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 |
| 2022-02-14 1:39 pm Purchase | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | EcoR1 Capital, LLC | 6,319,232 9.300% | 1,384,300 (+28.05%) | Filing History |
| 2022-02-11 7:44 pm Sale | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | BIOTECHNOLOGY VALUE FUND L P | 0 0.000% | -2,695,418 (Position Closed) | Filing History |
| 2022-02-11 7:18 pm Purchase | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Avidity Partners Management LP | 6,990,194 9.900% | 2,443,380 (+53.74%) | Filing History |
| 2022-02-11 1:47 pm Purchase | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | STATE STREET CORP STT | 3,673,779 5.400% | 3,673,779 (New Position) | Filing History |
| 2022-02-10 7:58 pm Unchanged | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Versant Venture Capital V, L.P. | 2,895,695 4.300% | 0 (Unchanged) | Filing History |
| 2022-02-09 09:19 am Sale | 2022-02-08 | 13G | GRITSTONE BIO INC GRTSQ | FMR LLC | 2,068,151 3.041% | -802,833 (-27.96%) | Filing History |
| 2022-02-04 4:12 pm Purchase | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | BlackRock Inc. BLK | 3,791,433 5.600% | 1,825,927 (+92.90%) | Filing History |
| 2022-02-04 07:59 am Sale | 2021-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Wellington Management Portfolios (Dublin) Public Ltd Co | 0 0.000% | -2,460,320 (Position Closed) | Filing History |
| 2021-09-27 4:01 pm Purchase | 2021-09-17 | 13G | GRITSTONE BIO INC GRTSQ | Redmile Group, LLC | 5,729,916 9.900% | 814,187 (+16.56%) | Filing History |
| 2021-09-21 3:36 pm Purchase | 2021-09-17 | 13G | GRITSTONE BIO INC GRTSQ | Frazier Life Sciences Public Fund, L.P. | 4,728,551 8.700% | 4,728,551 (New Position) | Filing History |
| 2021-04-12 08:02 am Sale | 2021-03-31 | 13G | GRITSTONE BIO INC GRTSQ | Wellington Management Group LLP | 1,014,555 2.070% | -3,312,237 (-76.55%) | Filing History |
| 2021-02-16 4:10 pm Purchase | 2020-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Redmile Group, LLC | 4,915,729 9.900% | 1,799,135 (+57.73%) | Filing History |
| 2021-02-16 07:30 am Unchanged | 2020-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Versant Venture Capital V, L.P. | 2,895,695 6.100% | 0 (Unchanged) | Filing History |
| 2021-02-12 6:12 pm Sale | 2020-12-31 | 13G | GRITSTONE BIO INC GRTSQ | The Column Group II, LP | 0 0.000% | -3,102,934 (Position Closed) | Filing History |
| 2021-02-11 10:28 am Sale | 2020-12-31 | 13G | GRITSTONE BIO INC GRTSQ | Casdin Capital LLC | 0 0.000% | -2,160,000 (Position Closed) | Filing History |
| 2021-02-10 08:21 am Purchase | 2021-01-29 | 13G | GRITSTONE BIO INC GRTSQ | Wellington Management Group LLP | 4,326,792 10.350% | 4,326,792 (New Position) | Filing History |
| 2021-02-08 10:23 am Purchase | 2021-02-05 | 13G | GRITSTONE BIO INC GRTSQ | FMR LLC | 2,870,984 7.602% | 185,341 (+6.90%) | Filing History |
| 2021-02-04 4:33 pm Sale | 2021-01-26 | 13G | GRITSTONE BIO INC GRTSQ | Frazier Healthcare VII L.P. | 1,092,185 2.900% | -969,573 (-47.03%) | Filing History |
| 2021-02-01 08:38 am Purchase | 2021-01-21 | 13G | GRITSTONE BIO INC GRTSQ | Wellington Management Portfolios (Dublin) Public Ltd Co | 2,460,320 5.880% | 2,460,320 (New Position) | Filing History |
| 2021-01-11 5:06 pm Purchase | 2020-12-30 | 13G | GRITSTONE BIO INC GRTSQ | BIOTECHNOLOGY VALUE FUND L P | 2,695,418 6.500% | 2,695,418 (New Position) | Filing History |