Insider Transactions of Arqit Quantum Inc.

Manfredi Lefebvre d'Ovidio, a director at Arqit Quantum Inc. (ARQQ), reported transactions involving Business Combination Warrants. On April 17, 2026, 151 warrants were disposed of at $3.1 per share, leaving 28,841.8 warrants. On April 20, 2026, another 307 warrants were disposed of at $2.8 per share, resulting in 28,535.04 warrants remaining. These transactions are exempt from Section 16(b) of the Securities Exchange Act of 1934 due to Arqit Quantum Inc.'s status as a foreign private issuer. The warrants, when exercised, are for Arqit Quantum Inc. ordinary shares. A reverse stock split was previously announced, consolidating every 25 shares 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, with no fractional shares allowed. Thus, a minimum of 25 warrants must be exercised to obtain one ordinary share at an aggregate exercise price of $287.50.