Arqit Quantum (ARQQ) general counsel sells 4,000 shares in open market

Rhea-AI Filing Summary

Arqit Quantum Inc. General Counsel Patrick Willcocks reported an open-market sale of 4,000 Ordinary Shares of the company. The shares were sold at a price of $29.48 per share on June 30, 2026. Following this transaction, Willcocks directly holds 7,916 Ordinary Shares of Arqit Quantum, indicating he retains a meaningful personal stake after the sale.

Insider Trade Summary

Net Seller: 4,000 shares ($117,920)

Net Sell 1 txn

Insider Willcocks Patrick

Role General Counsel

Sold 4,000 shs ($118K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares	4,000	$29.48	$118K

Holdings After Transaction: Ordinary Shares — 7,916 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 4,000 shares Sale price: $29.48 per share Shares held after transaction: 7,916 shares +1 more

4 metrics

Shares sold 4,000 shares Ordinary Shares sold on June 30, 2026

Sale price $29.48 per share Open-market sale price for Ordinary Shares

Shares held after transaction 7,916 shares Direct ownership following June 30, 2026 sale

Net buy/sell shares -4,000 shares Net disposition in this Form 4

Key Terms

Ordinary Shares, open-market sale, Form 4, transaction code "S"

4 terms

Ordinary Shares financial

"The transaction involved 4,000 Ordinary Shares of Arqit Quantum."

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

open-market sale financial

"The filing describes the transaction as an open-market sale."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"The sale was disclosed in a Form 4 insider trading report."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

transaction code "S" regulatory

"The transaction is identified by transaction code "S" for a sale."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/02/2026 - 11:16 AM Accepted by SEC EDGAR 07/02/2026 - 11:16 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Willcocks Patrick

(Last) (First) (Middle)

3 ORCHARD PLACE

(Street)

LONDON SW1H 0BF

(City) (State) (Zip)

UNITED KINGDOM

(Country)

2. Issuer Name and Ticker or Trading Symbol
Arqit Quantum Inc. [ ARQQ ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	06/30/2026		S		4,000	D	$29.48	7,916	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the "Act"), the reporting person's transactions in the issuer's securities are exempt from Sections 16(b) and 16(c) of the Act.

	/s/ Noleen McDonnell, as Attorney-in-Fact	07/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Arqit Quantum (ARQQ) report for Patrick Willcocks?

Arqit Quantum reported that General Counsel Patrick Willcocks sold 4,000 Ordinary Shares in an open-market transaction. The sale occurred at a price of $29.48 per share and was disclosed in a Form 4 insider trading report.

At what price did Patrick Willcocks sell Arqit Quantum (ARQQ) shares?

Patrick Willcocks sold his Arqit Quantum Ordinary Shares at $29.48 per share. This price reflects the execution level for the 4,000-share open-market sale reported in the Form 4 filing for the transaction on June 30, 2026.

How many Arqit Quantum (ARQQ) shares did Patrick Willcocks sell in this Form 4?

Patrick Willcocks sold 4,000 Ordinary Shares of Arqit Quantum. The transaction was classified as an open-market sale, identified by transaction code “S,” and represents a net disposition of shares according to the Form 4 transaction summary.

How many Arqit Quantum (ARQQ) shares does Patrick Willcocks hold after the sale?

After the reported transaction, Patrick Willcocks directly holds 7,916 Arqit Quantum Ordinary Shares. This post-transaction balance is disclosed in the Form 4 and shows his remaining personal equity position following the 4,000-share sale.

Was the Arqit Quantum (ARQQ) insider trade an open-market sale or another type?

The transaction was an open-market sale of Ordinary Shares. The Form 4 describes the action as an “open-market sale” with transaction code “S,” meaning the shares were sold in the public market rather than through a private award or tax withholding.