Insider Trading Activity of Arqit Quantum Inc.

This filing details insider trading activity for Arqit Quantum Inc. (ARQQ) by reporting owner Manfredi Lefebvre d'Ovidio, a director. On June 24 and 25, 2026, the reporting owner disposed of 659 and 455 Business Combination Warrants, respectively, each at a price of $1.20 per share. These warrants are exercisable for Ordinary Shares. The filing also notes a reverse stock split implemented on September 19, 2024, where 25 ordinary shares were consolidated into one. Each warrant has an exercise price of $11.50 and can be exercised to purchase 0.04 ordinary shares on a post-reverse stock split basis. The reporting owner beneficially owns 385,402 Business Combination Warrants, which, if exercised in full, would be equivalent to 15,416.08 ordinary shares post-reverse stock split. The transactions are exempt from Section 16 of the Act due to Arqit Quantum Inc. being a foreign private issuer.