Insider Transaction Report for Arqit Quantum Inc.

Andrew Leaver, Chief Executive Officer of Arqit Quantum Inc. (ARQQ), reported a transaction on October 1, 2026. Leaver acquired 5,209 Ordinary Shares with a transaction price of $0.00 per share, resulting in a post-transaction ownership of 56,692 shares. Additionally, Leaver reported a disposition of 5,209 Restricted Share Units (RSUs), which convert to ordinary shares on a one-for-one basis. These RSUs are scheduled to vest quarterly through October 1, 2029. The reported transactions are exempt from Section 16(b) of the Securities Exchange Act of 1934 due to Arqit Quantum Inc.'s status as a foreign private issuer. The filing is a Form 4, indicating a change in beneficial ownership.