Akari Therapeutics Plc SEC filings AKTX
Akari Therapeutics Plc has 743 filings in SEC EDGAR's recent list, going back to Apr 13, 2012. Its latest annual report, Form 10-K, was filed on Mar 30, 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 Oct 30, 2026 (shareholder vote results). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 14, 2026 | Oct 12, 2026 |
| 3 | Initial insider ownership | Oct 14, 2026 | Oct 12, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 29, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| 4 | Insider transaction | Aug 5, 2026 | Jul 16, 2026 |
| 4 | Insider transaction | Jul 17, 2026 | Jul 7, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 24, 2026 |
| 4 | Insider transaction | Jun 25, 2026 | Jun 24, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 8, 2026 | — |
| 4 | Insider transaction | Mar 16, 2026 | Dec 16, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 4, 2026 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 4, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 4, 2026 | — |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Dec 18, 2025 | Dec 16, 2025 |
| 4 | Insider transaction | Nov 4, 2025 | Nov 1, 2025 |
| 4 | Insider transaction | Oct 24, 2025 | Oct 22, 2025 |
| 3 | Initial insider ownership | Oct 24, 2025 | Oct 22, 2025 |
| 4 | Insider transaction | Aug 29, 2025 | Aug 21, 2025 |
| 4 | Insider transaction | Jun 25, 2025 | Jun 23, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 17, 2025 |
| 4 | Insider transaction | Jun 16, 2025 | Jun 12, 2025 |
| 4 | Insider transaction | Jun 12, 2025 | Jun 10, 2025 |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 24, 2025 | Mar 20, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Feb 14, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 14, 2025 | — |
| 4/A | Filing | Feb 7, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 13, 2025 | Jan 10, 2025 |
| 4 | Insider transaction | Jan 10, 2025 | Jan 9, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Jan 7, 2025 | Jan 3, 2025 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 30, 2024 | Dec 27, 2024 |
| 4 | Insider transaction | Dec 27, 2024 | Dec 26, 2024 |
| 4 | Insider transaction | Dec 27, 2024 | Dec 24, 2024 |
| 4 | Insider transaction | Dec 26, 2024 | Dec 23, 2024 |
| 4 | Insider transaction | Dec 26, 2024 | Dec 23, 2024 |
| 3 | Initial insider ownership | Dec 26, 2024 | Dec 16, 2024 |
| 4 | Insider transaction | Dec 26, 2024 | Dec 20, 2024 |
| 3 | Initial insider ownership | Dec 20, 2024 | Dec 16, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 6, 2024 | — |
| 4 | Insider transaction | Dec 3, 2024 | Nov 30, 2024 |
| 4 | Insider transaction | Dec 3, 2024 | Dec 2, 2024 |
| 3 | Initial insider ownership | Nov 22, 2024 | Nov 14, 2024 |
| 3 | Initial insider ownership | Nov 22, 2024 | Nov 14, 2024 |
| 3 | Initial insider ownership | Nov 22, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| 4 | Insider transaction | Nov 1, 2024 | Oct 31, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Sep 18, 2024 | Sep 17, 2024 |
| 3 | Initial insider ownership | Sep 18, 2024 | Sep 17, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 30, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| 4 | Insider transaction | Jul 2, 2024 | Jun 28, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 20, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jun 18, 2024 | — |
| SC 13D | Ownership over 5% (active) | Jun 7, 2024 | — |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
| 4 | Insider transaction | May 3, 2024 | May 1, 2024 |
| 4 | Insider transaction | Apr 30, 2024 | Apr 26, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Jan 4, 2024 | — |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| 3 | Initial insider ownership | Jan 2, 2024 | Jan 1, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 20, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Apr 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 14, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 18, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Aug 11, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Jul 2, 2020 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 30, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2020 | — |
| SC 13G | Ownership over 5% (passive) | Oct 4, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Aug 19, 2019 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 26, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| 4 | Insider transaction | Jun 30, 2016 | Jun 29, 2016 |
| 4 | Insider transaction | Jun 30, 2016 | Jun 29, 2016 |
| 4 | Insider transaction | Jun 30, 2016 | Jun 29, 2016 |
| 4 | Insider transaction | Jun 30, 2016 | Jun 29, 2016 |
| 4 | Insider transaction | Jun 30, 2016 | Jun 29, 2016 |
| 3 | Initial insider ownership | Jun 30, 2016 | Jun 29, 2016 |
| 4 | Insider transaction | Apr 26, 2016 | Apr 22, 2016 |
| 3 | Initial insider ownership | Apr 26, 2016 | Apr 20, 2016 |
| 4 | Insider transaction | Mar 25, 2016 | Mar 23, 2016 |
| 3 | Initial insider ownership | Mar 25, 2016 | Mar 23, 2016 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 8, 2016 | — |
| 4 | Insider transaction | Nov 25, 2015 | Nov 25, 2015 |
| 4 | Insider transaction | Nov 25, 2015 | Nov 25, 2015 |
| 4 | Insider transaction | Nov 25, 2015 | Nov 25, 2015 |
| 4 | Insider transaction | Nov 25, 2015 | Nov 25, 2015 |
| SC 13D | Ownership over 5% (active) | Sep 29, 2015 | — |
| 4 | Insider transaction | Sep 23, 2015 | Sep 21, 2015 |
| 4 | Insider transaction | Sep 23, 2015 | Sep 21, 2015 |
| 4 | Insider transaction | Sep 23, 2015 | Sep 21, 2015 |
| 4 | Insider transaction | Sep 23, 2015 | Sep 21, 2015 |
| 3 | Initial insider ownership | Sep 23, 2015 | Sep 18, 2015 |
| 3 | Initial insider ownership | Sep 23, 2015 | Sep 18, 2015 |
| 3 | Initial insider ownership | Sep 23, 2015 | Sep 18, 2015 |
| 3 | Initial insider ownership | Sep 23, 2015 | Sep 18, 2015 |
| 3 | Initial insider ownership | Sep 23, 2015 | Sep 18, 2015 |
| 4 | Insider transaction | Sep 22, 2015 | Sep 18, 2015 |
| 4 | Insider transaction | Sep 22, 2015 | Sep 21, 2015 |
| 4 | Insider transaction | Sep 22, 2015 | Sep 21, 2015 |
| SC 13G | Ownership over 5% (passive) | Sep 21, 2015 | — |
| SC 13G | Ownership over 5% (passive) | Aug 28, 2015 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 10, 2015 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 17, 2015 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 17, 2015 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 17, 2015 | — |
| 4 | Insider transaction | Jan 12, 2015 | Jan 8, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 9, 2015 | — |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| 3 | Initial insider ownership | Jan 2, 2015 | Jan 1, 2015 |
| SC 13G | Ownership over 5% (passive) | Nov 24, 2014 | — |
| 4 | Insider transaction | Apr 23, 2014 | Mar 6, 2014 |
| 4 | Insider transaction | Apr 17, 2014 | Apr 14, 2014 |
| 4 | Insider transaction | Apr 11, 2014 | Apr 9, 2014 |
| 4 | Insider transaction | Apr 8, 2014 | Apr 4, 2014 |
| 4 | Insider transaction | Apr 2, 2014 | Mar 31, 2014 |
| 4 | Insider transaction | Mar 27, 2014 | Mar 25, 2014 |
| 4 | Insider transaction | Mar 24, 2014 | Mar 20, 2014 |
| 3 | Initial insider ownership | Mar 14, 2014 | Mar 6, 2014 |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 28, 2014 | — |
| SC 13G | Ownership over 5% (passive) | Jan 6, 2014 | — |
| SC 13G | Ownership over 5% (passive) | Dec 10, 2013 | — |
| SC 13G | Ownership over 5% (passive) | Oct 4, 2013 | — |
| SC 13G | Ownership over 5% (passive) | Sep 24, 2013 | — |
Showing 180 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- AKTX (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- United Kingdom
- Headquarters
- Tampa, FL
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1541157
- Former names
- Celsus Therapeutics Plc. (until Sep 15, 2015); Morria Biopharmaceuticals PLC (until Jun 20, 2013)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.