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 |
|---|---|---|---|
| S-8 | Employee stock plan registration | Oct 30, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
Oct 30, 2026 | Oct 28, 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 16, 2026 | Aug 18, 2026 |
| 4 | Insider transaction | Oct 14, 2026 | Oct 12, 2026 |
| 3 | Initial insider ownership | Oct 14, 2026 | Oct 12, 2026 |
| DEF 14A | Proxy statement | Oct 1, 2026 | Oct 1, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 29, 2026 |
| 8-K |
Current report
Officer or director change
|
Oct 1, 2026 | Sep 29, 2026 |
| 4 | Insider transaction | Aug 19, 2026 | Aug 17, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2026 | Aug 13, 2026 |
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 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 |
| EFFECT | Filing | Jul 13, 2026 | — |
| S-3/A | Filing | Jul 10, 2026 | — |
| S-3/A | Filing | Jul 8, 2026 | — |
| EFFECT | Filing | Jul 7, 2026 | — |
| 8-K |
Current report
Shareholder vote results
|
Jul 2, 2026 | Jun 30, 2026 |
| S-3 | Shelf registration | Jul 2, 2026 | — |
| 8-K |
Current report
Material agreement
|
Jun 26, 2026 | Jun 23, 2026 |
| S-1/A | Amended registration statement | Jun 26, 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 | — |
| DEF 14A | Proxy statement | Jun 4, 2026 | Jun 4, 2026 |
| D | Filing | Jun 3, 2026 | — |
| PRE 14A | Preliminary proxy statement | May 22, 2026 | May 22, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
May 22, 2026 | May 20, 2026 |
| RW | Filing | May 21, 2026 | — |
| 10-Q | Quarterly report | May 19, 2026 | Mar 31, 2026 |
| NT 10-Q | Filing | May 18, 2026 | Mar 31, 2026 |
| S-1 | Registration statement | May 8, 2026 | — |
| EFFECT | Filing | Apr 15, 2026 | — |
| POS AM | Filing | Apr 10, 2026 | — |
| DRS | Filing | Apr 2, 2026 | — |
| F-6/A | Filing | Mar 31, 2026 | — |
| 10-K | Annual report | Mar 30, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Change to shareholder rights, Regulation FD disclosure
|
Mar 17, 2026 | Mar 17, 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 | — |
| 8-K |
Current report
Shareholder vote results
|
Mar 2, 2026 | Mar 2, 2026 |
| DEF 14A | Proxy statement | Feb 2, 2026 | Feb 2, 2026 |
| EFFECT | Filing | Jan 29, 2026 | — |
| UPLOAD | Letter from the SEC | Jan 27, 2026 | — |
| CORRESP | Letter to the SEC | Jan 27, 2026 | — |
| S-1 | Registration statement | Jan 23, 2026 | — |
| PRE 14A | Preliminary proxy statement | Jan 22, 2026 | Jan 22, 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 |
| 8-K |
Current report
Material agreement, Agreement ended, Unregistered share sale, Regulation FD disclosure
|
Dec 17, 2025 | Dec 16, 2025 |
| 424B5 | Prospectus supplement | Dec 17, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Dec 16, 2025 | Dec 15, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 8, 2025 | Dec 8, 2025 |
| 424B3 | Prospectus | Dec 5, 2025 | — |
| EFFECT | Filing | Dec 2, 2025 | — |
| CORRESP | Letter to the SEC | Dec 1, 2025 | — |
| 8-K |
Current report
Listing notice
|
Nov 26, 2025 | Nov 24, 2025 |
| DEF 14A | Proxy statement | Nov 17, 2025 | Nov 17, 2025 |
| S-1 | Registration statement | Nov 17, 2025 | — |
| 10-Q | Quarterly report | Nov 13, 2025 | Sep 30, 2025 |
| PRE 14A | Preliminary proxy statement | Nov 7, 2025 | Nov 7, 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 |
| D | Filing | Oct 24, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Oct 23, 2025 | Oct 22, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Oct 16, 2025 | Oct 14, 2025 |
| 424B5 | Prospectus supplement | Oct 16, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 15, 2025 | Oct 15, 2025 |
| 8-K |
Current report
Other events
|
Sep 29, 2025 | Sep 26, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 25, 2025 | Sep 19, 2025 |
| S-1 | Registration statement | Aug 29, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change
|
Aug 29, 2025 | Aug 28, 2025 |
| 4 | Insider transaction | Aug 29, 2025 | Aug 21, 2025 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Aug 21, 2025 | Aug 15, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 19, 2025 | Aug 19, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| EFFECT | Filing | Jul 31, 2025 | — |
| CORRESP | Letter to the SEC | Jul 30, 2025 | — |
| UPLOAD | Letter from the SEC | Jul 30, 2025 | — |
| S-8 | Employee stock plan registration | Jul 29, 2025 | — |
| S-3 | Shelf registration | Jul 29, 2025 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jul 1, 2025 | Jun 30, 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 |
| ARS | Annual report to shareholders | Jun 6, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Jun 6, 2025 | Jun 6, 2025 |
| PRE 14A | Preliminary proxy statement | May 23, 2025 | May 23, 2025 |
| 8-K |
Current report
Results of operations
|
May 15, 2025 | May 15, 2025 |
| EFFECT | Filing | May 14, 2025 | — |
| 10-Q | Quarterly report | May 14, 2025 | Mar 31, 2025 |
| 424B3 | Prospectus | May 14, 2025 | — |
| CORRESP | Letter to the SEC | May 12, 2025 | — |
| UPLOAD | Letter from the SEC | May 9, 2025 | — |
| S-3 | Shelf registration | May 6, 2025 | — |
| 4 | Insider transaction | Apr 29, 2025 | Apr 25, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 16, 2025 | Apr 16, 2025 |
| 10-K | Annual report | Apr 15, 2025 | Dec 31, 2024 |
| NT 10-K | Filing | Mar 31, 2025 | Dec 31, 2024 |
| 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 |
| 8-K |
Current report
Officer or director change
|
Mar 20, 2025 | Mar 14, 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 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Mar 3, 2025 | Mar 2, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 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 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2024 | Dec 6, 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 |
| 10-Q | Quarterly report | Nov 19, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Nov 18, 2024 | Nov 14, 2024 |
| NT 10-Q | Filing | Nov 15, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Listing notice, Unregistered share sale, Officer or director change, Regulation FD disclosure
|
Nov 14, 2024 | Nov 13, 2024 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
Nov 8, 2024 | Nov 7, 2024 |
| 4 | Insider transaction | Nov 1, 2024 | Oct 31, 2024 |
| 425 | Filing | Oct 15, 2024 | — |
| EFFECT | Filing | Oct 11, 2024 | — |
| 424B3 | Prospectus | Oct 11, 2024 | — |
| CORRESP | Letter to the SEC | Oct 9, 2024 | — |
| S-4/A | Filing | Oct 9, 2024 | — |
| 8-K |
Current report
Listing notice
|
Oct 4, 2024 | Oct 1, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| CORRESP | Letter to the SEC | Sep 30, 2024 | — |
| S-4/A | Filing | Sep 30, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 26, 2024 | — |
| 4 | Insider transaction | Sep 18, 2024 | Sep 17, 2024 |
| 3 | Initial insider ownership | Sep 18, 2024 | Sep 17, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 18, 2024 | Sep 13, 2024 |
| 424B5 | Prospectus supplement | Sep 16, 2024 | — |
| EFFECT | Filing | Sep 13, 2024 | — |
| S-4 | Registration for a merger or exchange | Sep 13, 2024 | — |
| CORRESP | Letter to the SEC | Sep 11, 2024 | — |
| UPLOAD | Letter from the SEC | Sep 11, 2024 | — |
| S-3 | Shelf registration | Sep 6, 2024 | — |
| 8-K |
Current report
Other events
|
Sep 6, 2024 | Sep 6, 2024 |
| 8-K/A |
Amended current report
Officer or director change
|
Aug 23, 2024 | Apr 25, 2024 |
| 10-Q | Quarterly report | Aug 19, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 19, 2024 | Aug 19, 2024 |
| NT 10-Q | Filing | Aug 15, 2024 | Jun 30, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jul 1, 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 | — |
| 8-K |
Current report
Officer or director change
|
Jun 5, 2024 | May 31, 2024 |
| 4 | Insider transaction | Jun 4, 2024 | May 31, 2024 |
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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)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.