Arqit Quantum Inc.: General Manager-US Nilan Nicholas William sold 493 shares

What happened Nilan Nicholas William, General Manager-US, sold 493 shares of Arqit Quantum Inc. on Oct 6, 2026, at $24.19 per share, for total proceeds of $11,926. The Form 4 reports the transaction as an open market or private sale (code S).

Key details

• Transaction date and price: Oct 6, 2026 — 493 shares at $24.19 per share.
• Total value reported: $11,926.
• Transaction type: sale (S), described as open market or private sale.
• Shares owned after the transaction: not stated in the filing.
• Filing date and accession: filed Oct 8, 2026; accession number 0001859690-26-000190.
• Footnote in the filing: issuer is a foreign private issuer under Rule 3a12-3(b); the reporting person's transactions are exempt from Sections 16(b) and 16(c) of the Exchange Act.
• Filing timeliness: not indicated as late in the filing.

Why it may matter This filing shows a sale of common shares reported by the insider. A filing does not show why the insider traded or why the company acted.