Arqit Quantum Inc. - Form 4 Filing

This filing details transactions of Arqit Quantum Inc. (ARQQ) securities by reporting owner Manfredi d'Ovidio Lefebvre, a director. On April 21 and 22, 2026, Lefebvre d'Ovidio Manfredi disposed of Business Combination Warrants. Specifically, 103 warrants were disposed of on April 21 at a price of $2.8 per share, and 381 warrants were disposed of on April 22 at $3.1 per share. These transactions are related to the exercise of warrants, with the underlying security being Ordinary Shares. The filing also notes that due to Arqit Quantum Inc. being a foreign private issuer, these transactions are exempt from Section 16(b) and 16(c) of the Act. A reverse stock split was announced on September 19, 2024, where 25 outstanding shares consolidated into one. Each warrant is exercisable for 0.04 ordinary shares on a post-reverse stock split basis, requiring the exercise of at least 25 warrants for one whole share.