13F reference period
Q2 2026
Security Snapshot
Arqit Quantum Inc. - Ordinary Shares (ARQQ) Institutional Ownership
CUSIP: G0567U127
13F Institutional Holders and Ownership History from Q3 2024 to Q3 2026
Institutions Reporting
63
Shares (Excl. Options)
12.3M
Full value: 12,298,466 · shares · 30 Jun 2026Price
$29.72
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Ordinary Shares
- Symbol
- ARQQ on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 12,298,466
- Total 13F value
- $360,592,385
- Portfolio coverage rank
- 0%
- Share change
- +8,294,163
- Value change
- +$245,177,826
- Number of holders
- 63
- Shares outstanding
- 18,122,060
- SEC-reported price per share
- $24.06
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- ARQQ - Arqit Quantum Inc. - Ordinary Shares is tracked under CUSIP G0567U127.
- 63 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 56 to 63 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$53.24M
Full value: $53,240,336 · USD · 31 Mar 2026.$360.59M
Full value: $360,592,385 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 63 institutions filings for Q2 2026.
Security key
G0567U127
13F reference period
Q2 2026
13F holders
63
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
ARQQ full holder history
Arqit Quantum Inc. SEC filings
Arqit Quantum Inc. company facts
Arqit Quantum Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G0567U127:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
ARQQ
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Heritage Assets SCSp. | 39% | -7.6% | $138,079,960 | +$388,669 | 9,298,314 | +0.28% | Manfredi Lefebvre d'Ovidio | 21 May 2026 |
| Notion Capital III LP | 10% | $43,039,892 | 1,812,206 | Notion Capital III LP | 26 Jun 2026 | |||
| D2BW Ltd | 5.8% | $11,990,930 | 726,723 | Williams David John | 11 Dec 2024 | |||
| Evolution Technology Fund II, SCSP. | 3.1% | $6,554,774 | 397,259 | The Evolution Technology Fund II SCSP | 30 Sep 2024 | |||
| ICS OPPORTUNITIES, LTD. | 0.3% | $943,798 | 58,621 | Millennium Management LLC | 16 Jun 2026 |
As of 30 Jun 2026,
63
institutional investors reported holding
shares of
Arqit Quantum Inc. - Ordinary Shares (ARQQ).
This represents
68%
of the company’s total
outstanding shares.
12.3M
Full value: 12,298,466 · shares · 30 Jun 202618.12M
Full value: 18,122,060 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
67%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Defiance ETFs, LLC | 28% | 5,099,023 | +251% | 2% | $147,106,813 |
| Penserra Capital Management LLC | 28% | 5,081,219 | +250% | 1.2% | $151,013,000 |
| UBS Group AG | 2.9% | 522,874 | +512% | 0% | $15,539,816 |
| Legal & General Group Plc | 1.5% | 275,939 | +424% | 0% | $8,147,570 |
| NATIONAL BANK OF CANADA /FI/ | 1.2% | 212,000 | +19296% | 0.01% | $6,300,640 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1% | 188,182 | -42% | 0.01% | $5,585,228 |
| Kessler Investment Group, LLC | 0.84% | 153,105 | -2.8% | 1.9% | $4,550,281 |
| Bank of New York Mellon Corp | 0.55% | 99,146 | +732% | 0% | $2,946,608 |
| RAYMOND JAMES FINANCIAL INC | 0.53% | 95,250 | +49% | 0% | $2,830,830 |
| MILLENNIUM MANAGEMENT LLC | 0.43% | 78,717 | +46% | 0% | $2,339,469 |
| BANK OF AMERICA CORP /DE/ | 0.3% | 54,192 | +182% | 0% | $1,610,586 |
| VAN ECK ASSOCIATES CORP | 0.27% | 49,487 | +146% | 0% | $1,470,754 |
| Cetera Investment Advisers | 0.21% | 38,198 | 0% | $1,135,245 | |
| BANQUE PICTET & CIE SA | 0.2% | 36,000 | 0% | 0.01% | $1,069,920 |
| KKM Financial LLC | 0.17% | 31,394 | 0.07% | $537,779 | |
| Man Group plc | 0.14% | 26,210 | 0% | $778,961 | |
| SBI Securities Co., Ltd. | 0.14% | 26,135 | -3.6% | 0.02% | $776,732 |
| Advisory Services Network, LLC | 0.12% | 21,737 | -0.05% | 0.01% | $646,023 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.12% | 21,296 | +113% | 0% | $632,917 |
| WELLS FARGO & COMPANY/MN | 0.12% | 21,291 | +41% | 0% | $632,768 |
| LPL Financial LLC | 0.09% | 17,109 | 0% | $508,479 | |
| MORGAN STANLEY | 0.09% | 16,276 | +74% | 0% | $483,723 |
| Tidal Investments LLC | 0.09% | 16,020 | 0% | $476,114 | |
| CITIGROUP INC | 0.08% | 14,572 | +48% | 0% | $433,080 |
| GROUP ONE TRADING LLC | 0.07% | 12,682 | -5.8% | 0.01% | $376,909 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
9
Headline period
Q2 2026
Rows shown
1-9 of 9
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 218,167 | $5,249,086 | -$440,601 | $24.06 | 11 |
| 2026 Q2 | 12,298,466 | $360,592,385 | +$245,177,826 | $29.72 | 63 |
| 2026 Q1 | 4,018,794 | $53,240,336 | +$3,122,254 | $13.25 | 56 |
| 2025 Q4 | 3,758,584 | $82,320,373 | +$8,831,496 | $21.88 | 60 |
| 2025 Q3 | 1,853,070 | $71,770,818 | +$25,147,185 | $38.75 | 57 |
| 2025 Q2 | 1,202,647 | $44,476,147 | +$28,918,523 | $37.03 | 41 |
| 2025 Q1 | 496,588 | $6,880,844 | -$346,034 | $13.86 | 31 |
| 2024 Q4 | 310,891 | $12,068,293 | +$9,502,613 | $38.84 | 29 |
| 2024 Q3 | 45,079 | $256,951 | +$256,951 | $5.70 | 12 |