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Arqit Quantum Inc. — All Filings

346 total filings on record

Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.

Overview All Filings Financials Insiders
All 144 144/A 20-F 3 424B3 424B5 425 6-K 8-A12B CERT CORRESP EFFECT F-1 F-1/A F-3 F-3/A F-4 F-4/A POS AM S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13D/A UPLOAD
Form Description Accession Number Filed Period
144 0001959173-25-006327 Oct 3, 2025
144 0001959173-25-006296 Oct 2, 2025
144 0001959173-25-006299 Oct 2, 2025
144 0001959173-25-006290 Oct 2, 2025
144 0001959173-25-006292 Oct 2, 2025
144 0001959173-25-006294 Oct 2, 2025
SCHEDULE 13D/A 0001104659-25-092962 Sep 24, 2025
EFFECT 9999999995-25-003023 Sep 19, 2025
424B3 424B3 0001104659-25-091701 Sep 19, 2025
CORRESP 0001104659-25-090697 Sep 17, 2025
6-K FORM 6-K 0001104659-25-089986 Sep 15, 2025
424B5 424B5 0001104659-25-089989 Sep 15, 2025
F-3/A F-3/A 0001104659-25-089991 Sep 15, 2025
6-K FORM 6-K 0001410578-25-002016 Sep 11, 2025
UPLOAD 0000000000-25-009749 Sep 9, 2025
144 0001959173-25-005735 Sep 3, 2025
F-3 F-3 0001104659-25-085640 Aug 29, 2025
6-K FORM 6-K 0001104659-25-084212 Aug 28, 2025
SCHEDULE 13D/A 0001104659-25-083090 Aug 26, 2025
144 0001959173-25-004662 Jul 21, 2025
144 0001959173-25-004641 Jul 18, 2025
144 0001959173-25-004638 Jul 18, 2025
144 0001959173-25-004475 Jul 7, 2025
144 0001959173-25-004476 Jul 7, 2025
144 0001959173-25-004487 Jul 7, 2025
144 0001959173-25-004474 Jul 7, 2025
144 0001959173-25-004420 Jul 2, 2025
144 0001959173-25-004288 Jun 25, 2025
144 0001959173-25-004258 Jun 23, 2025
144 0001959173-25-004245 Jun 23, 2025
144 0001959173-25-004244 Jun 23, 2025
SCHEDULE 13D/A 0001104659-25-054231 May 29, 2025
6-K FORM 6-K 0001104659-25-051848 May 22, 2025 Mar 31, 2025
424B3 424B3 0001104659-25-051849 May 22, 2025
6-K FORM 6-K 0001104659-25-032020 Apr 4, 2025
144 0001959173-25-002458 Apr 2, 2025
144 0001959173-25-002456 Apr 2, 2025
144 0001959173-25-002457 Apr 2, 2025
144 0001959173-25-002439 Apr 2, 2025
144 0001959173-25-002455 Apr 2, 2025
144 0001959173-25-002141 Mar 18, 2025
144 0001959173-25-000987 Feb 14, 2025
144 0001959173-25-000942 Feb 13, 2025
SCHEDULE 13D/A 0000950170-25-017128 Feb 10, 2025
S-8 FORM S-8 0001104659-25-009638 Feb 5, 2025
424B5 424B5 0001104659-25-007208 Jan 29, 2025
EFFECT 9999999995-25-000234 Jan 29, 2025
CORRESP 0001104659-25-006561 Jan 28, 2025
144 0001959173-25-000510 Jan 28, 2025
UPLOAD 0000000000-25-000839 Jan 27, 2025