Business overview
Arqit Quantum Inc. is a cybersecurity software company that develops encryption platforms, specifically focusing on quantum-safe symmetric key agreement software. The company aims to provide security solutions that are resilient against attacks from both classical and quantum computers.
Valuation
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Update log
| Date | News | Impact |
|---|---|---|
| 10/30/2026 | PR Newswire | |
| 10/29/2026 | ATI Announces Third Quarter 2026 Results PR Newswire | PR Newswire |
| 10/29/2026 | PR Newswire | |
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| 10/29/2026 | Bristow Group Declares Cash Dividend PR Newswire | PR Newswire |
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| 10/28/2026 | JetZero Awarded $5.3M in FAA CLEEN IV PR Newswire | PR Newswire |
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| 10/28/2026 | Army Chooses HAVIK PR Newswire | PR Newswire |
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| 10/26/2026 | CAE to sell Flightscape to SITA PR Newswire | PR Newswire |
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| 10/24/2026 | PR Newswire | |
| 10/23/2026 | PR Newswire | |
| 10/23/2026 | PR Newswire | |
| 10/23/2026 | Amy Johnson Appointed President of GDIT PR Newswire | PR Newswire |
| 10/20/2026 | Arqit Invests in Sirius to Develop Quantum-Safe Defence Communications The Quantum Insider | Arqit Quantum Inc. has made a strategic investment in Sirius Computer, Inc. to accelerate the development of quantum-safe communication solutions for defense and intelligence sectors. |
| 10/13/2026 | Leaver Andrew (CEO) — Sell -$42,207 Insider Form 4 | S - Sale transaction of -2,573 shares at $16.40 |
| 10/8/2026 | Yahoo Finance | |
| 10/6/2026 | Nilan Nicholas William (GM-US) — Sell -$11,926 Insider Form 4 | S - Sale transaction of -493 shares at $24.19 |
| 10/6/2026 | Feenan Paul (Chief Revenue Officer) — Sell -$12,193 Insider Form 4 | S - Sale transaction of -504 shares at $24.19 |
| 10/6/2026 | Willcocks Patrick (GC) — Sell -$13,426 Insider Form 4 | S - Sale transaction of -555 shares at $24.19 |
| 10/6/2026 | Ritchie Garth (Dir) — Sell -$2,855 Insider Form 4 | S - Sale transaction of -118 shares at $24.19 |
| 10/6/2026 | Wilder Ben Simon (COO) — Sell -$5,274 Insider Form 4 | S - Sale transaction of -218 shares at $24.19 |
| 10/5/2026 | Ritchie Garth (Dir) — Sell -$3,021 Insider Form 4 | S - Sale+OE transaction of -127 shares at $23.78 |
| 10/5/2026 | Leaver Andrew (CEO) — Sell -$60,294 Insider Form 4 | S - Sale+OE transaction of -2,535 shares at $23.78 |
| 10/5/2026 | Feenan Paul (Chief Revenue Officer) — Sell -$12,677 Insider Form 4 | S - Sale+OE transaction of -533 shares at $23.78 |
| 10/5/2026 | Nilan Nicholas William (GM-US) — Sell -$12,416 Insider Form 4 | S - Sale+OE transaction of -522 shares at $23.78 |
| 10/5/2026 | Wilder Ben Simon (COO) — Sell -$5,542 Insider Form 4 | S - Sale+OE transaction of -233 shares at $23.78 |
| 9/22/2026 | Babcock International Group successfully demonstrated a secure data transfer using Arqit Quantum Inc.'s quantum-safe encryption technology for defense communications. | |
| 9/17/2026 | The article discusses the necessity of quantum-safe encryption for satellites, which are long-lived assets that need protection against future threats. This reflects Arqit Quantum's core focus on cybersecurity solutions resilient to quantum computer attacks. | |
| 9/9/2026 | Event outcome: Unknown event_outcome | Billington CyberSecurity Summit participation — No reliable public evidence was found confirming that Arqit Quantum Inc. participated in the 17th Annual Billington CyberSecurity Summit held on September 8–10, 2026. |
| 9/4/2026 | Timing score increases following successful quantum-safe satellite demo AI review | The increase in the timing score is driven by the 'Catalysts' pillar, which rose from 0 to 75 following the successful demonstration of quantum-safe satellite communications with Es’hailSat and AIEE. This practical application of Arqit's technology serves as a tangible technical milestone that enhances the short-term visibility of product deployment, which was previously nonexistent. There was no change to the underlying financial quality or valuation scores. |
| 9/2/2026 | Symmatrics, an encryption company, is presenting at the Billington CyberSecurity Summit regarding its quantum-secure trust layer for the AI era. | |
| 9/1/2026 | Arqit, Es’hailSat and AIEE Demonstrate Quantum-Safe Satellite Communications The Quantum Insider | Arqit Quantum Inc. collaborated with Es’hailSat and AIEE to demonstrate the practical application of quantum-safe encryption in satellite communications. |
| 9/1/2026 | Yahoo Finance | |
| 8/20/2026 | Lastwall has achieved CMMC Level 2 certification, reinforcing its position in identity security and quantum resilience for the U.S. defense sector. | |
| 8/4/2026 | PR Newswire | |
| 6/21/2026 | Arqit Quantum has settled a four-year legal dispute over alleged misrepresentations regarding its technology and revenue for $7 million. | |
| 6/18/2026 | Arqit Quantum has reached a $7 million settlement to resolve a long-running lawsuit concerning disclosures about its quantum encryption technology. | |
| 6/9/2026 | Arqit Quantum reported fiscal Q1 2026 revenue of $623,000 and an increase in contract volume compared to 2025. |