Calabria Carlo 4
4 · Arqit Quantum Inc. · Filed Jul 6, 2026
Research Summary
AI-generated summary of this filing
Arqit (ARQQ) Director Carlo Calabria Converts 799 RSUs
What Happened
Carlo Calabria, a director of Arqit Quantum Inc. (ARQQ), had Restricted Share Units (RSUs) convert into ordinary shares on July 1, 2026. The filing shows conversions/exercises of 50, 250, 250 and 249 RSUs (total 799 shares) at $0.00 per share (acquired). The same 799 shares were reported as disposed the same day (each lot marked as a derivative disposal), so the transaction as reported produced no net increase in beneficial ownership and no cash paid according to the Form 4.
Key Details
- Transaction date: July 1, 2026; Form 4 filed July 6, 2026 (Period of Report: 2026-07-01).
- Price reported: $0.00 for each conversion/exercise (total cash paid per filing = $0).
- Shares acquired: 799 (50 + 250 + 250 + 249). Shares disposed: 799 (same breakdown). Net change: 0 shares.
- Shares owned after transaction: not disclosed in the provided filing details.
- Footnotes: F1 confirms RSUs convert one-for-one into ARQQ ordinary shares; F2 notes these RSUs vested on July 1, 2026. Additional footnotes (F3–F5) list other RSU vesting schedules for future dates.
- Regulatory note: Issuer is a foreign private issuer; the reporting person’s transactions are exempt from Sections 16(b) and 16(c) of the Securities Exchange Act per the filing. Ex.24 (Power of Attorney) attached.
Context
- These were derivative/RSU conversions (transaction code M) rather than open-market buys or sales. Conversions at $0.00 reflect settlement of RSUs into shares per the award terms, not a cash purchase.
- The same-day disposals are reported as “Derivative” in the Form 4; filings like this commonly reflect immediate disposition or withholding associated with RSU settlement (e.g., to cover taxes or fees), though the filing itself does not state the reason.
- Because there is no net purchase (net change = 0), this filing does not signal an increase in insider ownership.
Insider Transaction Report
Form 4
Calabria Carlo
Director
Transactions
- Exercise/Conversion
Ordinary Shares
[F1]2026-07-01+50→ 230,972 total - Exercise/Conversion
Ordinary Shares
[F1]2026-07-01+250→ 231,222 total - Exercise/Conversion
Ordinary Shares
[F1]2026-07-01+250→ 231,472 total - Exercise/Conversion
Ordinary Shares
[F1]2026-07-01+249→ 231,721 total - Exercise/Conversion
Restricted Share Units
[F1][F2]2026-07-01−50→ 0 total→ Ordinary Shares (50 underlying) - Exercise/Conversion
Restricted Share Units
[F1][F3]2026-07-01−250→ 1,000 total→ Ordinary Shares (250 underlying) - Exercise/Conversion
Restricted Share Units
[F1][F4]2026-07-01−250→ 1,251 total→ Ordinary Shares (250 underlying) - Exercise/Conversion
Restricted Share Units
[F1][F5]2026-07-01−249→ 2,250 total→ Ordinary Shares (249 underlying)
Footnotes (5)
- [F1]The Restricted Share Units ("RSUs") convert into ARQQ ordinary shares on a one-for-one basis.
- [F2]The RSUs vested on July 1, 2026.
- [F3]The RSUs vest quarterly in equal installments on July 1 and October 1, 2026, and January 1, April 1, and July 1, 2027.
- [F4]The RSUs vest quarterly in equal installments on July 1 and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027.
- [F5]The RSUs vest quarterly in equal installments on July 1, and October 1, 2026, and January 1, April 1, July 1, and October 1, 2027, and January 1, April 1, July 1, and October 1, 2028.
Signature
/s/ Noleen McDonnell, as Attorney-in-Fact|2026-07-06