Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-04-08 4:24 pm Purchase | 2025-04-04 | 13D | Zymeworks Inc. ZYME | EcoR1 Capital LLC | 17,699,774 25.400% | 841,356 (+4.99%) | Filing History |
| 2025-03-17 7:50 pm Purchase | 2025-03-13 | 13D | Zymeworks Inc. ZYME | EcoR1 Capital LLC | 16,858,418 24.200% | 1,138,257 (+7.24%) | Filing History |
| 2025-02-18 6:25 pm Purchase | 2025-02-17 | 13D | Zymeworks Inc. ZYME | EcoR1 Capital LLC | 15,720,161 22.800% | 309,083 (+2.01%) | Filing History |
| 2025-02-14 1:17 pm Purchase | 2024-12-31 | 13G | AlloVir, Inc. ALVR | EcoR1 Capital LLC | 408,688 8.100% | 408,688 (New Position) | Filing History |
| 2025-02-14 1:04 pm Purchase | 2024-12-31 | 13G | Eton Pharmaceuticals, Inc. ETON | EcoR1 Capital LLC | 1,981,003 7.700% | 583,334 (+41.74%) | Filing History |
| 2025-02-14 12:47 pm Sale | 2024-12-31 | 13G | Atea Pharmaceuticals, Inc. AVIR | EcoR1 Capital LLC | 3,341,653 4.000% | -2,100,243 (-38.59%) | Filing History |
| 2025-02-14 12:33 pm Sale | 2024-12-31 | 13G | Tango Therapeutics, Inc. TNGX | EcoR1 Capital LLC | 10,630,736 9.900% | -2,700,000 (-20.25%) | Filing History |
| 2025-02-14 12:26 pm Sale | 2024-12-31 | 13G | HOOKIPA Pharma Inc. HOOK | EcoR1 Capital LLC | 388,861 4.000% | -182,866 (-31.98%) | Filing History |
| 2025-02-14 12:11 pm Sale | 2024-12-31 | 13G | WHITEHAWK THERAPEUTICS, INC. C WHWK | EcoR1 Capital LLC | 345,253 1.400% | -1,500,000 (-81.29%) | Filing History |
| 2025-01-13 7:18 pm Purchase | 2025-01-10 | 13D | Zymeworks Inc. ZYME | EcoR1 Capital LLC | 15,411,078 22.400% | 718,797 (+4.89%) | Filing History |
| 2025-01-03 7:45 pm Unchanged | 2024-12-31 | 13D | Prothena Corporation plc PRTA | EcoR1 Capital LLC | 11,584,280 21.500% | 0 (Unchanged) | Filing History |
| 2024-12-23 7:54 pm Purchase | 2024-12-19 | 13D | Zymeworks Inc. ZYME | EcoR1 Capital LLC | 14,692,281 21.300% | 559,990 (+3.96%) | Filing History |
| 2024-12-23 7:50 pm Sale | 2024-12-19 | 13G | Mersana Therapeutics, Inc. MRSN | EcoR1 Capital LLC | 11,578,447 9.990% | -7,786,241 (-40.21%) | Filing History |
| 2024-12-17 5:01 pm Purchase | 2024-12-10 | 13G | uniQure N.V. QURE | EcoR1 Capital LLC | 3,632,087 7.500% | 3,632,087 (New Position) | Filing History |
| 2024-12-09 4:04 pm Purchase | 2024-12-02 | 13G | Eton Pharmaceuticals, Inc. ETON | EcoR1 Capital LLC | 1,397,669 5.400% | 1,397,669 (New Position) | Filing History |
| 2024-11-15 10:34 am Sale | 2024-09-30 | 13G | Atea Pharmaceuticals, Inc. AVIR | EcoR1 Capital LLC | 5,441,896 6.400% | -1,553,965 (-22.21%) | Filing History |
| 2024-11-14 6:22 pm Sale | 2024-09-30 | 13G | Edgewise Therapeutics, Inc. EWTX | EcoR1 Capital LLC | 1,250,385 1.300% | -2,242,809 (-64.21%) | Filing History |
| 2024-11-14 6:19 pm Purchase | 2024-09-30 | 13G | Aligos Therapeutics, Inc. ALGS | EcoR1 Capital LLC | 356,117 9.990% | 356,117 (New Position) | Filing History |
| 2024-11-14 6:16 pm Purchase | 2024-09-30 | 13G | Xencor, Inc. XNCR | EcoR1 Capital LLC | 6,719,304 9.400% | 1,436,788 (+27.20%) | Filing History |
| 2024-11-14 6:13 pm Purchase | 2024-09-30 | 13G | Voyager Therapeutics, Inc. VYGR | EcoR1 Capital LLC | 5,617,719 9.990% | 1,766,212 (+45.86%) | Filing History |