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) 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).
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.