Michael Kauffman

Business address
C/O Karyopharm Therapeutics Inc., 85 Wells Avenue, Second Floor, Newton, MA, 02459
Top holdings (ownership)
KPTI, VSTM, and ACET
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Michael Kauffman has filed 139 SEC EDGAR filings since 05 Jun 2006

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing OWNERSHIP DOCUMENT 25 Nov 2025 21 Nov 2025 001-35403
144 Open Document Open Filing 21 Nov 2025
4 Open Document Open Filing 23 Jun 2025 18 Jun 2025 001-38542
4 Open Document Open Filing 06 Jun 2025 04 Jun 2025 001-36740
3 Open Document Open Filing 06 Jun 2025 04 Jun 2025 001-36740
4 Open Document Open Filing OWNERSHIP DOCUMENT 27 May 2025 22 May 2025 001-35403
4 Open Document Open Filing 4 23 Aug 2024 21 Aug 2024 001-38359
4 Open Document Open Filing 21 Jun 2024 20 Jun 2024 001-38542
4 Open Document Open Filing OWNERSHIP DOCUMENT 20 Jun 2024 18 Jun 2024 001-35403
4 Open Document Open Filing 4 07 Jun 2024 05 Jun 2024 001-38359
144 Open Document Open Filing 05 Jun 2024
4 Open Document Open Filing OWNERSHIP DOCUMENT 13 Mar 2024 11 Mar 2024 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 16 Aug 2023 14 Aug 2023 001-38359
4 Open Document Open Filing FORM 4 SUBMISSION 26 Jul 2023 24 Jul 2023 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2023 15 Jun 2023 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 02 Jun 2023 01 Jun 2023 001-38359
4 Open Document Open Filing OWNERSHIP DOCUMENT 16 May 2023 15 May 2023 001-35403
4/A Open Document Open Filing OWNERSHIP DOCUMENT 20 Dec 2022 12 May 2022 001-35403
4 Open Document Open Filing OWNERSHIP DOCUMENT 24 Jun 2022 22 Jun 2022 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jun 2022 16 Jun 2022 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 03 Jun 2022 02 Jun 2022 001-38359
4 Open Document Open Filing FORM 4 SUBMISSION 02 Mar 2022 28 Feb 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 22 Feb 2022 17 Feb 2022 001-36167
SC 13G/A Open Document Open Filing SC 13G/A 11 Feb 2022
4 Open Document Open Filing FORM 4 SUBMISSION 09 Feb 2022 07 Feb 2022 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jan 2022 03 Jan 2022 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 18 Nov 2021 17 Nov 2021 001-38359
3 Open Document Open Filing FORM 3 SUBMISSION 18 Nov 2021 17 Nov 2021 001-38359
4 Open Document Open Filing FORM 4 SUBMISSION 30 Jun 2021 28 Jun 2021 001-38542
4 Open Document Open Filing OWNERSHIP DOCUMENT 30 Jun 2021 28 Jun 2021 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 23 Mar 2021 18 Mar 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 01 Mar 2021 25 Feb 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 22 Feb 2021 18 Feb 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 17 Feb 2021 11 Feb 2021 001-36167
SC 13G/A Open Document Open Filing SC 13G/A 16 Feb 2021
4 Open Document Open Filing FORM 4 SUBMISSION 09 Feb 2021 05 Feb 2021 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 14 Oct 2020 12 Oct 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 18 Aug 2020 17 Aug 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jul 2020 15 Jul 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 13 Jul 2020 09 Jul 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 26 Jun 2020 24 Jun 2020 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 24 Jun 2020 22 Jun 2020 001-36167
4 Open Document Open Filing PRIMARY DOCUMENT 18 Jun 2020 16 Jun 2020 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jun 2020 15 Jun 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 11 Jun 2020 09 Jun 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 19 May 2020 15 May 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 11 May 2020 07 May 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Apr 2020 08 Apr 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 11 Mar 2020 09 Mar 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 21 Feb 2020 19 Feb 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 19 Feb 2020 15 Feb 2020 001-36167
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2020
4 Open Document Open Filing FORM 4 SUBMISSION 12 Feb 2020 10 Feb 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 07 Feb 2020 05 Feb 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Jan 2020 09 Jan 2020 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 11 Dec 2019 09 Dec 2019 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 12 Nov 2019 08 Nov 2019 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 05 Nov 2019 01 Nov 2019 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 17 Sep 2019 16 Sep 2019 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 27 Jun 2019 25 Jun 2019 001-38542
4 Open Document Open Filing 4 25 Jun 2019 21 Jun 2019 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 14 Jun 2019 13 Jun 2019 000-31141
4 Open Document Open Filing FORM 4 SUBMISSION 19 Feb 2019 15 Feb 2019 001-36167
5 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2019 31 Dec 2018 001-35403
SC 13G/A Open Document Open Filing SC 13G/A 11 Feb 2019
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jan 2019 07 Jan 2019 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Dec 2018 07 Dec 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 27 Nov 2018 26 Nov 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 21 Nov 2018 19 Nov 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 09 Nov 2018 07 Nov 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 22 Oct 2018 18 Oct 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 09 Oct 2018 08 Oct 2018 001-36167
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2018 28 Sep 2018 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 18 Sep 2018 18 Sep 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Sep 2018 07 Sep 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 21 Aug 2018 20 Aug 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 08 Aug 2018 07 Aug 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jul 2018 18 Jul 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Jul 2018 09 Jul 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 27 Jun 2018 25 Jun 2018 001-38542
3/A Open Document Open Filing FORM 3/A SUBMISSION 22 Jun 2018 20 Jun 2018 001-38542
3 Open Document Open Filing FORM 3 SUBMISSION 20 Jun 2018 20 Jun 2018 001-38542
4 Open Document Open Filing FORM 4 SUBMISSION 19 Jun 2018 18 Jun 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 14 Jun 2018 12 Jun 2018 000-31141
4 Open Document Open Filing FORM 4 SUBMISSION 11 Jun 2018 07 Jun 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 21 May 2018 18 May 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 08 May 2018 07 May 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 20 Apr 2018 18 Apr 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 10 Apr 2018 09 Apr 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 20 Mar 2018 19 Mar 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 08 Mar 2018 07 Mar 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 22 Feb 2018 20 Feb 2018 001-36167
SC 13G/A Open Document Open Filing SC 13G AMENDMENT NO. 4 13 Feb 2018
4 Open Document Open Filing FORM 4 SUBMISSION 08 Feb 2018 07 Feb 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 25 Jan 2018 24 Jan 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jan 2018 18 Jan 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jan 2018 08 Jan 2018 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 20 Dec 2017 18 Dec 2017 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 08 Dec 2017 07 Dec 2017 001-36167
4 Open Document Open Filing 4 15 Jun 2017 13 Jun 2017 001-35403
4 Open Document Open Filing FORM 4 SUBMISSION 06 Apr 2017 05 Apr 2017 000-31141
3 Open Document Open Filing FORM 3 SUBMISSION 06 Apr 2017 05 Apr 2017 000-31141
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT NO. 3 14 Feb 2017
4 Open Document Open Filing FORM 4 SUBMISSION 24 Jan 2017 20 Jan 2017 001-36167
4 Open Document Open Filing 4 16 Jun 2016 14 Jun 2016 001-35403
4 Open Document Open Filing 4 17 Feb 2016 19 Mar 2015 001-35403
5 Open Document Open Filing FORM 5 SUBMISSION 12 Feb 2016 31 Dec 2015 001-36167
SC 13G/A Open Document Open Filing SC 13G AMENDMENT NO. 2 12 Feb 2016
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jan 2016 15 Jan 2016 001-36167
4 Open Document Open Filing 4 16 Jun 2015 12 Jun 2015 001-35403
SC 13G/A Open Document Open Filing SCHEDULE 13G AMENDMENT NO. 1 13 Feb 2015
4 Open Document Open Filing FORM 4 SUBMISSION 22 Jan 2015 19 Jan 2015 001-36167
4 Open Document Open Filing FORM 4 SUBMISSION 14 Jan 2015 12 Jan 2015 001-36167
4 Open Document Open Filing 4 18 Sep 2014 17 Sep 2014 001-35403
4 Open Document Open Filing FORM 4 - 02 Jul 2014 02 Jul 2014 001-36167
4 Open Document Open Filing FORM 4 - 19 Jun 2014 17 Jun 2014 001-36167
4 Open Document Open Filing 4 11 Jun 2014 10 Jun 2014 001-35403
5 Open Document Open Filing 5 14 Feb 2014 31 Dec 2013 001-36167
SC 13G Open Document Open Filing SC 13G 14 Feb 2014