D. Mark Leland

Business address
333 Clay Street, Suite 2400, Houston, TX, 77002
Get insider transactions for this reporting owner
D. Mark Leland has filed 107 SEC EDGAR filings since 1/9/2004

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
3 Open Document Open Filing OWNERSHIP DOCUMENT Sep 30, 2025 Sep 30, 2025 001-42883
4 Open Document Open Filing FORM 4 May 20, 2025 May 19, 2025 001-38048
4 Open Document Open Filing 4 May 8, 2025 May 8, 2025 001-32729
5 Open Document Open Filing 5 Jan 21, 2025 Dec 31, 2024 001-38048
5 Open Document Open Filing 5 Jan 7, 2025 Dec 31, 2024 001-32729
4 Open Document Open Filing PRIMARY DOCUMENT Jul 22, 2024 Jul 22, 2024 001-38629
4 Open Document Open Filing 4 May 21, 2024 May 20, 2024 001-38048
4 Open Document Open Filing 4 May 9, 2024 May 9, 2024 001-32729
4 Open Document Open Filing PRIMARY DOCUMENT May 8, 2024 May 6, 2024 001-38629
5 Open Document Open Filing 5 Feb 13, 2024 Dec 31, 2023 001-38048
4 Open Document Open Filing 4 Jun 2, 2023 May 31, 2023 001-38048
4 Open Document Open Filing PRIMARY DOCUMENT May 10, 2023 May 8, 2023 001-38629
4 Open Document Open Filing FORM 4 SUBMISSION May 4, 2023 May 4, 2023 001-32729
5 Open Document Open Filing FORM 5 SUBMISSION Feb 9, 2023 Dec 31, 2022 001-38048
5 Open Document Open Filing FORM 5 SUBMISSION Jan 30, 2023 Dec 31, 2022 001-32729
5 Open Document Open Filing FORM 5 SUBMISSION Jan 30, 2023 Dec 31, 2021 001-32729
4 Open Document Open Filing FORM 4 SUBMISSION Jul 5, 2022 Jun 30, 2022 001-38048
4 Open Document Open Filing FORM 4 SUBMISSION May 6, 2022 May 5, 2022 001-32729
4 Open Document Open Filing FORM 4 Feb 23, 2022 Feb 22, 2022 001-38048
5 Open Document Open Filing PRIMARY DOCUMENT Jan 4, 2022 Dec 31, 2021 001-38629
4 Open Document Open Filing PRIMARY DOCUMENT Jan 4, 2022 Jan 1, 2022 001-38629
4 Open Document Open Filing FORM 4 Dec 20, 2021 Dec 17, 2021 001-38048
4 Open Document Open Filing FORM 4 Dec 9, 2021 Dec 8, 2021 001-38048
4 Open Document Open Filing FORM 4 SUBMISSION May 7, 2021 May 6, 2021 001-32729
5 Open Document Open Filing PRIMARY DOCUMENT Jan 12, 2021 Dec 31, 2020 001-38629
4 Open Document Open Filing PRIMARY DOCUMENT Jan 5, 2021 Jan 1, 2021 001-38629
4 Open Document Open Filing FORM 4 Dec 10, 2020 Dec 9, 2020 001-38048
4 Open Document Open Filing PRIMARY DOCUMENT Jun 17, 2020 Jun 17, 2020 001-38629
4 Open Document Open Filing FORM 4 SUBMISSION May 8, 2020 May 7, 2020 001-32729
4 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2020 Jan 30, 2020 001-38629
3 Open Document Open Filing PRIMARY DOCUMENT Feb 3, 2020 Jan 30, 2020 001-38629
4 Open Document Open Filing PRIMARY DOCUMENT Dec 23, 2019 Dec 19, 2019 001-38048
4 Open Document Open Filing FORM 4 SUBMISSION May 13, 2019 May 9, 2019 001-32729
5 Open Document Open Filing PRIMARY DOCUMENT Jan 11, 2019 Dec 31, 2018 001-38048
4 Open Document Open Filing PRIMARY DOCUMENT Dec 26, 2018 Dec 21, 2018 001-38048
4/A Open Document Open Filing PRIMARY DOCUMENT Dec 26, 2018 Dec 17, 2018 001-38048
4 Open Document Open Filing PRIMARY DOCUMENT Dec 19, 2018 Dec 17, 2018 001-38048
4 Open Document Open Filing 4 Jul 23, 2018 Jul 23, 2018 001-36789
4 Open Document Open Filing PRIMARY DOCUMENT Jun 4, 2018 May 31, 2018 001-36789
4 Open Document Open Filing FORM 4 SUBMISSION May 10, 2018 May 9, 2018 001-32729
4 Open Document Open Filing FORM 4 SUBMISSION Feb 22, 2018 Feb 20, 2018 001-32729
3 Open Document Open Filing FORM 3 SUBMISSION Feb 22, 2018 Feb 20, 2018 001-32729
4 Open Document Open Filing FORM 4 SUBMISSION Feb 20, 2018 Feb 20, 2018 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Feb 8, 2018 Feb 6, 2018 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Jun 2, 2017 May 31, 2017 001-36789
3 Open Document Open Filing FORM 3 SUBMISSION Mar 29, 2017 Mar 29, 2017 001-38048
4 Open Document Open Filing FORM 4 SUBMISSION Mar 14, 2017 Mar 13, 2017 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Mar 9, 2017 Mar 8, 2017 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Feb 17, 2017 Feb 15, 2017 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Oct 11, 2016 Oct 10, 2016 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Jun 17, 2016 Jun 16, 2016 001-12147
3 Open Document Open Filing FORM 3 SUBMISSION Jun 17, 2016 Jun 16, 2016 001-12147
4 Open Document Open Filing FORM 4 SUBMISSION Jun 2, 2016 Jun 1, 2016 001-36789
4 Open Document Open Filing FORM 4 SUBMISSION Jun 5, 2015 Jun 3, 2015 001-36789
4 Open Document Open Filing FORM 4 Feb 18, 2015 Feb 13, 2015 001-35230
4 Open Document Open Filing FORM 4 SUBMISSION Dec 22, 2014 Dec 19, 2014 001-36789
3 Open Document Open Filing FORM 3 SUBMISSION Dec 16, 2014 Dec 16, 2014 001-36789
4 Open Document Open Filing FORM 4 Jul 16, 2014 Jul 14, 2014 001-35230
4 Open Document Open Filing FORM 4 SUBMISSION Mar 10, 2014 May 30, 2013 001-35213
3 Open Document Open Filing FORM 3 SUBMISSION Mar 10, 2014 May 30, 2013 001-35213