Summit Materials, Inc. reports

Company location: Denver, CO
Fiscal year end: 31 December

Summit Materials, Inc. has filed 904 SEC EDGAR filings since 08 Oct 2014

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SEC filing history

Showing 326-350 of 904 matching filings.

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25

Current page

14

DEF 14A File 001-36873

DEF 14A

Filing date: 05 Apr 2021
Reporting date: 19 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 30 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

3

OWNERSHIP DOCUMENT

Filing date: 01 Apr 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-36873

FORM 8-K

Filing date: 30 Mar 2021
Reporting date: 29 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 22 Mar 2021
Reporting date: 18 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 22 Mar 2021
Reporting date: 18 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

OWNERSHIP DOCUMENT

Filing date: 22 Mar 2021
Reporting date: 18 Mar 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-36873

FORM 8-K

Filing date: 18 Mar 2021
Reporting date: 17 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-36873

8-K

Filing date: 16 Mar 2021
Reporting date: 16 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

PRE 14A File 001-36873

PRE 14A

Filing date: 09 Mar 2021
Reporting date: 19 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Mar 2021
Reporting date: 28 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Mar 2021
Reporting date: 28 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 02 Mar 2021
Reporting date: 28 Feb 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

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