EcoR1 Capital, LLC
Insider transactions at 7 companies
This page shows all SEC Form 4 filings attributed to EcoR1 Capital, LLC. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| 0001621227 | Sale | 33,931,740 | $0.11 | $3,732,491 | Jul 30, 2025 | |
| ZYME | Purchase | 49,502 | $11.43 | $565,808 | May 19, 2025 | |
| 0001808865 | Purchase | 1,658,978 | $7.41 | $12,293,027 | May 15, 2025 | |
| PRTA | Sale | 1,984,053 | $7.64 | $15,158,165 | May 2, 2025 | |
| ZYME | Purchase | 54,760 | $11.52 | $630,835 | Apr 16, 2025 | |
| ZYME | Purchase | 4,397 | $11.75 | $51,665 | Apr 1, 2025 | |
| ZYME | Purchase | 53,501 | $12.91 | $690,698 | Mar 26, 2025 | |
| ZYME | Purchase | 22,689 | $13.08 | $296,772 | Mar 20, 2025 | |
| ZYME | Purchase | 56,277 | $12.23 | $688,268 | Mar 19, 2025 | |
| ZYME | Purchase | 19,748 | $13.87 | $273,905 | Jan 16, 2025 | |
| ZYME | Purchase | 74,125 | $13.39 | $992,534 | Jan 15, 2025 | |
| ZYME | Purchase | 21,021 | $14.07 | $295,765 | Jan 10, 2025 | |
| ANAB | Purchase | 65,184 | $12.92 | $842,177 | Dec 31, 2024 | |
| ZYME | Purchase | 146,501 | $14.57 | $2,134,520 | Dec 30, 2024 | |
| ZYME | Purchase | 11,958 | $14.12 | $168,847 | Dec 27, 2024 | |
| ZYME | Purchase | 298,818 | $13.53 | $4,043,008 | Dec 23, 2024 | |
| 0001442836 | Other | 8,036,688 | — | — | Dec 19, 2024 | |
| TNGX | Sale | 1,143,124 | $2.92 | $3,337,922 | Nov 6, 2024 | |
| ANAB | Purchase | 273,972 | $36.50 | $9,999,978 | Aug 14, 2024 | |
| ZYME | Purchase | 3,350,000 | $8.12 | $27,202,000 | Jun 16, 2023 | |
| ZYME | Purchase | 200,000 | $8.00 | $1,600,000 | Mar 28, 2023 | |
| ZYME | Purchase | 144,100 | $9.49 | $1,367,509 | Jan 20, 2023 | |
| ZYME | Purchase | 203,000 | $10.00 | $2,030,000 | Jan 17, 2023 | |
| ZYME | Purchase | 920,000 | $7.65 | $7,038,000 | Jan 11, 2023 | |
| VYGR | Sale | 336,400 | $8.05 | $2,708,020 | Jan 11, 2023 | |
| VYGR | Purchase | 376,000 | $5.66 | $2,128,160 | Jun 21, 2022 | |
| ANAB | Sale | 668,237 | $21.63 | $14,453,966 | May 5, 2022 | |
| PRTA | Sale | 1,062,736 | $29.02 | $30,840,599 | May 5, 2022 | |
| PRTA | Purchase | 300,000 | $37.50 | $11,250,000 | Jan 12, 2022 | |
| 0001717452 | Sale | 545,000 | $1.55 | $844,750 | Dec 10, 2021 | |
| NUVB | Purchase | 151,544 | $10.45 | $1,583,635 | Nov 24, 2021 | |
| CRVS | Sale | 2,000,000 | $4.96 | $9,920,000 | Sep 30, 2021 | |
| PRTA | X | 250,000 | $30.00 | $7,500,000 | Jun 18, 2021 | |
| PRTA | Purchase | 875,000 | $20.75 | $18,156,250 | Mar 24, 2021 | |
| ANAB | Purchase | 531,000 | $18.70 | $9,929,700 | Mar 8, 2021 | |
| PRTA | Purchase | 44,400 | $21.05 | $934,620 | Feb 24, 2021 | |
| ANAB | Purchase | 29,500 | $25.48 | $751,660 | Feb 23, 2021 | |
| PRTA | Purchase | 44,100 | $3.68 | $162,288 | Feb 18, 2021 | |
| PRTA | Purchase | 44,100 | $23.65 | $1,042,965 | Feb 18, 2021 | |
| PRTA | Purchase | 89,200 | $22.78 | $2,031,976 | Feb 12, 2021 | |
| NUVB | Award / Grant | 2,365,511 | — | — | Feb 10, 2021 | |
| 0001718108 | Sale | 332,780 | $7.14 | $2,376,049 | Sep 1, 2020 | |
| NUVB | Purchase | 390,000 | $10.00 | $3,900,000 | Jul 6, 2020 | |
| 0001722271 | Purchase | 1,176,000 | $17.00 | $19,992,000 | Jun 30, 2020 | |
| 0000934473 | Purchase | 9,417 | $2.31 | $21,753 | Mar 28, 2014 |