Insider Transaction Report for Arqit Quantum Inc.

This filing details transactions by Manfredi Lefebvre d'Ovidio, a director at Arqit Quantum Inc. (ARQQ). On October 15, 2026, 817 Restricted Share Units (RSUs) were granted, converting to 817 ordinary shares. These RSUs vested within the week of the grant date. On October 16, 2026, these 817 RSUs were disposed of, resulting in 0 shares held. In a separate transaction on the same date, 817 ordinary shares were acquired (transaction code "A"), with a post-transaction share count of 53,924. The reporting person beneficially owns 8,942,448 ordinary shares through Heritage Assets SCSP. The transactions are exempt from Section 16(b) and 16(c) of the Securities Exchange Act of 1934 due to the issuer's status as a foreign private issuer.