Cogent Communications Holdings CCOI SEC Filings

NASDAQ CCOI
$7.48 -0.24 (-3.11%)
As of: Oct 21, 2026 · 2:40 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

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
1SCHEDULE 13G/AOthers0002012383-26-003317Oct 5, 2026 11:58 AM
24Insider Transaction0001456823-26-000010Sep 30, 2026 10:29 PM
34Insider Transaction0001790695-26-000016Sep 30, 2026 10:28 PM
44Insider Transaction0001923830-26-000008Sep 30, 2026 10:27 PM
54Insider Transaction0001933694-26-000009Sep 30, 2026 10:26 PM
64Insider Transaction0001395643-26-000018Sep 30, 2026 10:24 PM
74Insider Transaction0001901420-26-000008Sep 30, 2026 10:24 PM
84Insider Transaction0001227882-26-000008Sep 30, 2026 10:22 PM
94Insider Transaction0001599812-26-000008Sep 15, 2026 9:50 PM
104Insider Transaction0001166978-26-000009Sep 3, 2026 1:45 PM
11144Insider Transaction0001950047-26-008992Sep 2, 2026 8:11 PM
12SCHEDULE 13GBeneficial Ownership Report0000093751-26-000438Aug 7, 2026 1:05 PM
1310-QQuarterly & Annual Report0001104659-26-091790Aug 6, 2026 3:21 PM
148-KCurrent Report0001104659-26-091634Aug 6, 2026 11:19 AM
15SCHEDULE 13GBeneficial Ownership Report0002100121-26-000950Jul 31, 2026 3:25 PM
164Insider Transaction0001923830-26-000006Jul 1, 2026 9:17 PM
174Insider Transaction0001227882-26-000006Jul 1, 2026 8:52 PM
184Insider Transaction0001901420-26-000006Jul 1, 2026 3:21 PM
194Insider Transaction0001933694-26-000007Jul 1, 2026 3:21 PM
204Insider Transaction0001395643-26-000016Jun 30, 2026 9:04 PM
214Insider Transaction0001790695-26-000014Jun 30, 2026 9:03 PM
224Insider Transaction0001456823-26-000008Jun 30, 2026 9:03 PM
238-KCurrent Report0001104659-26-078858Jun 29, 2026 8:29 PM
24SCHEDULE 13GBeneficial Ownership Report0001493152-26-029083Jun 17, 2026 8:15 PM
254Insider Transaction0001166978-26-000007Jun 16, 2026 8:25 PM
26144Insider Transaction0001950047-26-006169Jun 16, 2026 8:03 PM
274Insider Transaction0001599812-26-000006Jun 15, 2026 8:24 PM
288-KCurrent Report0001104659-26-074046Jun 15, 2026 8:20 PM
29144Insider Transaction0001949846-26-000363Jun 9, 2026 12:00 PM
304Insider Transaction0001395643-26-000014May 28, 2026 8:01 PM
31144Insider Transaction0001395643-26-000012May 28, 2026 7:59 PM
328-KCurrent Report0001104659-26-066279May 26, 2026 4:15 PM-
33SCHEDULE 13GBeneficial Ownership0001493152-26-025027May 22, 2026 4:15 PM-
344Insider Transaction0001790695-26-000012May 18, 2026 4:12 PM
35144Insider Transaction0001790695-26-000010May 18, 2026 4:10 PM
364Insider Transaction0001166976-26-000011May 4, 2026 8:22 PM
374Insider Transaction0001166976-26-000011May 4, 2026 8:22 PM
384Insider Transaction0001166976-26-000011May 4, 2026 8:22 PM
398-KCurrent Report0001104659-26-054817May 4, 2026 7:35 PM
408-KCurrent Report0001104659-26-054817May 4, 2026 7:35 PM
418-KCurrent Report0001104659-26-054817May 4, 2026 7:35 PM
42S-8Prospectus0001104659-26-054797May 4, 2026 7:10 PM
43S-8Prospectus0001104659-26-054797May 4, 2026 7:10 PM
44S-8Prospectus0001104659-26-054797May 4, 2026 7:10 PM
4510-QQuarterly & Annual Report0001104659-26-054611May 4, 2026 3:52 PM
4610-QQuarterly & Annual Report0001104659-26-054611May 4, 2026 3:52 PM
4710-QQuarterly & Annual Report0001104659-26-054611May 4, 2026 3:52 PM
488-KCurrent Report0001104659-26-054436May 4, 2026 11:05 AM
498-KCurrent Report0001104659-26-054436May 4, 2026 11:05 AM
508-KCurrent Report0001104659-26-054436May 4, 2026 11:05 AM
...

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