Latest filings (excl ownership)
10-Q
2024 Q1
Quarterly report
2 May 24
10-K
2023 FY
Annual report
15 Feb 24
8-K/A
Independent Auditors’ Report
12 Feb 24
8-K
Summit Materials Completes Combination with Argos USA
12 Jan 24
8-K
Summit Materials Shareholders Approve Combination with Argos USA
11 Jan 24
8-K
Other Events
28 Dec 23
8-K
Entry into a Material Definitive Agreement
14 Dec 23
8-K
Other Events
1 Dec 23
8-K
Summit Materials Announces intention to offer $800 million of senior notes
27 Nov 23
10-Q
2023 Q3
Quarterly report
2 Nov 23
DEFA14A
Additional proxy soliciting materials
13 Sep 23
8-K
Entry into a Material Definitive Agreement
13 Sep 23
DEFA14A
Additional proxy soliciting materials
8 Sep 23
8-K
Entry into a Material Definitive Agreement
8 Sep 23
DEFA14A
Additional proxy soliciting materials
7 Sep 23
DEFA14A
Additional proxy soliciting materials
7 Sep 23
8-K
Creating a Materials-Led Enterprise with National Scale
7 Sep 23
8-K
Summit Materials Announces Significant Step to Streamline Company Structure
22 Aug 23
10-Q
2023 Q2
Quarterly report
3 Aug 23
8-K
Mine Safety - Reporting of Shutdowns and Patterns of Violations
23 Jun 23
10-Q
2023 Q1
Quarterly report
4 May 23
10-K
2022 FY
Annual report
16 Feb 23
8-K
Entry into a Material Definitive Agreement
10 Jan 23
8-K
Entry into a Material Definitive Agreement
14 Dec 22
8-K
Summit Materials, Inc. Declares Special Stock Dividend
5 Dec 22
10-Q
2022 Q3
Quarterly report
3 Nov 22
10-Q
2022 Q2
Quarterly report
4 Aug 22
UPLOAD
Letter from SEC
22 Jul 22
CORRESP
Correspondence with SEC
12 Jul 22
UPLOAD
Letter from SEC
27 Jun 22
8-K
Other Events
16 May 22
10-Q
2022 Q1
Quarterly report
5 May 22
10-K
2021 FY
Annual report
24 Feb 22
10-Q
2021 Q3
Quarterly report
4 Nov 21
8-K
Termination of a Material Definitive Agreement
27 Sep 21
8-K
Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement
7 Sep 21
10-Q
2021 Q2
Quarterly report
5 Aug 21
10-Q
2021 Q1
Quarterly report
11 May 21
10-K
2020 FY
Annual report
24 Feb 21
10-Q
2020 Q3
Quarterly report
28 Oct 20
Latest ownership filings