Arqit Quantum Inc.: CEO Andrew Leaver exercised 5,209 shares

What happened

• Andrew Leaver, CEO, exercised or converted RSUs (reported as derivative transaction code M) into 5,209 ordinary shares on Oct 12, 2026. The filing shows an acquisition of 5,209 shares at $0.00 and a reported disposition of 5,209 shares (derivative) at $0.00, with total consideration reported as $0.

Key details

• Transaction date and price: Oct 12, 2026; acquired 5,209 shares @ $0.00 (M); disposed 5,209 shares @ $0.00 (M, derivative).
• Shares owned after the transaction: not disclosed in this filing.
• Footnotes: F1 — the RSUs convert into ARQQ ordinary shares on a one-for-one basis. F2 — the RSUs vest quarterly in equal installments on Oct 1, 2026; Jan 1, Apr 1, Jul 1, Oct 1 of 2027, 2028, and 2029.
• Filing date: Oct 13, 2026 (filed one day after the reported transaction); no late filing flag reported.

Why it may matter

• The filing reports conversion/exercise of RSUs and a same-day reported disposition of the derivative shares.
• A filing does not show why the insider traded or why the company acted.