Arq, Inc. reports

Company location: Greenwood Village, CO
Fiscal year end: 31 December

Arq, Inc. has filed 791 SEC EDGAR filings since 14 Mar 2011

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SEC filing history

Showing 26-50 of 791 matching filings.

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2

4

FORM 4

Filing date: 16 Mar 2026
Reporting date: 12 Mar 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13G File 005-87576

SCHEDULE 13G filing

Filing date: 12 Mar 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-37822

10-K

Filing date: 10 Mar 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 10 Mar 2026
Reporting date: 09 Mar 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2026
Reporting date: 27 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2026
Reporting date: 27 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2026
Reporting date: 27 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 03 Mar 2026
Reporting date: 27 Feb 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 29 Jan 2026
Reporting date: 28 Jan 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SCHEDULE 13G/A File 005-87576

SCHEDULE 13G/A filing

Filing date: 28 Jan 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 11 Dec 2025
Reporting date: 09 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 13 Nov 2025
Reporting date: 10 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 13 Nov 2025
Reporting date: 11 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 12 Nov 2025
Reporting date: 10 Nov 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 05 Nov 2025
Reporting date: 05 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-37822

10-Q

Filing date: 05 Nov 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 06 Oct 2025
Reporting date: 25 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 19 Sep 2025
Reporting date: 18 Sep 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K/A File 001-37822

8-K/A

Filing date: 14 Aug 2025
Reporting date: 03 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-37822

8-K

Filing date: 11 Aug 2025
Reporting date: 11 Aug 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-37822

10-Q

Filing date: 11 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 06 Aug 2025
Reporting date: 04 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Aug 2025
Reporting date: 04 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Aug 2025
Reporting date: 04 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Aug 2025
Reporting date: 04 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

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