Arqit Quantum grants director 841 RSUs award

Arqit Quantum Inc. reported that director Garth Ritchie received a grant of 841 Restricted Share Units on July 15, 2026.

Rhea-AI Filing Summary

Arqit Quantum Inc. reported that director Garth Ritchie received a grant of 841 Restricted Share Units on July 15, 2026. Each RSU converts into one ordinary share and vests within the week of the grant date. Following this award, he holds 841 RSUs directly.

Insider Trade Summary

Grant/Award: 841 shares

Grant/Award 1 txn

Insider Ritchie Garth

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Share Units F1	841	$0.00	$0.00

Holdings After Transaction: Restricted Share Units — 841 contracts (Direct)

Footnotes (1)

1. F1. Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. The RSUs vest within the week of the grant date.

Key Figures

Restricted Share Units granted: 841 units Underlying ordinary shares: 841 shares Transaction price per RSU: $0.0000 per unit +1 more

4 metrics

Restricted Share Units granted 841 units Grant to director Garth Ritchie on July 15, 2026

Underlying ordinary shares 841 shares Each RSU converts into one Arqit Quantum ordinary share

Transaction price per RSU $0.0000 per unit Equity award granted at no cash cost per RSU

RSUs held after transaction 841 units Total Restricted Share Units directly held by Garth Ritchie after the grant

Key Terms

Restricted Share Units, foreign private issuer, Rule 3a12-3(b), Sections 16(b) and 16(c), +1 more

5 terms

Restricted Share Units financial

"Grant of 841 Restricted Share Units that convert into ordinary shares"

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

foreign private issuer regulatory

"Due to the issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b)"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

Rule 3a12-3(b) regulatory

"Status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Exchange Act"

Sections 16(b) and 16(c) regulatory

"Transactions in the issuer's securities are exempt from Sections 16(b) and 16(c) of the Act"

Power of Attorney regulatory

"Ex.24 - Power of Attorney referenced in the remarks section"

A power of attorney is a legal document that allows one person to make decisions and act on behalf of another person, often in financial or legal matters. It’s like giving someone a trusted helper or agent the authority to handle important tasks if you are unable to do so yourself. This matters to investors because it can impact how their assets are managed or transferred if they become unable to oversee their affairs.

FAQ

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

What insider transaction did ARQQ director Garth Ritchie report?

Director Garth Ritchie reported receiving a grant of 841 Restricted Share Units (RSUs). These RSUs convert into ordinary shares on a one-for-one basis and represent equity-based compensation rather than an open-market share purchase or sale.

When were the 841 RSUs for ARQQ granted to director Garth Ritchie?

The 841 RSUs were granted to director Garth Ritchie on July 15, 2026. According to the disclosure, these units vest within the week of the grant date, providing him with ordinary shares shortly after the award.

How do the ARQQ RSUs granted to Garth Ritchie convert into shares?

The granted RSUs convert into Arqit Quantum ordinary shares on a one-for-one basis. Once vested, each of the 841 RSUs delivers one ordinary share to the director, aligning his compensation with shareholder equity.

What is the vesting schedule of the 841 ARQQ RSUs granted?

The 841 RSUs granted to Garth Ritchie vest within the week of the grant date. This short vesting period means the RSUs become ordinary shares very quickly after July 15, 2026, assuming all conditions are satisfied.

What is Garth Ritchie’s ARQQ RSU holding after this grant?

After the reported transaction, Garth Ritchie directly holds 841 Restricted Share Units. These RSUs, once vested, will convert into 841 ordinary shares, reflecting his current equity-based position from this particular award.

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

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Accepted by SEC EDGAR 07/17/2026 - 06:22 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^*

Ritchie Garth

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/15/2026

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

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 Share Units	(1)	07/15/2026		A		841		(1)	(1)	Ordinary Shares	841	$0	841	D

Explanation of Responses:

1. Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. The RSUs vest within the week of the grant date.

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. Ex.24 - Power of Attorney

	/s/ Noleen McDonnell, as Attorney-in-Fact	07/17/2026
	** 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)