Cogent Communications Holdings, Inc. reports

Location
2450 N Street, Nw, Washington, DC
State of incorporation
DE
Fiscal year end
December 31
Data updated at
11/7/2024, 12:16 PM
Form type Sec Links Description Filing date Reporting date
10-Q Report | Data 10-Q Nov 7, 2024 Sep 30, 2024
8-K Report | Data FORM 8-K Nov 7, 2024 Nov 7, 2024
SC 13G/A Report Oct 23, 2024
10-Q Report | Data 10-Q Aug 8, 2024 Jun 30, 2024
8-K Report | Data FORM 8-K Aug 8, 2024 Aug 8, 2024
8-K Report | Data FORM 8-K Jun 11, 2024 Jun 11, 2024
8-K Report | Data FORM 8-K Jun 6, 2024 Jun 6, 2024
8-K Report | Data FORM 8-K Jun 5, 2024 Jun 5, 2024
10-Q Report | Data 10-Q May 9, 2024 Mar 31, 2024
8-K Report | Data FORM 8-K May 9, 2024 May 9, 2024
8-K Report | Data FORM 8-K May 8, 2024 May 8, 2024
8-K Report | Data FORM 8-K May 6, 2024 May 2, 2024
8-K Report | Data FORM 8-K Apr 25, 2024 Apr 25, 2024
8-K Report | Data FORM 8-K Apr 19, 2024 Apr 19, 2024
10-K Report | Data 10-K Feb 29, 2024 Dec 31, 2023
8-K Report | Data FORM 8-K Feb 29, 2024 Feb 29, 2024
SC 13G/A Report SCHEDULE 13G/A Feb 13, 2024
SC 13G/A Report AMENDMENT NO. 1 TO SCHEDULE 13G Jan 26, 2024
SC 13G/A Report Jan 22, 2024
8-K Report | Data FORM 8-K Jan 5, 2024 Jan 3, 2024
10-Q Report | Data 10-Q Nov 9, 2023 Sep 30, 2023
8-K Report | Data FORM 8-K Nov 9, 2023 Nov 9, 2023
8-K Report | Data FORM 8-K Aug 29, 2023 Aug 28, 2023
8-K/A Report | Data FORM 8-K/A Aug 10, 2023 Aug 10, 2023
8-K Report | Data FORM 8-K Aug 10, 2023 Aug 10, 2023
10-Q Report | Data 10-Q Aug 9, 2023 Jun 30, 2023
8-K Report | Data FORM 8-K Jul 27, 2023 Jul 25, 2023
8-K/A Report | Data FORM 8-K/A Jul 17, 2023 May 1, 2023
10-Q Report | Data FORM-10-Q May 5, 2023 Mar 31, 2023
8-K Report | Data FORM 8-K May 4, 2023 May 3, 2023
8-K Report | Data FORM 8-K May 4, 2023 May 4, 2023
8-K Report | Data FORM 8-K May 1, 2023 May 1, 2023
10-K Report | Data FORM 10K Feb 24, 2023 Dec 31, 2022
8-K Report | Data FORM 8-K Feb 23, 2023 Feb 23, 2023
SC 13G/A Report SCHEDULE 13G/A Feb 9, 2023
SC 13G Report SCHEDULE 13G Feb 3, 2023
SC 13G/A Report Jan 30, 2023
8-K Report | Data FORM 8-K Jan 11, 2023 Jan 6, 2023
8-K Report | Data FORM 8-K Jan 6, 2023 Jan 3, 2023
10-Q Report | Data FORM 10-Q Nov 4, 2022 Sep 30, 2022
8-K Report | Data FORM 8-K Nov 3, 2022 Nov 3, 2022
8-K Report | Data FORM 8-K Sep 7, 2022 Sep 6, 2022
8-K/A Report | Data FORM 8-K/A Aug 8, 2022 Jun 24, 2022
10-Q Report | Data FORM 10-Q Aug 5, 2022 Jun 30, 2022
8-K Report | Data FORM 8-K Aug 4, 2022 Aug 4, 2022
8-K Report | Data FORM 8-K Jun 27, 2022 Jun 27, 2022
8-K Report | Data FORM 8-K Jun 22, 2022 Jun 22, 2022
8-K Report | Data FORM 8-K Jun 7, 2022 Jun 7, 2022
8-K Report | Data FORM 8-K Jun 6, 2022 Jun 6, 2022
8-K Report | Data FORM 8-K May 5, 2022 May 4, 2022
10-Q Report | Data FORM 10-Q May 5, 2022 Mar 31, 2022
8-K Report | Data FORM 8-K May 4, 2022 May 4, 2022
8-K Report | Data FORM 8-K Apr 29, 2022 Apr 29, 2022
8-K Report | Data FORM 8-K Apr 29, 2022 Apr 29, 2022
10-K Report | Data FORM 10-K Feb 25, 2022 Dec 31, 2021
8-K Report | Data FORM 8-K Feb 24, 2022 Feb 24, 2022
SC 13G/A Report Feb 10, 2022
SC 13G/A Report SCHEDULE 13G/A Feb 9, 2022
SC 13G/A Report Jan 27, 2022
SC 13G/A Report Jan 25, 2022
8-K Report | Data FORM 8-K Jan 5, 2022 Jan 3, 2022
8-K Report | Data FORM 8-K Dec 30, 2021 Dec 23, 2021
10-Q Report | Data 10-Q Nov 4, 2021 Sep 30, 2021
8-K Report | Data FORM 8-K Nov 4, 2021 Nov 4, 2021
10-Q Report | Data FORM 10-Q Aug 5, 2021 Jun 30, 2021
8-K Report | Data FORM 8-K Aug 5, 2021 Aug 5, 2021
8-K Report | Data FORM 8-K Jun 4, 2021 Jun 4, 2021
8-K Report | Data FORM 8-K May 11, 2021 May 7, 2021
SC 13G/A Report SCHEDULE 13G/A May 10, 2021
8-K Report | Data FORM 8-K Apr 30, 2021 Apr 30, 2021
8-K Report | Data FORM 8-K Apr 29, 2021 Apr 29, 2021
8-K Report | Data FORM 8-K Apr 29, 2021 Apr 29, 2021
10-Q Report | Data FORM 10-Q Apr 28, 2021 Mar 31, 2021
8-K Report | Data FORM 8-K Apr 28, 2021 Apr 28, 2021
8-K Report | Data FORM 8-K Apr 28, 2021 Apr 28, 2021
8-K Report | Data FORM 8-K Apr 6, 2021 Apr 6, 2021
8-K Report | Data FORM 8-K Mar 26, 2021 Mar 23, 2021
8-K/A Report | Data FORM 8-K/A Mar 16, 2021 Feb 25, 2021
8-K Report | Data FORM 8-K Feb 26, 2021 Feb 24, 2021
10-K Report | Data 10-K Feb 26, 2021 Dec 31, 2020
8-K Report | Data FORM 8-K Feb 25, 2021 Feb 25, 2021
SC 13G/A Report Feb 11, 2021
SC 13G/A Report SCHEDULE 13G/A Feb 10, 2021
SC 13G/A Report Jan 26, 2021
10-Q Report | Data 10-Q Nov 5, 2020 Sep 30, 2020
8-K Report | Data FORM 8-K Nov 5, 2020 Nov 5, 2020
10-Q Report | Data 10-Q Aug 6, 2020 Jun 30, 2020
8-K Report | Data FORM 8-K Aug 6, 2020 Aug 6, 2020
8-K Report | Data FORM 8-K Jun 10, 2020 Jun 9, 2020
8-K Report | Data FORM 8-K Jun 9, 2020 Jun 3, 2020
8-K Report | Data FORM 8-K May 19, 2020 May 19, 2020
8-K Report | Data FORM 8-K May 19, 2020 May 19, 2020
8-K Report | Data FORM 8-K May 11, 2020 May 11, 2020
8-K Report | Data FORM 8-K May 8, 2020 May 8, 2020
10-Q Report | Data 10-Q May 7, 2020 Mar 31, 2020
8-K Report | Data FORM 8-K May 7, 2020 May 7, 2020
8-K Report | Data FORM 8-K May 6, 2020 May 6, 2020
8-K Report | Data FORM 8-K Mar 18, 2020 Mar 17, 2020
8-K Report | Data FORM 8-K Mar 2, 2020 Feb 28, 2020
10-K Report | Data 10-K Feb 28, 2020 Dec 31, 2019
8-K Report | Data FORM 8-K Feb 27, 2020 Feb 27, 2020
8-K Report | Data FORM 8-K Feb 19, 2020 Feb 14, 2020
SC 13G/A Report Feb 13, 2020
SC 13G/A Report SCHEDULE 13G/A Feb 12, 2020
SC 13G/A Report Feb 4, 2020
10-Q Report | Data 10-Q Nov 7, 2019 Sep 30, 2019
8-K Report | Data FORM 8-K Nov 7, 2019 Nov 4, 2019
10-Q Report | Data FORM 10-Q Aug 8, 2019 Jun 30, 2019
8-K Report | Data FORM 8-K Aug 8, 2019 Aug 8, 2019
8-K Report 8-K Jun 25, 2019 Jun 25, 2019
8-K Report 8-K Jun 20, 2019 Jun 20, 2019
8-K Report 8-K Jun 18, 2019 Jun 18, 2019
SC 13G/A Report SCHEDULE 13G/A May 10, 2019
10-Q Report | Data 10-Q May 2, 2019 Mar 31, 2019
8-K Report 8-K May 2, 2019 May 2, 2019
8-K Report 8-K May 1, 2019 May 1, 2019
10-K Report | Data 10-K Feb 22, 2019 Dec 31, 2018
8-K/A Report 8-K/A Feb 21, 2019 Sep 14, 2018
8-K Report 8-K Feb 21, 2019 Feb 21, 2019
SC 13G/A Report Feb 13, 2019
SC 13G/A Report Feb 11, 2019
SC 13G/A Report Jan 24, 2019
10-Q Report | Data 10-Q Nov 1, 2018 Sep 30, 2018
8-K Report 8-K Nov 1, 2018 Nov 1, 2018
8-K Report 8-K Sep 14, 2018 Sep 14, 2018
8-K Report 8-K Sep 10, 2018 Sep 10, 2018
8-K Report 8-K Aug 20, 2018 Aug 20, 2018
8-K Report 8-K Aug 15, 2018 Aug 14, 2018
8-K Report 8-K Aug 14, 2018 Aug 14, 2018
10-Q Report | Data 10-Q Aug 2, 2018 Jun 30, 2018
8-K Report 8-K Aug 2, 2018 Aug 2, 2018
10-Q Report | Data 10-Q May 3, 2018 Mar 31, 2018
8-K Report 8-K May 3, 2018 May 3, 2018
8-K Report 8-K May 2, 2018 May 2, 2018
SC 13G/A Report Mar 12, 2018
10-K Report | Data 10-K Feb 23, 2018 Dec 31, 2017
8-K Report 8-K Feb 22, 2018 Feb 22, 2018
SC 13G Report Feb 14, 2018
SC 13G/A Report Feb 13, 2018
SC 13G/A Report Feb 9, 2018
SC 13G/A Report SC 13G/A Feb 7, 2018
SC 13G/A Report Jan 19, 2018
8-K Report LIVE FILING Nov 20, 2017 Nov 17, 2017
10-Q Report | Data 10-Q Nov 2, 2017 Sep 30, 2017
8-K Report 8-K Nov 2, 2017 Nov 2, 2017
10-Q Report | Data 10-Q Aug 3, 2017 Jun 30, 2017
8-K Report | Data 8-K Aug 3, 2017 Aug 3, 2017
10-Q Report | Data 10-Q May 4, 2017 Mar 31, 2017
8-K Report 8-K May 4, 2017 May 4, 2017
8-K Report 8-K May 3, 2017 May 3, 2017
10-K Report | Data 10-K Feb 24, 2017 Dec 31, 2016
8-K Report 8-K Feb 23, 2017 Feb 23, 2017
SC 13G/A Report Feb 14, 2017
SC 13G/A Report SC 13G/A Feb 10, 2017
SC 13G/A Report Feb 10, 2017
SC 13G/A Report Jan 12, 2017
8-K Report 8-K Dec 2, 2016 Dec 2, 2016
8-K Report 8-K Nov 29, 2016 Nov 28, 2016
8-K Report 8-K Nov 28, 2016 Nov 28, 2016
10-Q Report | Data 10-Q Nov 3, 2016 Sep 30, 2016
8-K Report 8-K Nov 3, 2016 Nov 3, 2016
SC 13G/A Report Aug 10, 2016
10-Q Report | Data 10-Q Aug 4, 2016 Jun 30, 2016
8-K Report 8-K Aug 4, 2016 Aug 4, 2016
8-K Report LIVE FILING Jun 9, 2016 Jun 8, 2016
SC 13G/A Report May 10, 2016
10-Q Report | Data 10-Q May 5, 2016 Mar 31, 2016
8-K Report LIVE FILING May 5, 2016 May 4, 2016
8-K Report | Data 8-K May 5, 2016 May 5, 2016
8-K Report 8-K Feb 25, 2016 Feb 25, 2016
10-K Report | Data 10-K Feb 24, 2016 Dec 31, 2015
SC 13G/A Report Feb 12, 2016
SC 13G/A Report SC 13G/A Feb 12, 2016
SC 13G/A Report Feb 11, 2016
SC 13G/A Report Jan 26, 2016
10-Q Report | Data 10-Q Nov 5, 2015 Sep 30, 2015
8-K Report 8-K Nov 5, 2015 Nov 5, 2015
SC 13G/A Report SC 13G/A Oct 5, 2015
8-K Report LIVE FILING Oct 1, 2015 Oct 1, 2015
8-K Report LIVE FILING Sep 21, 2015 Sep 21, 2015
10-Q Report | Data 10-Q Aug 6, 2015 Jun 30, 2015
8-K Report 8-K Aug 6, 2015 Aug 6, 2015
SC 13G/A Report Jul 10, 2015
10-Q Report | Data 10-Q May 8, 2015 Mar 31, 2015
8-K Report 8-K May 7, 2015 May 7, 2015
8-K Report 8-K Apr 17, 2015 Apr 16, 2015
8-K/A Report 8-K/A Mar 30, 2015 Nov 7, 2014
10-K Report | Data 10-K Feb 27, 2015 Dec 31, 2014
8-K Report 8-K Feb 25, 2015 Feb 25, 2015
8-K Report 8-K Feb 20, 2015 Feb 20, 2015
SC 13G Report Feb 13, 2015
SC 13G/A Report SCHEDULE 13G AMENDMENT NO. 4 Feb 13, 2015
SC 13G/A Report HOLDINGS REPORT Feb 12, 2015
SC 13G/A Report Feb 11, 2015
SC 13G/A Report SC 13G/A Feb 11, 2015
8-K Report 8-K Feb 10, 2015 Feb 10, 2015
SC 13G/A Report 13G AMENDED ANNUAL FILING - CCOI Feb 9, 2015
8-K Report 8-K Feb 9, 2015 Feb 9, 2015
SC 13G/A Report Feb 9, 2015
SC 13G/A Report Feb 2, 2015
10-Q Report | Data 10-Q Nov 7, 2014 Sep 30, 2014
8-K Report 8-K Nov 7, 2014 Nov 7, 2014
8-K Report 8-K Nov 5, 2014 Nov 3, 2014
10-Q Report | Data 10-Q Aug 7, 2014 Jun 30, 2014
8-K Report 8-K Aug 7, 2014 Aug 7, 2014
8-K Report 8-K Jun 26, 2014 Jun 23, 2014
8-K Report 8-K May 15, 2014 May 15, 2014
8-K Report 8-K May 14, 2014 May 14, 2014
10-Q Report | Data 10-Q May 8, 2014 Mar 31, 2014
8-K Report 8-K May 8, 2014 May 8, 2014
8-K Report LIVE FILING Apr 18, 2014 Apr 17, 2014
8-K Report 8-K Apr 10, 2014 Apr 9, 2014
8-K Report 8-K Apr 2, 2014 Apr 1, 2014
8-K Report 8-K Apr 1, 2014 Apr 1, 2014
8-K Report LIVE FILING Mar 5, 2014 Mar 5, 2014
10-K Report | Data 10-K Feb 28, 2014 Dec 31, 2013
8-K Report 8-K Feb 20, 2014 Feb 19, 2014
SC 13G/A Report Feb 14, 2014
SC 13G/A Report SC 13G/A Feb 14, 2014
SC 13G/A Report Feb 12, 2014
SC 13G Report OWNERSHIP REPORT Feb 12, 2014
SC 13G Report 13G INITIAL ANNUAL FILING - CCOI Feb 6, 2014
SC 13G Report Feb 5, 2014
SC 13G/A Report Jan 28, 2014
10-Q Report | Data 10-Q Nov 8, 2013 Sep 30, 2013
8-K Report 8-K Nov 8, 2013 Nov 8, 2013
8-K Report LIVE FILING Aug 20, 2013 Aug 19, 2013
8-K Report LIVE FILING Aug 14, 2013 Aug 14, 2013
8-K Report LIVE FILING Aug 14, 2013 Aug 14, 2013
10-Q Report | Data 10-Q Aug 8, 2013 Jun 30, 2013
8-K Report 8-K Aug 8, 2013 Aug 8, 2013
8-K Report LIVE FILING Aug 1, 2013 Aug 1, 2013
8-K Report LIVE FILING Jul 26, 2013 Jul 26, 2013
8-K Report 8-K May 14, 2013 May 14, 2013
10-Q Report | Data 10-Q May 8, 2013 Mar 31, 2013
8-K Report 8-K May 7, 2013 May 7, 2013
8-K Report LIVE FILING Apr 18, 2013 Apr 18, 2013
10-K Report | Data 10-K Feb 27, 2013 Dec 31, 2012
8-K Report 8-K Feb 21, 2013 Feb 21, 2013
SC 13G/A Report Feb 14, 2013
SC 13G/A Report SC 13G/A Feb 14, 2013
SC 13G/A Report SCHEDULE 13G AMENDMENT NO.8 Feb 14, 2013
SC 13G Report INITIAL HOLDINGS REPORT Feb 14, 2013
SC 13G/A Report Feb 12, 2013
SC 13G/A Report Feb 8, 2013
10-Q Report | Data 10-Q Nov 7, 2012 Sep 30, 2012
8-K Report 8-K Nov 6, 2012 Nov 6, 2012
10-Q Report | Data 10-Q Aug 9, 2012 Jun 30, 2012
8-K Report 8-K Aug 9, 2012 Aug 9, 2012
10-Q Report | Data 10-Q May 7, 2012 Mar 31, 2012
8-K Report 8-K May 3, 2012 May 3, 2012
8-K Report LIVE FILING Apr 23, 2012 Apr 19, 2012
10-K Report | Data 10-K Feb 27, 2012 Dec 31, 2011
8-K Report 8-K Feb 22, 2012 Feb 22, 2012
SC 13G/A Report SC 13G/A Feb 14, 2012
SC 13G/A Report Feb 14, 2012
SC 13G/A Report Feb 13, 2012
SC 13G/A Report SCHEDULE 13G AMENDMENT NO. 7 Feb 10, 2012
SC 13G/A Report MSIM EXIT Feb 8, 2012
SC 13G Report Feb 7, 2012
SC 13G/A Report Feb 2, 2012
8-K/A Report LIVE FILING Nov 30, 2011 Apr 27, 2011
10-Q Report | Data 10-Q Nov 3, 2011 Sep 30, 2011
8-K Report 8-K Nov 3, 2011 Nov 3, 2011
10-Q Report | Data 10-Q Aug 8, 2011 Jun 30, 2011
8-K Report 8-K Aug 4, 2011 Aug 4, 2011
SC 13G/A Report DOC ONE Jul 11, 2011
10-Q Report 10-Q May 6, 2011 Mar 31, 2011
8-K Report 8-K May 5, 2011 May 5, 2011
8-K Report LIVE FILING Apr 27, 2011 Apr 27, 2011
10-K Report 10-K Feb 28, 2011 Dec 31, 2010
8-K Report 8-K Feb 24, 2011 Feb 24, 2011
SC 13G/A Report CCOI AS OF 12/31/2010 Feb 17, 2011
SC 13G Report SCHEDULE 13G Feb 14, 2011
SC 13G/A Report DOC ONE Feb 14, 2011
SC 13G/A Report Feb 14, 2011
SC 13G/A Report SC 13G/A Feb 10, 2011
SC 13G/A Report AM MSIM AMENDMENT Feb 9, 2011
8-K Report 8-K Feb 8, 2011 Feb 2, 2011
SC 13G Report Feb 3, 2011
8-K Report 8-K Feb 1, 2011 Feb 1, 2011
8-K Report LIVE FILING Jan 12, 2011 Jan 11, 2011
8-K Report LIVE FILING Jan 10, 2011 Jan 10, 2011
SC 13G/A Report SC 13G/A Dec 8, 2010
10-Q Report 10-Q Nov 5, 2010 Sep 30, 2010
8-K Report 8-K Nov 4, 2010 Nov 4, 2010
SC 13G/A Report Oct 8, 2010
10-Q Report 10-Q Aug 5, 2010 Jun 30, 2010
8-K Report 8-K Aug 5, 2010 Aug 5, 2010
10-Q Report 10-Q May 7, 2010 Mar 31, 2010
8-K Report 8-K May 6, 2010 May 6, 2010
8-K Report LIVE FILING Apr 20, 2010 Apr 15, 2010
8-K Report LIVE FILING Apr 7, 2010 Apr 7, 2010
10-K Report 10-K Mar 1, 2010 Dec 31, 2009
8-K Report 8-K Feb 25, 2010 Feb 25, 2010
SC 13G/A Report DOC ONE Feb 16, 2010
SC 13G/A Report FORM SC 13G/A Feb 12, 2010
SC 13G/A Report AM-AMENDMENT-MSIM Feb 12, 2010
SC 13G/A Report CCOI AS OF 12/31/2009 Feb 12, 2010
SC 13G/A Report SCHEDULE 13G-A(1) Feb 10, 2010
SC 13G/A Report COGENT COMMUNICATIONS 13GA4 Feb 9, 2010
SC 13G Report Jan 29, 2010
10-Q Report 10-Q Nov 9, 2009 Sep 30, 2009
10-Q Report 10-Q Aug 7, 2009 Jun 30, 2009
10-Q Report 10-Q May 8, 2009 Mar 31, 2009
10-K Report 10-K Mar 2, 2009 Dec 31, 2008
10-Q Report 10-Q Nov 7, 2008 Sep 30, 2008
10-Q Report 10-Q Aug 8, 2008 Jun 30, 2008
10-Q Report 10-Q May 9, 2008 Mar 31, 2008
10-K Report 10-K Feb 27, 2008 Dec 31, 2007
10-Q Report 10-Q Nov 8, 2007 Sep 30, 2007
10-Q Report 10-Q Aug 8, 2007 Jun 30, 2007
10-Q Report 10-Q May 9, 2007 Mar 31, 2007
10-K Report 10-K Mar 14, 2007 Dec 31, 2006
10-Q Report QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) Nov 7, 2006 Sep 30, 2006
10-Q Report QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) Aug 8, 2006 Jun 30, 2006
10-Q Report QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) May 10, 2006 Mar 31, 2006
10-K Report ANNUAL REPORT PURSUANT TO SECTION 13 AND 15(D) Mar 16, 2006 Dec 31, 2005
10-Q Report QUARTERLY REPORT PURSUANT TO SECTIONS 13 OR 15(D) Nov 14, 2005 Sep 30, 2005
10-Q Report 10-Q Aug 15, 2005 Jun 30, 2005
10-Q Report 10-Q May 6, 2005 Mar 31, 2005
10-K Report 10-K Mar 31, 2005 Dec 31, 2004
10-Q Report 10-Q Nov 15, 2004 Sep 30, 2004
10-Q Report 10-Q Aug 16, 2004 Jun 30, 2004
10-Q Report 10-Q May 17, 2004 Mar 31, 2004
10-K Report FORM 10-K Mar 30, 2004 Dec 31, 2003
10-Q Report 10-Q Nov 14, 2003 Sep 30, 2003
10-Q Report 10-Q Aug 14, 2003 Jun 30, 2003
10-Q Report 10-Q May 15, 2003 Mar 31, 2003
10-K Report 10-K Mar 31, 2003 Dec 31, 2002
10-Q Report FORM 10-Q Nov 13, 2002 Sep 30, 2002
10-Q Report FORM 10-Q Aug 14, 2002 Jun 30, 2002
10-Q Report FORM 10-Q May 15, 2002 Mar 31, 2002
10-K Report FORM 10-K Mar 29, 2002 Dec 31, 2001