Every SEC filing Cogent Communications Holdings, Inc. (CCOI) has made, as reported
on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership
disclosures. Filter by form group, form type or period, and open any filing or its index directly.
Form Type
#
Form Type
Form Group
Accession
Date
Filing
Index
1
SCHEDULE 13G/A
Others
0002012383-26-003317
Oct 5, 2026 11:58 AM
2
4
Insider Transaction
0001456823-26-000010
Sep 30, 2026 10:29 PM
3
4
Insider Transaction
0001790695-26-000016
Sep 30, 2026 10:28 PM
4
4
Insider Transaction
0001923830-26-000008
Sep 30, 2026 10:27 PM
5
4
Insider Transaction
0001933694-26-000009
Sep 30, 2026 10:26 PM
6
4
Insider Transaction
0001395643-26-000018
Sep 30, 2026 10:24 PM
7
4
Insider Transaction
0001901420-26-000008
Sep 30, 2026 10:24 PM
8
4
Insider Transaction
0001227882-26-000008
Sep 30, 2026 10:22 PM
9
4
Insider Transaction
0001599812-26-000008
Sep 15, 2026 9:50 PM
10
4
Insider Transaction
0001166978-26-000009
Sep 3, 2026 1:45 PM
11
144
Insider Transaction
0001950047-26-008992
Sep 2, 2026 8:11 PM
12
SCHEDULE 13G
Beneficial Ownership Report
0000093751-26-000438
Aug 7, 2026 1:05 PM
13
10-Q
Quarterly & Annual Report
0001104659-26-091790
Aug 6, 2026 3:21 PM
14
8-K
Current Report
0001104659-26-091634
Aug 6, 2026 11:19 AM
15
SCHEDULE 13G
Beneficial Ownership Report
0002100121-26-000950
Jul 31, 2026 3:25 PM
16
4
Insider Transaction
0001923830-26-000006
Jul 1, 2026 9:17 PM
17
4
Insider Transaction
0001227882-26-000006
Jul 1, 2026 8:52 PM
18
4
Insider Transaction
0001901420-26-000006
Jul 1, 2026 3:21 PM
19
4
Insider Transaction
0001933694-26-000007
Jul 1, 2026 3:21 PM
20
4
Insider Transaction
0001395643-26-000016
Jun 30, 2026 9:04 PM
21
4
Insider Transaction
0001790695-26-000014
Jun 30, 2026 9:03 PM
22
4
Insider Transaction
0001456823-26-000008
Jun 30, 2026 9:03 PM
23
8-K
Current Report
0001104659-26-078858
Jun 29, 2026 8:29 PM
24
SCHEDULE 13G
Beneficial Ownership Report
0001493152-26-029083
Jun 17, 2026 8:15 PM
25
4
Insider Transaction
0001166978-26-000007
Jun 16, 2026 8:25 PM
26
144
Insider Transaction
0001950047-26-006169
Jun 16, 2026 8:03 PM
27
4
Insider Transaction
0001599812-26-000006
Jun 15, 2026 8:24 PM
28
8-K
Current Report
0001104659-26-074046
Jun 15, 2026 8:20 PM
29
144
Insider Transaction
0001949846-26-000363
Jun 9, 2026 12:00 PM
30
4
Insider Transaction
0001395643-26-000014
May 28, 2026 8:01 PM
31
144
Insider Transaction
0001395643-26-000012
May 28, 2026 7:59 PM
32
8-K
Current Report
0001104659-26-066279
May 26, 2026 4:15 PM
-
33
SCHEDULE 13G
Beneficial Ownership
0001493152-26-025027
May 22, 2026 4:15 PM
-
34
4
Insider Transaction
0001790695-26-000012
May 18, 2026 4:12 PM
35
144
Insider Transaction
0001790695-26-000010
May 18, 2026 4:10 PM
36
4
Insider Transaction
0001166976-26-000011
May 4, 2026 8:22 PM
37
4
Insider Transaction
0001166976-26-000011
May 4, 2026 8:22 PM
38
4
Insider Transaction
0001166976-26-000011
May 4, 2026 8:22 PM
39
8-K
Current Report
0001104659-26-054817
May 4, 2026 7:35 PM
40
8-K
Current Report
0001104659-26-054817
May 4, 2026 7:35 PM
41
8-K
Current Report
0001104659-26-054817
May 4, 2026 7:35 PM
42
S-8
Prospectus
0001104659-26-054797
May 4, 2026 7:10 PM
43
S-8
Prospectus
0001104659-26-054797
May 4, 2026 7:10 PM
44
S-8
Prospectus
0001104659-26-054797
May 4, 2026 7:10 PM
45
10-Q
Quarterly & Annual Report
0001104659-26-054611
May 4, 2026 3:52 PM
46
10-Q
Quarterly & Annual Report
0001104659-26-054611
May 4, 2026 3:52 PM
47
10-Q
Quarterly & Annual Report
0001104659-26-054611
May 4, 2026 3:52 PM
48
8-K
Current Report
0001104659-26-054436
May 4, 2026 11:05 AM
49
8-K
Current Report
0001104659-26-054436
May 4, 2026 11:05 AM
50
8-K
Current Report
0001104659-26-054436
May 4, 2026 11:05 AM
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Cogent Communications Holdings, Inc. SEC Filings API
Pull Cogent Communications Holdings, Inc.'s SEC filing index, with links to every filing and exhibit, into your own tools with the Business Quant SEC Filings API. Swap YOUR_API_KEY for your own key.
const res = await fetch("https://data.businessquant.com/secfilings?ticker=CCOI&formtype=10-K,10-Q&api_key=YOUR_API_KEY");
const data = await res.json();