Dave Schaeffer

Entity
Individual
Business address
C/O Cogent Communications Holdings, Inc., 2450 N St Nw, 4 Th Floor, 20037 Washington, DC
Signature Ownership
/s/ David Schaeffer
All SEC filings
View on sec.gov
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Dave Schaeffer has filed 146 SEC EDGAR filings since 3/13/2002

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing Aug 11, 2025 Aug 8, 2025 000-51829
4 Open Document Open Filing Aug 8, 2025 Aug 7, 2025 000-51829
144 Open Document Open Filing Jun 16, 2025
4 Open Document Open Filing Jun 16, 2025 Jun 16, 2025 000-51829
144 Open Document Open Filing Jun 16, 2025
4 Open Document Open Filing Jun 16, 2025 Jun 13, 2025 000-51829
144 Open Document Open Filing Jun 13, 2025
144 Open Document Open Filing Jun 13, 2025
144 Open Document Open Filing Jun 12, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 12, 2025 000-51829
144 Open Document Open Filing Jun 12, 2025
4 Open Document Open Filing Jun 12, 2025 Jun 11, 2025 000-51829
144 Open Document Open Filing Jun 11, 2025
144 Open Document Open Filing Jun 11, 2025
4 Open Document Open Filing Jun 10, 2025 Jun 10, 2025 000-51829
144 Open Document Open Filing Jun 10, 2025
144 Open Document Open Filing Jun 10, 2025
4 Open Document Open Filing Jun 9, 2025 Jun 9, 2025 000-51829
144 Open Document Open Filing Jun 9, 2025
4 Open Document Open Filing Jun 9, 2025 Jun 6, 2025 000-51829
144 Open Document Open Filing Jun 9, 2025
4 Open Document Open Filing Jun 9, 2025 Jun 5, 2025 000-51829
144 Open Document Open Filing Jun 6, 2025
144 Open Document Open Filing Jun 6, 2025
4 Open Document Open Filing Jun 5, 2025 Jun 4, 2025 000-51829
144 Open Document Open Filing Jun 5, 2025
144 Open Document Open Filing Jun 5, 2025
144 Open Document Open Filing Jun 4, 2025
4 Open Document Open Filing Jun 4, 2025 Jun 3, 2025 000-51829
144 Open Document Open Filing Jun 4, 2025
144 Open Document Open Filing Jun 3, 2025
144 Open Document Open Filing Jun 3, 2025
4 Open Document Open Filing Jun 3, 2025 Jun 2, 2025 000-51829
144 Open Document Open Filing Jun 2, 2025
144 Open Document Open Filing Jun 2, 2025
4 Open Document Open Filing Jun 2, 2025 May 30, 2025 000-51829
144 Open Document Open Filing May 30, 2025
4 Open Document Open Filing May 30, 2025 May 29, 2025 000-51829
144 Open Document Open Filing May 29, 2025
4 Open Document Open Filing May 29, 2025 May 28, 2025 000-51829
144 Open Document Open Filing May 28, 2025
4 Open Document Open Filing May 28, 2025 May 27, 2025 000-51829
144 Open Document Open Filing May 27, 2025
4 Open Document Open Filing May 27, 2025 May 23, 2025 000-51829
144 Open Document Open Filing May 23, 2025
4 Open Document Open Filing May 23, 2025 May 22, 2025 000-51829
144 Open Document Open Filing May 22, 2025
4 Open Document Open Filing May 22, 2025 May 21, 2025 000-51829
144 Open Document Open Filing May 21, 2025
4 Open Document Open Filing May 21, 2025 May 20, 2025 000-51829
144 Open Document Open Filing May 20, 2025
4 Open Document Open Filing May 19, 2025 May 16, 2025 000-51829
144 Open Document Open Filing May 16, 2025
4 Open Document Open Filing May 16, 2025 May 15, 2025 000-51829
144 Open Document Open Filing May 15, 2025
4 Open Document Open Filing May 15, 2025 May 14, 2025 000-51829
4 Open Document Open Filing May 14, 2025 May 12, 2025 000-51829
144 Open Document Open Filing May 14, 2025
144 Open Document Open Filing May 12, 2025
4 Open Document Open Filing Apr 4, 2025 Apr 4, 2025 000-51829
144 Open Document Open Filing Mar 14, 2025
4 Open Document Open Filing Mar 5, 2025 Mar 4, 2025 000-51829
144 Open Document Open Filing Mar 4, 2025
4 Open Document Open Filing Jan 15, 2025 Jan 14, 2025 000-51829
4 Open Document Open Filing Dec 17, 2024 Dec 16, 2024 000-51829
144 Open Document Open Filing Dec 16, 2024
4 Open Document Open Filing Nov 27, 2024 Nov 25, 2024 000-51829
144 Open Document Open Filing Nov 25, 2024
4 Open Document Open Filing Sep 11, 2024 Sep 10, 2024 000-51829
144 Open Document Open Filing Sep 10, 2024
4 Open Document Open Filing Aug 28, 2024 Aug 27, 2024 000-51829
144 Open Document Open Filing Aug 27, 2024
4 Open Document Open Filing Jun 17, 2024 Jun 14, 2024 000-51829
144 Open Document Open Filing Jun 14, 2024
4 Open Document Open Filing Jun 13, 2024 Jun 12, 2024 000-51829
144 Open Document Open Filing Jun 12, 2024
4 Open Document Open Filing May 14, 2024 May 13, 2024 000-51829
144 Open Document Open Filing May 13, 2024
4 Open Document Open Filing Apr 1, 2024 Apr 1, 2024 000-51829
4 Open Document Open Filing Mar 18, 2024 Mar 15, 2024 000-51829
4 Open Document Open Filing Mar 15, 2024 Mar 14, 2024 000-51829
4/A Open Document Open Filing Mar 14, 2024 Mar 12, 2024 000-51829
4/A Open Document Open Filing Mar 14, 2024 Mar 11, 2024 000-51829
144 Open Document Open Filing Mar 13, 2024
4 Open Document Open Filing Mar 12, 2024 Mar 12, 2024 000-51829
4 Open Document Open Filing Mar 12, 2024 Mar 11, 2024 000-51829
4 Open Document Open Filing Mar 8, 2024 Mar 6, 2024 000-51829
144 Open Document Open Filing Mar 6, 2024
4 Open Document Open Filing Jan 5, 2024 Jan 3, 2024 000-51829
4 Open Document Open Filing Dec 14, 2023 Dec 13, 2023 000-51829
144 Open Document Open Filing Dec 13, 2023
4 Open Document Open Filing Dec 1, 2023 Dec 1, 2023 000-51829
4 Open Document Open Filing Dec 1, 2023 Nov 30, 2023 000-51829
144 Open Document Open Filing Nov 30, 2023
4 Open Document Open Filing Nov 16, 2023 Nov 14, 2023 000-51829
144 Open Document Open Filing Nov 14, 2023
4 Open Document Open Filing Sep 18, 2023 Sep 15, 2023 000-51829
144 Open Document Open Filing Sep 15, 2023
4 Open Document Open Filing Sep 14, 2023 Sep 12, 2023 000-51829
4 Open Document Open Filing Sep 12, 2023 Sep 8, 2023 000-51829
144 Open Document Open Filing Sep 11, 2023
144 Open Document Open Filing Sep 7, 2023
144 Open Document Open Filing Aug 21, 2023
144 Open Document Open Filing Aug 15, 2023
4 Open Document Open Filing Jun 8, 2023 Jun 8, 2023 000-51829
4 Open Document Open Filing Jun 8, 2023 Jun 6, 2023 000-51829
144 Open Document Open Filing Jun 5, 2023
4 Open Document Open Filing May 12, 2023 May 10, 2023 000-51829
144 Open Document Open Filing May 10, 2023
4 Open Document Open Filing FORM 4 Jan 4, 2023 Jan 3, 2023 000-51829
4 Open Document Open Filing FORM 4 Jan 5, 2022 Jan 3, 2022 000-51829
4 Open Document Open Filing FORM 4 Feb 25, 2021 Feb 24, 2021 000-51829
4 Open Document Open Filing FORM 4 Jan 19, 2021 Jan 18, 2021 000-51829
4 Open Document Open Filing FORM 4 Mar 4, 2020 Mar 1, 2020 000-51829
4 Open Document Open Filing FORM 4 Feb 18, 2020 Feb 14, 2020 000-51829
4 Open Document Open Filing FORM 4 May 1, 2019 May 1, 2019 000-51829
4 Open Document Open Filing FORM 4 Feb 22, 2018 Feb 21, 2018 000-51829
4 Open Document Open Filing FORM 4 May 3, 2017 May 3, 2017 000-51829
4/A Open Document Open Filing FORM 4/A Jun 15, 2016 May 4, 2016 000-51829
4 Open Document Open Filing FORM 4 May 5, 2016 May 4, 2016 000-51829
4 Open Document Open Filing FORM 4 Aug 7, 2014 Aug 6, 2014 000-51829