ARQQ Form 144: Insider to Sell 760 Shares Valued $38,137

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.

Accepted by SEC EDGAR 10/03/2025 - 03:16 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

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.

Positive

• 760 shares to be sold were acquired via restricted stock vesting, indicating the shares were issued as compensation

Negative

• Insider completed a sale of 25,000 shares on 07/18/2025 for $1,080,075.17, showing significant insider selling activity in the period

Insights

Insider Transactions Analyst

TL;DR: Insider proposes to sell 760 newly vested shares and previously sold 28,217 shares in the past three months.

The filing records a proposed sale of 760 shares acquired by restricted stock vesting on 10/02/2025 and slated to trade on 10/03/2025 via Fidelity. The document also discloses three completed sales totaling 28,217 shares for aggregate gross proceeds of $1,194,933.20. These figures are explicit in the filing and reflect the insider's executed and planned dispositions.

This is an informational disclosure under Rule 144; it does not by itself state any undisclosed company developments. The seller affirms they are not aware of undisclosed material adverse information.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the ARQQ Form 144 disclose about shares to be sold?

The Form 144 discloses a proposed sale of 760 common shares on 10/03/2025 via Fidelity with aggregate market value $38,136.57.

How were the 760 ARQQ shares acquired?

The filing states the 760 shares were acquired on 10/02/2025 through restricted stock vesting and were received as compensation.

What insider sales in the past three months are reported for ARQQ?

Reported sales in the past three months total 28,217 shares: 2,468 on 07/07/2025 for $81,567.89, 25,000 on 07/18/2025 for $1,080,075.17, and 749 on 10/02/2025 for $32,290.14.

Where will the proposed ARQQ sale be executed?

The proposed sale of 760 shares is planned to be executed on the NASDAQ through Fidelity Brokerage Services LLC.

Does the filer state any undisclosed material information in the Form 144?

By signing, the filer represents they do not know of any material adverse information about the issuer that has not been publicly disclosed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002035890
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Arqit Quantum Inc.
SEC File Number	001-40777
Address of Issuer	3 ORCHARD PLACE LONDON UNITED KINGDOM SW1H 0BF
Phone	44 203 91 70155
Name of Person for Whose Account the Securities are To Be Sold	Leaver Andrew
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	760	38136.57	11545354	10/03/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	10/02/2025	Restricted Stock Vesting	Issuer			760	10/02/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Andrew J. Leaver 3 Orchard Place London X0 SW1H 0BF	Common	07/07/2025	2468	81567.89
Andrew J. Leaver 3 Orchard Place London X0 SW1H 0BF	Common	07/18/2025	25000	1080075.17
Andrew J. Leaver 3 Orchard Place London X0 SW1H 0BF	Common	10/02/2025	749	32290.14

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	10/03/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Andrew J. Leaver
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)