Robert Michael Russell - 01 Apr 2026 Form 4 Insider Report for Arqit Quantum Inc. (ARQQ)

Reporting relationship: Chief Financial Officer
Issuer ticker: ARQQ
Reported as of: 01 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 Jun 2026, 17:48:10 UTC
Next SEC filing: 05 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Noleen McDonnell, as Attorney-in-Fact

Key filing fact

Robert Michael Russell filed Form 4 for Arqit Quantum Inc. (ARQQ) on 22 Jun 2026.

Key facts

This page summarizes Robert Michael Russell's Form 4 filing for Arqit Quantum Inc. (ARQQ).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 22 Jun 2026, 17:48.

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 0002135484 Primary reporting owner

Russell Robert Michael

Relationship: Chief Financial Officer
Address: 3 ORCHARD PLACE, LONDON, UNITED KINGDOM
Signature: /s/ Noleen McDonnell, as Attorney-in-Fact
Signature date: 22 Jun 2026

Reported derivative securities

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

ARQQ transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +5,202
Change %
Price: $0.000000^*
Shares after: 5,202
Date: 01 Apr 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 5,202
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

Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. vest over nine quarters, one third on 1 April 2027 and then equally over eight quarters.

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.