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COGENT COMMUNICATIONS HOLDINGS, INC.

SC 13G 31 filings

All SC 13G Filings

Complete history of SC 13G filings with the SEC

Date Filed	View on EDGAR
03 Feb Feb 03, 2023	open_in_new View Filing
14 Feb Feb 14, 2018	open_in_new View Filing
13 Feb Feb 13, 2015	open_in_new View Filing
12 Feb Feb 12, 2014	open_in_new View Filing
06 Feb Feb 06, 2014	open_in_new View Filing
05 Feb Feb 05, 2014	open_in_new View Filing
14 Feb Feb 14, 2013	open_in_new View Filing
07 Feb Feb 07, 2012	open_in_new View Filing
14 Feb Feb 14, 2011	open_in_new View Filing
03 Feb Feb 03, 2011	open_in_new View Filing
29 Jan Jan 29, 2010	open_in_new View Filing
17 Feb Feb 17, 2009	open_in_new View Filing
26 Jan Jan 26, 2009	open_in_new View Filing
22 Jan Jan 22, 2009	open_in_new View Filing
10 Nov Nov 10, 2008	open_in_new View Filing
27 May May 27, 2008	open_in_new View Filing
19 Feb Feb 19, 2008	open_in_new View Filing
14 Feb Feb 14, 2008	open_in_new View Filing
13 Feb Feb 13, 2008	open_in_new View Filing
22 Jan Jan 22, 2008	open_in_new View Filing
10 Dec Dec 10, 2007	open_in_new View Filing
17 Aug Aug 17, 2007	open_in_new View Filing
09 Aug Aug 09, 2007	open_in_new View Filing
01 Feb Feb 01, 2007	open_in_new View Filing
11 Dec Dec 11, 2006	open_in_new View Filing
23 Jun Jun 23, 2006	open_in_new View Filing
14 Feb Feb 14, 2006	open_in_new View Filing
27 Jun Jun 27, 2005	open_in_new View Filing
08 Nov Nov 08, 2004	open_in_new View Filing
14 Feb Feb 14, 2003	open_in_new View Filing
19 Feb Feb 19, 2002	open_in_new View Filing