Activist 13D/13G Filings - Summit Materials Inc. (SUM)

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
2021-02-16
12:23 pm
Purchase
13GSUMMIT MATLS INC
SUM
PRICE T ROWE ASSOCIATES INC8,030,112
7%
8,030,112increase
(New Position)
View
2021-02-12
3:41 pm
Purchase
13GSUMMIT MATLS INC
SUM
DIMENSIONAL FUND ADVISORS LP6,038,133
5.3%
6,038,133increase
(New Position)
View
2021-02-11
3:02 pm
Sale
13GSUMMIT MATLS INC
SUM
JANUS HENDERSON GROUP PLC
JHG
5,350,782
4.7%
-2,728,455decrease
(-33.77%)
View
2021-02-10
11:57 am
Sale
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC10,114,569
8.86%
-172,449decrease
(-1.68%)
View
2021-02-08
10:33 am
Sale
13GSUMMIT MATLS INC
SUM
FMR LLC9,054,697
7.934%
-3,647,969decrease
(-28.72%)
View
2021-02-01
08:23 am
Purchase
13GSUMMIT MATLS INC
SUM
BlackRock Inc.
BLK
9,356,687
8.2%
567,567increase
(+6.46%)
View
2020-06-10
10:13 am
Purchase
13GSUMMIT MATLS INC
SUM
FMR LLC12,702,666
11.131%
5,489,951increase
(+76.11%)
View
2020-02-13
5:29 pm
Sale
13GSUMMIT MATLS INC
SUM
JANUS HENDERSON GROUP PLC
JHG
8,079,237
7.2%
-3,454,403decrease
(-29.95%)
View
2020-02-12
4:58 pm
Sale
13GSUMMIT MATLS INC
SUM
ADAGE CAPITAL PARTNERS GP L.L.C.3,462,584
3.06%
-4,162,878decrease
(-54.59%)
View
2020-02-12
08:02 am
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC10,287,018
9.16%
78,871increase
(+0.77%)
View
2020-02-07
11:37 am
Sale
13GSUMMIT MATLS INC
SUM
JENNISON ASSOCIATES LLC4,330,012
3.9%
-3,114,083decrease
(-41.83%)
View
2020-02-07
11:30 am
Purchase
13GSUMMIT MATLS INC
SUM
FMR LLC7,212,715
6.424%
4,527,925increase
(+168.65%)
View
2020-02-06
1:20 pm
Sale
13GSUMMIT MATLS INC
SUM
PRUDENTIAL FINANCIAL INC
PRU
4,572,655
4.1%
-2,883,971decrease
(-38.68%)
View
2020-02-06
09:10 am
Purchase
13GSUMMIT MATLS INC
SUM
BlackRock Inc.
BLK
8,789,120
7.8%
990,211increase
(+12.70%)
View
2019-12-10
4:00 pm
Sale
13GSUMMIT MATLS INC
SUM
SOUTHEASTERN ASSET MANAGEMENT INC5,117,610
4.6%
-7,702,859decrease
(-60.08%)
View
2019-10-11
4:13 pm
Unchanged
13GSUMMIT MATLS INC
SUM
SOUTHEASTERN ASSET MANAGEMENT INC12,820,469
11.4%
0
(Unchanged)
View
2019-08-09
2:17 pm
Purchase
13GSUMMIT MATLS INC
SUM
JANUS HENDERSON GROUP PLC
JHG
11,533,640
10.3%
3,215,751increase
(+38.66%)
View
2019-06-17
08:33 am
Unchanged
13DSUMMIT MATLS INC
SUM
SOUTHEASTERN ASSET MANAGEMENT INC12,820,469
11.4%
0
(Unchanged)
View
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