Form 4 Filing for Arqit Quantum Inc. - Insider Transactions

This filing details transactions made by Carlo Calabria, a director at Arqit Quantum Inc. (ARQQ), on July 1, 2026. The transactions primarily involve Restricted Share Units (RSUs) and Ordinary Shares. Calabria disposed of RSUs totaling 1249 units, which convert to ordinary shares on a one-to-one basis. These RSUs vested on various dates, with some vesting quarterly through 2028. In parallel, Calabria acquired ordinary shares through the vesting of these RSUs. The transactions are marked under code "M" for materially, with a zero price per share, indicating they are likely part of compensation or equity awards. The reporting person is exempt from Section 16(b) and 16(c) of the Act due to the issuer's status as a foreign private issuer. Post-transaction, Calabria holds 2250 RSUs and 231721 ordinary shares.