Cogent Communications Holdings, Inc. SEC filings CCOI

Cogent Communications Holdings, Inc. has 1,002 filings in SEC EDGAR's recent list, going back to May 9, 2018. Its latest annual report, Form ARS, was filed on Mar 20, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 6, 2026 (results of operations). The company's fiscal year ends on December 31.

Form Description Filed Period
DEF 14A Proxy statement Mar 20, 2026 May 1, 2026
DEF 14A Proxy statement Mar 26, 2025 May 7, 2025
PRE 14A Preliminary proxy statement Mar 13, 2025 May 7, 2025
DEF 14A Proxy statement Mar 25, 2024 May 8, 2024
DEF 14A Proxy statement Mar 15, 2023 —
DEF 14A Proxy statement Mar 14, 2022 May 4, 2022
PRE 14A Preliminary proxy statement Mar 4, 2022 May 4, 2022
DEFA14A Additional proxy material Apr 15, 2021 —
DEFA14A Additional proxy material Apr 15, 2021 —
DEF 14A Proxy statement Mar 5, 2021 Apr 28, 2021
DEF 14A Proxy statement Mar 12, 2020 May 6, 2020
DEFA14A Additional proxy material Apr 12, 2019 —
DEF 14A Proxy statement Mar 15, 2019 May 1, 2019
DEF 14A Proxy statement Jul 19, 2018 Sep 10, 2018
PRE 14A Preliminary proxy statement Jun 27, 2018 Sep 10, 2018

Showing 15 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Communications Services, NEC (SIC 4899)
Listed as
CCOI (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Washington, DC
SEC filer status
Large accelerated filer
SEC CIK
1158324
Former names
COGENT COMMUNICATIONS GROUP INC (until Jun 26, 2014)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.