ARQQNasdaqServices-Prepackaged SoftwareFiscal year ends September 30
Arqit Quantum Inc.
Financials through fiscal 2025, year ended Sep 30, 2025Last filing: 20-F on Dec 9, 2025
$14.02+0.00 (0.00%)
Close on Oct 19, 2026
- Market cap
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- P/E (TTM)
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- Dividend yield
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Ownership
Who owns Arqit Quantum's shares
Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
0 buys · 16 sales
Net sold $2.51M
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Heritage Assets SCSp | 9,593,764 | 43.20% | 13D (active) amendment | Oct 16, 2025 |
| Manfredi Lefebvre d'Ovidio | 9,298,314 | 38.60% | 13D (active) amendment | May 21, 2026 |
| M Management S.A. | 9,272,141 | 41.80% | 13D (active) amendment | Nov 10, 2025 |
| Williams David John | 726,723 | 5.80% | 13D (active) amendment | Dec 11, 2024 |
| Liberum Wealth Limited | 20,011,538 | 9.65% | 13G (passive) | Jan 26, 2024 |
| Notion Capital III LP | 1,812,206 | 10.00% | 13G (passive) amendment | Jun 26, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Ben Simon Wilder | Chief Operating Officer | 3,582 | 0.02% | Jul 6, 2026 |
| Paul Feenan | Chief Revenue Officer | 19,351 | 0.13% | Jul 6, 2026 |
| Patrick Willcocks | General Counsel | 9,462 | 0.06% | Jul 6, 2026 |
| Andrew Leaver | Chief Executive Officer | 51,483 | 0.34% | Jul 6, 2026 |
| Jennifer Bers | Chief Revenue Officer | 15,000 | 0.10% | Jun 24, 2026 |
| Robert Michael Russell | Chief Financial Officer | – | – | Jun 22, 2026 |
| Nicholas Pointon | Chief Financial Officer | 16,238 | 0.11% | May 20, 2026 |
| Nicholas William Nilan | General Manager-US | – | – | Mar 18, 2026 |
| d'Ovidio Manfredi Lefebvre | Director | 8,991,471 | 58.80% | Sep 23, 2026 |
| Carlo Calabria | Director | 232,478 | 1.52% | Jul 21, 2026 |
| Garth Ritchie | Director | 105,450 | 0.69% | Jul 21, 2026 |
| Cristina Levis | Director | – | – | Jun 5, 2026 |
| Stephen Charles Chandler | Director | – | – | Mar 18, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| d'Ovidio Manfredi Lefebvre Director | Sep 22, 2026 | Option exercise | +4,600,000 | $2.50 | $11.50M | 8,942,448 |
| Carlo Calabria Director | Jul 17, 2026 | Option exercise | +757 | – | – | 232,478 |
| Garth Ritchie Director | Jul 17, 2026 | Option exercise | +841 | – | – | 105,450 |
| d'Ovidio Manfredi Lefebvre Director | Jul 17, 2026 | Option exercise | +673 | – | – | 49,023 |
| Paul Feenan Chief Revenue Officer | Jul 2, 2026 | Sale | −1,834 | $25.20 | $46.22K | 19,351 |
| Patrick Willcocks General Counsel | Jul 2, 2026 | Sale | −2,009 | $25.20 | $50.63K | 9,462 |
| Ben Simon Wilder Chief Operating Officer | Jul 2, 2026 | Sale | −769 | $25.20 | $19.38K | 3,582 |
| Andrew Leaver Chief Executive Officer | Jul 2, 2026 | Sale | −9,893 | $25.20 | $249.30K | 51,483 |
| Garth Ritchie Director | Jul 2, 2026 | Sale | −439 | $25.20 | $11.06K | 104,609 |
| Paul Feenan Chief Revenue Officer | Jul 1, 2026 | Option exercise | +1,666 | – | – | 19,629 |
| Paul Feenan Chief Revenue Officer | Jul 1, 2026 | Option exercise | +119 | – | – | 19,748 |
| Paul Feenan Chief Revenue Officer | Jul 1, 2026 | Option exercise | +965 | – | – | 21,185 |
| Paul Feenan Chief Revenue Officer | Jul 1, 2026 | Option exercise | +472 | – | – | 20,220 |
| Carlo Calabria Director | Jul 1, 2026 | Option exercise | +249 | – | – | 231,721 |
| Carlo Calabria Director | Jul 1, 2026 | Option exercise | +250 | – | – | 231,472 |
| Carlo Calabria Director | Jul 1, 2026 | Option exercise | +250 | – | – | 231,222 |
| Carlo Calabria Director | Jul 1, 2026 | Option exercise | +50 | – | – | 230,972 |
| Patrick Willcocks General Counsel | Jul 1, 2026 | Option exercise | +110 | – | – | 10,108 |
| Patrick Willcocks General Counsel | Jul 1, 2026 | Option exercise | +448 | – | – | 10,556 |
| Patrick Willcocks General Counsel | Jul 1, 2026 | Option exercise | +915 | – | – | 11,471 |
| Patrick Willcocks General Counsel | Jul 1, 2026 | Option exercise | +2,082 | – | – | 9,998 |
| Ben Simon Wilder Chief Operating Officer | Jul 1, 2026 | Option exercise | +833 | – | – | 3,851 |
| Ben Simon Wilder Chief Operating Officer | Jul 1, 2026 | Option exercise | +500 | – | – | 4,351 |
| d'Ovidio Manfredi Lefebvre Director | Jul 1, 2026 | Option exercise | +249 | – | – | 48,350 |
| d'Ovidio Manfredi Lefebvre Director | Jul 1, 2026 | Option exercise | +250 | – | – | 48,101 |
| d'Ovidio Manfredi Lefebvre Director | Jul 1, 2026 | Option exercise | +50 | – | – | 47,851 |
| d'Ovidio Manfredi Lefebvre Director | Jul 1, 2026 | Option exercise | +3,584 | – | – | 47,801 |
| Andrew Leaver Chief Executive Officer | Jul 1, 2026 | Option exercise | +15,625 | – | – | 61,376 |
| Garth Ritchie Director | Jul 1, 2026 | Option exercise | +249 | – | – | 105,048 |
| Garth Ritchie Director | Jul 1, 2026 | Option exercise | +250 | – | – | 104,799 |
| Garth Ritchie Director | Jul 1, 2026 | Option exercise | +250 | – | – | 104,549 |
| Garth Ritchie Director | Jul 1, 2026 | Option exercise | +50 | – | – | 104,299 |
| d'Ovidio Manfredi Lefebvre Director | Jul 1, 2026 | Sale | −32,422 | $30.24 | $980.44K | 4,342,448 |
| Patrick Willcocks General Counsel | Jun 30, 2026 | Sale | −4,000 | $29.48 | $117.92K | 7,916 |
| d'Ovidio Manfredi Lefebvre Director | Jun 30, 2026 | Sale | −22,022 | $30.07 | $662.20K | 4,374,870 |
| Jennifer Bers Chief Revenue Officer | Jun 22, 2026 | Option exercise | +15,000 | – | – | 15,000 |
| Jennifer Bers Chief Revenue Officer | Jun 22, 2026 | Sale | −8,288 | $21.42 | $177.53K | 6,712 |
| Garth Ritchie Director | Jun 5, 2026 | Option exercise | +73,562 | $2.50 | $183.91K | 104,249 |
| Carlo Calabria Director | Jun 3, 2026 | Option exercise | +120,000 | $2.50 | $300.00K | 230,922 |
| d'Ovidio Manfredi Lefebvre Director | May 7, 2026 | Option exercise | +1,082 | – | – | 44,217 |
| Garth Ritchie Director | May 7, 2026 | Option exercise | +1,887 | – | – | 30,687 |
| Carlo Calabria Director | May 6, 2026 | Option exercise | +1,698 | – | – | 110,922 |
| d'Ovidio Manfredi Lefebvre Director | May 6, 2026 | Option exercise | +1,509 | – | – | 43,135 |
| Nicholas Pointon Chief Financial Officer | Apr 20, 2026 | Sale | −435 | $15.87 | $6.90K | 16,238 |
| Nicholas Pointon Chief Financial Officer | Apr 20, 2026 | Option exercise | +3,066 | – | – | 16,673 |
| Andrew Leaver Chief Executive Officer | Apr 6, 2026 | Sale | −7,595 | $13.51 | $102.61K | 45,751 |
| Ben Simon Wilder Chief Operating Officer | Apr 2, 2026 | Sale | −683 | $13.31 | $9.09K | 3,018 |
| Garth Ritchie Director | Apr 2, 2026 | Sale | −512 | $13.25 | $6.78K | 28,800 |
| Patrick Willcocks General Counsel | Apr 2, 2026 | Sale | −1,790 | $13.32 | $23.84K | 11,916 |
| Nicholas Pointon Chief Financial Officer | Apr 2, 2026 | Sale | −1,709 | $13.32 | $22.76K | 13,607 |
| Paul Feenan Chief Revenue Officer | Apr 2, 2026 | Sale | −1,632 | $13.32 | $21.74K | 17,963 |
| Ben Simon Wilder Chief Operating Officer | Apr 1, 2026 | Option exercise | +500 | – | – | 3,701 |
| Ben Simon Wilder Chief Operating Officer | Apr 1, 2026 | Option exercise | +833 | – | – | 3,201 |
| Garth Ritchie Director | Apr 1, 2026 | Option exercise | +250 | – | – | 28,811 |
| Garth Ritchie Director | Apr 1, 2026 | Option exercise | +501 | – | – | 29,312 |
| Garth Ritchie Director | Apr 1, 2026 | Option exercise | +50 | – | – | 28,561 |
| Garth Ritchie Director | Apr 1, 2026 | Option exercise | +250 | – | – | 28,511 |
| Carlo Calabria Director | Apr 1, 2026 | Option exercise | +250 | – | – | 108,723 |
| Carlo Calabria Director | Apr 1, 2026 | Option exercise | +50 | – | – | 108,223 |
| Carlo Calabria Director | Apr 1, 2026 | Option exercise | +501 | – | – | 109,224 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Andrew Leaver Officer, Director | Oct 13, 2026 | 2,573 | $42.21K | Oct 13, 2026 | Restricted Stock Vesting |
| Patrick Willcocks Officer | Oct 6, 2026 | 555 | $13.43K | Oct 6, 2026 | Restricted Stock Vesting |
| Nicholas William Nilan Officer | Oct 6, 2026 | 493 | $11.93K | Oct 6, 2026 | Restricted Stock Vesting |
| Garth Ritchie Director | Oct 6, 2026 | 118 | $2.85K | Oct 6, 2026 | Restricted Stock Vesting |
| Ben Simon Wilder Officer | Oct 6, 2026 | 218 | $5.27K | Oct 6, 2026 | Restricted Stock Vesting |
| Andrew Leaver Officer, Director | Oct 6, 2026 | 2,398 | $58.01K | Oct 6, 2026 | Restricted Stock Vesting |
| Paul Feenan Officer | Oct 6, 2026 | 504 | $12.19K | Oct 6, 2026 | Restricted Stock Vesting |
| Ben Simon Wilder Officer | Oct 5, 2026 | 233 | $5.54K | Oct 5, 2026 | Restricted Stock Vesting |
| Garth Ritchie Director | Oct 5, 2026 | 127 | $3.02K | Oct 5, 2026 | Restricted Stock Vesting |
| Andrew Leaver Officer, Director | Oct 5, 2026 | 2,535 | $60.29K | Oct 5, 2026 | Restricted Stock Vesting |
| Nicholas William Nilan Officer | Oct 5, 2026 | 522 | $12.42K | Oct 5, 2026 | Restricted Stock Vesting |
| Patrick Willcocks Officer | Oct 5, 2026 | 588 | $13.99K | Oct 5, 2026 | Restricted Stock Vesting |
| Paul Feenan Officer | Oct 5, 2026 | 533 | $12.68K | Oct 5, 2026 | Restricted Stock Vesting |
| Garth Ritchie Director | Oct 2, 2026 | 121 | $2.96K | Oct 2, 2026 | Restricted Stock Vesting |
| Nicholas William Nilan Officer | Oct 2, 2026 | 494 | $12.09K | Oct 2, 2026 | Restricted Stock Vesting |