$792 Million is the total value of EcoR1 Capital, LLC's 41 reported holdings in Q3 2019. The portfolio turnover from Q2 2019 to Q3 2019 was 59.0% .
| Value | Shares | ↓ Weighting | ||||||
|---|---|---|---|---|---|---|---|---|
| XNCR | Buy | XENCOR ORD | $84,378,000 | -11.8% | 2,501,557 | +7.1% | 10.66% | +10.3% |
| PRTA | Buy | PROTHENA ORD | $73,905,000 | +866.7% | 9,426,640 | +1203.3% | 9.33% | +1107.4% |
| ONCE | Buy | SPARK THERAPEUTICS ORD | $69,320,000 | +10.3% | 714,789 | +16.4% | 8.75% | +37.8% |
| KURA | Sell | KURA ONCOLOGY ORD | $61,316,000 | -41.0% | 4,041,953 | -23.4% | 7.74% | -26.3% |
| ARGX | Sell | ARGENX ADR REP ORDsponsored adr | $60,532,000 | -26.4% | 531,165 | -8.6% | 7.64% | -8.1% |
| DRNA | Buy | DICERNA PHARMACEUTICALS ORD | $56,908,000 | +9.0% | 3,962,978 | +19.5% | 7.19% | +36.2% |
| FGEN | Sell | FIBROGEN ORD | $47,845,000 | -30.0% | 1,293,807 | -14.4% | 6.04% | -12.5% |
| IRWD | IRONWOOD PHARMA CL A ORD | $40,104,000 | -21.5% | 4,671,408 | 0.0% | 5.06% | -1.9% | |
| MORF | Sell | MORPHIC HOLDING ORD | $39,145,000 | -12.9% | 2,161,520 | -4.6% | 4.94% | +8.9% |
| SLDB | Buy | SOLID BIOSCIENCES ORD | $34,563,000 | +626.9% | 3,342,691 | +304.2% | 4.36% | +809.4% |
| PRVL | PREVAIL THERAPEUTICS ORD | $29,381,000 | -7.0% | 2,392,556 | 0.0% | 3.71% | +16.3% | |
| FGEN | Buy | FIBROGEN ORDcall | $24,130,000 | +92.5% | 652,500 | +135.1% | 3.05% | +140.5% |
| HARP | Buy | HARPOON THERAPEUTICS ORD | $19,990,000 | +14.0% | 1,463,423 | +8.5% | 2.52% | +42.5% |
| BCEL | Sell | ATRECA CL A ORD | $18,132,000 | -35.3% | 1,481,411 | -0.4% | 2.29% | -19.1% |
| CHMA | CHIASMA ORD | $15,067,000 | -33.7% | 3,043,827 | 0.0% | 1.90% | -17.2% | |
| SRPT | New | SAREPTA THERAPEUTICS ORD | $14,292,000 | – | 189,745 | +100.0% | 1.80% | – |
| XCUR | New | EXICURE ORD | $13,954,000 | – | 5,515,225 | +100.0% | 1.76% | – |
| GOSS | New | GOSSAMER BIO INC ORDcall | $13,432,000 | – | 800,000 | +100.0% | 1.70% | – |
| EIGR | Sell | EIGER BIOPHARMACEUTICAL ORD | $10,865,000 | -9.8% | 1,060,043 | -6.7% | 1.37% | +12.7% |
| CYCN | CYCLERION THERAPEUTICS ORD | $9,408,000 | +5.9% | 776,206 | 0.0% | 1.19% | +32.3% | |
| NXTC | New | NEXTCURE ORD | $7,728,000 | – | 250,500 | +100.0% | 0.98% | – |
| RCUS | Sell | ARCUS BIOSCIENCES ORD | $6,866,000 | -41.7% | 754,505 | -49.3% | 0.87% | -27.2% |
| CRIS | CURIS ORD | $6,680,000 | +20.4% | 2,982,208 | 0.0% | 0.84% | +50.4% | |
| NLTX | New | NEOLEUKIN THERAPEUTICS ORD | $6,458,000 | – | 2,265,880 | +100.0% | 0.82% | – |
| ASMB | ASSEMBLY BIOSCIENCES ORDcall | $4,898,000 | -27.1% | 498,300 | 0.0% | 0.62% | -8.8% | |
| MRTX | Sell | MIRATI THERAPEUTICS ORD | $3,445,000 | -94.4% | 44,221 | -92.6% | 0.44% | -93.0% |
| MRUS | New | MERUS ORD | $2,951,000 | – | 165,600 | +100.0% | 0.37% | – |
| RARE | Sell | ULTRAGENYX PHARMACEUTICAL ORD | $2,633,000 | -91.7% | 61,554 | -87.6% | 0.33% | -89.6% |
| SURF | Sell | SURFACE ONCOLOGY ORD | $2,199,000 | -66.3% | 1,548,888 | -33.0% | 0.28% | -57.8% |
| RUBY | Sell | RUBIUS THERAPEUTICS ORD | $2,042,000 | -72.0% | 260,152 | -43.8% | 0.26% | -64.9% |
| VCEL | VERICEL ORD | $1,983,000 | -19.9% | 131,001 | 0.0% | 0.25% | 0.0% | |
| IGMS | New | IGM BIOSCIENCES ORD | $1,775,000 | – | 100,000 | +100.0% | 0.22% | – |
| ZFGN | New | ZAFGEN ORD | $1,437,000 | – | 1,944,500 | +100.0% | 0.18% | – |
| CRTX | New | CORTEXYME ORD | $1,246,000 | – | 49,993 | +100.0% | 0.16% | – |
| ASMB | New | ASSEMBLY BIOSCIENCES ORD | $950,000 | – | 96,600 | +100.0% | 0.12% | – |
| AUTL | New | AUTOLUS THERAPEUTICS ADRsponsored adr | $859,000 | – | 69,155 | +100.0% | 0.11% | – |
| RGLS | Sell | REGULUS THERAPEUTICS ORD | $755,000 | -45.6% | 1,049,088 | -5.6% | 0.10% | -32.1% |
| UBX | Sell | UNITY BIOTECHNOLOGY ORD | $314,000 | -96.8% | 51,400 | -95.1% | 0.04% | -96.0% |
| TCRR | Exit | TCR2 THERAPEUTICS ORD | $0 | – | -16,114 | -100.0% | -0.02% | – |
| GMDA | Exit | GAMIDA CELL ORD | $0 | – | -52,120 | -100.0% | -0.03% | – |
| SYRS | Exit | SYROS PHARMACEUTICALS ORD | $0 | – | -248,480 | -100.0% | -0.23% | – |
| ADRO | Exit | ADURO BIOTECH ORD | $0 | – | -1,761,421 | -100.0% | -0.27% | – |
| KZR | Exit | KEZAR LIFE SCIENCES ORD | $0 | – | -583,293 | -100.0% | -0.45% | – |
| NGM | Exit | NGM BIOPHARMACEUTICALS ORD | $0 | – | -316,900 | -100.0% | -0.47% | – |
| RYTM | Exit | RHYTHM PHARMACEUTICALS ORD | $0 | – | -223,167 | -100.0% | -0.50% | – |
| AQXP | Exit | AQUINOX PHARMACEUTICALS ORD | $0 | – | -2,265,880 | -100.0% | -0.54% | – |
| MRSN | Exit | MERSANA THERAPEUTICS ORD | $0 | – | -1,392,231 | -100.0% | -0.57% | – |
| ARQL | Exit | ARQULE ORD | $0 | – | -1,300,000 | -100.0% | -1.45% | – |
| GOSS | Exit | GOSSAMER BIO INC ORD | $0 | – | -772,096 | -100.0% | -1.73% | – |
| CRSP | Exit | CRISPR THERAPEUTICS ORD | $0 | – | -1,610,250 | -100.0% | -7.66% | – |
Original filings
The following EDGAR filing(s) were analyzed to create this report:
- View 13F-HR filed 2019-11-14
Top long-term holdings
| Name | Quarters owned | Latest quarter owned | Max weighting |
|---|---|---|---|
| KURA ONCOLOGY ORD | 32 | Q3 2023 | 10.5% |
| XENCOR ORD | 25 | Q3 2023 | 12.6% |
| ASSEMBLY BIOSCIENCES ORD | 23 | Q3 2020 | 19.0% |
| FIBROGEN ORD | 22 | Q1 2020 | 12.4% |
| PROTHENA ORD | 20 | Q3 2023 | 28.0% |
| IRONWOOD PHARMA CL A ORD | 20 | Q1 2020 | 13.9% |
| GALAPAGOS NV SPON ADR | 19 | Q3 2023 | 12.0% |
| MORPHIC HOLDING ORD | 18 | Q3 2023 | 8.5% |
| ARCUS BIOSCIENCES ORD | 17 | Q1 2022 | 7.1% |
| ANAPTYSBIO INC | 16 | Q3 2023 | 8.3% |
View EcoR1 Capital, LLC's complete holdings history.
Latest significant ownerships (13-D/G)
| Filed | Shares | Percentage | |
|---|---|---|---|
| Mersana Therapeutics, Inc. | July 27, 2023 | 19,364,688 | 16.9% |
| TScan Therapeutics, Inc. | June 05, 2023 | 5,000,000 | 11.7% |
| 2seventy bio, Inc. | February 14, 2023 | 1,143,494 | 3.0% |
| Avidity Biosciences, Inc.Sold out | February 14, 2023 | 0 | 0.0% |
| Surface Oncology, Inc. | February 13, 2023 | 3,924,713 | 6.5% |
| Akouos, Inc.Sold out | February 10, 2023 | 0 | 0.0% |
| Alector, Inc. | February 10, 2023 | 4,056,548 | 4.9% |
| Arcus Biosciences, Inc.Sold out | February 10, 2023 | 0 | 0.0% |
| Gritstone bio, Inc.Sold out | February 10, 2023 | 0 | 0.0% |
| Ovid Therapeutics Inc. | February 10, 2023 | 6,117,400 | 8.7% |
View EcoR1 Capital, LLC's complete significant-ownership history.
Latest filings
| Type | Filed |
|---|---|
| SC 13G/A | 2024-04-08 |
| 3 | 2024-03-26 |
| SC 13G/A | 2024-03-26 |
| SC 13G | 2024-03-11 |
| SC 13D | 2024-02-22 |
| SC 13G | 2024-02-16 |
| 13F-HR | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
View EcoR1 Capital, LLC's complete filings history.
All filings
- Holdings (13F-HR)
- Significant ownership (13-D/G)
- Insider transactions (4, 5, 6)
- Events (8-K)
- Shareholder votes (proxy)
View complete filings history.