Arqit Quantum Inc. filings document foreign private issuer disclosures for a quantum-safe encryption software company listed on Nasdaq under ARQQ and ARQQW. Recent Form 6-K reports furnish preliminary financial results, revenue-recognition context tied to customer contracts, board and audit committee changes, executive-transition matters, and litigation contingency updates.
The filing record also references registration statements on Form S-8 and Form F-3, linking current reports to equity compensation and securities-registration disclosures. These documents frame Arqit’s public-company reporting around governance, capital structure, operating results, litigation contingencies and material events associated with its cybersecurity business.
Arqit Quantum Inc. (ARQQ) director Garth Ritchie converted 248 restricted share units into ordinary shares on October 5, 2026; the RSUs convert one-for-one. The corresponding ordinary-share records report 248 shares acquired. Ritchie also sold 127 ordinary shares at $23.7847 per share that day. No Rule 10b5-1 plan is reported.
Arqit Quantum Inc. Chief Operating Officer Ben Simon Wilder reported converting 277 and 166 restricted share units into the same numbers of ordinary shares, and selling 233 ordinary shares, on October 5, 2026. The sale price was $23.7847 per share; no Rule 10b5-1 plan is reported. The RSUs vest quarterly in equal installments, with the two schedules extending through October 2027 and October 2028.
Arqit Quantum Inc. General Counsel Patrick Willcocks converted 1,148 restricted share units into 1,148 ordinary shares on October 5, 2026, and sold 588 ordinary shares at $23.7847 per share that day. The units convert one-for-one into ordinary shares; the cited vesting schedules specify equal quarterly installments, with the longest schedule extending through October 1, 2028. No Rule 10b5-1 plan is reported.
Arqit Quantum Inc. General Counsel Patrick Willcocks converted 1,148 restricted share units into 1,148 ordinary shares on October 2, 2026, on a one-for-one basis. He also sold 557 ordinary shares that day at $24.4743 per share. The reported ordinary-share acquisitions were at $0.0000 per share. The 694-, 149-, and 305-unit awards have quarterly vesting schedules ending October 1, 2027, July 1, 2027, and October 1, 2028, respectively.
Arqit Quantum Inc. Chief Operating Officer Ben Simon Wilder reported converting 278 and 167 restricted share units into the same number of ordinary shares on October 2, 2026; the units convert one-for-one. He also sold 92 and 129 ordinary shares that day at $24.4743 per share, totaling 221 shares across the two sale transactions. No Rule 10b5-1 plan is reported for the sales.
Arqit Quantum Inc. director Garth Ritchie converted 250 restricted share units into ordinary shares on October 2, 2026; the units convert one-for-one and vest quarterly in equal installments. On the same date, he sold 121 ordinary shares at $24.4743 per share. No Rule 10b5-1 plan is reported.
Arqit Quantum Inc. General Manager-US Nicholas William Nilan converted 960 restricted share units into 960 ordinary shares on October 2, 2026, on a one-for-one basis. He sold 494 ordinary shares at $24.4743 per share that day; no Rule 10b5-1 plan is reported. The derivative transaction row reports 6,711 restricted share units following the transaction.
Arqit Quantum Inc. Chief Executive Officer Andrew Leaver converted 5,208 restricted share units into 5,208 ordinary shares on October 2, 2026, on a one-for-one basis. He also sold 2,818 ordinary shares at 24.4743 per share that day. His reported post-transaction balance was 192,708 RSUs, which vest in quarterly installments through October 1, 2029. No Rule 10b5-1 plan is reported.
Arqit Quantum Inc. Chief Revenue Officer Paul Feenan reported that on October 2, 2026, 1,034 restricted share units converted into ordinary shares on a one-for-one basis, and he sold 506 ordinary shares at 24.4743 per share. No Rule 10b5-1 plan is reported.
Arqit Quantum Inc. director d'Ovidio Manfredi Lefebvre converted 1,361 restricted share units into 1,361 ordinary shares on October 2, 2026; the ordinary shares were reported at $0.0000 per share. The RSUs convert into ordinary shares on a one-for-one basis. Their quarterly equal-installment vesting schedules include dates through July 1, 2027, October 1, 2027, and October 1, 2028.