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.
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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 |
|---|---|---|---|---|
| 3 | PRIMARY DOCUMENT | 0001859690-26-000044 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000038 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000035 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000032 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000029 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000026 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000024 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000021 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000018 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000016 | Mar 18, 2026 | — |
| 3 | PRIMARY DOCUMENT | 0001859690-26-000011 | Mar 18, 2026 | — |
| 6-K | FORM 6-K | 0001104659-26-023442 | Mar 4, 2026 | — |
| 144 | — | 0001959173-26-001917 | Mar 4, 2026 | — |
| 144 | — | 0001959173-26-001470 | Feb 25, 2026 | — |
| 144 | — | 0001959173-26-001293 | Feb 20, 2026 | — |
| EFFECT | — | 9999999995-26-000301 | Jan 26, 2026 | — |
| 424B5 | 424B5 | 0001104659-26-006614 | Jan 26, 2026 | — |
| F-3/A | F-3/A | 0001104659-26-006226 | Jan 23, 2026 | — |
| F-3 | F-3 | 0001104659-26-002871 | Jan 12, 2026 | — |
| 6-K | FORM 6-K | 0001104659-26-002738 | Jan 12, 2026 | — |
| 144 | — | 0001959173-26-000175 | Jan 6, 2026 | — |
| 144 | — | 0001959173-26-000045 | Jan 2, 2026 | — |
| 144 | — | 0001959173-26-000043 | Jan 2, 2026 | — |
| 144 | — | 0001959173-26-000042 | Jan 2, 2026 | — |
| 144 | — | 0001959173-26-000041 | Jan 2, 2026 | — |
| 144 | — | 0001959173-26-000040 | Jan 2, 2026 | — |
| 144 | — | 0001959173-25-007651 | Dec 11, 2025 | — |
| 424B3 | 424B3 | 0001104659-25-119507 | Dec 9, 2025 | — |
| 424B3 | 424B3 | 0001104659-25-119506 | Dec 9, 2025 | — |
| 6-K | FORM 6-K | 0001104659-25-119505 | Dec 9, 2025 | — |
| 20-F | 20-F | 0001104659-25-119500 | Dec 9, 2025 | Sep 30, 2025 |
| SCHEDULE 13D/A | — | 0001104659-25-110321 | Nov 12, 2025 | — |
| 144 | — | 0001959173-25-006716 | Nov 4, 2025 | — |
| 6-K | FORM 6-K | 0001104659-25-101054 | Oct 21, 2025 | — |
| SCHEDULE 13D/A | — | 0001104659-25-100833 | Oct 20, 2025 | — |
| 144 | — | 0001104659-25-099876 | Oct 16, 2025 | — |
| 144 | — | 0001959173-25-006452 | Oct 15, 2025 | — |
| 144 | — | 0001959173-25-006450 | Oct 15, 2025 | — |
| 144 | — | 0001959173-25-006441 | Oct 14, 2025 | — |
| 144 | — | 0001959173-25-006420 | Oct 14, 2025 | — |
| 6-K | FORM 6-K | 0001104659-25-098114 | Oct 9, 2025 | — |
| 144 | — | 0001959173-25-006360 | Oct 6, 2025 | — |
| 144 | — | 0001959173-25-006357 | Oct 6, 2025 | — |
| 144 | — | 0001959173-25-006356 | Oct 6, 2025 | — |
| 144 | — | 0001959173-25-006355 | Oct 6, 2025 | — |
| 144 | — | 0001959173-25-006353 | Oct 6, 2025 | — |
| 144 | — | 0001959173-25-006330 | Oct 3, 2025 | — |
| 144 | — | 0001959173-25-006329 | Oct 3, 2025 | — |
| 144 | — | 0001959173-25-006328 | Oct 3, 2025 | — |
| 144 | — | 0001959173-25-006327 | Oct 3, 2025 | — |