ARQQ Rule 144 notice for 683 shares

ARQQ submitted a Rule 144 notice reporting the sale/vesting of common stock.

Rhea-AI Filing Summary

ARQQ submitted a Rule 144 notice reporting the sale/vesting of common stock. The filing lists 683 shares tied to a restricted stock vesting event dated 04/01/2026. It also reports 717 shares sold in the past three months with a trade date of 01/02/2026.

Key Figures

Shares linked to vesting: 683 shares Shares sold in past 3 months: 717 shares Listing exchange: NASDAQ

3 metrics

Shares linked to vesting 683 shares Restricted Stock Vesting on 04/01/2026

Shares sold in past 3 months 717 shares Trade date 01/02/2026

Listing exchange NASDAQ Exchange line in the filing

Key Terms

Rule 144, Restricted Stock Vesting, Form 144

3 terms

Rule 144 regulatory

"Form 144 notice reporting sale/transfer of restricted securities"

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.

Restricted Stock Vesting financial

"Securities To Be Sold line: 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.

Form 144 regulatory

"Header and filer information indicating the submission type"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What does ARQQ's Form 144 report?

The Form 144 notifies a sale/transfer under Rule 144 for ARQQ common stock. It lists 683 shares linked to restricted stock vesting on 04/01/2026 and a prior sale of 717 shares dated 01/02/2026.

Who is the reporting person on the ARQQ Form 144?

The filing shows Ben Wilder with an address in London as a reporting person. The notice attributes recent transactions to that individual and/or associated accounts as listed on the form.

When did the restricted stock vest reported in ARQQ's Form 144?

The restricted stock vesting date shown is 04/01/2026. The filing lists 683 shares in connection with that vesting event as the securities to be sold or reported.

How many ARQQ shares were sold in the past three months according to the form?

The form reports 717 shares sold during the past three months with a transaction date of 01/02/2026. The filing provides the sale count and associated trade date.

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

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Accepted by SEC EDGAR 04/02/2026 - 04:25 PM EDT 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	0002101275
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	Wilder Ben Simon
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	683	9101.73	15291767	04/02/2026	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	04/01/2026	Restricted Stock Vesting	Issuer			683	04/01/2026	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
Ben Wilder 3 Orchard Place London X0 SW1H 0BF	Common	01/02/2026	717	16392.34

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	04/02/2026
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/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Ben Wilder
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)