MICHAEL S. WEISS

Business address
750 Lexington Ave, New York, NY, 10022
Top holdings (ownership)
TGTX, FBIO, CKPT, and MBIO
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MICHAEL S. WEISS has filed 138 SEC EDGAR filings since 14 May 1997

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing FORM 4 07 Nov 2025 05 Nov 2025 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 30 May 2025 28 May 2025 001-38128
4 Open Document Open Filing FORM 4 30 Jan 2025 29 Jan 2025 001-32639
4 Open Document Open Filing 03 Jan 2025 01 Jan 2025 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 17 Dec 2024 13 Dec 2024 001-38128
4 Open Document Open Filing OWNERSHIP DOCUMENT 16 May 2024 14 May 2024 001-38128
4 Open Document Open Filing FORM 4 08 Jan 2024 05 Jan 2024 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 03 Jan 2024 01 Jan 2024 001-35366
SC 13D/A Open Document Open Filing SC 13D/A 21 Nov 2023
4 Open Document Open Filing OWNERSHIP DOCUMENT 16 Nov 2023 14 Nov 2023 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 14 Aug 2023 11 Aug 2023 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 07 Jul 2023 05 Jul 2023 001-38191
4 Open Document Open Filing OWNERSHIP DOCUMENT 15 Jun 2023 13 Jun 2023 001-38128
3/A Open Document Open Filing OWNERSHIP DOCUMENT 06 Apr 2023 26 Sep 2016 001-38191
4 Open Document Open Filing OWNERSHIP DOCUMENT 03 Apr 2023 29 Jul 2022 001-38191
4 Open Document Open Filing OWNERSHIP DOCUMENT 14 Mar 2023 12 Mar 2023 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 14 Feb 2023 10 Feb 2023 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 04 Jan 2023 01 Jan 2023 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 22 Jul 2022 20 Jul 2022 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 24 Jun 2022 16 Jun 2022 001-38128
4 Open Document Open Filing OWNERSHIP DOCUMENT 29 Apr 2022 01 Jan 2022 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 07 Jan 2022 29 Dec 2021 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 08 Jul 2021 28 Jun 2021 001-38191
4 Open Document Open Filing OWNERSHIP DOCUMENT 22 Jun 2021 18 Jun 2021 001-32639
4 Open Document Open Filing FORM 4 11 Jun 2021 10 Jun 2021 001-38128
4 Open Document Open Filing FORM 4 09 Apr 2021 01 Jan 2021 001-35366
5 Open Document Open Filing OWNERSHIP DOCUMENT 31 Dec 2020 31 Dec 2020 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 19 Aug 2020 14 Jul 2020 001-38191
4 Open Document Open Filing OWNERSHIP DOCUMENT 24 Jun 2020 22 Jun 2020 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 09 Jun 2020 05 Jun 2020 001-38128
4 Open Document Open Filing FORM 4 13 Mar 2020 01 Jan 2020 001-35366
4 Open Document Open Filing FORM 4 17 Jan 2020 14 Jun 2018 001-38191
4 Open Document Open Filing FORM4 27 Jun 2019 26 Jun 2019 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 14 Jun 2019 13 Jun 2019 001-38128
4 Open Document Open Filing FORM4 14 Jun 2019 13 Jun 2019 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 12 Apr 2019 01 Jan 2018 001-35366
4 Open Document Open Filing FORM 4 08 Aug 2018 07 Aug 2018 001-38114
4 Open Document Open Filing FORM-4 28 Jun 2018 26 Jun 2018 001-32639
4 Open Document Open Filing FORM 4 15 Jun 2018 14 Jun 2018 001-38128
3 Open Document Open Filing FORM 3 18 Aug 2017 13 Mar 2017 001-38114
3/A Open Document Open Filing FORM 3/A 20 Jul 2017 26 Sep 2016 000-55668
3 Open Document Open Filing FORM 3 30 Jun 2017 26 Sep 2016 000-55668
4 Open Document Open Filing FORM-4 19 Jun 2017 19 Jun 2017 001-32639
4 Open Document Open Filing FORM 4 15 Jun 2017 15 Jun 2017 000-55506
SC 13D/A Open Document Open Filing SC 13D/A 27 Jan 2017
4 Open Document Open Filing PRIMARY DOCUMENT 27 Jan 2017 01 Jan 2017 001-35366
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jan 2017 30 Dec 2016 001-32639
3 Open Document Open Filing 3 04 Oct 2016 09 Sep 2016 000-55506
3 Open Document Open Filing OWNERSHIP DOCUMENT 22 Sep 2016 12 Sep 2016 001-12629
4 Open Document Open Filing PRIMARY DOCUMENT 01 Sep 2016 01 Sep 2016 001-32639
SC 13D/A Open Document Open Filing FORM SC 13D/A 28 Jan 2016
4 Open Document Open Filing 05 Jan 2016 01 Jan 2016 001-35366
4/A Open Document Open Filing OWNERSHIP DOCUMENT 04 Jan 2016 31 Dec 2015 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 04 Jan 2016 31 Dec 2015 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 05 Jun 2015 04 Jun 2015 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 02 Jan 2015 30 Dec 2014 001-32639
4 Open Document Open Filing OWNERSHIP DOCUMENT 18 Dec 2014 16 Dec 2014 001-32639
3 Open Document Open Filing PRIMARY DOCUMENT 12 Dec 2014 12 Dec 2014 001-36757
SC 13D/A Open Document Open Filing SC 13D/A 10 Nov 2014
4 Open Document Open Filing 10 Nov 2014 06 Nov 2014 001-35366
SC 13D Open Document Open Filing SCHEDULE 13D 28 Feb 2014
4 Open Document Open Filing 24 Feb 2014 20 Feb 2014 001-35366
4 Open Document Open Filing OWNERSHIP DOCUMENT 02 Jan 2014 30 Dec 2013 001-32639