Arqit Quantum Inc.

Last updated September 27, 2026

Organization details

Legal name
Arqit Quantum Inc.
Ownership
Public
Status
Active
SIC code
7372 — Services-Prepackaged Software
Jurisdiction of incorporation
Cayman Islands
Headquarters city
London
Headquarters country
United Kingdom
Fiscal year end
September
Ticker symbol
ARQQ
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001859690

Board of directors

Board connections

1 of this board's directors also sit on 1 other board.

Network of Arqit Quantum Inc.'s board connections newcleo plc newcleo plc d'Ovidio Manfredi Lefebvre d'Ovidio Manfredi Le... Arqit Quantum Inc.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$2,508,451
16 sales by 8 insiders
Date Insider Transaction Shares Price Value
Sep 22, 2026 d'Ovidio Manfredi Lefebvre Director In-the-money exercise +4,600,000 $2.50 $11,500,000
Jul 17, 2026 Garth Ritchie Director Option exercise +841 — —
Jul 17, 2026 d'Ovidio Manfredi Lefebvre Director Option exercise +673 — —
Jul 17, 2026 Carlo Calabria Director Option exercise +757 — —
Jul 2, 2026 Leaver Andrew Officer (Chief Executive Officer) Open-market sale −9,893 $25.20 $249,329
Jul 2, 2026 Wilder Ben Simon Officer (Chief Operating Officer) Open-market sale −769 $25.20 $19,381
Jul 2, 2026 Feenan Paul Officer (Chief Revenue Officer) Open-market sale −1,834 $25.20 $46,222
Jul 2, 2026 Garth Ritchie Director Open-market sale −439 $25.20 $11,064
Jul 2, 2026 Willcocks Patrick Officer (General Counsel) Open-market sale −2,009 $25.20 $50,632
Jul 1, 2026 Feenan Paul Officer (Chief Revenue Officer) Option exercise +1,666 — —
Jul 1, 2026 Wilder Ben Simon Officer (Chief Operating Officer) Option exercise +833 — —
Jul 1, 2026 Leaver Andrew Officer (Chief Executive Officer) Option exercise +15,625 — —
Jul 1, 2026 Garth Ritchie Director Option exercise +50 — —
Jul 1, 2026 Willcocks Patrick Officer (General Counsel) Option exercise +2,082 — —
Jul 1, 2026 Carlo Calabria Director Option exercise +50 — —

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