Welcome to our dedicated page for Arqit Quantum SEC filings (Ticker: ARQQ), 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 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) received an amended Schedule 13G from Notion Capital III reporting beneficial ownership of 1,812,206 Ordinary Shares, representing 10.0% of the class. All shares are held of record by Liberum Wealth Limited for the account of Notion Capital III LP, including 124 shares held by Notion Platform Limited and 76,381 shares issuable upon conversion of Registered Direct Warrants at $19.50 per share, all after a Reverse Share Split. On June 26, 2026, Notion Capital III exercised in full 600,000 September 2024 Warrants at $2.50 per share, resulting in the issuance of 600,000 Ordinary Shares, and on June 24, 2026 it sold 58,263 Ordinary Shares from previously held shares. Notion Capital III reports shared voting and dispositive power over all 1,812,206 shares and no sole power.
Arqit Quantum Inc. (ARQQ) reports the results of its 2026 annual general meeting of shareholders held on September 8, 2026. Holders of 9,421,171 ordinary shares as of the August 13, 2026 record date were represented in person or by proxy, constituting a quorum, and all proposals were approved. Shareholders reappointed directors, including Carlo Calabria and Andrew Leaver, to serve until the 2029 AGM or until their successors are appointed and qualified. The information in this report is also incorporated by reference into the company’s existing Form S-8 and Form F-3 registration statements, except as otherwise indicated.
Arqit Quantum Inc. (ARQQ) is having its warrants removed from listing and registration on the Nasdaq Stock Market LLC under Section 12(b) of the Securities Exchange Act of 1934. Nasdaq states it has complied with its rules to strike this class of securities, and Arqit has complied with the Exchange’s rules and the requirements for voluntary withdrawal.
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.