Rule 144 notice: ARQQ common stock sale

Filer (Fidelity Brokerage Services LLC) submitted a Rule 144 notice concerning proposed transactions in Common Stock of the issuer with symbol ARQQ.

Rhea-AI Filing Summary

Filer (Fidelity Brokerage Services LLC) submitted a Rule 144 notice concerning proposed transactions in Common Stock of the issuer with symbol ARQQ. The filing lists a Restricted Stock Vesting event dated 07/01/2026 and discloses prior sales: 1,790 shares for $23,853.72 on 04/02/2026 and 4,000 shares for $117,920.00 on 06/30/2026.

Insights

Securities Filings Analyst

Rule 144 notice lists vesting and prior disposals of ARQQ common stock.

The filing records a Restricted Stock Vesting dated 07/01/2026 and two disclosed dispositions: 1,790 shares for $23,853.72 on 04/02/2026 and 4,000 shares for $117,920.00 on 06/30/2026. These figures are transaction-level disclosures tied to Rule 144 mechanics.

Timing and cash‑flow treatment for the proposed sale are not detailed beyond the vesting date; subsequent filings would show whether sales proceed under Rule 144 conditions. The filing is administrative in nature and does not itself execute trades.

Key Figures

Prior disposition 1: 1,790 shares Prior disposition 2: 4,000 shares Restricted Stock Vesting date: 07/01/2026

3 metrics

Prior disposition 1 1,790 shares sale on 04/02/2026 for $23,853.72

Prior disposition 2 4,000 shares sale on 06/30/2026 for $117,920.00

Restricted Stock Vesting date 07/01/2026 listed as "Restricted Stock Vesting" under Compensation

Key Terms

Restricted Stock Vesting, Rule 144, Compensation

3 terms

Restricted Stock Vesting financial

"Common | 07/01/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Rule 144 regulatory

"Form type listed as 144: Filer Information"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Compensation financial

"2009 | 07/01/2026 | Compensation"

FAQ

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

What does the ARQQ Form 144 disclose about recent sales?

The filing shows two prior dispositions: 1,790 shares for $23,853.72 on 04/02/2026 and 4,000 shares for $117,920.00 on 06/30/2026. These are reported past sales tied to the Rule 144 notice.

Does the filing state when restricted shares vest for ARQQ?

Yes. The filing lists a Restricted Stock Vesting event dated 07/01/2026 described as Compensation, indicating the shares became eligible under the issuer's compensation vesting schedule.

Who is named as the filer in the ARQQ Form 144?

The filing identifies Fidelity Brokerage Services LLC with an address at 900 Salem Street, Smithfield, RI as the filer and references the NASDAQ listing for the common stock.

Does the Form 144 show proceeds or planned sale amount for ARQQ?

The excerpt lists specific past sale proceeds for two transactions but does not state an aggregate planned sale amount or detailed proceeds treatment for the proposed sale under Rule 144.

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

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Accepted by SEC EDGAR 07/02/2026 - 05:00 PM Learn about SEC filing dates

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	0001967211
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	Willcocks Patrick
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

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	2009	50632.02	15291767	07/02/2026	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	07/01/2026	Restricted Stock Vesting	Issuer			2009	07/01/2026	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
Patrick Willcocks 3 Orchard Place London X0 SW1H 0BF	Common	04/02/2026	1790	23853.72
Patrick Willcocks 3 Orchard Place London X0 SW1H 0BF	Common	06/30/2026	4000	117920.00

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	07/02/2026
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/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Patrick Willcocks
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)