ARQQ · ISSUER CIK 1859690
Arqit Quantum Inc.
Between Aug 1, 2026 and Oct 29, 2026, 8 Arqit Quantum Inc. insiders reported $0.00 of open-market purchases and $369K of sales on SEC Form 4.
↗8 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. 0 of 19 sales were reported under a 10b5-1 plan.
$0.00Insider buying
$369KInsider selling
−$369KNet open-market
Oct 20, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 20, 202621:37 | Oct 16, 2026 | ARQQ | Director | M · Exercise | — | +817 | 53,924 | +2% | — | ||
| Oct 20, 202617:35 | Oct 16, 2026 | ARQQ | Director | M · Exercise | — | +919 | 234,147 | +0% | — | ||
| Oct 20, 202617:34 | Oct 16, 2026 | ARQQ | Director | M · Exercise | — | +1,021 | 106,855 | +1% | — | ||
| Oct 15, 202616:45 | Oct 13, 2026 | ARQQ | Chief Executive Officer | S · Sell | $16.40 | −2,573 | 53,966 | -5% | −$42K | ||
| Oct 13, 202617:48 | Oct 12, 2026 | ARQQ | Chief Executive Officer | M · Exercise | — | +5,209 | 56,539 | +10% | — | ||
| Oct 8, 202618:19 | Oct 6, 2026 | ARQQ | Chief Operating Officer | S · Sell | $24.19 | −218 | 4,243 | -5% | −$5K | ||
| Oct 8, 202618:18 | Oct 6, 2026 | ARQQ | General Manager-US | S · Sell | $24.19 | −493 | 1,370 | -26% | −$12K | ||
| Oct 8, 202618:17 | Oct 6, 2026 | ARQQ | Director | S · Sell | $24.19 | −118 | 105,834 | -0% | −$3K | ||
| Oct 8, 202618:16 | Oct 6, 2026 | ARQQ | General Counsel | S · Sell | $24.19 | −555 | 11,209 | -5% | −$13K | ||
| Oct 8, 202618:15 | Oct 6, 2026 | ARQQ | Chief Revenue Officer | S · Sell | $24.19 | −504 | 20,912 | -2% | −$12K | ||
| Oct 8, 202618:15 | Oct 6, 2026 | ARQQ | Chief Executive Officer | S · Sell | $24.19 | −2,398 | 51,330 | -4% | −$58K | ||
| Oct 7, 202619:52 | Oct 5, 2026 | ARQQ | Chief Executive Officer | S · Sell | $23.78 | −2,535 | 56,547 | -4% | −$60K | ||
| Oct 7, 202619:52 | Oct 5, 2026 | ARQQ | Chief Executive Officer | M · Exercise | — | +5,208 | 56,546 | +10% | — | ||
| Oct 7, 202619:52 | Oct 5, 2026 | ARQQ | Chief Executive Officer | J · Other | $8.59 | −8,027 | 53,728 | -13% | $69K | ||
| Oct 7, 202619:51 | Oct 5, 2026 | ARQQ | Director | M · Exercise | — | +248 | 233,228 | +0% | — | ||
| Oct 7, 202619:49 | Oct 5, 2026 | ARQQ | Chief Revenue Officer | S · Sell | $23.78 | −533 | 21,416 | -2% | −$13K | ||
| Oct 7, 202619:49 | Oct 5, 2026 | ARQQ | Chief Revenue Officer | M · Exercise | — | +1,034 | 21,949 | +5% | — | ||
| Oct 7, 202619:47 | Oct 5, 2026 | ARQQ | Director | M · Exercise | — | +1,359 | 53,107 | +3% | — | ||
| Oct 7, 202619:45 | Oct 5, 2026 | ARQQ | General Manager-US | S · Sell | $23.78 | −522 | 904 | -37% | −$12K | ||
| Oct 7, 202619:45 | Oct 5, 2026 | ARQQ | General Manager-US | M · Exercise | — | +959 | 1,863 | +106% | — | ||
| Oct 7, 202619:44 | Oct 5, 2026 | ARQQ | Director | S · Sell | $23.78 | −127 | 105,952 | -0% | −$3K | ||
| Oct 7, 202619:44 | Oct 5, 2026 | ARQQ | Director | M · Exercise | — | +248 | 106,079 | +0% | — | ||
| Oct 7, 202619:42 | Oct 5, 2026 | ARQQ | Chief Operating Officer | S · Sell | $23.78 | −233 | 4,461 | -5% | −$6K | ||
| Oct 7, 202619:42 | Oct 5, 2026 | ARQQ | Chief Operating Officer | M · Exercise | — | +443 | 4,694 | +10% | — | ||
| Oct 7, 202619:40 | Oct 5, 2026 | ARQQ | General Counsel | S · Sell | $23.78 | −588 | 11,764 | -5% | −$14K | ||
| Oct 7, 202619:40 | Oct 5, 2026 | ARQQ | General Counsel | M · Exercise | — | +1,148 | 12,352 | +10% | — | ||
| Oct 6, 202619:46 | Oct 2, 2026 | ARQQ | General Counsel | S · Sell | $24.47 | −557 | 11,204 | -5% | −$14K | ||
| Oct 6, 202619:46 | Oct 2, 2026 | ARQQ | General Counsel | M · Exercise | — | +1,148 | 11,761 | +11% | — | ||
| Oct 6, 202619:45 | Oct 2, 2026 | ARQQ | Chief Operating Officer | S · Sell | $24.47 | −221 | 4,251 | -5% | −$5K | ||
| Oct 6, 202619:45 | Oct 2, 2026 | ARQQ | Chief Operating Officer | M · Exercise | — | +445 | 4,472 | +11% | — | ||
| Oct 6, 202619:44 | Oct 2, 2026 | ARQQ | Director | S · Sell | $24.47 | −121 | 105,831 | -0% | −$3K | ||
| Oct 6, 202619:44 | Oct 2, 2026 | ARQQ | Director | M · Exercise | — | +250 | 105,952 | +0% | — | ||
| Oct 6, 202619:43 | Oct 2, 2026 | ARQQ | General Manager-US | S · Sell | $24.47 | −494 | 466 | -51% | −$12K | ||
| Oct 6, 202619:43 | Oct 2, 2026 | ARQQ | General Manager-US | M · Exercise | — | +960 | 1,426 | +206% | — | ||
| Oct 6, 202619:42 | Oct 2, 2026 | ARQQ | Chief Executive Officer | S · Sell | $24.47 | −2,818 | 59,082 | -5% | −$69K | ||
| Oct 6, 202619:42 | Oct 2, 2026 | ARQQ | Chief Executive Officer | M · Exercise | — | +5,208 | 61,900 | +9% | — | ||
| Oct 6, 202619:41 | Oct 2, 2026 | ARQQ | Chief Revenue Officer | S · Sell | $24.47 | −506 | 20,915 | -2% | −$12K | ||
| Oct 6, 202619:41 | Oct 2, 2026 | ARQQ | Chief Revenue Officer | M · Exercise | — | +1,034 | 21,421 | +5% | — | ||
| Oct 6, 202619:40 | Oct 2, 2026 | ARQQ | Director | M · Exercise | — | +1,361 | 51,748 | +3% | — | ||
| Oct 6, 202619:37 | Oct 2, 2026 | ARQQ | Director | M · Exercise | — | +250 | 232,980 | +0% | — | ||
| Oct 5, 202620:29 | Oct 1, 2026 | ARQQ | Director | M · Exercise | — | +252 | 232,730 | +0% | — | ||
| Oct 5, 202620:28 | Oct 1, 2026 | ARQQ | Chief Revenue Officer | M · Exercise | — | +1,036 | 20,387 | +5% | — | ||
| Oct 5, 202620:27 | Oct 1, 2026 | ARQQ | Chief Executive Officer | M · Exercise | — | +5,209 | 56,692 | +10% | — | ||
| Oct 5, 202620:26 | Oct 1, 2026 | ARQQ | Director | M · Exercise | — | +1,364 | 50,387 | +3% | — | ||
| Oct 5, 202620:25 | Oct 1, 2026 | ARQQ | General Manager-US | M · Exercise | — | +960 | 960 | New | — | ||
| Oct 5, 202620:24 | Oct 1, 2026 | ARQQ | Director | M · Exercise | — | +252 | 105,702 | +0% | — | ||
| Oct 5, 202620:24 | Oct 1, 2026 | ARQQ | Chief Operating Officer | M · Exercise | — | +445 | 4,027 | +12% | — | ||
| Oct 5, 202620:21 | Oct 1, 2026 | ARQQ | General Counsel | M · Exercise | — | +1,151 | 10,613 | +12% | — | ||
| Sep 23, 202616:30 | Sep 22, 2026 | ARQQ | Director | X · Exercise | $2.50 | +4,600,000 | 8,942,448 | +106% | $11.5M |