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.
The Arqit Quantum Inc. (ARQQ) SEC filings page on Stock Titan provides access to the company’s U.S. regulatory disclosures as a foreign private issuer. Arqit files reports such as Form 6‑K current reports and incorporates information into registration statements on Forms S‑8 and F‑3. These filings give investors insight into Arqit’s quantum-safe encryption business, financial performance, risk factors and legal matters.
Form 6‑K filings may include press releases on financial results, such as preliminary and full fiscal year revenue, contract activity, cash and cash equivalents, and commentary from management. They can also report material events, including legal developments. For example, an October 2025 Form 6‑K describes a term sheet to settle a previously disclosed putative class action lawsuit in the United States District Court for the Eastern District of New York and notes the intention to seek dismissal of a related state court action following court approval of the settlement.
Through its registration statements on Form F‑3 and Form S‑8, Arqit provides information relevant to securities offerings and equity compensation plans. These documents, together with annual reports on Form 20‑F or Form 40‑F (as applicable) and additional 6‑K submissions, outline the company’s business description, risk factors, corporate structure and governance.
On Stock Titan, users can review Arqit’s SEC filings in chronological order and use AI-powered tools to obtain summaries and context for lengthy documents such as annual reports or complex current reports. The platform helps highlight key sections related to revenue, contracts, litigation, capital markets activity and regulatory disclosures, while also making it easier to track updates that may affect the ARQQ investment thesis.
Arqit Quantum Inc. filed a Form 144 reporting a proposed sale of 820 common shares valued at an aggregate market value of $41,147.36. The shares were acquired on 10/02/2025 through Restricted Stock Vesting as compensation and the filing lists the approximate sale date as 10/03/2025 on NASDAQ. The filing also discloses two recent sales by the same person: 3 shares on 09/03/2025 for $84.99 and 811 shares on 10/02/2025 for $34,963.02. The notice includes the seller's attestation that they have no undisclosed material information.
Arqit Quantum Inc. insider Patrick Willcocks filed a Form 144 proposing to sell 1,353 restricted common shares that vested on 10/02/2025, with an aggregate market value of $67,893.13 and an approximate sale date of 10/03/2025. The filing lists the broker as Fidelity Brokerage Services LLC on NASDAQ. The notice also discloses four prior sales by the same individual within the past three months totaling 6,709 shares for aggregate gross proceeds of $315,463. + (individual sales: 373 on 07/07/2025, 2,000 on 07/18/2025, 3,000 on 07/21/2025, and 1,336 on 10/02/2025).
This Form 144 shows a proposed sale of 760 shares of common stock of the issuer on 10/03/2025 through Fidelity Brokerage Services LLC on the NASDAQ, with an aggregate market value of $38,136.57. The 760 shares were acquired by the seller via restricted stock vesting on 10/02/2025 and were issued as compensation. The filing also discloses three prior sales by the same person in the past three months: 2,468 shares on 07/07/2025 for $81,567.89, 25,000 shares on 07/18/2025 for $1,080,075.17, and 749 shares on 10/02/2025 for $32,290.14. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.
Arqit Quantum Inc. (ticker ARQQ) submitted a Form 144 reporting a proposed sale of 1,105 common shares held at Fidelity Brokerage Services with an aggregate market value of $55,448.57, intended for sale on or about 10/03/2025 on NASDAQ. The shares were acquired through restricted stock vesting on 10/02/2025 and were paid as compensation. The filing also discloses two recent sales by the same person: 956 shares sold on 07/07/2025 for $31,595.99 and 1,091 shares sold on 10/02/2025 for $47,034.10. By signing, the seller represents no undisclosed material adverse information about the issuer.
Insider sale notice for ARQQ: The Form 144 shows a proposed sale of 811 common shares of Arqit Quantum Inc. (to be executed through Fidelity Brokerage Services) with an aggregate market value of $34,963.02 and an approximate sale date of 10/02/2025. Those 811 shares were acquired by the filer on 10/01/2025 through restricted stock vesting as compensation and payment was recorded on the same date. The filing also discloses prior small sales by the same person in the past three months: 238 shares sold for $8,151.83 on 07/02/2025 and 3 shares sold for $84.99 on 09/03/2025. The filer certifies they are not aware of any undisclosed material adverse information about the issuer.
Form 144 notice for Arqit Quantum Inc. (ARQQ): An upcoming sale of 749 common shares is proposed to be executed through Fidelity Brokerage Services on 10/02/2025 with an aggregate market value of $32,290.14. The filing shows these 749 shares were acquired on 10/01/2025 on vesting of restricted stock and were received as compensation. The issuer reports 11,545,354 shares outstanding.
The filing also discloses prior sales by the same person, Andrew J. Leaver: 2,468 shares sold on 07/07/2025 for $81,567.89 and 25,000 shares sold on 07/18/2025 for $1,080,075.17. The notice includes the required declaration that the seller is not aware of undisclosed material adverse information.
Arqit Quantum Inc. (ARQQ) filing a Form 144 notifies a proposed sale of 1,091 common shares valued at $47,034.10 to be sold through Fidelity Brokerage Services on the NASDAQ with an approximate sale date of 10/02/2025. The shares were acquired on 10/01/2025 by restricted stock vesting and were paid as compensation. The filing also discloses a prior sale by the same person of 956 shares on 07/07/2025 for $31,595.99. The signer certifies no undisclosed material information.
The filing is a Form 144 notice for Arqit Quantum Inc. (ARQQ) reporting a proposed sale of 1,336 common shares through Fidelity Brokerage Services LLC on 10/02/2025. The filing states an aggregate market value of $57,596.30 and shows 11,545,354 shares outstanding. The shares were acquired on 10/01/2025 via restricted stock vesting with payment characterized as compensation. The form also discloses three sales by Patrick Willcocks during July 2025 totaling 5,373 shares for gross proceeds of $249,857.77. The filer attests they are not aware of undisclosed material adverse information about the issuer.
Arqit Quantum Inc. insider filings show a proposed resale of 1,327 common shares on 10/02/2025 through Fidelity Brokerage Services (NASDAQ), with an aggregate market value of $57,208.30. The shares were acquired on 10/01/2025 by restricted stock vesting from the issuer and were paid as compensation. The filing lists 11,545,354 shares outstanding for the class. The same filer previously sold 333 shares on 07/07/2025 for $11,005.72. The filer certifies they do not possess undisclosed material adverse information about the issuer.
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.
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