John Chang

Business address
2450 N St Nw, 4 Th Floor, Washington, DC, 20037
Top holdings (ownership)
CCOI
Get insider transactions for this reporting owner
John Chang has filed 60 SEC EDGAR filings since 07 Aug 2019

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 02 Dec 2025 01 Dec 2025 000-51829
4 Open Document Open Filing 03 Jun 2025 02 Jun 2025 000-51829
4 Open Document Open Filing 15 May 2025 15 May 2025 000-51829
4 Open Document Open Filing 11 Apr 2025 10 Apr 2025 000-51829
4 Open Document Open Filing 12 Mar 2025 10 Mar 2025 000-51829
4 Open Document Open Filing 07 Mar 2025 05 Mar 2025 000-51829
4 Open Document Open Filing 13 Jan 2025 09 Jan 2025 000-51829
4 Open Document Open Filing 19 Dec 2024 18 Dec 2024 000-51829
4 Open Document Open Filing 06 Dec 2024 04 Dec 2024 000-51829
4 Open Document Open Filing 03 Dec 2024 01 Dec 2024 000-51829
4 Open Document Open Filing 12 Nov 2024 12 Nov 2024 000-51829
144 Open Document Open Filing 12 Nov 2024
4 Open Document Open Filing 13 Sep 2024 12 Sep 2024 000-51829
144 Open Document Open Filing 27 Aug 2024
4 Open Document Open Filing 26 Aug 2024 23 Aug 2024 000-51829
144 Open Document Open Filing 20 Aug 2024
144 Open Document Open Filing 14 Mar 2024
4/A Open Document Open Filing 14 Feb 2024 01 Feb 2024 000-51829
4 Open Document Open Filing 01 Feb 2024 01 Feb 2024 000-51829
4/A Open Document Open Filing 30 Jan 2024 03 Jan 2024 000-51829
4 Open Document Open Filing 05 Jan 2024 03 Jan 2024 000-51829
4 Open Document Open Filing 28 Dec 2023 26 Dec 2023 000-51829
144 Open Document Open Filing 26 Dec 2023
4 Open Document Open Filing 22 Dec 2023 21 Dec 2023 000-51829
144 Open Document Open Filing 21 Dec 2023
4 Open Document Open Filing 20 Dec 2023 20 Dec 2023 000-51829
4 Open Document Open Filing 15 Dec 2023 14 Dec 2023 000-51829
144 Open Document Open Filing 14 Dec 2023
4 Open Document Open Filing 11 Dec 2023 11 Dec 2023 000-51829
144 Open Document Open Filing 11 Dec 2023
4 Open Document Open Filing 01 Dec 2023 01 Dec 2023 000-51829
4 Open Document Open Filing 04 May 2023 03 May 2023 000-51829
144 Open Document Open Filing 03 May 2023
4 Open Document Open Filing 18 Apr 2023 17 Apr 2023 000-51829
144 Open Document Open Filing 17 Apr 2023
4 Open Document Open Filing FORM 4 02 Feb 2023 01 Feb 2023 000-51829
4 Open Document Open Filing FORM 4 27 Jan 2023 26 Jan 2023 000-51829
4 Open Document Open Filing FORM 4 18 Jan 2023 17 Jan 2023 000-51829
4 Open Document Open Filing FORM 4 13 Jan 2023 12 Jan 2023 000-51829
4 Open Document Open Filing FORM 4 04 Jan 2023 03 Jan 2023 000-51829
4 Open Document Open Filing FORM 4 01 Dec 2022 01 Dec 2022 000-51829
4 Open Document Open Filing FORM 4 07 Apr 2022 05 Apr 2022 000-51829
4 Open Document Open Filing FORM 4 04 Apr 2022 01 Apr 2022 000-51829
4 Open Document Open Filing FORM 4 01 Apr 2022 31 Mar 2022 000-51829
4 Open Document Open Filing FORM 4 18 Mar 2022 17 Mar 2022 000-51829
4 Open Document Open Filing FORM 4 05 Jan 2022 03 Jan 2022 000-51829
4 Open Document Open Filing FORM 4 11 May 2021 10 May 2021 000-51829
4 Open Document Open Filing FORM 4 03 May 2021 30 Apr 2021 000-51829
4 Open Document Open Filing FORM 4 06 Apr 2021 05 Apr 2021 000-51829
4 Open Document Open Filing FORM 4 16 Mar 2021 15 Mar 2021 000-51829
4 Open Document Open Filing FORM 4 25 Feb 2021 24 Feb 2021 000-51829
4 Open Document Open Filing FORM 4 05 Jan 2021 04 Jan 2021 000-51829
4 Open Document Open Filing FORM 4 01 Sep 2020 01 Sep 2020 000-51829
4 Open Document Open Filing FORM 4 31 Jul 2020 31 Jul 2020 000-51829
4 Open Document Open Filing FORM 4 22 Jul 2020 21 Jul 2020 000-51829
4 Open Document Open Filing FORM 4 04 Mar 2020 03 Mar 2020 000-51829
4 Open Document Open Filing FORM 4 03 Mar 2020 02 Mar 2020 000-51829
4 Open Document Open Filing FORM 4 18 Feb 2020 14 Feb 2020 000-51829
4 Open Document Open Filing FORM 4 03 Jan 2020 02 Jan 2020 000-51829
3 Open Document Open Filing FORM 3 07 Aug 2019 07 Aug 2019 000-51829