Research paths
Arqit Quantum Inc.
Filer Snapshot
Arqit Quantum Inc.
CIK 0001859690 . SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.
Entity Type
Company
Total Filings
371
Latest Filing
04 May 2026
Industry
n/a
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Open 13D/G or insider pages only when this CIK has those rows.
Symbol
ARQQ, ARQQW on Nasdaq
Business address
3 Orchard Place, London, United Kingdom, SW1H 0BF
State of incorporation
Cayman Islands
Fiscal year end
30 September
Filer intelligence
What SEC filings say about Arqit Quantum Inc.
A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.
SEC source mix
Counts show available parsed rows, not one combined ownership total.
No XML rows yet
13F portfolio
No rows yet
Quarterly institutional portfolio holdings.
13D/G stakes
No rows yet
Beneficial ownership and large-stake disclosures.
Forms 3/4/5
No rows yet
Officer, director, and 10% owner holdings or transactions.
No parsed ownership summary yet
We still show the SEC filing timeline below. The intelligence summary will populate when parsed 13F, 13D/G, or Forms 3/4/5 data exists for this CIK.
Filer Overview
Arqit Quantum Inc. has filed 371 SEC EDGAR filings since 12 May 2021.
Common forms include 4, 6-K, 144, 3 and more.
Latest Filings
Recent SEC filings for Arqit Quantum Inc. with direct links to document and filing folders.
4
OWNERSHIP DOCUMENT
Filing date
04 May 2026
Reporting date
30 Apr 2026
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
01 May 2026
Reporting date
01 May 2026
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
30 Apr 2026
Reporting date
29 Apr 2026
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
29 Apr 2026
Reporting date
27 Apr 2026
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
27 Apr 2026
Reporting date
23 Apr 2026
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
23 Apr 2026
Reporting date
21 Apr 2026
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
21 Apr 2026
Reporting date
17 Apr 2026
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
20 Apr 2026
Reporting date
Not listed
Next action
Verify source filing
4
OWNERSHIP DOCUMENT
Filing date
17 Apr 2026
Reporting date
15 Apr 2026
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
13 Apr 2026
Reporting date
13 Apr 2026
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
07 Apr 2026
Reporting date
06 Apr 2026
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Apr 2026
Reporting date
Not listed
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
Verify source filing
4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
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4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
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4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
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4
PRIMARY DOCUMENT
Filing date
03 Apr 2026
Reporting date
01 Apr 2026
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2026
Reporting date
Not listed
Next action
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144
File 001-40777
144 filing
Filing date
02 Apr 2026
Reporting date
Not listed
Next action
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144
File 001-40777
144 filing
Filing date
02 Apr 2026
Reporting date
Not listed
Next action
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3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
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3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
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3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
3
PRIMARY DOCUMENT
Filing date
18 Mar 2026
Reporting date
18 Mar 2026
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
04 Mar 2026
Reporting date
04 Mar 2026
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Mar 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
25 Feb 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
20 Feb 2026
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-292677
EFFECT filing
Filing date
26 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-292677
424B5
Filing date
26 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
F-3/A
File 333-292677
F-3/A
Filing date
23 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
F-3
File 333-292677
F-3
Filing date
12 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
12 Jan 2026
Reporting date
12 Jan 2026
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jan 2026
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
11 Dec 2025
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
09 Dec 2025
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-289939
424B3
Filing date
09 Dec 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
09 Dec 2025
Reporting date
09 Dec 2025
Next action
Verify source filing
20-F
File 001-40777
20-F
Filing date
09 Dec 2025
Reporting date
30 Sep 2025
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
12 Nov 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Nov 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
21 Oct 2025
Reporting date
21 Oct 2025
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
20 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
16 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
09 Oct 2025
Reporting date
09 Oct 2025
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2025
Reporting date
Not listed
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
24 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-289939
EFFECT filing
Filing date
19 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-289939
424B3
Filing date
19 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
17 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
F-3/A
File 333-289939
F-3/A
Filing date
15 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-284343
424B5
Filing date
15 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
15 Sep 2025
Reporting date
15 Sep 2025
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
11 Sep 2025
Reporting date
11 Sep 2025
Next action
Verify source filing
UPLOAD
File 333-289939
UPLOAD filing
Filing date
09 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Sep 2025
Reporting date
Not listed
Next action
Verify source filing
F-3
File 333-289939
F-3
Filing date
29 Aug 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
28 Aug 2025
Reporting date
28 Aug 2025
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
26 Aug 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
21 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
18 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
18 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jul 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
25 Jun 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
23 Jun 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
23 Jun 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
23 Jun 2025
Reporting date
Not listed
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
29 May 2025
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
22 May 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
22 May 2025
Reporting date
31 Mar 2025
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
04 Apr 2025
Reporting date
04 Apr 2025
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
18 Mar 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Feb 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
13 Feb 2025
Reporting date
Not listed
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
10 Feb 2025
Reporting date
Not listed
Next action
Verify source filing
S-8
File 333-284706
FORM S-8
Filing date
05 Feb 2025
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-284343
EFFECT filing
Filing date
29 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-284343
424B5
Filing date
29 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
28 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
28 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
File 333-284343
UPLOAD filing
Filing date
27 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
F-3
File 333-284343
F-3
Filing date
17 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
10 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
08 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
08 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
08 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
08 Jan 2025
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
19 Dec 2024
Reporting date
19 Dec 2024
Next action
Verify source filing
SCHEDULE 13D/A
File 005-92850
SCHEDULE 13D/A filing
Filing date
18 Dec 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
16 Dec 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
FORM
Filing date
13 Dec 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
FORM
Filing date
10 Dec 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
09 Dec 2024
Reporting date
09 Dec 2024
Next action
Verify source filing
20-F
File 001-40777
20-F
Filing date
05 Dec 2024
Reporting date
30 Sep 2024
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
05 Dec 2024
Reporting date
05 Dec 2024
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
03 Dec 2024
Reporting date
03 Dec 2024
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
03 Dec 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13G/A
File 005-92850
SC 13G/A
Filing date
14 Nov 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
11 Oct 2024
Reporting date
11 Oct 2024
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
02 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
02 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13G
File 005-92850
SC 13G
Filing date
01 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-268786
424B5
Filing date
01 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
01 Oct 2024
Reporting date
01 Oct 2024
Next action
Verify source filing
424B3
File 333-268786
424B3
Filing date
01 Oct 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
27 Sep 2024
Reporting date
27 Sep 2024
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
19 Sep 2024
Reporting date
19 Sep 2024
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
16 Sep 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
27 Aug 2024
Reporting date
27 Aug 2024
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jul 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jul 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jul 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Jul 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
31 May 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
24 May 2024
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
20 May 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
20 May 2024
Reporting date
31 Mar 2024
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 May 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 May 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
15 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-268786
424B5
Filing date
15 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
15 Apr 2024
Reporting date
15 Apr 2024
Next action
Verify source filing
424B3
File 333-268786
424B3
Filing date
15 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Apr 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Mar 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Mar 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
13 Feb 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Feb 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Feb 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Feb 2024
Reporting date
Not listed
Next action
Verify source filing
SC 13G
File 005-92850
SC 13G
Filing date
26 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
22 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
18 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jan 2024
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
26 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
21 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
19 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
18 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
S-8
File 333-275960
S-8 filing
Filing date
08 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
05 Dec 2023
Reporting date
Not listed
Next action
Verify source filing
20-F
File 001-40777
20-F
Filing date
21 Nov 2023
Reporting date
30 Sep 2023
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
21 Nov 2023
Reporting date
21 Nov 2023
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Nov 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Nov 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Nov 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Nov 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
6-K filing
Filing date
23 Oct 2023
Reporting date
23 Oct 2023
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
12 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
04 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Oct 2023
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
15 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-268786
424B5
Filing date
11 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
11 Sep 2023
Reporting date
11 Sep 2023
Next action
Verify source filing
424B3
File 333-268786
424B3
Filing date
08 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
07 Sep 2023
Reporting date
07 Sep 2023
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
07 Sep 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
07 Sep 2023
Reporting date
07 Sep 2023
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
08 Aug 2023
Reporting date
08 Aug 2023
Next action
Verify source filing
144/A
File 001-40777
144/A filing
Filing date
03 Aug 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Aug 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Aug 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Aug 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
02 Aug 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
06 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Jul 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
15 Jun 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Jun 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Jun 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
14 Jun 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
02 Jun 2023
Reporting date
02 Jun 2023
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
17 May 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
17 May 2023
Reporting date
17 May 2023
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
09 May 2023
Reporting date
Not listed
Next action
Verify source filing
144
File 001-40777
144 filing
Filing date
03 Apr 2023
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-268786
424B5
Filing date
21 Feb 2023
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
21 Feb 2023
Reporting date
21 Feb 2023
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
03 Feb 2023
Reporting date
Not listed
Next action
Verify source filing
SC 13G
File 005-92850
SC 13G
Filing date
06 Jan 2023
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-268786
EFFECT filing
Filing date
30 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
424B5
File 333-268786
424B5
Filing date
30 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
28 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
F-3/A
File 333-268786
F-3/A
Filing date
28 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
23 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
14 Dec 2022
Reporting date
14 Dec 2022
Next action
Verify source filing
F-3
File 333-268786
F-3
Filing date
14 Dec 2022
Reporting date
Not listed
Next action
Verify source filing
20-F
File 001-40777
20-F
Filing date
14 Dec 2022
Reporting date
30 Sep 2022
Next action
Verify source filing
EFFECT
File 333-259982
EFFECT filing
Filing date
22 Nov 2022
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
22 Nov 2022
Reporting date
Not listed
Next action
Verify source filing
POS AM
File 333-259982
POS AM
Filing date
09 Nov 2022
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
08 Sep 2022
Reporting date
08 Sep 2022
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
15 Aug 2022
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
08 Aug 2022
Reporting date
08 Aug 2022
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
11 Jul 2022
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
28 Jun 2022
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
15 Jun 2022
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
01 Jun 2022
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
12 May 2022
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
12 May 2022
Reporting date
12 May 2022
Next action
Verify source filing
S-8
File 333-262215
S-8
Filing date
18 Jan 2022
Reporting date
Not listed
Next action
Verify source filing
SC 13G
File 005-92850
SC 13G
Filing date
06 Jan 2022
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-259982
EFFECT filing
Filing date
23 Dec 2021
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
23 Dec 2021
Reporting date
Not listed
Next action
Verify source filing
POS AM
File 333-259982
FORM POS AM
Filing date
16 Dec 2021
Reporting date
Not listed
Next action
Verify source filing
20-F
File 001-40777
FORM 20-F
Filing date
16 Dec 2021
Reporting date
30 Sep 2021
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
16 Dec 2021
Reporting date
16 Dec 2021
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
09 Dec 2021
Reporting date
Not listed
Next action
Verify source filing
EFFECT
File 333-259982
EFFECT filing
Filing date
12 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-259982
424B3
Filing date
12 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
SC 13D/A
File 005-92850
SC 13D/A
Filing date
12 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
12 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
F-1/A
File 333-259982
F-1/A
Filing date
08 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
06 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
04 Oct 2021
Reporting date
04 Oct 2021
Next action
Verify source filing
F-1
File 333-259982
FORM F-1
Filing date
01 Oct 2021
Reporting date
Not listed
Next action
Verify source filing
SC 13D
File 005-92850
SCHEDULE 13D
Filing date
21 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
SC 13D
File 005-92850
SCHEDULE 13D
Filing date
17 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
SC 13D
File 005-92850
SC 13D
Filing date
14 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
SC 13D
File 005-92850
SC 13D
Filing date
13 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
20-F
File 001-40777
FORM 20-F
Filing date
10 Sep 2021
Reporting date
01 Sep 2021
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
08 Sep 2021
Reporting date
08 Sep 2021
Next action
Verify source filing
6-K
File 001-40777
FORM 6-K
Filing date
03 Sep 2021
Reporting date
03 Sep 2021
Next action
Verify source filing
CERT
File 001-40777
8A CERT
Filing date
03 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
8-A12B
File 001-40777
FORM 8-A12B
Filing date
01 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
425
File 333-256591
425
Filing date
01 Sep 2021
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-256591
424B3
Filing date
30 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
File 333-256591
425
Filing date
30 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
27 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
File 333-256591
425
Filing date
27 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
24 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
424B3
File 333-256591
424B3
Filing date
23 Aug 2021
Reporting date
Not listed
Next action
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425
425
Filing date
19 Aug 2021
Reporting date
Not listed
Next action
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425
425
Filing date
12 Aug 2021
Reporting date
Not listed
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425
425
Filing date
11 Aug 2021
Reporting date
Not listed
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425
425
Filing date
11 Aug 2021
Reporting date
Not listed
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425
425
Filing date
09 Aug 2021
Reporting date
Not listed
Next action
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425
425
Filing date
03 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
03 Aug 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
03 Aug 2021
Reporting date
Not listed
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425
425
Filing date
03 Aug 2021
Reporting date
Not listed
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EFFECT
File 333-256591
EFFECT filing
Filing date
30 Jul 2021
Reporting date
Not listed
Next action
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424B3
File 333-256591
424B3
Filing date
30 Jul 2021
Reporting date
Not listed
Next action
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CORRESP
CORRESP filing
Filing date
29 Jul 2021
Reporting date
Not listed
Next action
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CORRESP
CORRESP filing
Filing date
29 Jul 2021
Reporting date
Not listed
Next action
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F-4/A
File 333-256591
F-4/A
Filing date
29 Jul 2021
Reporting date
Not listed
Next action
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UPLOAD
UPLOAD filing
Filing date
27 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
27 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
27 Jul 2021
Reporting date
Not listed
Next action
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F-4/A
File 333-256591
F-4/A
Filing date
26 Jul 2021
Reporting date
Not listed
Next action
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425
FORM 425
Filing date
23 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
19 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
CORRESP
CORRESP filing
Filing date
09 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
F-4/A
File 333-256591
F-4/A
Filing date
09 Jul 2021
Reporting date
Not listed
Next action
Verify source filing
UPLOAD
UPLOAD filing
Filing date
24 Jun 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
17 Jun 2021
Reporting date
Not listed
Next action
Verify source filing
F-4
File 333-256591
F-4
Filing date
28 May 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
20 May 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
17 May 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
12 May 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
12 May 2021
Reporting date
Not listed
Next action
Verify source filing
425
425
Filing date
12 May 2021
Reporting date
Not listed
Next action
Verify source filing
About this filer
Arqit Quantum Inc. files with the SEC under CIK 0001859690. This page aggregates EDGAR filings and related ownership activity.
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.
CIK / security context first
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