Arqit Quantum Director Manfredi Sells Business Combination Warrants

This Form 4 filing reports that Lefebvre d'Ovidio Manfredi, a director of Arqit Quantum Inc. (ARQQ), sold Business Combination Warrants on June 22-23, 2026. On June 22, 2026, Manfredi sold 120 warrants at $1.40 per warrant, reducing his position to 17,021.76 equivalent ordinary shares. On June 23, 2026, he sold an additional 492 warrants at $1.80 per warrant, bringing his total position to 16,530.00 equivalent ordinary shares. The warrants are held indirectly through Heritage Assets SCSp and have an exercise price of $11.50, expiring on September 3, 2026. Due to Arqit Quantum's status as a foreign private issuer, these transactions are exempt from Sections 16(b) and 16(c) of the Exchange Act. The filing notes that following a reverse stock split implemented in September 2024, 25 Business Combination Warrants are required to exercise for one whole ordinary share.