Arqit Quantum (NASDAQ: ARQQ) director reports sales of Business Combination Warrants

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Arqit Quantum Inc. director Lefebvre d'Ovidio Manfredi reported indirect open-market sales of Business Combination Warrants beneficially owned through Heritage Assets SCSp. The transactions covered 462 warrants in total, sold on two days at prices of $2.50 and $2.90 per warrant.

Each Business Combination Warrant has an exercise price of $11.50 and entitles the holder to purchase 0.04 of an Arqit ordinary share on a post-reverse stock split basis. After these sales, the reporting person beneficially owns 680,021 warrants, equivalent to 27,200.84 Arqit ordinary shares on a post-reverse stock split basis.

Insider Trade Summary

Net Seller: 462 shares ($1,171)

Net Sell 2 txns

Insider Lefebvre d'Ovidio Manfredi

Role null

Sold 462 shs ($1K)

Type	Security	Shares	Price	Value
Sale	Business Combination Warrants (right to buy)	421	$2.50	$1K
Sale	Business Combination Warrants (right to buy)	41	$2.90	$118.90

Holdings After Transaction: Business Combination Warrants (right to buy) — 27,200.84 shares (Indirect, Beneficially owned through Heritage Assets SCSp)

Footnotes (1)

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Key Figures

Warrants sold: 462 warrants Sale prices: $2.50 and $2.90 per warrant Exercise price: $11.50 per warrant +5 more

8 metrics

Warrants sold 462 warrants Open-market sales on April 27–28, 2026

Sale prices $2.50 and $2.90 per warrant Open-market sales of Business Combination Warrants

Exercise price $11.50 per warrant Each warrant’s exercise price for Arqit ordinary shares

Post-sale warrant holdings 680,021 warrants Beneficially owned Business Combination Warrants

Ordinary share equivalent 27,200.84 shares Equivalence if 680,021 warrants exercised post-reverse split

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

Minimum warrants per whole share 25 warrants Required to receive one whole ordinary share at exercise

Aggregate exercise price per whole share $287.50 Total exercise price for one whole ordinary share

Key Terms

Business Combination Warrants, reverse stock split, beneficially owns, ordinary shares, +1 more

5 terms

Business Combination Warrants financial

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

reverse stock split financial

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

A reverse stock split is when a company reduces the number of its shares outstanding, making each share more valuable. For example, if you own 100 shares worth $1 each, a 1-for-10 reverse split would turn your 100 shares into 10 shares worth $10 each. Companies often do this to boost their stock price and appear more stable to investors.

beneficially owns financial

"The reporting person beneficially owns 680,021 Business Combination Warrants"

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.

ordinary shares financial

"would be equivalent to 27,200.84 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.

indirect ownership financial

"Beneficially owned through Heritage Assets SCSp"

Form 4 Insider Transactions: What Each Field Means →

04/29/2026 - 04:05 PM

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)
04/27/2026

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⁾	04/27/2026		S			41	⁽¹⁾	09/03/2026	Ordinary Shares	41	$2.9	27,622.16	I	Beneficially owned through Heritage Assets SCSp
Business Combination Warrants (right to buy)	⁽¹⁾	04/28/2026		S			421	⁽¹⁾	09/03/2026	Ordinary Shares	421	$2.5	27,200.84	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 680,021 Business Combination Warrants, which, if exercised in full, would be equivalent to 27,200.84 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	04/29/2026
	** 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

FAQ

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

Arqit Quantum Inc. reported that director Lefebvre d'Ovidio Manfredi indirectly sold 462 Business Combination Warrants in open-market transactions. These warrants are beneficially owned through Heritage Assets SCSp and relate to the right to buy Arqit ordinary shares on a post-reverse stock split basis.

At what prices were the Arqit (ARQQ) Business Combination Warrants sold?

The warrants were sold in two transactions at prices of $2.50 and $2.90 per warrant. Both transactions were coded as open-market or private sales, reflecting routine market trades rather than option exercises or tax-related dispositions.

How many Business Combination Warrants does the Arqit (ARQQ) insider still hold?

After these sales, the reporting person beneficially owns 680,021 Business Combination Warrants. According to the filing, if exercised in full, these warrants would be equivalent to 27,200.84 Arqit ordinary shares on a post-reverse stock split basis.

What are the key terms of Arqit (ARQQ) Business Combination Warrants mentioned in the Form 4?

Each Business Combination Warrant has a fixed exercise price of $11.50 and can be exercised to purchase 0.04 of an Arqit ordinary share post-reverse split. Warrants cannot be exercised for fractional shares, and at least 25 warrants are needed to receive one whole ordinary share.

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

Arqit implemented a reverse stock split where every 25 ordinary shares became one share. After this, each Business Combination Warrant entitles the holder to 0.04 of a post-split ordinary share, and 25 warrants are required to receive one whole ordinary share at a total exercise price of $287.50.

Are the Arqit (ARQQ) warrant sales direct or through another entity?

The reported warrant sales are indirect, beneficially owned through Heritage Assets SCSp. The Form 4 lists the ownership type as indirect and notes that the Business Combination Warrants are held through this entity associated with the reporting person.