X0609 4 2026-08-18 0 0001541157 Akari Therapeutics Plc AKTX 0001702447 Patel Samir Rashmikant false C/O AKARI THERAPEUTICS PLC 401 EAST JACKSON STREET, SUITE 3300 TAMPA FL 33602 1 0 0 0 0 American Depositary Shares representing Ordinary Shares 2026-08-18 4 A 0 6300 7.899 A 9866 D American Depositary Shares representing Ordinary Shares 2026-10-05 4 A 0 2236 7.899 A 12102 D Stock Option (Right to Buy) 7.899 2026-08-18 4 A 0 30000 0 A 2036-08-18 American Depositary Shares representing Ordinary Shares 30000 30000 D Stock Option (Right to Buy) 7.899 2026-08-18 4 A 0 15000 0 A 2036-08-18 American Depositary Shares representing Ordinary Shares 15000 15000 D These American Depositary Shares ("ADSs") represent restricted stock units ("RSUs"), with each such RSU representing the right to receive 80,000 ordinary shares with a par value of $0.000000005 per ordinary share. This RSU grant was approved by the Board of Directors of the Issuer on August 18, 2026, and is subject to forfeiture if shareholder approval of a proposed amendment to the Issuer's equity incentive plan to increase the number of shares reserved for issuance under the plan ("Shareholder Approval") is not obtained. The RSUs will vest in full on the date of Shareholder Approval. These ADSs represent RSUs, with each such RSU representing the right to receive 80,000 ordinary shares with a par value of $0.000000005 per ordinary share. This RSU grant was approved by the Board of Directors of the Issuer on October 5, 2026, and is subject to forfeiture if Shareholder Approval is not obtained. The RSUs will vest in full on the date of Shareholder Approval. This award of RSUs was granted in lieu of accrued but unpaid cash retainers payable to non-execute directors in accordance with the Issuer's remuneration policy. On August 18, 2026, the Reporting Person was granted an option to purchase 30,000 ADSs. This option grant is subject to forfeiture if Shareholder Approval is not obtained. The option will vest with respect to 4.17% for each one-month anniversary of August 18, 2026 that has elapsed before the date of Shareholder Approval. The remainder of the option grant will vest in equal, monthly installments beginning on the 18th day of the month subsequent to the month where Shareholder Approval was obtained until fully vested on the two-year anniversary of August 18, 2026, subject to the Reporting Person's continued service with the Issuer on each such vesting date. On August 18, 2026, the Reporting Person was granted an option to purchase 15,000 ADSs. This option grant is subject to forfeiture if Shareholder Approval is not obtained. Beginning on the date of Shareholder Approval, this option will vest with respect to 8.33% of the grant on the date of Shareholder Approval plus 8.33% for each one-month anniversary of August 18, 2026 that has elapsed before the date of Shareholder Approval. The remainder of the option grant will vest in equal, monthly installments beginning on the 18th day of the month subsequent to the month where Shareholder Approval was obtained until fully vested on the one-year anniversary of August 18, 2026, subject to the Reporting Person's continued service with the Issuer on each such vesting date. /s/ Abizer Gaslightwala, as Attorney-in-Fact 2026-10-16