COGENT COMMUNICATIONS HOLDINGS, INC. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Washington, DC
SEC filing record 1 source field available
Fiscal year end
31 December
COGENT COMMUNICATIONS HOLDINGS, INC. has filed 2,541 SEC EDGAR filings since 29 Aug 2001

SEC filing history

Showing 76-100 of 1,000 matching filings.

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25
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4
4

4 filing

Filing date
05 Jan 2026
Reporting date
31 Dec 2025
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4

4 filing

Filing date
12 Dec 2025
Reporting date
11 Dec 2025
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144 File 000-51829

144 filing

Filing date
11 Dec 2025
Reporting date
Not listed
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4

4 filing

Filing date
08 Dec 2025
Reporting date
08 Dec 2025
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144 File 000-51829

144 filing

Filing date
03 Dec 2025
Reporting date
Not listed
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4

4 filing

Filing date
03 Dec 2025
Reporting date
01 Dec 2025
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4

4 filing

Filing date
02 Dec 2025
Reporting date
02 Dec 2025
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4

4 filing

Filing date
02 Dec 2025
Reporting date
01 Dec 2025
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4

4 filing

Filing date
02 Dec 2025
Reporting date
01 Dec 2025
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144 File 000-51829

144 filing

Filing date
01 Dec 2025
Reporting date
Not listed
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SCHEDULE 13G/A File 005-78106

SCHEDULE 13G/A filing

Filing date
14 Nov 2025
Reporting date
Not listed
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4

4 filing

Filing date
12 Nov 2025
Reporting date
11 Nov 2025
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144 File 000-51829

144 filing

Filing date
12 Nov 2025
Reporting date
Not listed
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4

4 filing

Filing date
02 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
02 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
01 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
01 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
01 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
01 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
01 Oct 2025
Reporting date
30 Sep 2025
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4

4 filing

Filing date
05 Sep 2025
Reporting date
05 Sep 2025
SEC evidence
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144 File 000-51829

144 filing

Filing date
04 Sep 2025
Reporting date
Not listed
SEC evidence
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