Arqit Quantum (ARQQ) CRO sells shares after RSU vesting and conversion

Rhea-AI Filing Summary

Arqit Quantum Inc.’s Chief Revenue Officer Jennifer Bers reported an exercise-and-sell transaction in company equity. On June 22, 2026, she exercised Restricted Stock Units that converted on a one-for-one basis into 15,000 Ordinary Shares at an exercise price of $0.00 per share as the RSUs vested.

That same day, she sold 8,288 Ordinary Shares in an open-market sale at $21.42 per share. Following these transactions, she directly holds 6,712 Ordinary Shares. The filing shows no remaining RSU derivative position after the conversion.

Insider Trade Summary

Net Seller: 8,288 shares ($177,529)

Net Sell 3 txns

Insider Bers Jennifer

Role Chief Revenue Officer

Sold 8,288 shs ($178K)

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	15,000	$0.00	--
Exercise	Ordinary Shares	15,000	$0.00	--
Sale	Ordinary Shares	8,288	$21.42	$178K

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Ordinary Shares — 15,000 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 8,288 shares Sale price: $21.42/share RSUs converted: 15,000 shares +2 more

5 metrics

Shares sold 8,288 shares Ordinary Shares sold in open-market sale on June 22, 2026

Sale price $21.42/share Price per Ordinary Share in open-market sale

RSUs converted 15,000 shares Restricted Stock Units converting one-for-one into Ordinary Shares

Exercise price $0.00/share Conversion price for RSUs into Ordinary Shares

Shares held after 6,712 shares Direct Ordinary Share holdings after transactions

Key Terms

Restricted Stock Units, open-market sale, derivative security, one-for-one basis, +1 more

5 terms

Restricted Stock Units financial

"The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

open-market sale financial

"transaction_action": "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.

derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

one-for-one basis financial

"The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis."

vested financial

"The RSUs vested on June 22, 2026."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/24/2026 - 04:27 PM Accepted by SEC EDGAR 06/24/2026 - 04:26 PM 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^*

Bers Jennifer

(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)
	Chief Revenue Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026

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	06/22/2026		M		15,000	A	$0(1)	15,000	D
Ordinary Shares	06/22/2026		S		8,288	D	$21.42	6,712	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
Restricted Stock Units	(1)	06/22/2026		M			15,000	(1)	(1)	Ordinary Shares	15,000	$0	0	D

Explanation of Responses:

1. The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. The RSUs vested on June 22, 2026.

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	06/24/2026
	** 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 ARQQ’s Chief Revenue Officer report?

Arqit Quantum’s Chief Revenue Officer Jennifer Bers reported an exercise-and-sell transaction. She exercised Restricted Stock Units into 15,000 Ordinary Shares, then sold 8,288 Ordinary Shares in an open-market sale, leaving her with 6,712 Ordinary Shares held directly after the transactions.

How many Arqit Quantum (ARQQ) shares did the CRO sell and at what price?

Jennifer Bers sold 8,288 Ordinary Shares of Arqit Quantum at $21.42 per share in an open-market sale. This transaction formed part of a broader exercise-and-sell pattern linked to recently vested Restricted Stock Units converting into Ordinary Shares.

What RSU activity did the ARQQ Form 4 filing disclose for the CRO?

The Form 4 disclosed that Restricted Stock Units held by Jennifer Bers converted into 15,000 Arqit Quantum Ordinary Shares on a one-for-one basis. The footnote states these RSUs vested on June 22, 2026, with an exercise price of $0.00 per share at vesting.

How many Arqit Quantum shares does the CRO hold after these transactions?

After the reported transactions, Jennifer Bers directly holds 6,712 Arqit Quantum Ordinary Shares. This figure reflects her position following the conversion of 15,000 Restricted Stock Units into Ordinary Shares and the same-day sale of 8,288 Ordinary Shares in the open market.

Were Jennifer Bers’s ARQQ transactions direct or through another entity?

The transactions were reported as directly held, with ownership type coded as direct. No footnotes indicate that the shares were controlled by a separate trust, LLC, or related entity, so the activity is attributed to Jennifer Bers personally rather than to an affiliated organization.