Notice of Proposed Sale · 144
Arqit Quantum Inc.
ARQQNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- Arqit Quantum Inc.
- Issuer CIK
- 0001859690
- SEC file number
- 001-40777
- Phone
- 44 203 91 70155
- Person for whose account securities are to be sold
- Ritchie Garth
- Relationships to issuer
- Director
- Street
- 3 ORCHARD PLACE
- City
- LONDON
- State / country code
- X0
- Postal code
- SW1H 0BF
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 121 | 2,961.39 | 15,291,767 | 10/02/2026 | NASDAQ | Fidelity Brokerage Services LLC |
Broker / market maker — proposed row 1, entry 1
- Name
- Fidelity Brokerage Services LLC
- Street
- 900 Salem Street
- City
- Smithfield
- State / country code
- RI
- Postal code
- 02917
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 10/01/2026 | Restricted Stock Vesting | Issuer | 121 | N | 10/01/2026 | Compensation |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| Garth Ritchie | Common | 07/02/2026 | 439 | 11,063.94 |
Seller — prior-sale row 1, entry 1
- Name
- Garth Ritchie
- Street
- 3 Orchard Place
- City
- London
- State / country code
- X0
- Postal code
- SW1H 0BF
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Remarks
Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Notice signature
- Notice date
- 10/02/2026
- Signed
- /s/ Jessica Spraker, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Garth Ritchie.