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 (ARQQ) executed a term sheet to settle a previously disclosed U.S. federal putative class action for $7 million, pending approval by the United States District Court for the Eastern District of New York.
If the Court approves the settlement, the company will seek dismissal of a related putative class action in New York State Court, which is currently stayed because it falls within the settlement classes of the federal case. The report also states that this information is incorporated by reference into Arqit’s effective registration statements on Form S-8 and Form F-3.
Arqit Quantum Inc. has furnished a Form 6-K to provide investors with a press release containing select unaudited preliminary financial results for the six months and full fiscal year ended September 30, 2025. The company explains that this press release, dated October 9, 2025 and attached as Exhibit 99.1, presents preliminary figures for the second half and full year of fiscal 2025. Arqit also clarifies that the information in this Form 6-K, including the exhibit, is being furnished rather than filed and is not automatically incorporated into other securities law filings unless specifically referenced.
Arqit Quantum Inc. reported a Form 144 notice disclosing proposed sales by an insider. The filing shows 859 common shares that vested on 10/03/2025 and are listed for proposed sale on 10/06/2025 through Fidelity Brokerage Services LLC with an aggregate market value of $42,247.07. The filer records total outstanding common shares of 11,545,354.
The same insider sold three prior blocks in the past three months: 3 shares on 09/03/2025 for $84.99, 811 shares on 10/02/2025 for $34,963.02, and 820 shares on 10/03/2025 for $41,147.36. The vested shares are described as compensation and the filer attests they know of no undisclosed material adverse information.
Arqit Quantum Inc. (ARQQ) submitted a Form 144 notifying the proposed sale of 1,419 common shares with an aggregate market value of $69,788.83, planned on 10/06/2025 via NASDAQ. The shares were acquired on 10/03/2025 through restricted stock vesting and were issued as compensation. The filing also lists multiple prior sales by the same person in 2025, including 373 shares on 07/07/2025, 2,000 shares on 07/18/2025, 3,000 shares on 07/21/2025, 1,336 shares on 10/02/2025, and 1,353 shares on 10/03/2025, with individual gross proceeds shown for each sale. The filer certifies no undisclosed material adverse information and includes the standard Rule 144 representations.
Notice of proposed sale: A Form 144 was filed for Arqit Quantum Inc. (ARQQ) reporting an intended sale of 796 common shares through Fidelity Brokerage Services LLC on 10/06/2025 with an aggregate market value of $39,148.63. The shares were acquired by the filer via restricted stock vesting on 10/03/2025 and were issued as compensation.
The filing also lists prior sales by the same person, Andrew J. Leaver, in the past three months totaling 28,977 shares for gross proceeds of $1,232,069.77. The issuer reports 11,545,354 shares outstanding. The filer certifies they are not aware of any undisclosed material adverse information about the issuer.
Form 144 filed for Arqit Quantum Inc. (ARQQ) reports a proposed sale of 1,158 common shares through Fidelity Brokerage Services LLC with an aggregate market value of $56,952.41 and approximately 11,545,354 shares outstanding. The shares subject to this notice were acquired on 10/03/2025 via restricted stock vesting and paid as compensation. The filing shows an approximate sale date of 10/06/2025.
The filer (identified elsewhere in the form) also reported three prior sales in the past three months: 956 shares on 07/07/2025 for $31,595.99, 1,091 shares on 10/02/2025 for $47,034.10, and 1,105 shares on 10/03/2025 for $55,448.57. The signer certifies there is no undisclosed material adverse information.
Arqit Quantum Inc. (ARQQ) filing a Form 144 shows an insider sale notice for 1,409 common shares acquired by restricted stock vesting on 10/03/2025 and offered for sale through Fidelity Brokerage Services. The filing lists the aggregate market value of the 1,409 shares as $69,297.02 and notes 11,545,354 shares outstanding, implying the offered block is a small fraction of the float. The filer also disclosed three prior sales in the last three months totaling 3,005 shares for gross proceeds of $135,705.71. The notice includes the customary representation that the seller is not aware of any undisclosed material adverse information.
Arqit Quantum Inc. (ARQQ) filed a Form 144 reporting a proposed sale of 1,345 common shares held by the reported person through Fidelity Brokerage Services LLC on 10/03/2025. The filing shows an aggregate market value of $67,491.69 for the shares and lists 11,545,354 shares outstanding. The securities were acquired on 10/02/2025 by restricted stock vesting and paid as compensation. The filer also disclosed two recent sales: 333 shares on 07/07/2025 for $11,005.72 and 1,327 shares on 10/02/2025 for $57,208.30. The notice includes the standard representation that the seller is not aware of undisclosed material adverse information.
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).