108 | PRTA | PROTHENA CORP PLC | $193.8M | 6.63% | 11,584,280 | Common | SOLE |
| G50871105 | JAZZ | JAZZ PHARMACEUTICALS PLC | $190.1M | 6.51% | 1,706,469 | Common | SOLE |
| 98985Y108 | ZYME | ZYMEWORKS INC | $168.6M | 5.77% | 13,437,473 | Common | SOLE |
| 04335A105 | ARVN | ARVINAS INC | $165.7M | 5.67% | 6,726,491 | Common | SOLE |
| 50127T109 | KURA | KURA ONCOLOGY INC | $113.5M | 3.88% | 5,806,871 | Common | SOLE |
| 98401F105 | XNCR | XENCOR INC | $107.2M | 3.67% | 5,330,416 | Common | SOLE |
| 87583X109 | TNGX | TANGO THERAPEUTICS INC | $102.6M | 3.51% | 13,330,736 | Common | SOLE |
| 47103J105 | JANX | JANUX THERAPEUTICS INC | $66.8M | 2.29% | 1,469,818 | Common | SOLE |
| H17182108 | CRSP | CRISPR THERAPEUTICS AG | $65.3M | 2.23% | 1,389,276 | Common | SOLE |
| 45257U108 | IMNM | IMMUNOME INC | $56.7M | 1.94% | 3,879,415 | Common | SOLE |
| 64135M105 | NGNE | NEUROGENE INC | $53.3M | 1.83% | 1,271,342 | Common | SOLE |
| 152309100 | CNTA | CENTESSA PHARMACEUTICALS PLC | $51.5M | 1.76% | 3,223,851 | Common | SOLE |
| 92790C104 | VRDN | VIRIDIAN THERAPEUTICS INC | $44.6M | 1.53% | 1,958,847 | Common | SOLE |
| 67080N101 | NUVB | NUVATION BIO INC | $44.0M | 1.51% | 19,209,643 | Common | SOLE |
| 88427A107 | — | THIRD HARMONIC BIO INC | $43.1M | 1.48% | 3,182,444 | Common | SOLE |
| 92243G108 | PCVX | VAXCYTE INC | $40.3M | 1.38% | 352,464 | Common | SOLE |
| 59045L106 | — | MERSANA THERAPEUTICS INC | $36.6M | 1.25% | 19,364,688 | Common | SOLE |
| 68622P109 | ORIC | ORIC PHARMACEUTICALS INC | $35.0M | 1.20% | 3,418,068 | Common | SOLE |
| 05370A108 | RNAGBP | AVIDITY BIOSCIENCES INC | $34.8M | 1.19% | 757,576 | Common | SOLE |
| 28036F105 | EWTX | EDGEWISE THERAPEUTICS INC | $33.4M | 1.14% | 1,250,385 | Common | SOLE |
| 55287L101 | MBX | MBX BIOSCIENCES INC | $30.5M | 1.05% | 1,175,809 | Common | SOLE |
| 640979100 | NMRA | NEUMORA THERAPEUTICS INC. | $27.4M | 0.94% | 2,071,450 | Common | SOLE |
| 14179K101 | CRGX | CARGO THERAPEUTICS INC | $27.1M | 0.93% | 1,470,000 | Common | SOLE |
| 00653A107 | ADAPY | ADAPTIMMUNE THERAPEUTICS PLC | $26.0M | 0.89% | 27,404,070 | Common | SOLE |
| 878972108 | TECX | TECTONIC THERAPEUTIC INC | $25.7M | 0.88% | 849,143 | Common | SOLE |
| 89854M101 | TCRX | TSCAN THERAPEUTICS INC | $24.9M | 0.85% | 5,000,000 | Common | SOLE |
| 92915B106 | VYGR | VOYAGER THERAPEUTICS INC | $22.9M | 0.78% | 3,917,546 | Common | SOLE |
| 15117B202 | CLDX | CELLDEX THERAPEUTICS INC NEW | $22.1M | 0.76% | 650,000 | Common | SOLE |
| 088786108 | BCYC | BICYCLE THERAPEUTICS PLC | $20.6M | 0.70% | 910,000 | Common | SOLE |
| 462222100 | IONS | IONIS PHARMACEUTICALS INC | $20.0M | 0.69% | 500,000 | Common | SOLE |
| 26818M108 | DYN | DYNE THERAPEUTICS INC | $20.0M | 0.68% | 555,644 | Common | SOLE |
| 04683R106 | AVIR | ATEA PHARMACEUTICALS INC | $18.2M | 0.62% | 5,441,896 | Common | SOLE |
| 75943R102 | RLAY | RELAY THERAPEUTICS INC | $17.7M | 0.61% | 2,500,000 | Common | SOLE |
| N69605108 | PHVS | PHARVARIS N V | $16.7M | 0.57% | 900,000 | Common | SOLE |
| 46565G104 | 5E7 | ITEOS THERAPEUTICS INC | $16.4M | 0.56% | 1,608,616 | Common | SOLE |
| 558868105 | MDGL | MADRIGAL PHARMACEUTICALS INC | $15.9M | 0.54% | 75,000 | Common | SOLE |
| 23954D109 | DAWNGBX | DAY ONE BIOPHARMACEUTICALS I | $12.0M | 0.41% | 862,068 | Common | SOLE |
| 492327101 | KROS | KEROS THERAPEUTICS INC | $10.9M | 0.37% | 187,500 | Common | SOLE |
| 76029N106 | REPL | REPLIMUNE GROUP INC | $9.3M | 0.32% | 850,341 | Common | SOLE |
| 019818103 | — | ALLOVIR INC | $9.1M | 0.31% | 11,294,585 | Common | SOLE |
| 52635N103 | LENZ | LENZ THERAPEUTICS INC | $8.2M | 0.28% | 346,772 | Common | SOLE |
| 92539P101 | — | VERVE THERAPEUTICS INC | $6.0M | 0.21% | 1,250,000 | Common | SOLE |
| 37148K100 | GBIOGBX | GENERATION BIO CO | $5.1M | 0.17% | 2,046,867 | Common | SOLE |
| 36315X101 | LKFT | GALAPAGOS NV | $4.5M | 0.15% | 155,006 | Common | SOLE |
| 10806X102 | BBIO | BRIDGEBIO PHARMA INC | $4.3M | 0.15% | 170,172 | Common | SOLE |
| 046513206 | ATRA | ATARA BIOTHERAPEUTICS INC | $3.8M | 0.13% | 468,938 | Common | SOLE |
| 00032Q104 | WHWK | AADI BIOSCIENCE INC | $3.8M | 0.13% | 1,845,253 | Common | SOLE |
| 29772L108 | ETON | ETON PHARMACEUTICALS INC | $3.4M | 0.12% | 566,075 | Common | SOLE |
| N71542109 | PRQR | PROQR THRAPEUTICS N V | $3.3M | 0.11% | 1,835,991 | Common | SOLE |
| 74168J101 | PRME | PRIME MEDICINE INC | $2.7M | 0.09% | 700,000 | Common | SOLE |
| 43906K209 | HOOK | HOOKIPA PHARMA INC | $2.5M | 0.08% | 571,727 | Common | SOLE |
| 01626L204 | ALGS | ALIGOS THERAPEUTICS INC | $2.2M | 0.08% | 255,573 | Common | SOLE |
| 67080N119 | NUVB/WS | NUVATION BIO INC | $2.2M | 0.08% | 963,333 | Common | SOLE |
| 501976104 | KYTX | KYVERNA THERAPEUTICS INC | $2.2M | 0.08% | 450,000 | Common | SOLE |
| 29772L108 | ETON | ETON PHARMACEUTICALS INC | $1.4M | 0.05% | 228,000 | CALL | SOLE |
| 86889P117 | SRZNW | SURROZEN INC | $798,647 | 0.03% | 66,665 | Common | SOLE |
| 04317A107 | ARTV | ARTIVA BIOTHERAPEUTICS INC | $640,449 | 0.02% | 41,453 | Common | SOLE |
| 25056L103 | DSGN | DESIGN THERAPEUTICS INC | $289,627 | 0.01% | 53,834 | Common | SOLE |
| 556099109 | MGNX | MACROGENICS INC | $184,299 | 0.01% | 56,018 | Common | SOLE |
| 14171W111 | — | CAREMAX INC | $170,000 | 0.01% | 100,000 | Common | SOLE |
| 01671P100 | ALLKGUSD | ALLAKOS INC | $125,640 | 0.00% | 192,346 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.