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 801-825 of 1,000 matching filings.

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25

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33

4

FORM 4

Filing date: 01 Apr 2020
Reporting date: 01 Apr 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

3

FORM 3

Filing date: 19 Mar 2020
Reporting date: 17 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 18 Mar 2020
Reporting date: 17 Mar 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

DEF 14A File 000-51829

DEF 14A

Filing date: 12 Mar 2020
Reporting date: 06 May 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 12 Mar 2020
Reporting date: 11 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 10 Mar 2020
Reporting date: 10 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 09 Mar 2020
Reporting date: 06 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Mar 2020
Reporting date: 05 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Mar 2020
Reporting date: 06 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Mar 2020
Reporting date: 05 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Mar 2020
Reporting date: 03 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Mar 2020
Reporting date: 03 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Mar 2020
Reporting date: 03 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 Mar 2020
Reporting date: 01 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2020
Reporting date: 03 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2020
Reporting date: 02 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Mar 2020
Reporting date: 02 Mar 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 02 Mar 2020
Reporting date: 28 Feb 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-K File 000-51829

10-K

Filing date: 28 Feb 2020
Reporting date: 31 Dec 2019
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 2020
Reporting date: 27 Feb 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 19 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 18 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 18 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 18 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 18 Feb 2020
Reporting date: 14 Feb 2020
SEC evidence: Open document Open filing
Next action: Verify source filing

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