Gulf Coast Ultra Deep Royalty Trust SEC filings GULTU
Gulf Coast Ultra Deep Royalty Trust has 240 filings in SEC EDGAR's recent list, going back to Dec 28, 2012. Its latest annual report, Form 10-K, was filed on Mar 25, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 8, 2024 (auditor change).
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 2, 2026 | — |
| 4 | Insider transaction | Dec 2, 2024 | Nov 27, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 2, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2024 | — |
| 3 | Initial insider ownership | Jun 9, 2023 | May 30, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 9, 2023 | — |
| 4 | Insider transaction | Jun 1, 2023 | May 30, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Jun 1, 2023 | — |
| 4 | Insider transaction | Jan 31, 2023 | Jan 27, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 26, 2022 | — |
| 4 | Insider transaction | Oct 19, 2022 | Oct 17, 2022 |
| 4 | Insider transaction | Sep 15, 2022 | Sep 13, 2022 |
| 4 | Insider transaction | Sep 12, 2022 | Sep 8, 2022 |
| 4 | Insider transaction | Sep 8, 2022 | Sep 6, 2022 |
| 4 | Insider transaction | Sep 6, 2022 | Sep 1, 2022 |
| 4 | Insider transaction | Aug 30, 2022 | Aug 26, 2022 |
| 4 | Insider transaction | Aug 26, 2022 | Aug 24, 2022 |
| 4 | Insider transaction | Aug 24, 2022 | Aug 22, 2022 |
| 4 | Insider transaction | Aug 22, 2022 | Aug 18, 2022 |
| 4 | Insider transaction | Aug 17, 2022 | Aug 15, 2022 |
| 4 | Insider transaction | Aug 15, 2022 | Aug 11, 2022 |
| 4 | Insider transaction | Jul 28, 2022 | Jul 26, 2022 |
| 4 | Insider transaction | Jul 25, 2022 | Jul 21, 2022 |
| 4 | Insider transaction | Jul 7, 2022 | Jul 5, 2022 |
| 4 | Insider transaction | Jul 1, 2022 | Jun 29, 2022 |
| 4 | Insider transaction | Jun 29, 2022 | Jun 27, 2022 |
| 4 | Insider transaction | Jun 27, 2022 | Jun 23, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 15, 2022 | Jun 13, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Mar 15, 2019 | — |
| 3 | Initial insider ownership | Mar 15, 2019 | Feb 5, 2019 |
| 4 | Insider transaction | Feb 7, 2019 | Feb 5, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Jan 23, 2018 | — |
| 3 | Initial insider ownership | Jan 22, 2018 | Jan 12, 2018 |
| 4 | Insider transaction | Nov 14, 2017 | Nov 13, 2017 |
| 4 | Insider transaction | Nov 9, 2017 | Nov 8, 2017 |
| 4 | Insider transaction | Nov 8, 2017 | Nov 7, 2017 |
| 4 | Insider transaction | Nov 7, 2017 | Nov 6, 2017 |
| 4 | Insider transaction | Nov 6, 2017 | Nov 3, 2017 |
| 3/A | Form 3/a submission | Feb 14, 2017 | May 30, 2014 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G | Ownership over 5% (passive) | Jan 18, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 28, 2016 | — |
| 4 | Insider transaction | Oct 28, 2016 | Oct 26, 2016 |
| 4 | Insider transaction | Oct 28, 2016 | Oct 27, 2016 |
| SC 13D | Ownership over 5% (active) | Oct 28, 2016 | — |
| 4 | Insider transaction | Sep 28, 2016 | Sep 26, 2016 |
| 4 | Insider transaction | Aug 26, 2016 | Aug 24, 2016 |
| 4 | Insider transaction | Aug 3, 2016 | Aug 1, 2016 |
| 4 | Insider transaction | Jul 14, 2016 | Jul 12, 2016 |
| 4 | Insider transaction | Jul 7, 2016 | Jul 5, 2016 |
| 4 | Insider transaction | Jun 27, 2016 | Jun 23, 2016 |
| 4 | Insider transaction | Jun 21, 2016 | Jun 17, 2016 |
| 4 | Insider transaction | Jun 16, 2016 | Jun 14, 2016 |
| 4 | Insider transaction | Jun 13, 2016 | Jun 9, 2016 |
| 4 | Insider transaction | Mar 10, 2016 | Mar 8, 2016 |
| 4 | Insider transaction | Mar 4, 2016 | Mar 2, 2016 |
| 4 | Insider transaction | Feb 26, 2016 | Feb 24, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2016 | — |
| 4 | Insider transaction | Feb 4, 2016 | Feb 2, 2016 |
| 4 | Insider transaction | Feb 2, 2016 | Feb 1, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2016 | — |
| 4 | Insider transaction | Jan 4, 2016 | Dec 31, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 23, 2015 | — |
| 4 | Insider transaction | Dec 23, 2015 | Dec 22, 2015 |
| 4 | Insider transaction | Dec 18, 2015 | Dec 17, 2015 |
| 4 | Insider transaction | Dec 17, 2015 | Dec 16, 2015 |
| 4 | Insider transaction | Dec 16, 2015 | Dec 15, 2015 |
| 4/A | Primary document | Dec 4, 2015 | Oct 12, 2015 |
| 4 | Insider transaction | Dec 3, 2015 | Dec 1, 2015 |
| 4/A | Form 4/a submission | Nov 17, 2015 | Nov 9, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 13, 2015 | — |
| 4 | Insider transaction | Nov 10, 2015 | Nov 9, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 5, 2015 | — |
| 3 | Initial insider ownership | Nov 4, 2015 | Nov 2, 2015 |
| 4 | Insider transaction | Oct 14, 2015 | Oct 12, 2015 |
| SC 13G | Ownership over 5% (passive) | Oct 14, 2015 | — |
| 4 | Insider transaction | Aug 31, 2015 | Aug 27, 2015 |
| 4 | Insider transaction | Aug 26, 2015 | Aug 24, 2015 |
| 4 | Insider transaction | Aug 21, 2015 | Aug 19, 2015 |
| 3 | Initial insider ownership | Aug 7, 2015 | Jul 31, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 7, 2015 | — |
| 4 | Insider transaction | Jul 30, 2015 | Jul 27, 2015 |
| 4 | Insider transaction | Jul 14, 2015 | Jul 10, 2015 |
| 4 | Insider transaction | Jul 6, 2015 | Jul 1, 2015 |
| 4 | Insider transaction | Feb 20, 2015 | Feb 18, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 17, 2015 | — |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2015 | — |
| 3 | Initial insider ownership | Feb 5, 2015 | Feb 3, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2015 | — |
| 3 | Initial insider ownership | May 29, 2014 | May 30, 2014 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2014 | — |
| 4 | Insider transaction | Jan 24, 2014 | Jan 22, 2014 |
| SC 13G | Ownership over 5% (passive) | Jan 22, 2014 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 6, 2014 | — |
| 4 | Insider transaction | Jan 6, 2014 | Jan 2, 2014 |
| 4 | Insider transaction | Dec 12, 2013 | Dec 10, 2013 |
| 4 | Insider transaction | Nov 26, 2013 | Nov 22, 2013 |
| 4 | Insider transaction | Sep 24, 2013 | Sep 20, 2013 |
| 4 | Insider transaction | Jul 19, 2013 | Jul 17, 2013 |
| 3 | Initial insider ownership | Jun 17, 2013 | Jun 11, 2013 |
| SC 13G | Ownership over 5% (passive) | Jun 17, 2013 | — |
Showing 107 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Crude Petroleum & Natural Gas (SIC 1311)
- Listed as
- GULTU (OTC)
- Headquarters
- Houston, TX
- SEC CIK
- 1565146
Other Crude Petroleum & Natural Gas companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.