Michael Richman

Business address
2635 Technology Forest Blvd., Houston, TX, 77381
Top holdings (ownership)
PIRS and NXTC
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Michael Richman has filed 62 SEC EDGAR filings since 16 Jun 2006

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open Document Open Filing 03 Feb 2025 31 Jan 2025 001-38905
4 Open Document Open Filing 02 Apr 2024 29 Mar 2024 001-38905
4 Open Document Open Filing 01 Feb 2024 31 Jan 2024 001-38905
4 Open Document Open Filing FORM 4 23 Jun 2023 21 Jun 2023 001-37471
4 Open Document Open Filing 01 Mar 2023 28 Feb 2023 001-38905
4 Open Document Open Filing FORM 4 24 Jun 2022 22 Jun 2022 001-37471
4 Open Document Open Filing 02 Feb 2022 31 Jan 2022 001-38905
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jun 2021 25 Jun 2021 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 16 Mar 2021 15 Mar 2021 001-38905
4 Open Document Open Filing PRIMARY DOCUMENT 25 Jun 2020 23 Jun 2020 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 03 Mar 2020 28 Feb 2020 001-38905
4 Open Document Open Filing PRIMARY DOCUMENT 28 Jan 2020 25 Jan 2020 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 28 Oct 2019 25 Oct 2019 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 26 Jul 2019 25 Jul 2019 001-37471
3 Open Document Open Filing PRIMARY DOCUMENT 08 May 2019 08 May 2019 001-38905
4 Open Document Open Filing PRIMARY DOCUMENT 30 Apr 2019 25 Apr 2019 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2019 25 Jan 2019 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 29 Oct 2018 25 Oct 2018 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 26 Jul 2018 25 Jul 2018 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 26 Apr 2018 25 Apr 2018 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2018 25 Jan 2018 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 27 Oct 2017 25 Oct 2017 001-37471
4 Open Document Open Filing FORM 4 SUBMISSION 27 Jul 2017 25 Jul 2017 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 20 Jun 2017 16 Jun 2017 000-24469
4 Open Document Open Filing FORM 4 SUBMISSION 27 Apr 2017 25 Apr 2017 001-37471
4 Open Document Open Filing FORM 4 SUBMISSION 30 Jan 2017 25 Jan 2017 001-37471
4 Open Document Open Filing FORM 4 SUBMISSION 27 Oct 2016 25 Oct 2016 001-37471
4 Open Document Open Filing FORM 4 24 Oct 2016 20 Oct 2016 000-24469
4 Open Document Open Filing PRIMARY DOCUMENT 04 Oct 2016 30 Sep 2016 001-33004
4 Open Document Open Filing FORM 4 SUBMISSION 01 Aug 2016 25 Jul 2016 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jul 2016 30 Jun 2016 001-33004
4 Open Document Open Filing PRIMARY DOCUMENT 18 May 2016 16 May 2016 001-33004
4 Open Document Open Filing FORM 4 SUBMISSION 29 Apr 2016 27 Apr 2016 001-37471
4 Open Document Open Filing FORM 4 SUBMISSION 18 Feb 2016 16 Feb 2016 001-37471
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jan 2016 15 Jan 2016 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jan 2016 31 Dec 2015 001-33004
4 Open Document Open Filing FORM 4 16 Nov 2015 13 Nov 2015 000-24469
4 Open Document Open Filing FORM 4 SUBMISSION 30 Oct 2015 15 Oct 2015 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2015 30 Sep 2015 001-33004
4 Open Document Open Filing FORM 4 SUBMISSION 17 Jul 2015 15 Jul 2015 001-37471
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jul 2015 30 Jun 2015 001-33004
3 Open Document Open Filing FORM 3 SUBMISSION 29 Jun 2015 29 Jun 2015 001-37471
4 Open Document Open Filing FORM 4 22 Apr 2015 21 Apr 2015 000-24469
3 Open Document Open Filing FORM 3 22 Apr 2015 21 Apr 2015 000-24469
4 Open Document Open Filing PRIMARY DOCUMENT 09 Apr 2015 08 Apr 2015 001-33004
4 Open Document Open Filing FORM 4 01 Apr 2015 30 Mar 2015 001-33004
4 Open Document Open Filing FORM 4 04 Mar 2014 28 Feb 2014 001-33004
4 Open Document Open Filing FORM 4 01 May 2013 29 Apr 2013 001-33004
4 Open Document Open Filing FORM 4 05 Mar 2012 01 Mar 2012 001-33004