Arqit Quantum (ARQQ)
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Arqit Quantum Inc. is a cybersecurity company focused on protecting digital communications from both conventional cyber threats and the longer-term risk posed by quantum computing. The company’s core proposition is symmetric key agreement technology, designed to allow connected devices, cloud systems, and enterprise networks to create and share encryption keys securely without relying on vulnerable public-key exchange methods.
Arqit markets this capability through its SKA-Platform, which is intended to help organisations secure data in motion and data at rest across complex technology environments. The platform is relevant to sectors where secure communications are mission-critical, including government, defence, telecommunications, financial services, and industrial infrastructure. Its technology is positioned as “quantum-safe,” meaning it is built with the aim of resisting attacks from future quantum computers that could undermine widely used cryptographic systems.
The company operates as a specialist provider of cybersecurity services and reports its activities through a single operating segment. Arqit is headquartered in the United Kingdom and generates revenue from UK-based operations, while addressing a global security problem as companies and public-sector bodies prepare for post-quantum cryptography requirements.
For investors, Arqit represents exposure to a highly specialised area of the cybersecurity market rather than a broad software platform business. Its appeal rests on the growing awareness that encryption infrastructure may need to be upgraded before large-scale quantum computers become commercially viable. As a listed company, Arqit’s performance depends on its ability to convert technical differentiation into commercial adoption, recurring revenue, and partnerships in security-sensitive markets.
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Income Statement
| Line Item | 2025 Q4 | 2024 Q4 | 2023 Q4 | 2022 Q4 | 2021 Q4 |
|---|---|---|---|---|---|
| Revenue | — | — | — | — | — |
| Gross profit | — | — | — | — | — |
| Operating income | — | — | — | — | — |
| EBITDA | 0 | 0 | 0 | 0 | 0 |
| Net income | — | — | — | — | — |
| Basic EPS | — | — | — | — | — |
| Diluted EPS | — | — | — | — | — |
Balance Sheet
| Line Item | 2025 Q4 | 2024 Q4 | 2023 Q4 | 2022 Q4 | 2021 Q4 |
|---|---|---|---|---|---|
| Total assets | 42.85M | 26.72M | 99.79M | 123.87M | 113.73M |
| Total liabilities | 15.62M | 14.9M | 33.13M | 45.32M | 147.57M |
| Total equity | 27.24M | 11.82M | 66.65M | 78.56M | -33.84M |
| Cash & equivalents | 36.98M | 18.71M | 44.46M | 48.97M | 86.97M |
| Current assets | 40.02M | 23.7M | 86.35M | 56.64M | 90.26M |
| Current liabilities | 14.9M | 12.2M | 20.95M | 23.81M | 17.07M |
Cash Flow
| Line Item | 2025 Q4 | 2024 Q4 | 2023 Q4 | 2022 Q4 | 2021 Q4 |
|---|---|---|---|---|---|
| Operating cash flow | — | — | — | — | — |
| Investing cash flow | — | — | — | — | — |
| Financing cash flow | — | — | — | — | — |
| Change in cash | — | — | — | — | — |
| Kind | Filing | Date | Link |
|---|---|---|---|
| edgar index | 6-K — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 144 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 3 — Arqit Quantum Inc. | View Filing | |
| edgar index | 3 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Ritchie Garth | View Filing | |
| form 4 | Form 4 — Ritchie Garth | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Calabria Carlo | View Filing | |
| form 4 | Form 4 — Calabria Carlo | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | SCHEDULE 13D/A — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 6-K — Arqit Quantum Inc. | View Filing | |
| edgar index | 424B3 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Ritchie Garth | View Filing | |
| form 4 | Form 4 — Ritchie Garth | View Filing | |
| form 4 | Form 4 — Ritchie Garth | View Filing | |
| edgar index | 4 — Arqit Quantum Inc. | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Calabria Carlo | View Filing | |
| form 4 | Form 4 — Calabria Carlo | View Filing | |
| form 4 | Form 4 — Calabria Carlo | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing | |
| form 4 | Form 4 — Lefebvre d'Ovidio Manfredi | View Filing |
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