EcoR1 Capital, LLC Q1 2021 Filing
Filed May 17, 2021
Portfolio Value
$2.3T
Holdings
70
Report Date
Q1 2021
Filing Type
13F-HR
All Holdings (70 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | PRTAPROTHENA CORP PLC | 11,284,280 | $283.5B | 12.57% | Call |
| 2 | XNCRXENCOR INC | 4,900,306 | $211.0B | 9.36% | |
| 3 | MORFMORPHIC HLDG INC | 2,999,315 | $189.8B | 8.42% | |
| 4 | ANABANAPTYSBIO INC | 7,151,624 | $154.1B | 6.84% | |
| 5 | NUVBNUVATION BIO INC | 13,247,017 | $138.4B | 6.14% | |
| 6 | RLAYRELAY THERAPEUTICS INC | 3,429,363 | $118.6B | 5.26% | |
| 7 | SPRYSILVERBACK THERAPEUTICS INC | 2,533,635 | $110.5B | 4.90% | |
| 8 | KURAKURA ONCOLOGY INC | 3,692,637 | $104.4B | 4.63% | |
| 9 | MRTXEURMIRATI THERAPEUTICS INC | 464,298 | $79.5B | 3.53% | |
| 10 | ORICORIC PHARMACEUTICALS INC | 3,092,218 | $75.8B | 3.36% | |
| 11 | STTKSHATTUCK LABS INC | 2,458,259 | $71.9B | 3.19% | |
| 12 | NRIXNURIX THERAPEUTICS INC | 2,019,019 | $62.8B | 2.78% | |
| 13 | RCUSARCUS BIOSCIENCES INC | 2,195,892 | $61.7B | 2.73% | |
| 14 | SLDBSOLID BIOSCIENCES INC | 9,202,702 | $50.9B | 2.26% | |
| 15 | RNAAVIDITY BIOSCIENCES INC | 2,103,950 | $45.9B | 2.04% | |
| 16 | EWTXEDGEWISE THERAPEUTICS INC | 1,224,175 | $39.8B | 1.76% | |
| 17 | —NEOLEUKIN THERAPEUTICS INC | 3,122,704 | $38.4B | 1.70% | |
| 18 | BCELATRECA INC | 2,426,685 | $37.2B | 1.65% | |
| 19 | DSGNDESIGN THERAPEUTICS INC | 1,137,940 | $34.0B | 1.51% | |
| 20 | 2JQGRITSTONE ONCOLOGY INC | 3,421,287 | $32.3B | 1.43% | |
| 21 | ACIUAC IMMUNE SA | 3,648,163 | $27.8B | 1.23% | |
| 22 | —AKOUOS INC | 1,975,984 | $27.4B | 1.22% | |
| 23 | OVIDOVID THERAPEUTICS INC | 6,082,200 | $24.4B | 1.08% | |
| 24 | ARVNARVINAS INC | 318,704 | $21.1B | 0.93% | |
| 25 | 290ACHINOOK THERAPEUTICS INC | 1,250,001 | $19.4B | 0.86% | |
| 26 | ALECALECTOR INC | 602,600 | $12.1B | 0.54% | |
| 27 | ELDNELEDON PHARMACEUTICALS INC | 1,115,721 | $11.9B | 0.53% | |
| 28 | KRON1USDKRONOS BIO INC | 387,357 | $11.3B | 0.50% | |
| 29 | —APPLIED MOLECULAR TRANS INC | 239,443 | $10.5B | 0.47% | |
| 30 | —ALLOVIR INC | 447,012 | $10.5B | 0.46% | |
| 31 | NUVB/WSNUVATION BIO INC | 963,333 | $10.1B | 0.45% | |
| 32 | —TRANSLATE BIO INC | 596,900 | $9.8B | 0.44% | |
| 33 | —BCTG ACQUISITION CORP | 800,000 | $8.9B | 0.39% | |
| 34 | 5E7ITEOS THERAPEUTICS INC | 260,000 | $8.9B | 0.39% | |
| 35 | NVLSEURALPINE IMMUNE SCIENCES INC | 741,290 | $7.9B | 0.35% | |
| 36 | —SYROS PHARMACEUTICALS INC | 1,000,000 | $7.5B | 0.33% | |
| 37 | CCCCC4 THERAPEUTICS INC | 200,000 | $7.4B | 0.33% | |
| 38 | —MAGENTA THERAPEUTICS INC | 556,354 | $6.6B | 0.29% | |
| 39 | —LOGICBIO THERAPEUTICS INC | 688,700 | $5.0B | 0.22% | |
| 40 | BOLT1EURBOLT BIOTHERAPEUTICS INC | 150,000 | $4.9B | 0.22% | |
| 41 | —JIYA ACQUISITION CORP | 500,000 | $4.9B | 0.22% | |
| 42 | —CYCLERION THERAPEUTICS INC | 1,606,276 | $4.5B | 0.20% | |
| 43 | —HEALTH SCIENCES ACQ CORP 2 | 400,000 | $4.5B | 0.20% | |
| 44 | NGMUSDNGM BIOPHARMACEUTICALS INC | 143,567 | $4.2B | 0.19% | |
| 45 | KYMRKYMERA THERAPEUTICS INC | 100,000 | $3.9B | 0.17% | |
| 46 | DYNDYNE THERAPEUTICS INC | 215,000 | $3.3B | 0.15% | |
| 47 | —VINCERX PHARMA INC | 150,000 | $2.9B | 0.13% | |
| 48 | —AERPIO PHARMACEUTICALS INC | 2,072,782 | $2.7B | 0.12% | |
| 49 | BCABBIOATLA INC | 50,000 | $2.5B | 0.11% | |
| 50 | —BCLS ACQUISITION CORP | 200,000 | $2.1B | 0.09% | |
| 51 | MLTXHELIX ACQUISITION CORP | 200,000 | $2.0B | 0.09% | |
| 52 | —FRAZIER LIFESCIENCES ACQU CO | 200,000 | $2.0B | 0.09% | |
| 53 | —5 01 ACQUISITION CORP | 200,000 | $2.0B | 0.09% | |
| 54 | —EUCRATES BIOMEDICAL ACQU COR | 200,000 | $2.0B | 0.09% | |
| 55 | —CONSONANCE HFW ACQUISITION C | 200,000 | $2.0B | 0.09% | |
| 56 | —CODIAK BIOSCIENCES INC | 115,195 | $1.7B | 0.08% | |
| 57 | PMVPPMV PHARMACEUTICALS INC | 50,000 | $1.6B | 0.07% | |
| 58 | —ARYA SCIENCES ACQU CORP IV | 150,000 | $1.6B | 0.07% | |
| 59 | RPTXREPARE THERAPEUTICS INC | 50,000 | $1.5B | 0.07% | |
| 60 | —FS DEVELOPMENT CORP II | 150,000 | $1.5B | 0.07% | |
| 61 | MGTXMEIRAGTX HLDGS PLC | 94,819 | $1.4B | 0.06% | |
| 62 | —DEERFIELD HEALTHCARE TECH AC | 100,000 | $1.2B | 0.05% | |
| 63 | —TURMERIC ACQUISITION CORP | 100,000 | $977.0M | 0.04% | |
| 64 | —KINNATE BIOPHARMA INC | 25,000 | $779.0M | 0.03% | |
| 65 | —EUCRATES BIOMEDICAL ACQU COR | 66,666 | $665.0M | 0.03% | |
| 66 | —LIFESCI ACQUISITION II CORP | 56,500 | $573.0M | 0.03% | |
| 67 | —F-STAR THERAPEUTICS INC | 46,000 | $498.0M | 0.02% | |
| 68 | —OMEGA ALPHA SPAC | 50,000 | $495.0M | 0.02% | |
| 69 | —METACRINE INC | 62,207 | $386.0M | 0.02% | |
| 70 | —TURMERIC ACQUISITION CORP | 33,333 | $326.0M | 0.01% |