Company · CCOI · CIK 1158324

Cogent Communications Holdings, Inc. (CCOI) SEC filings and CIK.

CCOI’s SEC Central Index Key (CIK) is 0001158324, or 1158324 without leading zeros. The SEC’s ticker file lists it as COGENT COMMUNICATIONS HOLDINGS, INC..

Ticker: CCOI
CIK: 0001158324
Other tickers: None
Insider transactions, Q3 2026: 13

Insider trading

In Q3 2026, insiders at Cogent Communications Holdings, Inc. reported 13 non-derivative transactions on 13 Forms 3, 4 and 5, including 0 open-market purchases and 2 sales. See every CCOI insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get CCOI SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1158324&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1158324" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1158324?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Cogent Communications Holdings, Inc. on SEC.gov

Questions

What is CCOI’s CIK number?

CCOI’s SEC Central Index Key (CIK) is 0001158324, or 1158324 without leading zeros. The SEC’s ticker file lists it as COGENT COMMUNICATIONS HOLDINGS, INC..

How do I find Cogent Communications Holdings, Inc.’s 10-K?

Request /api/v1/filings?cik=1158324&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/ccoi.md

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