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 901-925 of 1,000 matching filings.

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25

Current page

37

8-K File 000-51829

8-K

Filing date: 02 May 2019
Reporting date: 02 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 000-51829

8-K

Filing date: 01 May 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-231145

S-8

Filing date: 01 May 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 000-51829

DEFA14A

Filing date: 12 Apr 2019
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 05 Apr 2019
Reporting date: 04 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Apr 2019
Reporting date: 01 Apr 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 21 Mar 2019
Reporting date: 20 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Mar 2019
Reporting date: 15 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 000-51829

DEF 14A

Filing date: 15 Mar 2019
Reporting date: 01 May 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 13 Mar 2019
Reporting date: 13 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 13 Mar 2019
Reporting date: 12 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 12 Mar 2019
Reporting date: 12 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 12 Mar 2019
Reporting date: 12 Mar 2019
SEC evidence: Open document Open filing
Next action: Verify source filing

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