Marker Therapeutics, Inc. SEC filings MRKR
Marker Therapeutics, Inc. has 904 filings in SEC EDGAR's recent list, going back to Sep 3, 1999. Its latest annual report, Form ARS, was filed on Mar 20, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 19, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Nov 19, 2025 | Nov 17, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 17, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Nov 14, 2025 | — |
| 4 | Insider transaction | Nov 4, 2025 | Oct 31, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Oct 31, 2025 |
| 3 | Initial insider ownership | Nov 4, 2025 | Oct 31, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 20, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 19, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Aug 18, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| 4 | Insider transaction | Feb 14, 2025 | Feb 12, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| 4 | Insider transaction | Dec 26, 2024 | Dec 23, 2024 |
| 4 | Insider transaction | Dec 23, 2024 | Dec 23, 2024 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 23, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 17, 2024 | — |
| 3 | Initial insider ownership | Jul 5, 2023 | Jun 30, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Mar 16, 2021 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | Jun 8, 2023 | Jun 6, 2023 |
| 4 | Insider transaction | May 11, 2023 | May 10, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 3, 2023 | — |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | Mar 1, 2023 | Feb 27, 2023 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | May 26, 2022 | May 24, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Mar 28, 2022 | Mar 24, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Feb 22, 2022 | Feb 17, 2022 |
| 4 | Insider transaction | Dec 9, 2021 | Dec 8, 2021 |
| 3 | Initial insider ownership | Dec 9, 2021 | Dec 8, 2021 |
| 4 | Insider transaction | Jun 10, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 10, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 10, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 10, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | Jun 10, 2021 | Jun 8, 2021 |
| 4 | Insider transaction | May 20, 2021 | May 18, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 26, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 24, 2021 | — |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| 4 | Insider transaction | Mar 18, 2021 | Mar 16, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Mar 15, 2021 | — |
| 4 | Insider transaction | Feb 24, 2021 | Feb 15, 2020 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 11, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 4 | Insider transaction | Feb 12, 2021 | Feb 10, 2021 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 5 | Annual insider ownership | Feb 12, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Nov 13, 2020 | Nov 9, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 13, 2020 | — |
| 4 | Insider transaction | Jun 19, 2020 | Jun 16, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 18, 2020 | — |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Mar 10, 2020 |
| 3 | Initial insider ownership | Mar 12, 2020 | Mar 10, 2020 |
| 3 | Initial insider ownership | Mar 12, 2020 | Mar 10, 2020 |
| 4 | Insider transaction | Feb 20, 2020 | Feb 18, 2020 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 20, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| 4 | Insider transaction | Aug 19, 2019 | Aug 15, 2019 |
| 3 | Initial insider ownership | Aug 19, 2019 | Aug 15, 2019 |
| 4 | Insider transaction | Aug 15, 2019 | Aug 14, 2019 |
| 4 | Insider transaction | Aug 8, 2019 | Aug 6, 2019 |
| 3 | Initial insider ownership | Aug 8, 2019 | Aug 6, 2019 |
| 3 | Initial insider ownership | May 15, 2019 | May 9, 2019 |
| 4 | Insider transaction | May 13, 2019 | May 9, 2019 |
| 4 | Insider transaction | May 13, 2019 | May 9, 2019 |
| 4 | Insider transaction | May 13, 2019 | May 9, 2019 |
| 4 | Insider transaction | May 13, 2019 | May 9, 2019 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2019 | — |
| SC 13D | Ownership over 5% (active) | Feb 14, 2019 | — |
| SC 13D | Ownership over 5% (active) | Feb 14, 2019 | — |
| SC 13D | Ownership over 5% (active) | Feb 14, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 4, 2019 | — |
| 3 | Initial insider ownership | Dec 28, 2018 | Dec 21, 2018 |
| 3 | Initial insider ownership | Dec 28, 2018 | Dec 21, 2018 |
| 3 | Initial insider ownership | Dec 28, 2018 | Dec 21, 2018 |
| 4 | Insider transaction | Nov 29, 2018 | Nov 27, 2018 |
| 3 | Initial insider ownership | Nov 29, 2018 | Nov 27, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | Nov 8, 2018 | — |
| SC 13D | Ownership over 5% (active) | Oct 25, 2018 | — |
| 4 | Insider transaction | Oct 23, 2018 | Oct 19, 2018 |
| 4 | Insider transaction | Oct 23, 2018 | Oct 19, 2018 |
| 4 | Insider transaction | Oct 23, 2018 | Oct 19, 2018 |
| SC 13D | Ownership over 5% (active) | Oct 19, 2018 | — |
| 4 | Insider transaction | Oct 19, 2018 | Oct 17, 2018 |
| 4 | Insider transaction | Oct 19, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 19, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 19, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 19, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 3 | Initial insider ownership | Oct 18, 2018 | Oct 17, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 16, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 16, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 16, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 16, 2018 |
| 4 | Insider transaction | Oct 17, 2018 | Oct 16, 2018 |
| 4 | Insider transaction | Oct 10, 2018 | Oct 9, 2018 |
| 4 | Insider transaction | Sep 25, 2018 | Sep 22, 2018 |
| 4 | Insider transaction | May 16, 2018 | May 14, 2018 |
| SC 13D/A | Amended ownership over 5% (active) | May 16, 2018 | — |
| SC 13D | Ownership over 5% (active) | Apr 4, 2018 | — |
| 4 | Insider transaction | Mar 2, 2018 | Feb 28, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2018 | — |
| 4 | Insider transaction | Sep 26, 2017 | Sep 22, 2017 |
| 4 | Insider transaction | Sep 25, 2017 | Sep 22, 2017 |
| 3 | Initial insider ownership | Sep 25, 2017 | Sep 22, 2017 |
| 4 | Insider transaction | Aug 30, 2017 | Aug 29, 2017 |
| 4 | Insider transaction | Aug 30, 2017 | Aug 29, 2017 |
| 4 | Insider transaction | Aug 30, 2017 | Aug 29, 2017 |
| 4 | Insider transaction | Aug 30, 2017 | Aug 29, 2017 |
| 4 | Insider transaction | Aug 30, 2017 | Aug 29, 2017 |
| SC 13D | Ownership over 5% (active) | Aug 25, 2017 | — |
| 4 | Insider transaction | Mar 13, 2017 | Mar 9, 2017 |
| 4 | Insider transaction | Mar 13, 2017 | Mar 9, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 6, 2017 | — |
| 4 | Insider transaction | Dec 14, 2016 | Dec 12, 2016 |
| 4 | Insider transaction | Nov 30, 2016 | Nov 28, 2016 |
| 3 | Initial insider ownership | Nov 30, 2016 | Nov 28, 2016 |
| 4 | Insider transaction | Aug 25, 2016 | Aug 25, 2016 |
| 3 | Initial insider ownership | Aug 25, 2016 | Aug 25, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 19, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Aug 12, 2016 | — |
| 4 | Insider transaction | Aug 12, 2016 | Aug 10, 2016 |
| 4 | Insider transaction | Jul 19, 2016 | Jul 18, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 29, 2016 | — |
| 4 | Insider transaction | Jan 28, 2016 | Jan 26, 2016 |
| 3 | Initial insider ownership | Jan 28, 2016 | Jan 26, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 19, 2016 | — |
| 4 | Insider transaction | Nov 16, 2015 | Nov 12, 2015 |
| 4 | Insider transaction | Nov 16, 2015 | Nov 12, 2015 |
| 4 | Insider transaction | Nov 16, 2015 | Nov 12, 2015 |
| 4 | Insider transaction | Nov 13, 2015 | Feb 26, 2014 |
| 3 | Initial insider ownership | Nov 13, 2015 | Mar 20, 2013 |
Showing 200 filings, the most recent 200. 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
- MRKR (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1094038
- Former names
- TAPIMMUNE INC. (until Oct 17, 2018); TAPIMMUNE INC (until Jun 29, 2017); GENEMAX CORP (until Jun 28, 2007); EDUVERSE COM (until Jun 17, 2002)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.