Calabria Carlo SEC Filing Summary

This filing details transactions made by Carlo Calabria, a director at Arqit Quantum Inc., on October 2, 2026. The transactions involved Arqit Quantum Inc. Ordinary Shares and Restricted Share Units (RSUs). Calabria acquired a total of 250 ordinary shares through the conversion of RSUs, with post-transaction holdings of 232,980 ordinary shares. Concurrently, 250 RSUs were disposed of, resulting in a post-transaction holding of 4,117 RSUs. These transactions are exempt from Sections 16(b) and 16(c) of the Act due to the issuer's status as a foreign private issuer. The RSUs vest quarterly through October 1, 2028, converting into ordinary shares on a one-for-one basis. All transactions were marked as