Security key
G0567U127
Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (ARQQ)
CUSIP: G0567U127
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Ordinary Shares, par value $0.0025 per share
- Total 13F shares
- 3,758,584
- Total 13F value
- $82,320,373
- Share change
- +533,125
- Put/Call ratio
- 91%
- SEC-reported price per share
- $21.88
- Number of holders
- 60
- Value change
- +$8,831,496
- Number of buys
- 32
- Number of sells
- 27
- Shares outstanding
- 24,088,896
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
60
Top holders
10
ARQQ full security history
Ownership snapshot
Full 13F holder table
Arqit Quantum Inc. SEC filings
Arqit Quantum Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ARQQ - Arqit Quantum Inc. - Ordinary Shares, par value $0.0025 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
D2BW Ltd
Disclosed value leader
Penserra Capital Manageme...
Comparable rows
15/15
Latest evidence
30 Sep 2025
13D/G
13F
Lead comparable stake: 5.8%
13D/G row: D2BW Ltd
Showing 1-6 of 15 holder rows.
Quick read
D2BW Ltd leads the comparable SEC ownership view at 5.8%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens D2BW Ltd's linked filing trail.
Comparable ownership
Top 5
D2BW Ltd
5.8%
Evolution Technology Fund II, SCSP.
3.1%
Penserra Capital Management LLC
4.2%
SUSQUEHANNA INTERNATIONAL GROUP, LLP
0.8%
RAYMOND JAMES FINANCIAL INC
0.35%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| D2BW Ltd |
13D/G
Williams David John
|
5.8%
|
$11,990,930
726,723 shares
|
$0 | 11 Dec 2024 |
| Evolution Technology Fund II, SCSP. |
13D/G
The Evolution Technology Fund II SCSP
|
3.1%
|
$6,554,774
397,259 shares
|
$0 | 30 Sep 2024 |
| Penserra Capital Management LLC |
13F
Company
|
4.2%
|
$39,573,000
1,021,248 shares
|
— | 30 Sep 2025 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
0.8%
|
$7,471,698
192,818 shares
|
— | 30 Sep 2025 |
| RAYMOND JAMES FINANCIAL INC |
13F
Company
|
0.35%
|
$3,282,629
84,713 shares
|
— | 30 Sep 2025 |
| UBS Group AG |
13F
Company
|
0.32%
|
$2,967,709
76,586 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
60
Shares
3,758,584
Rows available
60
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
57
Q4 2025 holders
60
Holder diff
3
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|