Activist 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 are not 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
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportFiling
2022-02-09
09:19 am
Sale
13GGRITSTONE BIO INC
GRTS
FMR LLC2,068,151
3.041%
-802,833decrease
(-27.96%)
View
2022-02-04
4:12 pm
Purchase
13GGRITSTONE BIO INC
GRTS
BlackRock Inc.
BLK
3,791,433
5.6%
1,825,927increase
(+92.90%)
View
2022-02-04
07:59 am
Sale
13GGRITSTONE BIO INC
GRTS
Wellington Management Portfolios (Dublin) Public Ltd Co0
0%
-2,460,320decrease
(Position Closed)
View
2021-09-27
4:01 pm
Purchase
13GGRITSTONE BIO INC
GRTS
Redmile Group LLC5,729,916
9.9%
814,187increase
(+16.56%)
View
2021-09-21
3:36 pm
Purchase
13GGRITSTONE BIO INC
GRTS
Frazier Life Sciences Public Fund L.P.4,728,551
8.7%
4,728,551increase
(New Position)
View
2021-04-12
08:02 am
Sale
13GGRITSTONE BIO INC
GRTS
WELLINGTON MANAGEMENT GROUP LLP1,014,555
2.07%
-3,312,237decrease
(-76.55%)
View
2021-02-16
4:10 pm
Purchase
13GGRITSTONE BIO INC
GRTS
Redmile Group LLC4,915,729
9.9%
1,799,135increase
(+57.73%)
View
2021-02-16
07:30 am
Unchanged
13GGRITSTONE BIO INC
GRTS
Versant Venture Capital V L.P.2,895,695
6.1%
0
(Unchanged)
View
2021-02-12
6:12 pm
Sale
13GGRITSTONE BIO INC
GRTS
COLUMN GROUP II LP0
0%
-3,102,934decrease
(Position Closed)
View
2021-02-11
10:28 am
Sale
13GGRITSTONE BIO INC
GRTS
Casdin Capital LLC0
0%
-2,160,000decrease
(Position Closed)
View
2021-02-10
08:21 am
Purchase
13GGRITSTONE BIO INC
GRTS
WELLINGTON MANAGEMENT GROUP LLP4,326,792
10.35%
4,326,792increase
(New Position)
View
2021-02-08
10:23 am
Purchase
13GGRITSTONE BIO INC
GRTS
FMR LLC2,870,984
7.602%
185,341increase
(+6.90%)
View
2021-02-04
4:33 pm
Sale
13GGRITSTONE BIO INC
GRTS
Frazier Healthcare VII L.P.1,092,185
2.9%
-969,573decrease
(-47.03%)
View
2021-02-01
08:38 am
Purchase
13GGRITSTONE BIO INC
GRTS
Wellington Management Portfolios (Dublin) Public Ltd Co2,460,320
5.88%
2,460,320increase
(New Position)
View
2021-01-11
5:06 pm
Purchase
13GGRITSTONE BIO INC
GRTS
BIOTECHNOLOGY VALUE FUND L P2,695,418
6.5%
2,695,418increase
(New Position)
View
2021-01-08
4:37 pm
Sale
13GGRITSTONE BIO INC
GRTS
BlackRock Inc.
BLK
1,965,506
4.7%
-37,175decrease
(-1.86%)
View
2021-01-04
4:30 pm
Purchase
13GGRITSTONE BIO INC
GRTS
EcoR1 Capital LLC4,934,932
9.99%
4,934,932increase
(New Position)
View
2020-12-28
4:48 pm
Purchase
13GGRITSTONE BIO INC
GRTS
Avidity Partners Management LP4,546,814
9.9%
4,546,814increase
(New Position)
View
2020-08-10
09:25 am
Sale
13GGRITSTONE BIO INC
GRTS
FMR LLC2,685,643
7.206%
-2,685,280decrease
(-50.00%)
View
2020-02-14
4:25 pm
Purchase
13GGRITSTONE BIO INC
GRTS
Redmile Group LLC3,116,594
8.7%
847,459increase
(+37.35%)
View
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