d'Ovidio Manfredi Lefebvre - 30 Apr 2026 Form 4 Insider Report for Arqit Quantum Inc. (ARQQ)

Reporting relationship: Director
Issuer ticker: ARQQ
Reported as of: 30 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 May 2026, 16:05:12 UTC
Source filing: View source filing
Reporting owner signature: /s/ Amir Heyat, as Attorney-in-Fact

Key filing fact

d'Ovidio Manfredi Lefebvre filed Form 4 for Arqit Quantum Inc. (ARQQ) on 04 May 2026.

Key facts

This page summarizes d'Ovidio Manfredi Lefebvre's Form 4 filing for Arqit Quantum Inc. (ARQQ).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 04 May 2026, 16:05.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001840678 Primary reporting owner

Lefebvre d'Ovidio Manfredi

Relationship: Director
Address: 3 ORCHARD PLACE, LONDON, UNITED KINGDOM
Signature: /s/ Amir Heyat, as Attorney-in-Fact
Signature date: 04 May 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ARQQ transaction Derivative

Business Combination Warrants (right to buy)

Sale

Transaction value
Shares: -91
Change %: -0.35%
Price: $2.30^*
Shares after: 26,143
Date: 30 Apr 2026
Ownership: Beneficially owned through Heritage Assets SCSp
Underlying class: Ordinary Shares
Underlying amount: 91
Exercise price
Footnotes: F1

ARQQ transaction Derivative

Business Combination Warrants (right to buy)

Sale

Transaction value
Shares: -402
Change %: -1.5%
Price: $2.10^*
Shares after: 25,741
Date: 01 May 2026
Ownership: Beneficially owned through Heritage Assets SCSp
Underlying class: Ordinary Shares
Underlying amount: 402
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote 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 643,533 Business Combination Warrants, which, if exercised in full, would be equivalent to 25,741.32 ARQQ ordinary shares on a post-reverse stock split basis.

SEC 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.