Calabria Carlo SEC Filing Summary

This filing details transactions made by Calabria Carlo, a director at Arqit Quantum Inc. (ARQQ), on October 1, 2026. Carlo acquired 17 Ordinary Shares, with a post-transaction total of 232,495 shares. Additionally, 17 Restricted Share Units (RSUs) were disposed of, resulting in 983 RSUs remaining. Similar transactions occurred with 67 and 84 shares/RSUs, increasing Carlo's total ordinary shares to 232,562, 232,646, and 232,730 respectively, and decreasing RSUs to 916, 1167, and 2166. These transactions are exempt from Sections 16(b) and 16(c) of the Act due to Arqit Quantum Inc. being a foreign private issuer. The RSUs are set to vest quarterly through October 1, 2028, converting into ordinary shares on a one-for-one basis.