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
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- Peter Lynch
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| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2023-12-27 4:05 pm Purchase |
2023-12-18 | 13G | Mirati Therapeutics, Inc. MRTX |
EcoR1 Capital, LLC | 7,396,979 10.500% |
1,648,580 (+28.68%) |
Filing History |
| 2023-11-20 7:00 pm Purchase |
2023-11-16 | 13G | Atara Biotherapeutics, Inc. ATRA |
EcoR1 Capital, LLC | 402,682 9.900% |
402,682 (New Position) |
Filing History |
| 2023-10-16 3:33 pm Purchase |
2023-10-13 | 13G | Tango Therapeutics, Inc. TNGX |
EcoR1 Capital, LLC | 13,330,736 13.100% |
5,503,100 (+70.30%) |
Filing History |
| 2023-10-12 12:25 pm Purchase |
2023-10-02 | 13G | Immunome, Inc. IMNM |
EcoR1 Capital, LLC | 3,879,415 9.100% |
3,879,415 (New Position) |
Filing History |
| 2023-10-02 4:08 pm Purchase |
2023-09-22 | 13G | Mirati Therapeutics, Inc. MRTX |
EcoR1 Capital, LLC | 5,748,399 8.500% |
5,748,399 (New Position) |
Filing History |
| 2023-09-21 5:16 pm Purchase |
2023-09-11 | 13G | Tango Therapeutics, Inc. TNGX |
EcoR1 Capital, LLC | 7,827,636 7.700% |
7,827,636 (New Position) |
Filing History |
| 2023-09-13 5:02 pm Purchase |
2023-07-26 | 13G | Third Harmonic Bio, Inc. THRD |
EcoR1 Capital, LLC | 2,982,444 7.400% |
2,982,444 (New Position) |
Filing History |
| 2023-07-27 5:11 pm Purchase |
2023-07-27 | 13G | Mersana Therapeutics, Inc. MRSN |
EcoR1 Capital, LLC | 19,364,688 16.900% |
19,364,688 (New Position) |
Filing History |
| 2023-07-18 5:16 pm Purchase |
2023-07-18 | 13G | Apellis Pharmaceuticals, Inc. APLS |
EcoR1 Capital, LLC | 6,307,547 5.400% |
6,307,547 (New Position) |
Filing History |
| 2023-06-21 4:05 pm Purchase |
2023-06-16 | 13G | Zymeworks Inc. ZYME |
EcoR1 Capital, LLC | 13,437,473 19.900% |
5,868,900 (+77.54%) |
Filing History |
| 2023-06-16 4:12 pm Purchase |
2023-06-07 | 13G | Revolution Medicines, Inc. RVMD |
EcoR1 Capital, LLC | 7,198,700 6.800% |
2,720,650 (+60.76%) |
Filing History |
| 2023-06-07 4:45 pm Purchase |
2023-06-07 | 13G | Galapagos NV GLPG |
EcoR1 Capital, LLC | 6,505,890 9.900% |
2,063,538 (+46.45%) |
Filing History |
| 2023-06-05 4:09 pm Purchase |
2023-05-26 | 13G | TScan Therapeutics, Inc. TCRX |
EcoR1 Capital, LLC | 5,000,000 11.700% |
5,000,000 (New Position) |
Filing History |
| 2023-02-14 1:50 pm Purchase |
2022-12-31 | 13G | Galapagos NV GLPG |
EcoR1 Capital, LLC | 4,442,352 6.700% |
1,035,106 (+30.38%) |
Filing History |
| 2023-02-14 1:36 pm Sale |
2022-12-31 | 13G | Avidity Biosciences, Inc. RNA |
EcoR1 Capital, LLC | 0 0.000% |
-2,759,505 (Position Closed) |
Filing History |
| 2023-02-14 1:22 pm Sale |
2022-12-31 | 13G | 2seventy bio, Inc. TSVT |
EcoR1 Capital, LLC | 1,143,494 3.000% |
-773,569 (-40.35%) |
Filing History |
| 2023-02-14 1:03 pm Sale |
2022-12-31 | 13G | HOOKIPA Pharma Inc. HOOK |
EcoR1 Capital, LLC | 497,349 9.100% |
-11,737 (-2.31%) |
Filing History |
| 2023-02-14 12:10 pm Purchase |
2022-04-29 | 13G | Tempest Therapeutics, Inc. TPST |
EcoR1 Capital, LLC | 80,985 9.990% |
80,985 (New Position) |
Filing History |
| 2023-02-13 2:08 pm Sale |
2022-12-31 | 13G | Surface Oncology, Inc. SURF |
EcoR1 Capital, LLC | 3,924,713 6.500% |
-728,287 (-15.65%) |
Filing History |
| 2023-02-13 1:55 pm Unchanged |
2022-12-31 | 13G | Arvinas, Inc. ARVN |
EcoR1 Capital, LLC | 3,123,300 5.900% |
0 (Unchanged) |
Filing History |