Arqit Quantum Inc.: director Calabria Carlo exercised 248 shares

What happened

• Calabria Carlo, a director, exercised or converted derivative awards into 248 ordinary shares and the filing shows dispositions of 248 derivative shares on Oct 5, 2026. Each reported transaction price was $0 and the total reported value was $0.

Key details

• Transaction date and price: Oct 5, 2026; exercise/conversion code M; price $0.
• Shares acquired and disposed: acquired 16, 66, 83 and 83 shares (total 248); disposed 16, 66, 83 and 83 shares (total 248).
• Shares owned after the transaction: not reported in the filing.
• Relevant footnotes: F1 — RSUs convert into ARQQ ordinary shares one-for-one; F2, F3, F4 — vesting schedules include Oct 1, 2026 and multiple quarterly installments through 2027 and 2028 as described in the filing.
• Form 4 filing date: Oct 7, 2026; the filing does not indicate it was late.

Why it may matter

• The filing records conversions/exercises of restricted share units (derivative transactions, code M) and shows equal amounts were disposed the same day rather than retained.
• The RSUs convert one-for-one and vest according to the schedules in the footnotes.
• A filing does not show why the insider traded or why the company acted.