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. (symbol ARQQ) announces its 2026 Annual General Meeting of Shareholders and the upcoming expiry of its publicly traded warrants. The Annual General Meeting will be held on September 8, 2026 at 4:00 p.m. British Summer Time, in London and via webcast, for holders of ordinary shares of record as of August 13, 2026.
Shareholders will vote on an ordinary resolution to re-elect directors Carlo Calabria and Andrew Leaver for three-year terms, with one vote per ordinary share and a quorum requirement of one-third of ordinary shares present in person or by proxy. Arqit also states that its Nasdaq-listed public warrants (ticker ARQQW) will expire in accordance with their terms at 5:00 p.m. New York time on September 3, 2026; Nasdaq is expected to suspend trading after market close on September 2, 2026, and the warrants will be delisted.
Arqit Quantum Inc. director Carlo Calabria exercised 757 restricted share units on July 17, 2026, converting them on a one-for-one basis into 757 ordinary shares at $0.00 per share. The RSUs vested within the week of the grant date. Following the transaction, he directly owns 232,478 ordinary shares. Because Arqit Quantum is a foreign private issuer, these transactions are exempt from Sections 16(b) and 16(c) of the Exchange Act and were not made under a Rule 10b5-1 trading plan.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi exercised 673 restricted share units on July 17, 2026, receiving 673 ordinary shares at $0.0000 per share. This increased direct holdings to 49,023 ordinary shares, while a further 4,396,891 ordinary shares are reported as indirectly beneficially owned through Heritage Assets SCSP. The RSUs converted one-for-one into ordinary shares and vested within the week of grant. The company is treated as a foreign private issuer, so these transactions are exempt from Sections 16(b) and 16(c) of the Exchange Act, and the Rule 10b5-1 trading plan checkbox was not marked.
Arqit Quantum director Ritchie Garth converted 841 Restricted Share Units into 841 Ordinary Shares on July 17, 2026, at a stated price of 0.0000 per share, with the RSUs converting one-for-one and vesting within the week of grant. After this derivative exercise, he directly holds 105,450 Ordinary Shares. The company notes its status as a foreign private issuer, with these transactions exempt from Sections 16(b) and 16(c) of the Exchange Act.
Arqit Quantum Inc. reported that director Carlo Calabria received a grant of 757 Restricted Share Units (RSUs) on 2026-07-15 at a price of $0.0000 per unit. These RSUs convert into 757 ordinary shares on a one-for-one basis and vest within the week of the grant date. Following this award, Calabria holds 757 RSUs directly. As a foreign private issuer, Arqit Quantum states that these transactions are exempt from Sections 16(b) and 16(c) of the Securities Exchange Act.
Arqit Quantum Inc. reported that director Garth Ritchie received a grant of 841 Restricted Share Units on July 15, 2026. Each RSU converts into one ordinary share and vests within the week of the grant date. Following this award, he holds 841 RSUs directly.
Arqit Quantum Inc. reported that director Lefebvre d'Ovidio Manfredi received a grant of 673 Restricted Share Units on July 15, 2026. These RSUs convert into 673 ordinary shares on a one-for-one basis and vest within the week of the grant. Following the award, the director beneficially owns 673 RSUs directly. As Arqit Quantum is a foreign private issuer, these transactions are exempt from Sections 16(b) and 16(c) of the Exchange Act.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through Heritage Assets SCSp, reported open-market sales of 412 Business Combination Warrants on July 9–10, 2026 at a weighted average price of $1.19 per warrant. Following these transactions, the reporting person beneficially owns 352,421 Business Combination Warrants, equivalent to 14,096.84 ordinary shares if fully exercised. Each warrant has a $11.50 exercise price and, post reverse stock split, is exercisable for 0.04 ordinary share, requiring 25 warrants to obtain one whole share.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi reported that an associated entity, Heritage Assets SCSp, sold Business Combination Warrants linked to ARQQ ordinary shares. The entity sold 40 warrants on July 7, 2026 at a weighted average price of $1.17 and 110 warrants on July 8, 2026 at a weighted average price of $1.40 in open-market transactions.
Each Business Combination Warrant has an exercise price of $11.50 and, after a prior 1-for-25 reverse stock split, represents the right to purchase 0.04 ARQQ ordinary share, requiring 25 warrants to receive one whole share at an aggregate exercise price of $287.50 per share. Heritage Assets SCSp beneficially owns 362,721 warrants, equivalent to 14,508.84 ARQQ ordinary shares if fully exercised, so the 150 warrants sold represent a small portion of the reported warrant position.
Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through Heritage Assets SCSp, reported open-market sales of 133 Business Combination Warrants linked to ARQQ ordinary shares. The sales occurred on two dates at weighted average prices within disclosed ranges, and the reporting person continues to beneficially own a large remaining warrant position equivalent to 14,658.52 ordinary shares on a post-reverse-split basis.