13D/13G Filings - Gritstone bio Inc. (GRTS)

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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Time period
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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%
1,384,300increase
(+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%
-2,695,418decrease
(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%
2,443,380increase
(+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%
3,673,779increase
(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 CORP 2,068,151
3.041%
-802,833decrease
(-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%
1,825,927increase
(+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%
-2,460,320decrease
(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%
814,187increase
(+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%
4,728,551increase
(New Position)
Filing
History
2021-04-12
08:02 am
Sale
2021-03-31 13G GRITSTONE BIO INC
GRTSQ
WELLINGTON MANAGEMENT CO LLP 1,014,555
2.070%
-3,312,237decrease
(-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%
1,799,135increase
(+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%
-3,102,934decrease
(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%
-2,160,000decrease
(Position Closed)
Filing
History
2021-02-10
08:21 am
Purchase
2021-01-29 13G GRITSTONE BIO INC
GRTSQ
WELLINGTON MANAGEMENT CO LLP 4,326,792
10.350%
4,326,792increase
(New Position)
Filing
History
2021-02-08
10:23 am
Purchase
2021-02-05 13G GRITSTONE BIO INC
GRTSQ
FMR CORP 2,870,984
7.602%
185,341increase
(+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%
-969,573decrease
(-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%
2,460,320increase
(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%
2,695,418increase
(New Position)
Filing
History
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