CCOI - Company ID 0001158324
COGENT COMMUNICATIONS HOLDINGS, INC. has filed 2,511 public company documents between 2001 and 2026. The most frequent type is insider trade (1,647 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Type | Filing | Filed | Period covered | Open |
|---|---|---|---|---|
| S-8 | Employee stock plan | 2mo ago2026-05-04 | - | View filing |
| S-8 | Employee stock plan | 1y ago2025-05-08 | - | View filing |
| S-8 | Employee stock plan | 3y ago2023-05-12 | - | View filing |
| S-8 | Employee stock plan | 5y ago2021-05-03 | - | View filing |
| S-8 | Employee stock plan | 7y ago2019-05-01 | - | View filing |
| S-8 | Employee stock plan | 9y ago2017-05-03 | - | View filing |
| S-8 | Employee stock plan | 12y ago2014-06-05 | - | View filing |
| S-8 | Employee stock plan | 14y ago2012-05-07 | - | View filing |
| S-8 | Employee stock plan | 16y ago2010-05-07 | - | View filing |
| S-8 | Employee stock plan | 19y ago2007-05-09 | - | View filing |
| S-8 | Employee stock plan | 20y ago2005-07-18 | - | View filing |
| S-8 | Employee stock plan | 22y ago2004-06-11 | - | View filing |
| S-8 | Employee stock plan | 22y ago2003-09-11 | - | View filing |