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 Ritchie Garth reports his existing equity interests in the company. He directly holds 28,261 ordinary shares.
He also holds Ordinary Share Purchase Warrants exercisable at $2.5000 per share for 73,562 ordinary shares until September 30, 2026, plus several Restricted Stock Unit awards, each RSU representing a contingent right to receive one ordinary share with vesting in quarterly installments through 2028.
Arqit Quantum Inc. Chief Executive Officer Andrew Leaver has reported his initial ownership in a Form 3 filing. He holds restricted stock units representing 234,375 ordinary shares, each RSU convertible into one ordinary share at no exercise price. These RSUs vest quarterly from April 1, 2026 through January 1, 2029 on specified dates. He also directly owns 37,721 ordinary shares, showing both current equity and a sizable, time-based compensation stake.
Arqit Quantum Inc. executive Nilan Nicholas William, General Manager-US, reported his initial beneficial ownership on a Form 3. He holds restricted stock units tied to 8,631 ordinary shares, each RSU representing a contingent right to receive one ordinary share.
According to the vesting schedule, 2,879 RSUs are scheduled to vest on October 1, 2026. The remaining RSUs vest in equal quarterly installments on January 1, April 1, July 1, and October 1 of 2027 and 2028, reflecting a multi-year equity compensation structure.
Arqit Quantum Inc. reports leadership changes, including the resignation of director Nicola Barbiero from the Board and all its committees, effective March 2, 2026. The company states his departure is to pursue other commitments and is not due to any disagreement with the company or the Board.
Chief Financial Officer Nick Pointon has also advised that he intends to resign in May. Arqit has identified Rob Russell as his successor, who has already begun working part-time to ensure a transition period before formally assuming the CFO role in May. The company expresses its appreciation for the service of both Mr. Barbiero and Mr. Pointon.
Patrick Willcocks reported proposed dispositions of ARQQ common stock under Rule 144. The filing lists proposed sales dated 01/02/2026 of 1,913 shares and 01/06/2026 of 3,000 shares. The excerpt also shows broker details for Fidelity Brokerage Services LLC and two additional proposed issuer-originated sales dated 03/04/2026 of 69 and 451 shares.
ARQQ insider activity: a Form 144 filing reports share sales by Nicholas Pointon. The filing lists sales of 1,834 shares on 01/02/2026 for $41,929.64 and 3,418 shares on 02/20/2026 for $58,106.00. The filing also lists earlier stock option exercise entries with share counts dated 05/31/2024 (2,188), 01/10/2025 (2,818), and 10/15/2025 (1,576).
Fidelity Brokerage Services LLC filed a Form 144 reporting a proposed sale of 3,418 common shares acquired via a stock option exercise on 05/31/2024.
The filing also records a prior sale by Nicholas Pointon of 1,834 common shares on 01/02/2026 for $41,929.64. The securities are listed on NASDAQ.
Arqit Quantum Inc. is launching an at-the-market offering of up to $125,000,000 of its ordinary shares under a sales agreement with Cantor Fitzgerald & Co. and H.C. Wainwright & Co., LLC. The shares may be sold from time to time on Nasdaq or through other permitted methods at prevailing market, related or negotiated prices, and the agents will receive up to 3.0% of the gross sales price as compensation.
Arqit plans to use net proceeds for general corporate purposes, including continued product development and commercialization, potential acquisitions and other business opportunities, and repayment of indebtedness. As of September 30, 2025, it had 15,291,767 ordinary shares outstanding, so additional issuances under this program would dilute existing holders.
The company highlights risks that the actual number of shares sold and gross proceeds may be lower than $125.0 million, that investors buying at different times may pay different prices and experience varying dilution, and that future equity or equity-linked financings could further pressure the share price. As a foreign private issuer and emerging growth company, Arqit also benefits from reduced U.S. reporting requirements.
Heritage Assets SCSp, M Management S.A. and Manfredi Lefebvre d'Ovidio filed Amendment No. 6 to their Schedule 13D for Arqit Quantum Inc. (Ordinary Shares, CUSIP G0567U127) to update ownership after dilution and to disclose open-market sales of Business Combination Warrants. The Reporting Persons now beneficially own 10,214,252 Ordinary Shares, representing approximately 46.0% of 22,184,708 outstanding Ordinary Shares (post-Reverse Stock Split basis). The amendment lists multiple warrant sales between August 20 and September 15, 2025, with quantities and average prices disclosed. No other transactions or material changes were reported.
Arqit Quantum Inc. reported the results of its 2025 annual general meeting of shareholders. Holders of 7,483,305 ordinary shares as of the August 8, 2025 record date were represented, which was enough to constitute a quorum. Shareholders approved all proposals presented at the meeting.
They elected directors to serve on the board until the 2028 annual general meeting or until their successors are appointed and qualified. For example, Stephen Chandler received 7,402,283 votes for, 77,029 against, and 3,993 abstentions, while Nicola Barbiero received 6,664,761 votes for, 538,375 against, and 280,169 abstentions.