Form 4 Filing for Arqit Quantum Inc.

This SEC filing details transactions made by Ritchie Garth, a director at Arqit Quantum Inc., on October 1, 2026. Garth acquired 17, 67, 84, and 84 ordinary shares of Arqit Quantum Inc. through the conversion of Restricted Share Units (RSUs). These RSUs vest quarterly, with conversion into ordinary shares occurring on a one-for-one basis. The filing also notes that due to Arqit Quantum Inc. being a foreign private issuer, these transactions are exempt from Sections 16(b) and 16(c) of the Act. Post-transaction, Garth