Moleculin Biotech, Inc. SEC filings MBRX
Moleculin Biotech, Inc. has 838 filings in SEC EDGAR's recent list, going back to Dec 4, 2015. Its latest annual report, Form 10-K, was filed on Mar 18, 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 Nov 4, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 16, 2026 | Oct 15, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Oct 15, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Oct 15, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Aug 25, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Aug 25, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 10, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 6, 2026 | — |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 5, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 20, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 20, 2026 |
| 4 | Insider transaction | Jun 24, 2026 | Jun 20, 2026 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 14, 2025 | Nov 12, 2025 |
| 4 | Insider transaction | Nov 6, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 6, 2025 | Nov 4, 2025 |
| 4 | Insider transaction | Nov 6, 2025 | Nov 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Jun 23, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| 4 | Insider transaction | Jun 18, 2025 | Jun 16, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 14, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Nov 4, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Oct 25, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Oct 25, 2024 |
| 4 | Insider transaction | Nov 6, 2024 | Oct 25, 2024 |
| 4 | Insider transaction | Jul 5, 2024 | Jul 2, 2024 |
| 4 | Insider transaction | Jun 25, 2024 | Jun 22, 2024 |
| 4 | Insider transaction | Jun 25, 2024 | Jun 22, 2024 |
| 4 | Insider transaction | Jun 25, 2024 | Jun 22, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 20, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 16, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 16, 2024 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2024 | — |
| 4 | Insider transaction | Dec 27, 2023 | Dec 26, 2023 |
| 4 | Insider transaction | Dec 27, 2023 | Dec 26, 2023 |
| 4 | Insider transaction | Dec 27, 2023 | Dec 26, 2023 |
| 4 | Insider transaction | Jul 13, 2023 | Jul 11, 2023 |
| 4 | Insider transaction | Jul 5, 2023 | Jul 2, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 22, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 22, 2023 |
| 4 | Insider transaction | Jun 26, 2023 | Jun 22, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 20, 2023 |
| 4 | Insider transaction | Jun 20, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | Jun 20, 2023 | Jun 16, 2023 |
| 4 | Insider transaction | May 26, 2023 | May 25, 2023 |
| 4 | Insider transaction | May 26, 2023 | May 25, 2023 |
| 4 | Insider transaction | May 26, 2023 | May 25, 2023 |
| 4 | Insider transaction | May 26, 2023 | May 25, 2023 |
| 4 | Insider transaction | May 26, 2023 | May 25, 2023 |
| 4 | Insider transaction | Nov 28, 2022 | Nov 25, 2022 |
| 4 | Insider transaction | Nov 23, 2022 | Nov 21, 2022 |
| 4 | Insider transaction | Nov 18, 2022 | Nov 16, 2022 |
| 4/A | Form 4/a | Jul 15, 2022 | Jul 2, 2022 |
| 4/A | Form 4/a | Jul 15, 2022 | Jul 11, 2022 |
| 4/A | Form 4/a | Jul 15, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jul 13, 2022 | Jul 11, 2022 |
| 4 | Insider transaction | Jul 6, 2022 | Jul 2, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 22, 2022 | Jun 20, 2022 |
| 4 | Insider transaction | Jun 21, 2022 | Jun 16, 2022 |
| 4 | Insider transaction | Jun 21, 2022 | Jun 16, 2022 |
| 4 | Insider transaction | Mar 2, 2022 | Mar 1, 2022 |
| 3 | Initial insider ownership | Mar 2, 2022 | Mar 1, 2022 |
| 4 | Insider transaction | Jul 12, 2021 | Jul 11, 2021 |
| 4 | Insider transaction | Jul 6, 2021 | Jul 2, 2021 |
| 4 | Insider transaction | Jun 21, 2021 | Jun 16, 2021 |
| 4 | Insider transaction | Jun 21, 2021 | Jun 16, 2021 |
| 4 | Insider transaction | Jun 21, 2021 | Jun 16, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| 4 | Insider transaction | Jun 9, 2021 | Jun 7, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 20, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 4, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Nov 13, 2020 | — |
| 4 | Insider transaction | Oct 5, 2020 | Oct 2, 2020 |
| 3 | Initial insider ownership | Oct 5, 2020 | Oct 2, 2020 |
| 4 | Insider transaction | Aug 24, 2020 | Aug 20, 2020 |
| 4 | Insider transaction | Jul 14, 2020 | Jul 13, 2020 |
| 4 | Insider transaction | Jul 7, 2020 | Jul 2, 2020 |
| 4 | Insider transaction | Jul 7, 2020 | Jul 2, 2020 |
| 4 | Insider transaction | Jul 7, 2020 | Jul 2, 2020 |
| 4 | Insider transaction | Jun 17, 2020 | Jun 15, 2020 |
| 4 | Insider transaction | Jun 17, 2020 | Jun 15, 2020 |
| 4 | Insider transaction | Jun 17, 2020 | Jun 15, 2020 |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Feb 7, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 8, 2020 | — |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4/A | Form 4/a | Jul 15, 2019 | Jun 6, 2018 |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4 | Insider transaction | Jul 15, 2019 | Jul 11, 2019 |
| 4 | Insider transaction | May 24, 2019 | May 22, 2019 |
| 4 | Insider transaction | May 24, 2019 | May 22, 2019 |
| 4 | Insider transaction | May 24, 2019 | May 22, 2019 |
| SC 13G | Ownership over 5% (passive) | May 2, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Apr 23, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Apr 8, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 3, 2019 | — |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Jun 8, 2018 | Jun 6, 2018 |
| SC 13G | Ownership over 5% (passive) | Feb 23, 2018 | — |
| SC 13G | Ownership over 5% (passive) | Feb 21, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 8, 2018 | — |
| 4 | Insider transaction | Oct 5, 2017 | Oct 3, 2017 |
| 4 | Insider transaction | Oct 5, 2017 | Oct 3, 2017 |
| 4 | Insider transaction | Oct 5, 2017 | Oct 3, 2017 |
| 4 | Insider transaction | Aug 18, 2017 | Aug 16, 2017 |
| 4 | Insider transaction | Aug 18, 2017 | Aug 16, 2017 |
| 4 | Insider transaction | Jul 26, 2017 | Jul 24, 2017 |
| 4 | Insider transaction | Jul 26, 2017 | Jul 24, 2017 |
| 4 | Insider transaction | Jul 26, 2017 | Jul 24, 2017 |
| 3 | Initial insider ownership | Jul 26, 2017 | Jul 24, 2017 |
| 4 | Insider transaction | May 12, 2017 | May 11, 2017 |
| 4 | Insider transaction | May 5, 2017 | May 5, 2017 |
| 4 | Insider transaction | Apr 28, 2017 | Apr 28, 2017 |
| 4 | Insider transaction | Apr 26, 2017 | Apr 25, 2017 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2017 | — |
| 4 | Insider transaction | Sep 27, 2016 | Sep 23, 2016 |
| 4 | Insider transaction | Sep 27, 2016 | Sep 23, 2016 |
| 4 | Insider transaction | Sep 27, 2016 | Sep 23, 2016 |
| 4 | Insider transaction | Aug 23, 2016 | Aug 19, 2016 |
| 3 | Initial insider ownership | Aug 23, 2016 | Aug 19, 2016 |
| 3 | Initial insider ownership | Aug 8, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Aug 8, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Jun 7, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Jun 7, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Jun 7, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Jun 7, 2016 | Jun 2, 2016 |
| 3 | Initial insider ownership | Jun 7, 2016 | Jun 2, 2016 |
Showing 166 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.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- MBRX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1659617
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.