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Arqit Quantum Inc. — Investor Relations & Filings

Ticker · ARQQ ISIN · KYG0567U1195 LEI · 254900G93Z1SN49J9J68 US Telecommunications, computer programming, consultancy, computing infrastructure, and other information service activities
Filings indexed 345 across all filing types
Latest filing 2026-05-21 Regulatory Filings
Country KY Cayman Islands
Listing US ARQQ

About Arqit Quantum Inc.

https://arqit.uk/

Arqit Quantum Inc. is a cybersecurity company specializing in quantum-safe encryption technologies designed to protect data and communications from current and future cyber threats, including those from quantum computers. The company provides a Platform-as-a-Service (PaaS) that delivers a unique symmetric key agreement protocol. This dynamic, lightweight software solution is designed to be scalable, simple, and standards-based, securing networked devices from the cloud to the edge without requiring additional hardware. Arqit's hybrid, post-quantum cryptography (PQC) agile solution enables organizations to detect cryptographic weaknesses and protect their critical infrastructure and IT networks against evolving threats.

Recent filings

Filing Released Lang Actions
424B3
Regulatory Filings
2026-05-21 English
FORM 6-K
Regulatory Filings
2026-05-21 English
6-K - Arqit Quantum Inc. (0001859690) (Filer)
Regulatory Filings
2026-04-13 English
3 - Arqit Quantum Inc. (0001859690) (Issuer)
Director's Dealing
2026-03-18 English
3 - Arqit Quantum Inc. (0001859690) (Issuer)
Director's Dealing
2026-03-18 English
3 - Arqit Quantum Inc. (0001859690) (Issuer)
Director's Dealing
2026-03-18 English

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