DAVID PLATT

Business address
12 Appleton Circle, Newton, MA, 02459
Top holdings (ownership)
BIXT
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DAVID PLATT has filed 77 SEC EDGAR filings since 04 Feb 2002

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4/A Open Document Open Filing PRIMARY DOCUMENT 18 Nov 2025 24 Oct 2024 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 28 Oct 2024 25 Oct 2024 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 20 Aug 2024 15 Aug 2024 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 27 Mar 2024 27 Mar 2024 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jan 2024 16 Jan 2024 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 15 Sep 2023 14 Sep 2023 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 24 Aug 2023 21 Aug 2023 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 17 May 2023 17 May 2023 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 10 May 2023 14 Apr 2023 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 08 Feb 2023 21 Nov 2022 001-35027
5 Open Document Open Filing PRIMARY DOCUMENT 08 Feb 2023 31 Dec 2022 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 16 Aug 2022 16 Aug 2022 001-35027
4 Open Document Open Filing 13 May 2022 11 May 2022 001-35027
5 Open Document Open Filing 28 Jan 2022 31 Dec 2021 001-35027
4 Open Document Open Filing 18 Jan 2022 19 Nov 2021 001-35027
4 Open Document Open Filing STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 07 Jun 2021 04 Jun 2021 001-35027
4 Open Document Open Filing FORM 4 19 Jan 2021 15 Jan 2021 001-35027
5 Open Document Open Filing 04 Jan 2021 31 Dec 2020 001-35027
5 Open Document Open Filing SF0004_DAVID PLATT_FORM5 15 Jun 2020 31 Dec 2019 001-35027
4 Open Document Open Filing OWNERSHIP DOCUMENT 07 Jan 2020 07 Jan 2020 001-35027
SC 13D Open Document Open Filing SCHEDULE 13D 30 May 2019
3 Open Document Open Filing OWNERSHIP DOCUMENT 27 Sep 2018 21 Sep 2018 001-35027
4 Open Document Open Filing PRIMARY DOCUMENT 18 May 2015 14 May 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 10 Mar 2015 09 Mar 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 19 Feb 2015 17 Feb 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2015 12 Feb 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 04 Feb 2015 02 Feb 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2015 27 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 27 Jan 2015 23 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 23 Jan 2015 20 Jan 2015 000-54586
4/A Open Document Open Filing PRIMARY DOCUMENT 20 Jan 2015 15 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jan 2015 15 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 12 Jan 2015 09 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 08 Jan 2015 07 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 07 Jan 2015 05 Jan 2015 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jan 2015 31 Dec 2014 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 31 Dec 2014 30 Dec 2014 000-54586
4 Open Document Open Filing PRIMARY DOCUMENT 08 Apr 2014 12 Feb 2014 000-54586