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.
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 | — |