Arqit Quantum Inc. SEC EDGAR Filings (CIK 0001859690)

SEC EDGAR filings, ownership reports, and insider transactions for Arqit Quantum Inc..

Symbol
ARQQ, ARQQW on Nasdaq
Industry
Services Prepackaged Software (Office Of Technology)
Business address
3 Orchard Place, London, United Kingdom, SW1H 0BF
State of incorporation
Cayman Islands
Fiscal year end
30 September
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Arqit Quantum Inc. has filed 328 SEC EDGAR filings since 12 May 2021

Latest Filings

Recent SEC filings for Arqit Quantum Inc. including F-3, 6-K, 144 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
F-3 Open F-3 document | Open XBRL data View SEC filing for F-3 F-3 12 Jan 2026 333-292677
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 12 Jan 2026 12 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 06 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 02 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 02 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 02 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 02 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 02 Jan 2026 001-40777
144 Open 144 document View SEC filing for 144 11 Dec 2025 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Dec 2025 333-259982
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Dec 2025 333-289939
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 09 Dec 2025 09 Dec 2025 001-40777
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 09 Dec 2025 30 Sep 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 12 Nov 2025 005-92850
144 Open 144 document View SEC filing for 144 04 Nov 2025 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Oct 2025 21 Oct 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 20 Oct 2025 005-92850
144 Open 144 document View SEC filing for 144 16 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 15 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 15 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 14 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 14 Oct 2025 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 09 Oct 2025 09 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 06 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 06 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 06 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 06 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 06 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 24 Sep 2025 005-92850
EFFECT Open EFFECT document View SEC filing for EFFECT 19 Sep 2025 333-289939
424B3 Open 424B3 document View SEC filing for 424B3 424B3 19 Sep 2025 333-289939
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Sep 2025
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 15 Sep 2025 333-289939
424B5 Open 424B5 document View SEC filing for 424B5 424B5 15 Sep 2025 333-284343
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 15 Sep 2025 15 Sep 2025 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 11 Sep 2025 11 Sep 2025 001-40777
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 09 Sep 2025 333-289939
144 Open 144 document View SEC filing for 144 03 Sep 2025 001-40777
F-3 Open F-3 document | Open XBRL data View SEC filing for F-3 F-3 29 Aug 2025 333-289939
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 28 Aug 2025 28 Aug 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 26 Aug 2025 005-92850
144 Open 144 document View SEC filing for 144 21 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 18 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 18 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 07 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 07 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 07 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 07 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Jul 2025 001-40777
144 Open 144 document View SEC filing for 144 25 Jun 2025 001-40777
144 Open 144 document View SEC filing for 144 23 Jun 2025 001-40777
144 Open 144 document View SEC filing for 144 23 Jun 2025 001-40777
144 Open 144 document View SEC filing for 144 23 Jun 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 29 May 2025 005-92850
424B3 Open 424B3 document View SEC filing for 424B3 424B3 22 May 2025 333-259982
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 22 May 2025 31 Mar 2025 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 04 Apr 2025 04 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2025 001-40777
144 Open 144 document View SEC filing for 144 18 Mar 2025 001-40777
144 Open 144 document View SEC filing for 144 14 Feb 2025 001-40777
144 Open 144 document View SEC filing for 144 13 Feb 2025 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 10 Feb 2025 005-92850
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 05 Feb 2025 333-284706
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Jan 2025 333-284343
424B5 Open 424B5 document View SEC filing for 424B5 424B5 29 Jan 2025 333-284343
144 Open 144 document View SEC filing for 144 28 Jan 2025 001-40777
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Jan 2025
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Jan 2025 333-284343
F-3 Open F-3 document View SEC filing for F-3 F-3 17 Jan 2025 333-284343
144 Open 144 document View SEC filing for 144 10 Jan 2025 001-40777
144 Open 144 document View SEC filing for 144 08 Jan 2025 001-40777
144 Open 144 document View SEC filing for 144 08 Jan 2025 001-40777
144 Open 144 document View SEC filing for 144 08 Jan 2025 001-40777
144 Open 144 document View SEC filing for 144 08 Jan 2025 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Dec 2024 19 Dec 2024 001-40777
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 18 Dec 2024 005-92850
144 Open 144 document View SEC filing for 144 16 Dec 2024 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A FORM 13 Dec 2024 005-92850
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A FORM 10 Dec 2024 005-92850
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 09 Dec 2024 09 Dec 2024 001-40777
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 05 Dec 2024 30 Sep 2024 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 05 Dec 2024 05 Dec 2024 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Dec 2024 03 Dec 2024 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 03 Dec 2024 333-259982
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Nov 2024 005-92850
144 Open 144 document View SEC filing for 144 15 Oct 2024 001-40777
144 Open 144 document View SEC filing for 144 15 Oct 2024 001-40777
144 Open 144 document View SEC filing for 144 15 Oct 2024 001-40777
144 Open 144 document View SEC filing for 144 15 Oct 2024 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 11 Oct 2024 11 Oct 2024 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 02 Oct 2024 005-92850
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 02 Oct 2024 005-92850
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 01 Oct 2024 005-92850
424B5 Open 424B5 document View SEC filing for 424B5 424B5 01 Oct 2024 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 01 Oct 2024 01 Oct 2024 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 01 Oct 2024 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 Sep 2024 27 Sep 2024 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 19 Sep 2024 19 Sep 2024 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 16 Sep 2024 005-92850
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 27 Aug 2024 27 Aug 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Jul 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Jul 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Jul 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Jul 2024 001-40777
144 Open 144 document View SEC filing for 144 31 May 2024 001-40777
144 Open 144 document View SEC filing for 144 24 May 2024 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 20 May 2024 333-259982
6-K Open 6-K document | Open XBRL data View SEC filing for 6-K FORM 6-K 20 May 2024 31 Mar 2024 001-40777
144 Open 144 document View SEC filing for 144 02 May 2024 001-40777
144 Open 144 document View SEC filing for 144 02 May 2024 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 15 Apr 2024 005-92850
424B5 Open 424B5 document View SEC filing for 424B5 424B5 15 Apr 2024 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 15 Apr 2024 15 Apr 2024 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 15 Apr 2024 333-268786
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Apr 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Mar 2024 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 13 Feb 2024 005-92850
144 Open 144 document View SEC filing for 144 02 Feb 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Feb 2024 001-40777
144 Open 144 document View SEC filing for 144 02 Feb 2024 001-40777
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 26 Jan 2024 005-92850
144 Open 144 document View SEC filing for 144 22 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 18 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 05 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 05 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 05 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 05 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 05 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 04 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 03 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 03 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 03 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 03 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 03 Jan 2024 001-40777
144 Open 144 document View SEC filing for 144 26 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 21 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 19 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 18 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 15 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 14 Dec 2023 001-40777
S-8 Open S-8 document View SEC filing for S-8 08 Dec 2023 333-275960
144 Open 144 document View SEC filing for 144 05 Dec 2023 001-40777
144 Open 144 document View SEC filing for 144 05 Dec 2023 001-40777
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 21 Nov 2023 30 Sep 2023 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Nov 2023 21 Nov 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Nov 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Nov 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Nov 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Nov 2023 001-40777
6-K Open 6-K document View SEC filing for 6-K 23 Oct 2023 23 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 12 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 04 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Oct 2023 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 15 Sep 2023 005-92850
424B5 Open 424B5 document View SEC filing for 424B5 424B5 11 Sep 2023 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 11 Sep 2023 11 Sep 2023 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 08 Sep 2023 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 07 Sep 2023 07 Sep 2023 001-40777
144 Open 144 document View SEC filing for 144 07 Sep 2023 001-40777
144 Open 144 document View SEC filing for 144 07 Sep 2023 001-40777
144 Open 144 document View SEC filing for 144 07 Sep 2023 001-40777
144 Open 144 document View SEC filing for 144 07 Sep 2023 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 07 Sep 2023 07 Sep 2023 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Aug 2023 08 Aug 2023 001-40777
144/A Open 144/A document View SEC filing for 144/A 03 Aug 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Aug 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Aug 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Aug 2023 001-40777
144 Open 144 document View SEC filing for 144 02 Aug 2023 001-40777
144 Open 144 document View SEC filing for 144 06 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 06 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Jul 2023 001-40777
144 Open 144 document View SEC filing for 144 15 Jun 2023 001-40777
144 Open 144 document View SEC filing for 144 14 Jun 2023 001-40777
144 Open 144 document View SEC filing for 144 14 Jun 2023 001-40777
144 Open 144 document View SEC filing for 144 14 Jun 2023 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 02 Jun 2023 02 Jun 2023 001-40777
424B3 Open 424B3 document View SEC filing for 424B3 424B3 17 May 2023 333-259982
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 17 May 2023 17 May 2023 001-40777
144 Open 144 document View SEC filing for 144 09 May 2023 001-40777
144 Open 144 document View SEC filing for 144 03 Apr 2023 001-40777
424B5 Open 424B5 document View SEC filing for 424B5 424B5 21 Feb 2023 333-268786
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 21 Feb 2023 21 Feb 2023 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 03 Feb 2023 005-92850
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 06 Jan 2023 005-92850
EFFECT Open EFFECT document View SEC filing for EFFECT 30 Dec 2022 333-268786
424B5 Open 424B5 document View SEC filing for 424B5 424B5 30 Dec 2022 333-268786
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Dec 2022
F-3/A Open F-3/A document View SEC filing for F-3/A F-3/A 28 Dec 2022 333-268786
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 23 Dec 2022
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 14 Dec 2022 14 Dec 2022 001-40777
F-3 Open F-3 document View SEC filing for F-3 F-3 14 Dec 2022 333-268786
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F 20-F 14 Dec 2022 30 Sep 2022 001-40777
EFFECT Open EFFECT document View SEC filing for EFFECT 22 Nov 2022 333-259982
424B3 Open 424B3 document View SEC filing for 424B3 424B3 22 Nov 2022 333-259982
POS AM Open POS AM document View SEC filing for POS AM POS AM 09 Nov 2022 333-259982
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Sep 2022 08 Sep 2022 001-40777
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 15 Aug 2022
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Aug 2022 08 Aug 2022 001-40777
CORRESP Open CORRESP document View SEC filing for CORRESP 11 Jul 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 28 Jun 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 15 Jun 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 01 Jun 2022
424B3 Open 424B3 document View SEC filing for 424B3 424B3 12 May 2022 333-259982
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 12 May 2022 12 May 2022 001-40777
S-8 Open S-8 document View SEC filing for S-8 S-8 18 Jan 2022 333-262215
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 06 Jan 2022 005-92850
EFFECT Open EFFECT document View SEC filing for EFFECT 23 Dec 2021 333-259982
424B3 Open 424B3 document View SEC filing for 424B3 424B3 23 Dec 2021 333-259982
POS AM Open POS AM document | Open XBRL data View SEC filing for POS AM FORM POS AM 16 Dec 2021 333-259982
20-F Open 20-F document | Open XBRL data View SEC filing for 20-F FORM 20-F 16 Dec 2021 30 Sep 2021 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 16 Dec 2021 16 Dec 2021 001-40777
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 09 Dec 2021 005-92850
EFFECT Open EFFECT document View SEC filing for EFFECT 12 Oct 2021 333-259982
424B3 Open 424B3 document View SEC filing for 424B3 424B3 12 Oct 2021 333-259982
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 12 Oct 2021 005-92850
CORRESP Open CORRESP document View SEC filing for CORRESP 12 Oct 2021
F-1/A Open F-1/A document View SEC filing for F-1/A F-1/A 08 Oct 2021 333-259982
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 06 Oct 2021
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 04 Oct 2021 04 Oct 2021 001-40777
F-1 Open F-1 document | Open XBRL data View SEC filing for F-1 FORM F-1 01 Oct 2021 333-259982
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 21 Sep 2021 005-92850
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 17 Sep 2021 005-92850
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 14 Sep 2021 005-92850
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 13 Sep 2021 005-92850
20-F Open 20-F document View SEC filing for 20-F FORM 20-F 10 Sep 2021 01 Sep 2021 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 08 Sep 2021 08 Sep 2021 001-40777
6-K Open 6-K document View SEC filing for 6-K FORM 6-K 03 Sep 2021 03 Sep 2021 001-40777
CERT Open CERT document View SEC filing for CERT 8A CERT 03 Sep 2021 001-40777
8-A12B Open 8-A12B document View SEC filing for 8-A12B FORM 8-A12B 01 Sep 2021 001-40777
425 Open 425 document View SEC filing for 425 425 01 Sep 2021 333-256591
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Aug 2021 333-256591
425 Open 425 document View SEC filing for 425 425 30 Aug 2021 333-256591
425 Open 425 document View SEC filing for 425 425 27 Aug 2021
425 Open 425 document View SEC filing for 425 425 27 Aug 2021 333-256591
425 Open 425 document View SEC filing for 425 425 24 Aug 2021
424B3 Open 424B3 document View SEC filing for 424B3 424B3 23 Aug 2021 333-256591
425 Open 425 document View SEC filing for 425 425 19 Aug 2021
425 Open 425 document View SEC filing for 425 425 12 Aug 2021
425 Open 425 document View SEC filing for 425 425 11 Aug 2021
425 Open 425 document View SEC filing for 425 425 11 Aug 2021
425 Open 425 document View SEC filing for 425 425 09 Aug 2021
425 Open 425 document View SEC filing for 425 425 03 Aug 2021
425 Open 425 document View SEC filing for 425 425 03 Aug 2021
425 Open 425 document View SEC filing for 425 425 03 Aug 2021
425 Open 425 document View SEC filing for 425 425 03 Aug 2021
EFFECT Open EFFECT document View SEC filing for EFFECT 30 Jul 2021 333-256591
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Jul 2021 333-256591
CORRESP Open CORRESP document View SEC filing for CORRESP 29 Jul 2021
CORRESP Open CORRESP document View SEC filing for CORRESP 29 Jul 2021
F-4/A Open F-4/A document View SEC filing for F-4/A F-4/A 29 Jul 2021 333-256591
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Jul 2021
425 Open 425 document View SEC filing for 425 425 27 Jul 2021
425 Open 425 document View SEC filing for 425 425 27 Jul 2021
F-4/A Open F-4/A document View SEC filing for F-4/A F-4/A 26 Jul 2021 333-256591
425 Open 425 document View SEC filing for 425 FORM 425 23 Jul 2021
425 Open 425 document View SEC filing for 425 425 19 Jul 2021
CORRESP Open CORRESP document View SEC filing for CORRESP 09 Jul 2021
F-4/A Open F-4/A document View SEC filing for F-4/A F-4/A 09 Jul 2021 333-256591
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 24 Jun 2021
425 Open 425 document View SEC filing for 425 425 17 Jun 2021
F-4 Open F-4 document View SEC filing for F-4 F-4 28 May 2021 333-256591
425 Open 425 document View SEC filing for 425 425 20 May 2021
425 Open 425 document View SEC filing for 425 425 17 May 2021
425 Open 425 document View SEC filing for 425 425 12 May 2021
425 Open 425 document View SEC filing for 425 425 12 May 2021
425 Open 425 document View SEC filing for 425 425 12 May 2021

About this filer

Arqit Quantum Inc. files with the SEC under CIK 0001859690. This page aggregates EDGAR filings and related ownership activity.

Industry: Services Prepackaged Software.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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