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 |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 2, 2026 | — |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 10-K | Annual report | Mar 25, 2026 | Dec 31, 2025 |
| 10-Q | Quarterly report | Nov 12, 2025 | Sep 30, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 10-K | Annual report | Mar 28, 2025 | Dec 31, 2024 |
| 4 | Insider transaction | Dec 2, 2024 | Nov 27, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 2, 2024 | — |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| 10-Q | Quarterly report | Aug 14, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Auditor change
|
Aug 8, 2024 | Aug 2, 2024 |
| 10-Q | Quarterly report | May 13, 2024 | Mar 31, 2024 |
| 10-K | Annual report | Mar 28, 2024 | Dec 31, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 1, 2024 | — |
| 10-Q | Quarterly report | Nov 15, 2023 | Sep 30, 2023 |
| NT 10-Q | Filing | Nov 15, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2023 | Oct 16, 2023 |
| 10-Q | Quarterly report | Aug 11, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Jul 14, 2023 | Jul 14, 2023 |
| 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 | — |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 14, 2023 | Apr 14, 2023 |
| 10-K | Annual report | Mar 15, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Other events
|
Feb 7, 2023 | Feb 1, 2023 |
| 4 | Insider transaction | Jan 31, 2023 | Jan 27, 2023 |
| 8-K |
Current report
Results of operations
|
Jan 13, 2023 | Jan 13, 2023 |
| 10-Q | Quarterly report | Nov 10, 2022 | Sep 30, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Oct 26, 2022 | — |
| 4 | Insider transaction | Oct 19, 2022 | Oct 17, 2022 |
| 8-K |
Current report
Results of operations
|
Oct 14, 2022 | Oct 14, 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 |
| 10-Q | Quarterly report | Aug 12, 2022 | Jun 30, 2022 |
| 4 | Insider transaction | Jul 28, 2022 | Jul 26, 2022 |
| 4 | Insider transaction | Jul 25, 2022 | Jul 21, 2022 |
| 8-K |
Current report
Results of operations
|
Jul 14, 2022 | Jul 14, 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 |
| 10-Q | Quarterly report | May 13, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
Apr 14, 2022 | Apr 14, 2022 |
| 10-K | Annual report | Mar 22, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 14, 2022 | Jan 14, 2022 |
| PX14A6G | Letter | Nov 29, 2021 | — |
| 10-Q | Quarterly report | Nov 12, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Oct 15, 2021 | Oct 15, 2021 |
| 10-Q | Quarterly report | Aug 12, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Jul 16, 2021 | Jul 16, 2021 |
| 10-Q | Quarterly report | May 13, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
Apr 16, 2021 | Apr 16, 2021 |
| 10-K | Annual report | Mar 23, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 15, 2021 | Jan 15, 2021 |
| 10-Q | Quarterly report | Nov 12, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2020 | Oct 16, 2020 |
| PX14A6G | Letter to unitholders | Oct 8, 2020 | — |
| 10-Q | Quarterly report | Aug 12, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Jul 17, 2020 | Jul 17, 2020 |
| 10-Q | Quarterly report | May 8, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 16, 2020 | Apr 16, 2020 |
| 10-K | Annual report | Mar 20, 2020 | Dec 31, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2020 | — |
| 8-K |
Current report
Results of operations
|
Jan 17, 2020 | Jan 17, 2020 |
| 10-Q | Quarterly report | Nov 7, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2019 | Oct 16, 2019 |
| 10-Q | Quarterly report | Aug 13, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 17, 2019 | Jul 17, 2019 |
| 10-Q | Quarterly report | May 9, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2019 | Apr 17, 2019 |
| 10-K | Annual report | Mar 21, 2019 | Dec 31, 2018 |
| SC 13G | Ownership over 5% (passive) | Mar 15, 2019 | — |
| 3 | Initial insider ownership | Mar 15, 2019 | Feb 5, 2019 |
| 8-K |
Current report
Other events
|
Feb 11, 2019 | Feb 5, 2019 |
| 4 | Insider transaction | Feb 7, 2019 | Feb 5, 2019 |
| 8-K |
Current report
Results of operations
|
Jan 17, 2019 | Jan 17, 2019 |
| 10-Q | Quarterly report | Nov 8, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Oct 17, 2018 | Oct 17, 2018 |
| 10-Q | Quarterly report | Aug 9, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Jul 18, 2018 | Jul 18, 2018 |
| 10-Q | Quarterly report | May 10, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations
|
Apr 17, 2018 | Apr 17, 2018 |
| 10-K | Annual report | Mar 23, 2018 | Dec 31, 2017 |
| 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 |
| 8-K |
Current report
Results of operations
|
Jan 17, 2018 | Jan 17, 2018 |
| 4 | Insider transaction | Nov 14, 2017 | Nov 13, 2017 |
| 10-Q | Quarterly report | Nov 13, 2017 | Sep 30, 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 |
| 8-K |
Current report
Results of operations
|
Oct 16, 2017 | Oct 16, 2017 |
| 10-Q | Quarterly report | Aug 11, 2017 | Jun 30, 2017 |
| 10-Q | Quarterly report | May 12, 2017 | Mar 31, 2017 |
| 10-K | Annual report | Mar 10, 2017 | Dec 31, 2016 |
| 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 | — |
| 10-Q | Quarterly report | Nov 9, 2016 | Sep 30, 2016 |
| 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 |
| 10-Q | Quarterly report | Aug 5, 2016 | Jun 30, 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 |
| 10-Q | Quarterly report | May 10, 2016 | Mar 31, 2016 |
| 10-K | Annual report | Mar 11, 2016 | Dec 31, 2015 |
| 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 |
| 10-Q | Quarterly report | Nov 6, 2015 | Sep 30, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 5, 2015 | — |
| 3 | Initial insider ownership | Nov 4, 2015 | Nov 2, 2015 |
| 8-K |
Current report
Listing notice, Regulation FD disclosure
|
Oct 23, 2015 | Oct 22, 2015 |
| 25-NSE | Delisting notice | Oct 23, 2015 | — |
| 4 | Insider transaction | Oct 14, 2015 | Oct 12, 2015 |
| SC 13G | Ownership over 5% (passive) | Oct 14, 2015 | — |
| 8-K |
Current report
Listing notice
|
Oct 8, 2015 | Oct 7, 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 | — |
| 10-Q | Quarterly report | Aug 7, 2015 | Jun 30, 2015 |
| 4 | Insider transaction | Jul 30, 2015 | Jul 27, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 23, 2015 | Jul 23, 2015 |
| 4 | Insider transaction | Jul 14, 2015 | Jul 10, 2015 |
| 4 | Insider transaction | Jul 6, 2015 | Jul 1, 2015 |
| 10-Q | Quarterly report | May 8, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Listing notice
|
Apr 10, 2015 | Apr 8, 2015 |
| 10-K | Annual report | Mar 16, 2015 | Dec 31, 2014 |
| 8-K |
Current report
Other events
|
Feb 20, 2015 | Feb 20, 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 | — |
| 8-K |
Current report
Other events
|
Dec 31, 2014 | Dec 24, 2014 |
| 10-Q | Quarterly report | Nov 13, 2014 | Sep 30, 2014 |
| 10-Q | Quarterly report | Aug 12, 2014 | Jun 30, 2014 |
| CERTNAS | Auto-generated paper document | May 30, 2014 | — |
| 3 | Initial insider ownership | May 29, 2014 | May 30, 2014 |
| 8-K |
Current report
Other events
|
May 29, 2014 | May 22, 2014 |
| 10-Q | Quarterly report | May 14, 2014 | Mar 31, 2014 |
| 8-A12B/A | Amendment no. 1 to form 8-a | May 13, 2014 | — |
| 8-A12B | Filing | Mar 31, 2014 | — |
| 10-K | Annual report | Mar 31, 2014 | Dec 31, 2013 |
| 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 |
| EFFECT | Filing | Dec 6, 2013 | — |
| POS AM | Filing | Dec 3, 2013 | — |
| 4 | Insider transaction | Nov 26, 2013 | Nov 22, 2013 |
| 424B3 | Prospectus | Nov 13, 2013 | — |
| 10-Q | Quarterly report | Nov 13, 2013 | Sep 30, 2013 |
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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.