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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Reported
DateTime		TypeCompany
Symbol		Filed By
Symbol		Shares Owned
% Owned		Shares Vs. Prev ReportFiling
2023-04-10
1:39 pm
Purchase		13GSummit Materials, Inc.
SUM		VANGUARD GROUP INC11,872,134
10.03%		169,117increase
(+1.45%)		View
2023-02-14
12:38 pm
Purchase		13GSummit Materials, Inc.
SUM		PRICE T ROWE ASSOCIATES INC9,028,677
7.6%		141,735increase
(+1.59%)		View
2023-02-13
3:54 pm
Purchase		13GSummit Materials, Inc.
SUM		Capital International Investors7,422,146
6.3%		1,037,557increase
(+16.25%)		View
2023-02-10
2:42 pm
Purchase		13GSummit Materials, Inc.
SUM		DIMENSIONAL FUND ADVISORS LP5,998,959
5.1%		398,024increase
(+7.11%)		View
2023-02-09
12:31 pm
Sale		13GSummit Materials, Inc.
SUM		FMR LLC4,621,051
3.904%		-39,126,439decrease
(-89.44%)		View
2023-02-09
11:32 am
Sale		13GSummit Materials, Inc.
SUM		VANGUARD GROUP INC11,703,017
9.89%		-14,859,240decrease
(-55.94%)		View
2023-02-03
4:27 pm
Sale		13GSummit Materials, Inc.
SUM		BlackRock Inc.
BLK		9,173,017
7.9%		-15,902,746decrease
(-63.42%)		View
2022-02-14
2:34 pm
Purchase		13GSummit Materials, Inc.
SUM		PRICE T ROWE ASSOCIATES INC8,886,942
7.4%		856,830increase
(+10.67%)		View
2022-02-11
11:19 am
Purchase		13GSummit Materials, Inc.
SUM		Capital International Investors6,384,589
5.4%		6,384,589increase
(New Position)		View
2022-02-10
08:37 am
Sale		13GSummit Materials, Inc.
SUM		VANGUARD GROUP INC11,145,582
9.4%		-15,074,058decrease
(-57.49%)		View
2022-02-09
10:01 am
Sale		13GSummit Materials, Inc.
SUM		FMR LLC7,951,538
6.706%		-23,808,060decrease
(-74.96%)		View
2022-02-08
3:52 pm
Sale		13GSummit Materials, Inc.
SUM		DIMENSIONAL FUND ADVISORS LP5,600,935
4.7%		-437,198decrease
(-7.24%)		View
2022-02-03
4:41 pm
Sale		13GSummit Materials, Inc.
SUM		BlackRock Inc.
BLK		8,974,433
7.6%		-13,950,772decrease
(-60.85%)		View
2021-02-16
12:23 pm
Purchase		13GSummit Materials, Inc.
SUM		PRICE T ROWE ASSOCIATES INC8,030,112
7%		8,030,112increase
(New Position)		View
2021-02-12
3:41 pm
Purchase		13GSummit Materials, Inc.
SUM		DIMENSIONAL FUND ADVISORS LP6,038,133
5.3%		6,038,133increase
(New Position)		View
2021-02-11
3:02 pm
Sale		13GSummit Materials, 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 Materials, Inc.
SUM		VANGUARD GROUP INC10,114,569
8.86%		-12,358,228decrease
(-54.99%)		View
2021-02-08
10:33 am
Sale		13GSummit Materials, Inc.
SUM		FMR LLC9,054,697
7.934%		-3,647,969decrease
(-28.72%)		View
2021-02-01
08:23 am
Purchase		13GSummit Materials, Inc.
SUM		BlackRock Inc.
BLK		9,356,687
8.2%		567,567increase
(+6.46%)		View
2020-06-10
10:13 am
Purchase		13GSummit Materials, Inc.
SUM		FMR LLC12,702,666
11.131%		5,489,951increase
(+76.11%)		View
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