EcoR1 Capital, LLC Q1 2025 Filing
Filed May 15, 2025
Portfolio Value
$1.7T
Holdings
44
Report Date
Q1 2025
Filing Type
13F-HR
All Holdings (44 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | APLSAPELLIS PHARMACEUTICALS INC | 11,895,808 | $260.2B | 15.43% | |
| 2 | JAZZJAZZ PHARMACEUTICALS PLC | 1,706,469 | $211.9B | 12.57% | |
| 3 | ZYMEZYMEWORKS INC | 17,259,548 | $205.6B | 12.19% | |
| 4 | ANABANAPTYSBIO INC | 7,880,094 | $146.5B | 8.69% | |
| 5 | CRNXCRINETICS PHARMACEUTICALS IN | 4,288,120 | $143.8B | 8.53% | |
| 6 | PRTAPROTHENA CORP PLC | 11,584,280 | $143.4B | 8.50% | |
| 7 | SRPTSAREPTA THERAPEUTICS INC | 1,292,386 | $82.5B | 4.89% | |
| 8 | XNCRXENCOR INC | 6,144,767 | $65.4B | 3.88% | |
| 9 | CRSPCRISPR THERAPEUTICS AG | 1,389,276 | $47.3B | 2.80% | |
| 10 | QUREUNIQURE NV | 4,123,971 | $43.7B | 2.59% | Call |
| 11 | JANXJANUX THERAPEUTICS INC | 1,469,818 | $39.7B | 2.35% | |
| 12 | IMNMIMMUNOME INC | 4,079,415 | $27.5B | 1.63% | |
| 13 | ETONETON PHARMACEUTICALS INC | 1,989,788 | $25.8B | 1.53% | Call |
| 14 | MDGLMADRIGAL PHARMACEUTICALS INC | 75,000 | $24.8B | 1.47% | |
| 15 | ORICORIC PHARMACEUTICALS INC | 3,418,068 | $19.1B | 1.13% | |
| 16 | AKROAKERO THERAPEUTICS INC | 440,000 | $17.8B | 1.06% | |
| 17 | KURAKURA ONCOLOGY INC | 2,640,298 | $17.4B | 1.03% | |
| 18 | TECXTECTONIC THERAPEUTIC INC | 935,121 | $16.6B | 0.98% | |
| 19 | RNAAVIDITY BIOSCIENCES INC | 557,576 | $16.5B | 0.98% | |
| 20 | NGNENEUROGENE INC | 1,271,342 | $14.9B | 0.88% | |
| 21 | TNGXTANGO THERAPEUTICS INC | 10,630,736 | $14.6B | 0.86% | |
| 22 | VYGRVOYAGER THERAPEUTICS INC | 3,917,546 | $13.2B | 0.79% | |
| 23 | BEAMBEAM THERAPEUTICS INC | 526,685 | $10.3B | 0.61% | |
| 24 | MBXMBX BIOSCIENCES INC | 1,259,273 | $9.3B | 0.55% | |
| 25 | DNAGINKGO BIOWORKS HOLDINGS INC | 1,462,328 | $8.3B | 0.49% | |
| 26 | REPLREPLIMUNE GROUP INC | 850,341 | $8.3B | 0.49% | |
| 27 | BCYCBICYCLE THERAPEUTICS PLC | 910,000 | $7.7B | 0.46% | |
| 28 | DAWNDAY ONE BIOPHARMACEUTICALS I | 862,068 | $6.8B | 0.41% | |
| 29 | VERVVERVE THERAPEUTICS INC | 1,250,000 | $5.7B | 0.34% | |
| 30 | ADAPYADAPTIMMUNE THERAPEUTICS PLC | 27,404,070 | $5.4B | 0.32% | |
| 31 | GLPGGALAPAGOS NV | 155,006 | $3.9B | 0.23% | |
| 32 | WHWKWHITEHAWK THERAPEUTICS INC | 2,082,000 | $3.7B | 0.22% | |
| 33 | ATRAATARA BIOTHERAPEUTICS INC | 573,183 | $3.4B | 0.20% | |
| 34 | SLDBSOLID BIOSCIENCES INC | 744,450 | $2.8B | 0.16% | |
| 35 | KROSKEROS THERAPEUTICS INC | 187,500 | $1.9B | 0.11% | |
| 36 | NUVB/WSNUVATION BIO INC | 963,333 | $1.7B | 0.10% | |
| 37 | RLAYRELAY THERAPEUTICS INC | 641,426 | $1.7B | 0.10% | |
| 38 | KLRSKALARIS THERAPEUTICS INC | 201,718 | $1.6B | 0.10% | |
| 39 | PRMEPRIME MEDICINE INC | 700,000 | $1.4B | 0.08% | |
| 40 | MTSRMETSERA INC | 50,000 | $1.4B | 0.08% | |
| 41 | TCRXTSCAN THERAPEUTICS INC | 662,833 | $914.7M | 0.05% | |
| 42 | SRZNWSURROZEN INC | 66,665 | $777.3M | 0.05% | |
| 43 | ALGSALIGOS THERAPEUTICS INC | 88,569 | $730.7M | 0.04% | |
| 44 | UPBUPSTREAM BIO INC | 60,000 | $367.2M | 0.02% |