Arqit QuantumARQQ

13F holders, Q2 2026 (June 30)
64holders +8
20new positions
11sold out
1famous investor
$29.30avg. 13F price*

At the end of Q2 2026, 64 institutions reported holding Arqit Quantum Inc. (ARQQ) in their 13F filings, up 8 from Q1 2026. 20 opened new positions and 11 sold out. The largest holders were Penserra Capital Management LLC ($151.0M), Defiance ETFs, LLC ($147.1M) and UBS Group AG ($15.5M). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).

Company
Arqit Quantum Inc.
CUSIP
G0567U127
Latest filing quarter
Q2 2026

History

Number of 13F holders

020406080 Q3 2024: 13Q3 2024Q4 2024: 30Q4 2024Q1 2025: 31Q1 2025Q2 2025: 42Q2 2025Q3 2025: 57Q3 2025Q4 2025: 60Q4 2025Q1 2026: 56Q1 2026Q2 2026: 64Q2 2026

Total Exit/New Position Q1 2026 → Q2 2026

InstitutionsTotal Value
New Positions20$5.2M
Exits11$1.8M

All 13F filers, Q1 2026 → Q2 2026: 8,588,673 shares bought and 285,066 shares sold, net +8,303,607 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 64 holders

Penserra Capital Management LLC 1.16% Add +249.9% 5,081,219 $151.0M
Defiance ETFs, LLC 2.05% Add +251.1% 5,099,023 $147.1M
UBS Group AG 0.00% Add +512.0% 522,874 $15.5M
Legal & General Group Plc 0.00% Add +424.3% 275,939 $8.1M
National Bank of Canada 0.01% Add +19296.2% 212,000 $6.3M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% Reduce -42.0% 188,182 $5.6M
Kessler Investment Group, LLC 1.94% Reduce -2.8% 153,105 $4.6M
Bank of New York Mellon Corp 0.00% Add +732.3% 99,146 $2.9M
Raymond James Financial Inc. 0.00% Add +49.2% 95,250 $2.8M
Millennium Management 0.00% Add +45.7% 78,717 $2.3M
Bank of America Corp. 0.00% Add +182.4% 54,192 $1.6M
Van Eck Associates Corp. 0.00% Add +145.6% 49,487 $1.5M
Cetera Investment Advisers 0.00% New 38,198 $1.1M
Banque Pictet & Cie SA 0.01% No change 36,000 $1.1M
Man Group plc 0.00% New 26,210 $779K
SBI Securities Co., Ltd. 0.02% Reduce -3.6% 26,135 $777K
Advisory Services Network, LLC 0.01% Reduce -0.1% 21,737 $646K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +113.4% 21,296 $633K
Wells Fargo & Company 0.00% Add +41.1% 21,291 $633K
KKM Financial LLC 0.07% New 31,394 $538K
LPL Financial LLC 0.00% New 17,109 $508K
Morgan Stanley 0.00% Add +73.5% 16,276 $484K
Tidal Investments LLC 0.00% New 16,020 $476K
Citigroup Inc. 0.00% Add +48.0% 14,572 $433K
Group One Trading LLC 0.01% Reduce -5.8% 12,682 $377K
Simplex Trading, LLC 0.01% New 11,472 $341K
Royal Bank of Canada 0.00% Add +35.8% 9,519 $283K
Geode Capital Management, LLC 0.00% New 9,294 $276K
HSBC Holdings PLC 0.00% New 8,453 $249K
Heck Capital Advisors, LLC 0.01% New 7,882 $234K
Goldman Sachs Group Inc. 0.00% New 7,293 $217K
McGuire Investment Group, LLC 0.02% New 6,928 $206K
BlackRock, Inc. 0.00% Add +195.1% 6,587 $196K
Mirae Asset Global Investments Co., Ltd. 0.00% Reduce -41.1% 3,444 $102K
Jones Financial Companies LLLP 0.00% Add +19.9% 4,071 $99K
Osaic Holdings, Inc. 0.00% Add +74.1% 3,215 $96K
Center for Financial Planning, Inc. 0.01% New 2,818 $84K
Leonteq Securities AG 0.00% Reduce -13.0% 1,500 $45K
Tower Research Capital LLC (TRC) 0.00% New 1,254 $37K
EFG International AG 0.00% No change 1,000 $30K
Rockefeller Capital Management L.P. 0.00% New 1,000 $30K
Harbour Investments, Inc. 0.00% Add +12.5% 900 $27K
Signaturefd, LLC 0.00% No change 600 $18K
Steward Partners Investment Advisory, LLC 0.00% No change 600 $18K
Ameritas Advisory Services, LLC 0.00% New 564 $17K
BNP Paribas Financial Markets 0.00% New 563 $17K
Wolverine Asset Management LLC 0.00% No change 489 $15K
IFP Advisors, Inc 0.00% Reduce -83.6% 185 $5K
Farther Finance Advisors, LLC 0.00% New 172 $5K
Heritage Wealth Advisors 0.00% No change 130 $4K
Parallel Advisors, LLC 0.00% Reduce -53.4% 122 $4K
West Financial Advisors, LLC 0.00% No change 100 $3K
Quarry LP 0.00% New 40 $1K
Deutsche Bank AG 0.00% New 40 $1K
US Bancorp \de 0.00% Reduce -74.1% 35 $1K
Core Capital Management & Research, inc. 0.00% — 44 $930
Y.D. More Investments Ltd 0.00% New 8,881 $886
Investors Portfolio Services LLC 0.00% No change 28 $832
Cornerstone Financial Management LLC 0.00% Reduce -35.9% 25 $743
Parkside Financial Bank & Trust 0.00% No change 16 $476
CoreCap Advisors, LLC 0.00% No change 16 $476
MCF Advisors LLC 0.00% No change 10 $298
TD Waterhouse Canada Inc. 0.00% No change 2 $57
Healthcare of Ontario Pension Plan Trust Fund 0.00% No change 1 $30

"% of holder's portfolio" is ARQQ's weight in each manager's 13F, not the share of Arqit Quantum Inc. the manager owns.