Arqit Quantum Inc.
Services-Prepackaged Software · LONDON
High confidence (85%)
Updated Oct 16, 2026, 12:03 AM
What is happening
Derived by rule set status-rules-2026.09.7
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
Latest material event: Arqit Quantum Inc. was delisted from its exchange (Sep 2, 2026)
Timeline
Every material event, newest first. History is never overwritten.
Arqit Quantum Inc. was delisted from its exchange
Sep 2, 2026
Delisting effective
- SEC EDGAR — “X0203 0001354457 Nasdaq Stock Market LLC 0001859690 Arqit Quantum Inc. 001-40777 1st Floor, 3 More London Riverside London X0 UNITED KINGDOM SE1 2RE +447787571610 Warrant 17 CFR 240.12d2-2(a)(2) Katelin Rowe CDO Analyst 2026-09-02”
Company information
- Founded
- —
- Employees (estimate)
- —
- Industry
- Services-Prepackaged Software
- Subindustry
- —
- Listing
- SEC lists the tickers ARQQ and ARQQW on Nasdaq.
- SEC CIK
- 0001859690
- Website
- —
- —
- Headquarters
- LONDON
- Also known as
- —
- Legal entities
- Arqit Quantum Inc.
Sources
Every material source used to build this profile.
SEC Company Submissions (TIER 1 · UNVERIFIED)
Arqit Quantum Inc. — Services-Prepackaged Software (SIC 7372) — LONDON, United Kingdom
View source recordSEC EDGAR (TIER 1 · UNVERIFIED)
X0203 0001354457 Nasdaq Stock Market LLC 0001859690 Arqit Quantum Inc. 001-40777 1st Floor, 3 More London Riverside London X0 UNITED KINGDOM SE1 2RE +447787571610 Warrant 17 CFR 240.12d2-2(a)(2) Katelin Rowe CDO Analyst 2026-09-02
View source record
Status history
Every derived status, with the rule that produced it.
- NO_LONGER_LISTED → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:31 AM
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
- DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:13 AM
The company stopped being publicly listed. A listing ends on the close of a merger as surely as it ends in failure, and the filing does not say which happened here.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:33 PM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.
- DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 14, 2026, 04:46 PM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.
- UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 02:39 AM
The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.