9 insiders reported 77 Form 4 transactions for Arqit Quantum Inc. (ARQQ) over the past 18 months (most recent 2026-07-21). Recent activity: Calabria Carlo (Director) Buy 757 shares, Lefebvre d'Ovidio Manfredi (Director) Buy 673 shares, Ritchie Garth (Director) Buy 841 shares, Leaver Andrew (Chief Executive Officer) Sell 9,893 shares, Ritchie Garth (Director) Buy 50 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-21 | Calabria Carlo | Director | Buy | 757 | $0 |
| 2026-07-21 | Lefebvre d'Ovidio Manfredi | Director | Buy | 673 | $0 |
| 2026-07-21 | Ritchie Garth | Director | Buy | 841 | $0 |
| 2026-07-06 | Leaver Andrew | Chief Executive Officer | Sell | 9,893 | $249,329 |
| 2026-07-06 | Ritchie Garth | Director | Buy | 50 | $0 |
| 2026-07-06 | Lefebvre d'Ovidio Manfredi | Director | Buy | 3,584 | $0 |
| 2026-07-06 | Leaver Andrew | Chief Executive Officer | Buy | 15,625 | $0 |
| 2026-07-06 | Calabria Carlo | Director | Buy | 50 | $0 |
| 2026-07-06 | Willcocks Patrick | General Counsel | Buy | 2,082 | $0 |
| 2026-07-06 | Feenan Paul | Chief Revenue Officer | Buy | 1,666 | $0 |
| 2026-07-06 | Feenan Paul | Chief Revenue Officer | Buy | 119 | $0 |
| 2026-07-06 | Wilder Ben Simon | Chief Operating Officer | Buy | 500 | $0 |
| 2026-07-06 | Wilder Ben Simon | Chief Operating Officer | Buy | 833 | $0 |
| 2026-07-06 | Ritchie Garth | Director | Buy | 250 | $0 |
| 2026-07-06 | Lefebvre d'Ovidio Manfredi | Director | Buy | 50 | $0 |
| 2026-07-06 | Calabria Carlo | Director | Buy | 250 | $0 |
| 2026-07-06 | Willcocks Patrick | General Counsel | Buy | 110 | $0 |
| 2026-07-06 | Lefebvre d'Ovidio Manfredi | Director | Buy | 250 | $0 |
| 2026-07-06 | Feenan Paul | Chief Revenue Officer | Buy | 472 | $0 |
| 2026-07-06 | Calabria Carlo | Director | Buy | 250 | $0 |
| 2026-07-06 | Calabria Carlo | Director | Buy | 249 | $0 |
| 2026-07-06 | Ritchie Garth | Director | Buy | 250 | $0 |
| 2026-07-06 | Wilder Ben Simon | Chief Operating Officer | Sell | 769 | $19,381 |
| 2026-07-06 | Feenan Paul | Chief Revenue Officer | Buy | 965 | $0 |
| 2026-07-06 | Willcocks Patrick | General Counsel | Buy | 448 | $0 |
Source: SEC Form 4 filings · as of 2026-07-21