SEC Form 4 · accession 0001859690-26-000154
Arqit Quantum Inc. · ARQQ
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
d'Ovidio Manfredi Lefebvre
Director
Period of report
Jul 17, 2026
Accepted (ET)
Jul 21, 2026 · 2:10 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001859690
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Ordinary SharesF1 | Jul 17, 2026 | M | 673 | $0.00 | A | 49,023 | D | |
| Ordinary Shares | holding | — | — | — | 4,396,891 | I | beneficially owned through Heritage Assets SCSP |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Share UnitsF1 | — | Jul 17, 2026 | M | 673 | D | — | — | Ordinary Shares | 673 | 0 | D |
Explanation of responses
- F1Restricted Stock Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis. The RSUs vested within the week of the grant date.
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. Ex.24 - Power of Attorney