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
2024-11-08
5:31 pm
Unchanged
13GSUMMIT MATLS INC
SUM
BlackRock Inc.10,049,019
5.700%
0
(Unchanged)
View
2024-11-04
1:50 pm
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC12,316,399
7.010%
338,032increase
(+2.82%)
View
2024-10-24
2:02 pm
Purchase
13GSUMMIT MATLS INC
SUM
BlackRock Inc.10,049,019
5.700%
10,049,019increase
(New Position)
View
2024-02-14
10:03 am
Sale
13GSUMMIT MATLS INC
SUM
PRICE T ROWE ASSOCIATES INC8,814,270
7.400%
-214,407decrease
(-2.37%)
View
2024-02-13
5:15 pm
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC11,978,367
10.020%
106,233increase
(+0.89%)
View
2024-02-09
6:05 pm
Sale
13GSUMMIT MATLS INC
SUM
Capital International Investors492,061
0.400%
-6,930,085decrease
(-93.37%)
View
2024-02-09
11:49 am
Purchase
13GSUMMIT MATLS INC
SUM
MASSACHUSETTS FINANCIAL SERVICES CO6,650,459
5.600%
6,650,459increase
(New Position)
View
2024-02-09
09:59 am
Sale
13GSUMMIT MATLS INC
SUM
DIMENSIONAL FUND ADVISORS LP5,458,887
4.600%
-540,072decrease
(-9.00%)
View
2024-01-24
5:23 pm
Purchase
13GSUMMIT MATLS INC
SUM
BlackRock Inc.
BLK
11,365,151
9.500%
2,192,134increase
(+23.90%)
View
2024-01-22
5:19 pm
Purchase
13DSUMMIT MATLS INC
SUM
Argos SEM LLC54,720,000
31.400%
54,720,000increase
(New Position)
View
2023-04-10
1:39 pm
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC11,872,134
10.030%
169,117increase
(+1.45%)
View
2023-02-14
12:38 pm
Purchase
13GSUMMIT MATLS INC
SUM
PRICE T ROWE ASSOCIATES INC9,028,677
7.600%
141,735increase
(+1.59%)
View
2023-02-13
3:54 pm
Purchase
13GSUMMIT MATLS INC
SUM
Capital International Investors7,422,146
6.300%
1,037,557increase
(+16.25%)
View
2023-02-10
2:42 pm
Purchase
13GSUMMIT MATLS INC
SUM
DIMENSIONAL FUND ADVISORS LP5,998,959
5.100%
398,024increase
(+7.11%)
View
2023-02-09
12:31 pm
Sale
13GSUMMIT MATLS INC
SUM
FMR LLC4,621,051
3.904%
-3,330,487decrease
(-41.88%)
View
2023-02-09
11:32 am
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC11,703,017
9.890%
557,435increase
(+5.00%)
View
2023-02-03
4:27 pm
Purchase
13GSUMMIT MATLS INC
SUM
BlackRock Inc.
BLK
9,173,017
7.900%
198,584increase
(+2.21%)
View
2022-02-14
2:34 pm
Purchase
13GSUMMIT MATLS INC
SUM
PRICE T ROWE ASSOCIATES INC8,886,942
7.400%
856,830increase
(+10.67%)
View
2022-02-11
11:19 am
Purchase
13GSUMMIT MATLS INC
SUM
Capital International Investors6,384,589
5.400%
6,384,589increase
(New Position)
View
2022-02-10
08:37 am
Purchase
13GSUMMIT MATLS INC
SUM
VANGUARD GROUP INC11,145,582
9.400%
1,031,013increase
(+10.19%)
View
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