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 676-700 of 1,000 matching filings.

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25

Current page

28

4

FORM 4

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Jul 2021
Reporting date: 01 Jul 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 14 Jun 2021
Reporting date: 11 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 07 Jun 2021
Reporting date: 07 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 07 Jun 2021
Reporting date: 07 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 04 Jun 2021
Reporting date: 04 Jun 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jun 2021
Reporting date: 03 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jun 2021
Reporting date: 02 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Jun 2021
Reporting date: 01 Jun 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

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

4

FORM 4

Filing date: 17 May 2021
Reporting date: 17 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 11 May 2021
Reporting date: 07 May 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 11 May 2021
Reporting date: 10 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-78106

SCHEDULE 13G/A

Filing date: 10 May 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 04 May 2021
Reporting date: 03 May 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-255712

FORM S-8

Filing date: 03 May 2021
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 May 2021
Reporting date: 30 Apr 2021
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

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

8-K File 000-51829

FORM 8-K

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

8-K File 000-51829

FORM 8-K

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

10-Q File 000-51829

FORM 10-Q

Filing date: 28 Apr 2021
Reporting date: 31 Mar 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 28 Apr 2021
Reporting date: 28 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 000-51829

FORM 8-K

Filing date: 28 Apr 2021
Reporting date: 28 Apr 2021
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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