COGENT COMMUNICATIONS HOLDINGS, INC.

CCOI - CIK 0001158324

Market cap$794.23 M

Rank#2665

SEC filings2,511

COGENT COMMUNICATIONS HOLDINGS, INC. has filed 2,511 documents with the SEC 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.

Filing	Type	Filed	Period covered
Insider trade	4	2004-01-21	2004-01-05
Insider trade	4	2004-01-21	2004-01-05
Insider trade	4	2004-01-21	2004-01-05
Insider trade	4	2004-01-21	2004-01-05
Major company event	8-K	2004-01-08	2004-01-07
Quarterly report	10-Q	2003-11-14	2003-09-30
New insider ownership	3	2003-10-31	2003-10-21
Insider trade (amended)	4/A	2003-10-31	2003-10-10
New insider ownership	3	2003-10-30	2003-10-21
IPO registration	S-1	2003-10-23	-
SC TO-I/A	-	2003-10-17	-
SC TO-T/A	-	2003-10-14	-
Insider trade	4	2003-10-14	2003-10-10
Insider trade	4	2003-10-14	2003-10-10
Insider trade	4	2003-10-14	2003-10-10
Insider trade	4	2003-10-10	2003-10-10
Insider trade	4	2003-10-10	2003-10-10
Insider trade	4	2003-10-10	2003-10-10
Insider trade	4	2003-10-10	2003-10-10
Insider trade	4	2003-10-10	2003-10-10
SC TO-I/A	-	2003-10-02	-
SC TO-I	-	2003-09-11	-
Employee stock plan	S-8	2003-09-11	-
Insider trade	4	2003-08-28	2003-08-28
SC TO-T	-	2003-08-15	-
Quarterly report	10-Q	2003-08-14	2003-06-30
Insider trade	4	2003-08-13	2003-07-31
Activist ownership stake	SC 13D	2003-08-11	-
Activist ownership stake	SC 13D	2003-08-11	-
Activist ownership stake	SC 13D	2003-08-11	-
Activist ownership stake	SC 13D	2003-08-08	-
Major company event	8-K	2003-08-07	2003-07-31
Insider trade	4	2003-08-05	2003-07-31
Insider trade	4	2003-08-05	2003-07-31
Insider trade	4	2003-08-05	2003-07-31
Insider trade	4	2003-08-05	2003-08-05
Insider trade	4	2003-08-04	2003-07-31
Insider trade	4	2003-08-04	2003-07-31
Insider trade	4	2003-08-04	2003-07-31
Insider trade	4	2003-08-04	2003-07-31
Insider trade	4	2003-08-01	2003-07-31
SC 14D9/A	-	2003-07-24	-
SC 14D9	-	2003-07-21	-
DEF 14C	-	2003-07-11	2003-07-11
PRER14C	-	2003-07-09	-
Major company event	8-K	2003-06-23	2003-06-19
PRE 14C	-	2003-06-20	2003-06-20
Quarterly report (amended)	10-Q/A	2003-05-15	2003-03-31
Quarterly report	10-Q	2003-05-15	2003-03-31
DEF 14C	-	2003-04-24	2003-06-12