Arqit director entity sells 1,114 warrants

Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through affiliated entity Heritage Assets SCSp, reported open-market sales of a total of 1,114 Business Combination Warrants at about $1.20 each on June 24–25, 2026.

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Form Type

Rhea-AI Filing Summary

Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through affiliated entity Heritage Assets SCSp, reported open-market sales of a total of 1,114 Business Combination Warrants at about $1.20 each on June 24–25, 2026.

These derivative securities each give the right to purchase 0.04 Arqit ordinary share at an exercise price of $11.50, and at least 25 warrants must be exercised to receive one whole share. After these sales, the reporting person beneficially owns 385,402 warrants, equivalent to 15,416.08 ordinary shares on a post-reverse-split basis, indicating only a small portion of the warrant position was sold.

Insider Trade Summary

Net Seller: 1,114 shares

Net Sell 2 txns

Insider Lefebvre d'Ovidio Manfredi

Role Director

Sold 1,114 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Business Combination Warrants (right to buy)	455	$1.20	$546.00
Sale	Business Combination Warrants (right to buy)	659	$1.20	$790.80

Holdings After Transaction: Business Combination Warrants (right to buy) — 31,287.36 contracts (Indirect, Beneficially owned through Heritage Assets SCSp)

Footnotes (1)

F1. On September 19, 2024, Arqit Quantum Inc. (ARQQ) announced the implementation of a reverse stock split whereby every 25 outstanding ARQQ ordinary shares were consolidated into one ordinary share, par value $0.0025 per share. Each Business Combination Warrant has an exercise price of $11.50 and can be exercised at any time, at the holder's election, to purchase 0.04 of an ARQQ ordinary share on a post-reverse stock split basis, and cannot be exercised for fractional shares. Accordingly, on a post-reverse stock split basis holders of Business Combination Warrants are required to exercise at least 25 Business Combination Warrants in order to receive one whole ARQQ ordinary share at an aggregate exercise price of $287.50 per whole ARQQ ordinary share. The reporting person beneficially owns 385,402 Business Combination Warrants, which, if exercised in full, would be equivalent to 15,416.08 ARQQ ordinary shares on a post-reverse stock split basis.

Key Figures

Warrants sold: 1,114 Business Combination Warrants Sale price: $1.20 per warrant Remaining warrants: 385,402 warrants +3 more

6 metrics

Warrants sold 1,114 Business Combination Warrants Open-market sales on June 24–25, 2026

Sale price $1.20 per warrant Reported transaction price per warrant

Remaining warrants 385,402 warrants Beneficially owned after transactions

Ordinary share equivalent 15,416.08 shares Equivalent if remaining warrants fully exercised

Exercise price $11.50 per ordinary share Business Combination Warrant exercise price

Warrant expiration September 3, 2026 Expiration date of the warrants

Key Terms

Business Combination Warrants, reverse stock split, exercise price, Beneficially owned through Heritage Assets SCSp, +1 more

5 terms

Business Combination Warrants financial

"Business Combination Warrants (right to buy)"

reverse stock split financial

"announced the implementation of a reverse stock split whereby every 25"

A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.

exercise price financial

"Each Business Combination Warrant has an exercise price of $11.50"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

Beneficially owned through Heritage Assets SCSp financial

"nature_of_ownership: Beneficially owned through Heritage Assets SCSp"

ordinary shares financial

"would be equivalent to 15,416.08 ARQQ ordinary shares"

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.

FAQ

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

What insider transactions did Arqit Quantum (ARQQ) report in this Form 4?

Arqit Quantum reported that an entity associated with director Lefebvre d'Ovidio Manfredi sold 1,114 Business Combination Warrants in open-market transactions at about $1.20 per warrant over two days, reducing but not eliminating its warrant position.

Who executed the warrant sales reported for Arqit Quantum (ARQQ)?

The sales are attributed to Heritage Assets SCSp, an entity through which director Lefebvre d'Ovidio Manfredi beneficially owns Business Combination Warrants. The filing classifies the holdings as indirect ownership and describes Heritage Assets SCSp as the beneficial holder of the warrants.

How many Arqit Quantum (ARQQ) warrants were sold and at what price?

The filing shows two open-market sales totaling 1,114 Business Combination Warrants, with 659 sold one day and 455 the next. Each transaction was priced at approximately $1.20 per warrant, according to the reported transaction price per share field.

What warrant position remains after these Arqit Quantum (ARQQ) sales?

After the reported transactions, the filing states the reporting person beneficially owns 385,402 Business Combination Warrants. Footnote disclosure explains this position would equal 15,416.08 Arqit ordinary shares if fully exercised on a post-reverse-split basis.

What are the key terms of Arqit Quantum (ARQQ) Business Combination Warrants?

Each Business Combination Warrant has an exercise price of $11.50 and entitles the holder to purchase 0.04 Arqit ordinary share post-reverse-split. The warrants cannot be exercised for fractional shares, requiring at least 25 warrants to receive one whole ordinary share.

How did Arqit Quantum’s reverse stock split affect its warrants?

Arqit implemented a reverse stock split where every 25 ordinary shares became one share. As described, each Business Combination Warrant now converts into 0.04 post-split ordinary share, and warrant holders must exercise at least 25 warrants to obtain a single whole ordinary share.

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Accepted by SEC EDGAR 06/26/2026 - 04:05 PM EDT

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^*

Lefebvre d'Ovidio Manfredi

(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)
06/24/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Business Combination Warrants (right to buy)	⁽¹⁾	06/24/2026		S			659	⁽¹⁾	09/03/2026	Ordinary Shares	659	$1.2	15,871.28	I	Beneficially owned through Heritage Assets SCSp
Business Combination Warrants (right to buy)	⁽¹⁾	06/25/2026		S			455	⁽¹⁾	09/03/2026	Ordinary Shares	455	$1.2	15,416.08	I	Beneficially owned through Heritage Assets SCSp

Explanation of Responses:

1. On September 19, 2024, Arqit Quantum Inc. (ARQQ) announced the implementation of a reverse stock split whereby every 25 outstanding ARQQ ordinary shares were consolidated into one ordinary share, par value $0.0025 per share. Each Business Combination Warrant has an exercise price of $11.50 and can be exercised at any time, at the holder's election, to purchase 0.04 of an ARQQ ordinary share on a post-reverse stock split basis, and cannot be exercised for fractional shares. Accordingly, on a post-reverse stock split basis holders of Business Combination Warrants are required to exercise at least 25 Business Combination Warrants in order to receive one whole ARQQ ordinary share at an aggregate exercise price of $287.50 per whole ARQQ ordinary share. The reporting person beneficially owns 385,402 Business Combination Warrants, which, if exercised in full, would be equivalent to 15,416.08 ARQQ ordinary shares on a post-reverse stock split basis.

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/ Amir Heyat, as Attorney-in-Fact	06/26/2026
	** 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)

Source: View Original Filing on SEC EDGAR