Arqit director-linked entity sells 387 warrants

Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through Heritage Assets SCSp, reported small open-market sales of Business Combination Warrants.

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Form Type

Rhea-AI Filing Summary

Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi, through Heritage Assets SCSp, reported small open-market sales of Business Combination Warrants. On April 23, the entity sold 182 warrants at $3.30 each, followed by 205 warrants at $2.90 each on April 24.

These warrants are exercisable at $11.50 and, after Arqit’s 25‑for‑1 reverse stock split, each warrant represents 0.04 ordinary share, requiring 25 warrants to receive one share at an aggregate exercise price of $287.50. The reporting person beneficially owns 691,582 warrants, equivalent to 27,663.28 ordinary shares on a post‑split basis, so the 387 warrants sold represent a small portion of the overall position.

Insider Trade Summary

Net Seller: 387 shares

Net Sell 2 txns

Insider Lefebvre d'Ovidio Manfredi

Role Director

Sold 387 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Business Combination Warrants (right to buy)	205	$2.90	$594.50
Sale	Business Combination Warrants (right to buy)	182	$3.30	$600.60

Holdings After Transaction: Business Combination Warrants (right to buy) — 55,531.92 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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis.

Key Figures

Warrants sold 2026-04-23: 182 warrants at $3.30 Warrants sold 2026-04-24: 205 warrants at $2.90 Total warrants sold: 387 warrants +4 more

7 metrics

Warrants sold 2026-04-23 182 warrants at $3.30 Open-market sale of Business Combination Warrants

Warrants sold 2026-04-24 205 warrants at $2.90 Open-market sale of Business Combination Warrants

Total warrants sold 387 warrants Net-sell across two derivative transactions

Beneficially owned warrants 691,582 warrants Equivalent to 27,663.28 ordinary shares post-split

Warrant exercise price $11.50 per warrant Business Combination Warrant exercise price before share ratio effect

Effective cost per share $287.50 per share 25 warrants required for one ordinary share post-split

Reverse stock split ratio 25-to-1 Every 25 ordinary shares consolidated into one share

Key Terms

Business Combination Warrants, reverse stock split, beneficially owns, exercise price, +1 more

5 terms

Business Combination Warrants financial

"Each Business Combination Warrant has an exercise price of $11.50 and can be exercised at any time"

reverse stock split financial

"announced the implementation of a reverse stock split whereby every 25 outstanding ARQQ ordinary shares were consolidated"

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.

beneficially owns financial

"The reporting person beneficially owns 691,582 Business Combination Warrants, which, if exercised in full"

Beneficially owns means a person or entity enjoys the economic benefits and control of a security even if the legal title or registration is held in another name. Think of it like having the keys and profits from a car that is registered to a friend: you use it, benefit from it, and make decisions about it even though the official paperwork lists someone else. For investors, this matters because it reveals who truly controls shares, affects voting power, potential conflicts of interest, and regulatory disclosure obligations.

exercise price financial

"Each Business Combination Warrant has an exercise price of $11.50 and can be exercised at any time"

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.

ordinary shares financial

"would be equivalent to 27,663.28 ARQQ ordinary shares on a post-reverse stock split basis"

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 transaction did Arqit Quantum (ARQQ) report on this Form 4?

Arqit Quantum reported that an entity associated with director Lefebvre d'Ovidio Manfredi sold 387 Business Combination Warrants in two open-market transactions, totaling 182 warrants at $3.30 and 205 warrants at $2.90.

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

The sales were executed by Heritage Assets SCSp, which beneficially holds the warrants for director Lefebvre d'Ovidio Manfredi. The holdings are reported as indirect ownership, reflecting the director’s economic interest through this related entity.

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

A total of 387 Business Combination Warrants were sold. On April 23, 182 warrants sold at $3.30 each, and on April 24, 205 warrants sold at $2.90 each, both as open-market transactions in derivative securities.

What Arqit Quantum (ARQQ) warrant holdings remain after these sales?

After the reported sales, the filing states that the reporting person beneficially owns 691,582 Business Combination Warrants. If fully exercised, these warrants would equate to 27,663.28 Arqit Quantum ordinary shares on a post-reverse stock split basis.

How did Arqit Quantum’s reverse stock split affect its Business Combination Warrants?

Arqit Quantum implemented a 25-for-1 reverse stock split of its ordinary shares. Post-split, each Business Combination Warrant has an $11.50 exercise price and entitles the holder to 0.04 ordinary share, requiring 25 warrants to receive one full share.

What is the effective exercise cost of Arqit Quantum (ARQQ) warrants after the reverse split?

Each Business Combination Warrant carries a stated exercise price of $11.50. Because 25 warrants are needed to receive one ordinary share post-split, the aggregate exercise price per whole Arqit Quantum ordinary share is $287.50 according to the filing.

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Accepted by SEC EDGAR 04/27/2026 - 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)
04/23/2026

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⁾	04/23/2026		S			182	⁽¹⁾	09/03/2026	Ordinary Shares	182	$3.3	27,868.64	I	Beneficially owned through Heritage Assets SCSp
Business Combination Warrants (right to buy)	⁽¹⁾	04/24/2026		S			205	⁽¹⁾	09/03/2026	Ordinary Shares	205	$2.9	27,663.28	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 691,582 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,663.28 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	04/27/2026
	** 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