Welcome to our dedicated page for Arqit Quantum SEC filings (Ticker: ARQQW), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Arqit Quantum Inc. filings document foreign private issuer disclosures for a cybersecurity company focused on quantum-safe encryption. Form 6-K reports furnish preliminary financial results, revenue-recognition updates tied to customer contracts, product-delivery assumptions and cash-position disclosures.
The company’s SEC record also includes annual general meeting proxy materials, shareholder voting results, board and finance-leadership changes, and references to registration statements on Form S-8 and Form F-3. These filings cover governance, capital-market registration matters, ordinary-share voting mechanics and public-company reporting for Arqit’s Nasdaq-listed securities, including ARQQW warrants.
Arqit Quantum Inc. director-linked entity sells a small number of warrants. An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, sold a total of 188 Business Combination Warrants in open-market transactions, including 116 warrants at $1.60 and 72 warrants at $1.90 per warrant.
The reporting person beneficially owns 602,306 Business Combination Warrants, which, if fully exercised at an exercise price of $11.50 per warrant, would be equivalent to 24,092.24 Arqit ordinary shares on a post-reverse split basis. Each warrant entitles the holder to purchase 0.04 of an ordinary share, and holders must exercise 25 warrants to receive one whole share.
Arqit Quantum Inc. director-linked entity sells a small number of warrants. An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, sold a total of 188 Business Combination Warrants in open-market transactions, including 116 warrants at $1.60 and 72 warrants at $1.90 per warrant.
The reporting person beneficially owns 602,306 Business Combination Warrants, which, if fully exercised at an exercise price of $11.50 per warrant, would be equivalent to 24,092.24 Arqit ordinary shares on a post-reverse split basis. Each warrant entitles the holder to purchase 0.04 of an ordinary share, and holders must exercise 25 warrants to receive one whole share.
Arqit Quantum Inc. reported first-half fiscal 2026 results showing rapid revenue growth but significantly higher losses as it scales its quantum-safe cybersecurity business. Revenue rose to $623k from $67k, helped by more customer contracts and services recognized over time, plus $187k of grant income.
Administrative expenses increased to $33.9m from $20.2m, driven mainly by higher headcount and share-based compensation, leading to a net loss of $33.0m versus $19.4m a year earlier. Cash used in operations was $25.7m for the period.
Arqit ended March 31, 2026 with $28.9m in cash and cash equivalents and total assets of $36.2m, supported by equity funding. It issued 846,911 shares under its at-the-market equity program, raising about $18m before costs, and continues to invest in its Encryption Intelligence and NetworkSecure™ offerings amid growing post-quantum security demand.
Arqit Quantum Inc. reported first-half fiscal 2026 results showing rapid revenue growth but significantly higher losses as it scales its quantum-safe cybersecurity business. Revenue rose to $623k from $67k, helped by more customer contracts and services recognized over time, plus $187k of grant income.
Administrative expenses increased to $33.9m from $20.2m, driven mainly by higher headcount and share-based compensation, leading to a net loss of $33.0m versus $19.4m a year earlier. Cash used in operations was $25.7m for the period.
Arqit ended March 31, 2026 with $28.9m in cash and cash equivalents and total assets of $36.2m, supported by equity funding. It issued 846,911 shares under its at-the-market equity program, raising about $18m before costs, and continues to invest in its Encryption Intelligence and NetworkSecure™ offerings amid growing post-quantum security demand.
Arqit Quantum Inc. Chief Financial Officer Nicholas Pointon reported multiple share transactions involving company ordinary shares. On April 20, 2026, he executed an open-market sale of 435 ordinary shares at $15.87 per share.
On the same date, he also exercised 3,066 Employee Share Options at an exercise price of $0.0025 per share, receiving an equal number of ordinary shares. The options for these 3,066 shares were fully exercised, leaving no remaining options from this specific grant.
Arqit Quantum Inc. Chief Financial Officer Nicholas Pointon reported multiple share transactions involving company ordinary shares. On April 20, 2026, he executed an open-market sale of 435 ordinary shares at $15.87 per share.
On the same date, he also exercised 3,066 Employee Share Options at an exercise price of $0.0025 per share, receiving an equal number of ordinary shares. The options for these 3,066 shares were fully exercised, leaving no remaining options from this specific grant.
Arqit Quantum Inc. director-linked entity sells Business Combination Warrants. An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, made two open-market sales of Arqit Business Combination Warrants. It sold 110 warrants at $2.0000 per warrant on May 15, 2026 and 106 warrants at $2.0000 per warrant on May 18, 2026, totaling 216 warrants.
Each warrant has an exercise price of $11.50 and can be exercised to purchase 0.04 Arqit ordinary shares after a 25-for-1 reverse stock split. After these sales, the reporting person beneficially owns 607,006 warrants, equivalent to 24,280.24 Arqit ordinary shares on a post-reverse-split basis, so the sales represent a small portion of the overall warrant position.
Arqit Quantum Inc. director-linked entity sells Business Combination Warrants. An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, made two open-market sales of Arqit Business Combination Warrants. It sold 110 warrants at $2.0000 per warrant on May 15, 2026 and 106 warrants at $2.0000 per warrant on May 18, 2026, totaling 216 warrants.
Each warrant has an exercise price of $11.50 and can be exercised to purchase 0.04 Arqit ordinary shares after a 25-for-1 reverse stock split. After these sales, the reporting person beneficially owns 607,006 warrants, equivalent to 24,280.24 Arqit ordinary shares on a post-reverse-split basis, so the sales represent a small portion of the overall warrant position.
Arqit Quantum Inc. director-related entity sells small block of warrants
An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, sold a total of 127 Business Combination Warrants in open-market transactions at $2.10 per warrant on May 13 and May 14, 2026. These derivative securities each have an exercise price of $11.50 and, after Arqit’s reverse stock split, entitle the holder to purchase 0.04 ordinary share, requiring 25 warrants for one whole share at an aggregate exercise price of $287.50 per share. Following these sales, the reporting person continues to beneficially own 612,413 Business Combination Warrants, equivalent to 24,496.52 ordinary shares if fully exercised.
Arqit Quantum Inc. director-related entity sells small block of warrants
An entity associated with director Lefebvre d'Ovidio Manfredi, Heritage Assets SCSp, sold a total of 127 Business Combination Warrants in open-market transactions at $2.10 per warrant on May 13 and May 14, 2026. These derivative securities each have an exercise price of $11.50 and, after Arqit’s reverse stock split, entitle the holder to purchase 0.04 ordinary share, requiring 25 warrants for one whole share at an aggregate exercise price of $287.50 per share. Following these sales, the reporting person continues to beneficially own 612,413 Business Combination Warrants, equivalent to 24,496.52 ordinary shares if fully exercised.
Arqit Quantum Inc. insider-linked entity reported a small open-market sale of Business Combination Warrants. On 2026-05-12, Heritage Assets SCSp, associated with director Lefebvre d'Ovidio Manfredi, sold 13 Business Combination Warrants at $1.80 each. These warrants are exercisable at $11.50 per warrant to purchase 0.04 of an Arqit ordinary share and expire on 2026-09-03. After this transaction, the reporting person beneficially owns 615,597 Business Combination Warrants, equivalent to 24,623.88 Arqit ordinary shares on a post-reverse stock split basis.
Arqit Quantum Inc. insider-linked entity reported a small open-market sale of Business Combination Warrants. On 2026-05-12, Heritage Assets SCSp, associated with director Lefebvre d'Ovidio Manfredi, sold 13 Business Combination Warrants at $1.80 each. These warrants are exercisable at $11.50 per warrant to purchase 0.04 of an Arqit ordinary share and expire on 2026-09-03. After this transaction, the reporting person beneficially owns 615,597 Business Combination Warrants, equivalent to 24,623.88 Arqit ordinary shares on a post-reverse stock split basis.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi reported small open-market sales of Business Combination Warrants indirectly held through Heritage Assets SCSp. On two dates, a total of 293 warrants were sold at $2.10 per warrant, reducing the position slightly.
After these transactions, the reporting person beneficially owns 615,911 Business Combination Warrants, equivalent to 24,636.44 ordinary shares on a post-reverse-split basis. Each warrant has an exercise price of $11.50 and, following a 25-for-1 reverse stock split, represents the right to purchase 0.04 of an ordinary share, requiring 25 warrants for one whole share.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi reported small open-market sales of Business Combination Warrants indirectly held through Heritage Assets SCSp. On two dates, a total of 293 warrants were sold at $2.10 per warrant, reducing the position slightly.
After these transactions, the reporting person beneficially owns 615,911 Business Combination Warrants, equivalent to 24,636.44 ordinary shares on a post-reverse-split basis. Each warrant has an exercise price of $11.50 and, following a 25-for-1 reverse stock split, represents the right to purchase 0.04 of an ordinary share, requiring 25 warrants for one whole share.
Arqit Quantum Inc. director Garth Ritchie reported equity compensation activity involving Restricted Stock Units (RSUs) and ordinary shares. He exercised 1,887 RSUs, converting them into 1,887 ordinary shares at a stated price of $0.0000 per share, and his directly held ordinary shares increased to 30,687 after the transaction.
On the same date, he was granted 1,887 new RSUs that each convert into one ordinary share of ARQQ. According to the footnote, these RSUs vest immediately on the grant date and convert into ordinary shares on a one-for-one basis, meaning each RSU represents one future ordinary share once settled.
Arqit Quantum Inc. director Garth Ritchie reported equity compensation activity involving Restricted Stock Units (RSUs) and ordinary shares. He exercised 1,887 RSUs, converting them into 1,887 ordinary shares at a stated price of $0.0000 per share, and his directly held ordinary shares increased to 30,687 after the transaction.
On the same date, he was granted 1,887 new RSUs that each convert into one ordinary share of ARQQ. According to the footnote, these RSUs vest immediately on the grant date and convert into ordinary shares on a one-for-one basis, meaning each RSU represents one future ordinary share once settled.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi exercised restricted stock units and increased his share holdings. On May 6 and 7, 2026, he exercised RSUs covering 1,509 and 1,082 ordinary shares at $0.00 per share, receiving the same number of ordinary shares.
Following these exercises, his direct ownership in Arqit ordinary shares rose to 44,217 shares. The RSUs convert into ordinary shares on a one-for-one basis and vested immediately on the grant date. A separate entry shows 4,396,891 ordinary shares beneficially owned indirectly through Heritage Assets SCSP.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi exercised restricted stock units and increased his share holdings. On May 6 and 7, 2026, he exercised RSUs covering 1,509 and 1,082 ordinary shares at $0.00 per share, receiving the same number of ordinary shares.
Following these exercises, his direct ownership in Arqit ordinary shares rose to 44,217 shares. The RSUs convert into ordinary shares on a one-for-one basis and vested immediately on the grant date. A separate entry shows 4,396,891 ordinary shares beneficially owned indirectly through Heritage Assets SCSP.
Arqit Quantum Inc. director Carlo Calabria reported compensation-related equity activity rather than open-market trading. On May 6, 2026, he exercised 1,698 Restricted Stock Units (RSUs), which convert into ordinary shares on a one-for-one basis, and received 1,698 ordinary shares at a stated price of $0.00 per share. The filing also shows a new grant of 1,698 RSUs that vested immediately on the grant date. Following these transactions, Calabria holds 110,922 ordinary shares directly, plus the newly granted RSUs as an additional derivative position.
Arqit Quantum Inc. director Carlo Calabria reported compensation-related equity activity rather than open-market trading. On May 6, 2026, he exercised 1,698 Restricted Stock Units (RSUs), which convert into ordinary shares on a one-for-one basis, and received 1,698 ordinary shares at a stated price of $0.00 per share. The filing also shows a new grant of 1,698 RSUs that vested immediately on the grant date. Following these transactions, Calabria holds 110,922 ordinary shares directly, plus the newly granted RSUs as an additional derivative position.