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	2004-11-08	2004-10-26
Major company event	8-K	2004-11-05	2004-11-05
New insider ownership	3	2004-11-05	2004-11-02
Major company event	8-K	2004-10-29	2004-10-26
RW	-	2004-10-15	-
Insider trade	4	2004-10-08	2004-10-06
DEF 14C	-	2004-10-06	2004-10-07
S-1/A	-	2004-10-04	-
PRE 14C	-	2004-09-22	2004-10-02
Major company event	8-K	2004-09-17	2004-09-16
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Insider trade	4	2004-09-10	2004-09-08
Quarterly report	10-Q	2004-08-16	2004-06-30
New insider ownership	3	2004-08-11	2004-08-10
3/A	-	2004-08-05	2004-03-30
Activist ownership stake (update)	SC 13D/A	2004-08-05	-
New insider ownership	3	2004-07-15	2004-07-14
S-1/A	-	2004-07-01	-
DEF 14C	-	2004-06-21	2004-06-21
DEF 14C	-	2004-06-21	2004-06-21
Employee stock plan	S-8	2004-06-11	-
PRE 14C	-	2004-06-04	2004-06-11
PRE 14C	-	2004-05-19	2004-06-03
IPO registration	S-1	2004-05-18	-
Quarterly report	10-Q	2004-05-17	2004-03-31
DEF 14C	-	2004-05-07	2004-05-08
DEF 14C	-	2004-04-29	2004-12-31
Activist ownership stake (update)	SC 13D/A	2004-04-21	-
PRE 14C	-	2004-04-15	2004-04-26
Activist ownership stake	SC 13D	2004-04-14	-
Activist ownership stake (update)	SC 13D/A	2004-04-09	-
Activist ownership stake (update)	SC 13D/A	2004-04-09	-
New insider ownership	3	2004-04-09	2004-03-30
Activist ownership stake (update)	SC 13D/A	2004-04-06	-
Insider trade	4	2004-04-01	2004-03-29
RW	-	2004-04-01	-
Insider trade	4	2004-03-31	2004-03-30
Insider trade	4	2004-03-31	2004-03-29
Insider trade	4	2004-03-31	2004-03-29
Insider trade	4	2004-03-31	2004-03-30
Major company event	8-K	2004-03-31	2004-03-30
Major company event (amended)	8-K/A	2004-03-30	2004-01-08
Annual report	10-K	2004-03-30	2003-12-31
Insider trade	4	2004-02-27	2004-02-27
Insider trade	4	2004-02-19	2004-02-12