Arqit QuantumARQQ

13F holders, Q3 2025 (September 30)
57holders +15
20new positions
7sold out
2famous investors
$38.73avg. 13F price*

At the end of Q3 2025, 57 institutions reported holding Arqit Quantum Inc. (ARQQ) in their 13F filings, up 15 from Q2 2025. 20 opened new positions and 7 sold out. The largest holders were Penserra Capital Management LLC ($39.6M), Susquehanna International Group, LLP ($7.5M) and Raymond James Financial Inc. ($3.3M). 2 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and 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 Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions20$6.4M
Exits7$1.2M

All 13F filers, Q2 2025 → Q3 2025: 751,259 shares bought and 104,086 shares sold, net +647,173 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 57 holders

Penserra Capital Management LLC 0.47% Add +43.4% 1,021,248 $39.6M
Susquehanna International Group, LLP 0.01% Add +391.1% 192,818 $7.5M
Raymond James Financial Inc. 0.00% Add +86.6% 84,713 $3.3M
UBS Group AG 0.00% Reduce -28.9% 76,586 $3.0M
Legal & General Group Plc 0.00% Add +4.4% 75,771 $2.9M
SBI Securities Co., Ltd. 0.04% Add +10.0% 40,249 $1.6M
Banque Pictet & Cie SA 0.01% New 36,000 $1.4M
JPMorgan Chase & Co. 0.00% Add +226.1% 34,033 $1.3M
Jane Street Group, LLC 0.00% New 29,304 $1.1M
Van Eck Associates Corp. 0.00% Add +460.2% 26,615 $1.0M
Advisory Services Network, LLC 0.01% Reduce -7.7% 19,944 $773K
Simplex Trading, LLC 0.02% Add +5811.3% 17,793 $689K
Tudor Investment Corporation 0.00% New 16,763 $650K
Millennium Management 0.00% New 15,161 $587K
Cookson Peirce & Co. Inc. 0.02% New 15,000 $581K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +82.4% 14,473 $561K
Informed Momentum Co LLC 0.06% New 14,122 $547K
Veracity Capital LLC 0.16% Add +11.0% 13,020 $505K
Envestnet Asset Management Inc. 0.00% Add +11.1% 13,002 $504K
LPL Financial LLC 0.00% Reduce -6.5% 9,530 $369K
Citigroup Inc. 0.00% New 9,517 $369K
Morgan Stanley 0.00% Reduce -60.5% 8,064 $312K
Geode Capital Management, LLC 0.00% No change 7,246 $281K
Virtu Financial LLC 0.01% New 6,306 $244K
Cetera Investment Advisers 0.00% New 6,156 $239K
Cresset Asset Management, LLC 0.00% New 6,112 $237K
Biltmore Family Office, LLC 0.03% Reduce -15.3% 5,777 $224K
Wolverine Trading, LLC 0.00% Reduce -49.6% 6,305 $223K
Group One Trading LLC 0.01% New 5,237 $203K
Royal Bank of Canada 0.00% Reduce -78.4% 4,664 $181K
Leonteq Securities AG 0.01% Add +42.2% 3,625 $140K
MASO CAPITAL PARTNERS Ltd 0.18% New 2,840 $110K
Wells Fargo & Company 0.00% Add +430.1% 2,518 $98K
Jones Financial Companies LLLP 0.00% Add +333.4% 2,206 $80K
BlackRock, Inc. 0.00% Reduce -38.7% 2,001 $78K
Osaic Holdings, Inc. 0.00% Add +48.8% 1,872 $65K
Albion Financial Group 0.00% No change 1,000 $39K
Allworth Financial LP 0.00% No change 1,000 $39K
National Bank of Canada 0.00% New 706 $27K
Noble Wealth Management PBC 0.01% — 700 $27K
Steward Partners Investment Advisory, LLC 0.00% New 700 $27K
Signaturefd, LLC 0.00% Reduce -20.0% 600 $23K
Wolverine Asset Management LLC 0.00% New 489 $19K
Bank of America Corp. 0.00% Add +45.0% 290 $11K
Sunbelt Securities, Inc. 0.00% New 250 $10K
Tower Research Capital LLC (TRC) 0.00% Add +61.5% 147 $6K
Heritage Wealth Advisors 0.00% Add +103.7% 110 $4K
West Financial Advisors, LLC 0.00% No change 100 $4K
Ameritas Advisory Services, LLC 0.00% New 100 $4K
US Bancorp \de 0.00% No change 100 $4K
Caitong International Asset Management Co., Ltd 0.00% New 69 $3K
Parallel Advisors, LLC 0.00% No change 66 $3K
Root Financial Partners, LLC 0.00% New 24 $930
CoreCap Advisors, LLC 0.00% New 16 $620
MCF Advisors LLC 0.00% No change 10 $388
Natixis 0.00% No change 1 $39
Healthcare of Ontario Pension Plan Trust Fund 0.00% No change 1 $39

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