Arqit Quantum Inc: General Manager-US Nilan Nicholas William sold 494 shares

What happened

• Nilan Nicholas William, general manager-US, sold 494 shares at $24.47 on Oct 2, 2026 for $12,090.
• The filing also reports an exercise or conversion of a derivative for 960 shares acquired at $0.00 on Oct 2, 2026 and a disposition of 960 derivative shares (price reported as N/A) on the same date.

Key details

• Transaction dates and prices:
  • Oct 2, 2026: open market or private sale (S) — 494 shares at $24.47 for $12,090.
  • Oct 2, 2026: exercise or conversion of derivative (M) — 960 shares acquired at $0.00 for $0.
  • Oct 2, 2026: exercise or conversion of derivative (M) — 960 shares disposed, price N/A (derivative).
• Shares owned after the transaction: not reported in the filing.
• Relevant footnotes:
  • F1: The restricted share units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.
  • F2: Each RSU represents a contingent right to receive one ARQQ ordinary share. 2,879 RSUs vest on Oct 1, 2026 and the remaining RSUs vest quarterly in equal installments on Jan 1, Apr 1, Jul 1, and Oct 1, 2027 and Jan 1, Apr 1, Jul 1, and Oct 1, 2028.
• Filing date: Oct 6, 2026; filing timeliness not indicated in the report.

Why it may matter

• The filing shows an exercise/conversion of derivative shares and a same-day disposition of the exercised shares (the exercised shares were disposed on the same day).
• The filing does not show why the insider traded or why the company acted.