COGENT COMMUNICATIONS HOLDINGS, INC. reports

Company location: Washington, DC
Fiscal year end: 31 December

COGENT COMMUNICATIONS HOLDINGS, INC. has filed 2,541 SEC EDGAR filings since 29 Aug 2001

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SEC filing history

Showing 226-250 of 1,000 matching filings.

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144 File 000-51829

144 filing

Filing date: 04 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 04 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 04 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 04 Mar 2025
Reporting date: 03 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 03 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 03 Mar 2025
Reporting date: 03 Mar 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

144 File 000-51829

144 filing

Filing date: 03 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 000-51829

10-K

Filing date: 28 Feb 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 27 Feb 2025
Reporting date: 27 Feb 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4 filing

Filing date: 22 Jan 2025
Reporting date: 21 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 15 Jan 2025
Reporting date: 14 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 15 Jan 2025
Reporting date: 09 Jan 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4 filing

Filing date: 13 Jan 2025
Reporting date: 09 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 13 Jan 2025
Reporting date: 09 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 13 Jan 2025
Reporting date: 09 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 13 Jan 2025
Reporting date: 09 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 03 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 03 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 03 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 02 Jan 2025
Reporting date: 01 Jan 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4 filing

Filing date: 19 Dec 2024
Reporting date: 18 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

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