Nasdaq · CIK 0001859690
ARQQ Arqit Quantum Inc.
Insider trading from SEC Form 4. Last filing 4 d ago. Close $17.23 on Oct 9, 2026, +46% from the 52-week low and -70% from the high.
Last 90 days
Net insider value
-$327k
more sold than bought
Buys
0
$0 by 0 insiders
Sells
18
$327k by 6 insiders
Insiders on file
8
with a Form 4 at this company
Price and insider trades, last year
ARQQOct 9, 2026 · close 17.23
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Arqit Quantum Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 47Moderate | Andrew Leaver Chief Executive Officer sell | $58k 2,398 shares | -4% | - | |
| 30Weak | Paul Feenan Chief Revenue Officer sell | $12k 504 shares | -2% | - | |
| 30Weak | Patrick Willcocks General Counsel sell | $13k 555 shares | -5% | - | |
| 30Weak | Garth Ritchie director sell | $2,855 118 shares | -0% | - | |
| 40Moderate | Nicholas William Nilan General Manager-US sell | $12k 493 shares | -26% | - | |
| 35Weak | Ben Simon Wilder Chief Operating Officer sell | $5,274 218 shares | -5% | - | |
| 15Weak | Patrick Willcocks General Counsel sell | $14k 588 shares | -5% | - | |
| 20Weak | Ben Simon Wilder Chief Operating Officer sell | $5,542 233 shares | -5% | - | |
| 15Weak | Garth Ritchie director sell | $3,021 127 shares | -0% | - | |
| 25Weak | Nicholas William Nilan General Manager-US sell | $12k 522 shares | -37% | - | |
| 15Weak | Paul Feenan Chief Revenue Officer sell | $13k 533 shares | -2% | - | |
| 32Weak | Andrew Leaver Chief Executive Officer sell | $60k 2,535 shares | -4% | - | |
| 15Weak | Paul Feenan Chief Revenue Officer sell | $12k 506 shares | -2% | - | |
| 33Weak | Andrew Leaver Chief Executive Officer sell | $69k 2,818 shares | -5% | - | |
| 35Weak | Nicholas William Nilan General Manager-US sell | $12k 494 shares | -51% | - | |
| 15Weak | Garth Ritchie director sell | $2,961 121 shares | -0% | - | |
| 20Weak | Ben Simon Wilder Chief Operating Officer sell | $5,409 221 shares | -5% | - | |
| 15Weak | Patrick Willcocks General Counsel sell | $14k 557 shares | -5% | - |
Transactions
The last 100 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 6, 2026 | Garth Ritchie director | SOpen-market sale Ordinary Shares | -118 | $24.19 | $2,855 | 105,834 | 4 d ago |
| Oct 6, 2026 | Ben Simon Wilder Chief Operating Officer | SOpen-market sale Ordinary Shares | -218 | $24.19 | $5,274 | 4,243 | 4 d ago |
| Oct 6, 2026 | Andrew Leaver Chief Executive Officer | SOpen-market sale Ordinary Shares | -2,398 | $24.19 | $58k | 51,330 | 4 d ago |
| Oct 6, 2026 | Nicholas William Nilan General Manager-US | SOpen-market sale Ordinary Shares | -493 | $24.19 | $12k | 1,370 | 4 d ago |
| Oct 6, 2026 | Paul Feenan Chief Revenue Officer | SOpen-market sale Ordinary Shares | -504 | $24.19 | $12k | 20,912 | 4 d ago |
| Oct 6, 2026 | Patrick Willcocks General Counsel | SOpen-market sale Ordinary Shares | -555 | $24.19 | $13k | 11,209 | 4 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +1,111 | $0.00 | $0 | 52,859 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +555 | $0.00 | $0 | 21,470 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | SOpen-market sale Ordinary Shares | -2,535 | $23.78 | $60k | 56,547 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +694 | $0.00 | $0 | 11,898 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +16 | $0.00 | $0 | 232,996 | 5 d ago |
| Oct 5, 2026 | Nicholas William Nilan General Manager-US | MOption exercise Ordinary Shares | +959 | $0.00 | $0 | 1,863 | 5 d ago |
| Oct 5, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Ordinary Shares | +277 | $0.00 | $0 | 4,528 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +16 | $0.00 | $0 | 105,847 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +66 | $0.00 | $0 | 105,913 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +16 | $0.00 | $0 | 52,875 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +157 | $0.00 | $0 | 21,627 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +66 | $0.00 | $0 | 233,062 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +149 | $0.00 | $0 | 12,047 | 5 d ago |
| Oct 5, 2026 | Nicholas William Nilan General Manager-US | SOpen-market sale Ordinary Shares | -522 | $23.78 | $12k | 904 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | JOther Ordinary Shares | -5,209 | $0.00 | $0 | 51,338 | 5 d ago |
| Oct 5, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Ordinary Shares | +166 | $0.00 | $0 | 4,694 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +66 | $0.00 | $0 | 52,941 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 105,996 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +305 | $0.00 | $0 | 12,352 | 5 d ago |
| Oct 5, 2026 | Ben Simon Wilder Chief Operating Officer | SOpen-market sale Ordinary Shares | -233 | $23.78 | $5,542 | 4,461 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 233,145 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +322 | $0.00 | $0 | 21,949 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | MOption exercise Ordinary Shares | +5,208 | $0.00 | $0 | 56,546 | 5 d ago |
| Oct 5, 2026 | Nicholas William Nilan General Manager-US | MOption exercise Restricted Share Unitsderivative | -959 | $0.00 | $0 | 5,752 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 106,079 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 53,024 | 5 d ago |
| Oct 5, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Restricted Share Unitsderivative | -277 | $0.00 | $0 | 3,332 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | SOpen-market sale Ordinary Shares | -533 | $23.78 | $13k | 21,416 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | SOpen-market sale Ordinary Shares | -588 | $23.78 | $14k | 11,764 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 233,228 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | JOther Ordinary Shares | -2,818 | $24.47 | $69k | 53,728 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | SOpen-market sale Ordinary Shares | -127 | $23.78 | $3,021 | 105,952 | 5 d ago |
| Oct 5, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Restricted Share Unitsderivative | -166 | $0.00 | $0 | 4,000 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Restricted Share Unitsderivative | -694 | $0.00 | $0 | 8,330 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 53,107 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Restricted Share Unitsderivative | -555 | $0.00 | $0 | 6,664 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -16 | $0.00 | $0 | 816 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | JOther Restricted Share Unitsderivative | +5,209 | $0.00 | $0 | 197,917 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Restricted Share Unitsderivative | -149 | $0.00 | $0 | 1,336 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Restricted Share Unitsderivative | -157 | $0.00 | $0 | 1,413 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Restricted Share Unitsderivative | -16 | $0.00 | $0 | 816 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -1,111 | $0.00 | $0 | 10,826 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -66 | $0.00 | $0 | 750 | 5 d ago |
| Oct 5, 2026 | Andrew Leaver Chief Executive Officer | MOption exercise Restricted Share Unitsderivative | -5,208 | $0.00 | $0 | 192,709 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Restricted Share Unitsderivative | -66 | $0.00 | $0 | 750 | 5 d ago |
| Oct 5, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Restricted Share Unitsderivative | -322 | $0.00 | $0 | 7,724 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -16 | $0.00 | $0 | 10,810 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 1,001 | 5 d ago |
| Oct 5, 2026 | Patrick Willcocks General Counsel | MOption exercise Restricted Share Unitsderivative | -305 | $0.00 | $0 | 7,324 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -66 | $0.00 | $0 | 10,744 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 1,001 | 5 d ago |
| Oct 5, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 2,000 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 1,001 | 5 d ago |
| Oct 5, 2026 | Garth Ritchie director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 2,000 | 5 d ago |
| Oct 5, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -83 | $0.00 | $0 | 2,000 | 5 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +1,111 | $0.00 | $0 | 51,498 | 6 d ago |
| Oct 2, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Ordinary Shares | +278 | $0.00 | $0 | 4,305 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +555 | $0.00 | $0 | 20,942 | 6 d ago |
| Oct 2, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +694 | $0.00 | $0 | 11,307 | 6 d ago |
| Oct 2, 2026 | Andrew Leaver Chief Executive Officer | MOption exercise Ordinary Shares | +5,208 | $0.00 | $0 | 61,900 | 6 d ago |
| Oct 2, 2026 | Nicholas William Nilan General Manager-US | SOpen-market sale Ordinary Shares | -494 | $24.47 | $12k | 466 | 6 d ago |
| Oct 2, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +17 | $0.00 | $0 | 105,719 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +17 | $0.00 | $0 | 232,747 | 6 d ago |
| Oct 2, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +149 | $0.00 | $0 | 11,456 | 6 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 51,581 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +157 | $0.00 | $0 | 21,099 | 6 d ago |
| Oct 2, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Ordinary Shares | +167 | $0.00 | $0 | 4,472 | 6 d ago |
| Oct 2, 2026 | Andrew Leaver Chief Executive Officer | SOpen-market sale Ordinary Shares | -2,818 | $24.47 | $69k | 59,082 | 6 d ago |
| Oct 2, 2026 | Nicholas William Nilan General Manager-US | MOption exercise Ordinary Shares | +960 | $0.00 | $0 | 1,426 | 6 d ago |
| Oct 2, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +67 | $0.00 | $0 | 105,786 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 232,830 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 232,913 | 6 d ago |
| Oct 2, 2026 | Ben Simon Wilder Chief Operating Officer | SOpen-market sale Ordinary Shares | -92 | $24.47 | $2,252 | 4,380 | 6 d ago |
| Oct 2, 2026 | Patrick Willcocks General Counsel | MOption exercise Ordinary Shares | +305 | $0.00 | $0 | 11,761 | 6 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +17 | $0.00 | $0 | 51,598 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | MOption exercise Ordinary Shares | +322 | $0.00 | $0 | 21,421 | 6 d ago |
| Oct 2, 2026 | Andrew Leaver Chief Executive Officer | MOption exercise Restricted Share Unitsderivative | -5,208 | - | - | 192,708 | 6 d ago |
| Oct 2, 2026 | Nicholas William Nilan General Manager-US | MOption exercise Restricted Share Unitsderivative | -960 | - | - | 6,711 | 6 d ago |
| Oct 2, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 105,869 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Ordinary Shares | +67 | $0.00 | $0 | 232,980 | 6 d ago |
| Oct 2, 2026 | Ben Simon Wilder Chief Operating Officer | SOpen-market sale Ordinary Shares | -129 | $24.47 | $3,157 | 4,251 | 6 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +67 | $0.00 | $0 | 51,665 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | SOpen-market sale Ordinary Shares | -74 | $24.47 | $1,811 | 21,347 | 6 d ago |
| Oct 2, 2026 | Patrick Willcocks General Counsel | SOpen-market sale Ordinary Shares | -166 | $24.47 | $4,063 | 11,595 | 6 d ago |
| Oct 2, 2026 | Garth Ritchie director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 105,952 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -17 | - | - | 899 | 6 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Ordinary Shares | +83 | $0.00 | $0 | 51,748 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | SOpen-market sale Ordinary Shares | -175 | $24.47 | $4,283 | 21,172 | 6 d ago |
| Oct 2, 2026 | Patrick Willcocks General Counsel | SOpen-market sale Ordinary Shares | -70 | $24.47 | $1,713 | 11,525 | 6 d ago |
| Oct 2, 2026 | Ben Simon Wilder Chief Operating Officer | MOption exercise Restricted Share Unitsderivative | -278 | - | - | 3,609 | 6 d ago |
| Oct 2, 2026 | Garth Ritchie director | SOpen-market sale Ordinary Shares | -32 | $24.47 | $783 | 105,920 | 6 d ago |
| Oct 2, 2026 | Carlo Calabria director | MOption exercise Restricted Share Unitsderivative | -83 | - | - | 1,084 | 6 d ago |
| Oct 2, 2026 | d'Ovidio Manfredi Lefebvre director | MOption exercise Restricted Share Unitsderivative | -1,111 | - | - | 12,021 | 6 d ago |
| Oct 2, 2026 | Paul Feenan Chief Revenue Officer | SOpen-market sale Ordinary Shares | -257 | $24.47 | $6,290 | 20,915 | 6 d ago |
Insiders
Everyone who has filed a Form 4 here.
- Carlo Calabriadirector
- Paul FeenanChief Revenue Officer
- Andrew LeaverChief Executive Officer
- d'Ovidio Manfredi Lefebvredirector
- Nicholas William NilanGeneral Manager-US
- Garth Ritchiedirector
- Ben Simon WilderChief Operating Officer
- Patrick WillcocksGeneral Counsel
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.