Form 4 Filing for Arqit Quantum Inc.

This filing details transactions by Manfredi Lefebvre d'Ovidio, a director at Arqit Quantum Inc. (ARQQ), concerning Business Combination Warrants. On May 15, 2026, 110 warrants were disposed of at a price of $2.00 per share, resulting in 24,386.56 warrants remaining. On May 18, 2026, another 106 warrants were disposed of at the same price, leaving 24,280.24 warrants. These transactions are exempt from Section 16 of the Securities Exchange Act of 1934 due to Arqit Quantum Inc. being a foreign private issuer. The filing also notes a reverse stock split effective September 19, 2024, where 25 shares consolidated into one, and warrants are exercisable for fractional shares post-split.