• Arqit Quantum granted director Garth Ritchie 1,021 Restricted Share Units on October 15, 2026.
• The units converted into 1,021 Ordinary Shares on October 16, 2026, bringing his direct holdings to 106,855 shares.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Arqit Quantum Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001859690-26-000194), on October 20, 2026, and is solely responsible for the information contained therein.