Arqit Quantum Inc. - ARQQ

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Penserra Capital Management LLC History Added to 1,452,311 19,243 0.23% 0.36% 1 +73,656 5.34% Q1 2026 May 11, 2026
Defiance ETFs, LLC History Added to 1,452,311 19,243 0.28% 0.99% 2 +73,656 5.34% Q1 2026 May 15, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 324,309 4,292 0.01% 0.01% 3 +22,596 7.49% Q1 2026 May 15, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 182,800 2,422 0.0% 0.0% 4 -58,633 -24.29% Q1 2026 May 15, 2026
Kessler Investment Group, LLC History Added to 157,569 2,087 0.99% 0.44% 5 +109,720 229.3% Q1 2026 Apr 10, 2026
CITADEL ADVISORS LLC History Added to 154,500 2,047 0.0% 0.0% 6 +67,200 76.98% Q1 2026 May 15, 2026
UBS Group AG History Reduced 85,435 1,132 0.0% 0.0% 7 -61,962 -42.04% Q1 2026 May 05, 2026
JANE STREET GROUP, LLC History Reduced 66,399 879 0.0% 0.0% 8 -89,876 -57.51% Q1 2026 May 12, 2026
RAYMOND JAMES FINANCIAL INC History Added to 63,837 845 0.0% 0.0% 9 +584 0.92% Q1 2026 May 14, 2026
Crawford Fund Management, LLC History Reduced 60,000 795 0.15% 0.22% 10 -15,000 -20.0% Q1 2026 May 15, 2026
MILLENNIUM MANAGEMENT LLC History New 54,026 715 0.0% 11 +54,026 New Q1 2026 May 15, 2026
Legal & General Group Plc History Reduced 52,632 698 0.0% 0.0% 12 -13,600 -20.53% Q1 2026 May 08, 2026
RENAISSANCE TECHNOLOGIES LLC History New 41,400 548 0.0% 13 +41,400 New Q1 2026 May 14, 2026
TUDOR INVESTMENT CORP ET AL History New 38,069 504 0.0% 14 +38,069 New Q1 2026 May 15, 2026
BANQUE PICTET & CIE SA History No change 36,000 477 0.0% 0.0% 15 0 0.0% Q1 2026 Apr 14, 2026
SBI Securities Co., Ltd. History Reduced 27,109 359 0.01% 0.02% 16 -3,970 -12.77% Q1 2026 Apr 27, 2026
Advisory Services Network, LLC History Added to 21,747 288 0.0% 0.01% 17 +1,803 9.04% Q1 2026 May 15, 2026
GROUP ONE TRADING LLC History Reduced 21,256 281 0.0% 0.0% 18 -3,243 -13.24% Q1 2026 May 13, 2026
VAN ECK ASSOCIATES CORP History Added to 20,153 267 0.0% 0.0% 19 +6,960 52.76% Q1 2026 May 15, 2026
BANK OF AMERICA CORP /DE/ History Reduced 19,192 254 0.0% 0.0% 20 -312 -1.6% Q1 2026 May 15, 2026
WELLS FARGO & COMPANY/MN History Added to 15,093 199 0.0% 0.0% 21 +4,898 48.04% Q1 2026 May 11, 2026
True Vision MN LLC History New 14,848 196 0.1% 22 +14,848 New Q1 2026 Apr 16, 2026
Headlands Technologies LLC History New 12,321 163 0.02% 23 +12,321 New Q1 2026 May 13, 2026
Bank of New York Mellon Corp History Reduced 11,912 157 0.0% 0.0% 24 -7,064 -37.23% Q1 2026 May 05, 2026
Stonehage Fleming Financial Services Holdings Ltd History No change 11,528 152 0.01% 0.01% 25 0 0.0% Q1 2026 May 13, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History Added to 9,978 132 0.0% 0.0% 26 +2,940 41.77% Q1 2026 May 15, 2026
CITIGROUP INC History Reduced 9,847 130 0.0% 0.0% 27 -9,012 -47.79% Q1 2026 May 11, 2026
MORGAN STANLEY History Reduced 9,379 124 0.0% 0.0% 28 -666 -6.63% Q1 2026 May 15, 2026
ROYAL BANK OF CANADA History Added to 7,012 92 0.0% 0.0% 29 +4,008 133.42% Q1 2026 May 15, 2026
Mirae Asset Global Investments Co., Ltd. History Added to 5,846 77 0.0% 0.0% 30 +827 16.48% Q1 2026 May 04, 2026
FNY Investment Advisers, LLC History New 5,000 66 0.03% 31 +5,000 New Q1 2026 Apr 15, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 3,396 40 0.0% 0.0% 32 +129 3.95% Q1 2026 May 15, 2026
BlackRock, Inc. History Added to 2,232 29 0.0% 0.0% 33 +1,619 264.11% Q1 2026 May 13, 2026
OSAIC HOLDINGS, INC. History Reduced 1,847 24 0.0% 0.0% 34 -1,157 -38.52% Q1 2026 May 15, 2026
Leonteq Securities AG History Reduced 1,725 22 0.0% 0.0% 35 -2,775 -61.67% Q1 2026 Apr 27, 2026
NATIONAL BANK OF CANADA /FI/ History Reduced 1,093 14 0.0% 0.0% 36 -29,534 -96.43% Q1 2026 May 14, 2026
IFP Advisors, Inc History Added to 1,125 14 0.0% 0.0% 38 +586 108.72% Q1 2026 Apr 13, 2026
SIMPLEX TRADING, LLC History Reduced 1,100 14 0.0% 0.0% 37 -100 -8.33% Q1 2026 May 14, 2026
Allworth Financial LP History No change 1,000 13 0.0% 0.0% 39 0 0.0% Q1 2026 May 14, 2026
EFG International AG History No change 1,000 13 0.0% 0.0% 40 0 0.0% Q1 2026 May 15, 2026
HARBOUR INVESTMENTS, INC. History Added to 800 10 0.0% 0.0% 41 +600 300.0% Q1 2026 May 15, 2026
Federation des caisses Desjardins du Quebec History New 696 9 0.0% 42 +696 New Q1 2026 May 13, 2026
Steward Partners Investment Advisory, LLC History New 600 7 0.0% 44 +600 New Q1 2026 May 08, 2026
SIGNATUREFD, LLC History No change 600 7 0.0% 0.0% 43 0 0.0% Q1 2026 Apr 07, 2026
WOLVERINE ASSET MANAGEMENT LLC History Reduced 489 6 0.0% 0.0% 45 -500 -50.56% Q1 2026 May 04, 2026
Quantbot Technologies LP History Added to 444 5 0.0% 0.0% 46 +68 18.09% Q1 2026 May 13, 2026
Parallel Advisors, LLC History Added to 262 3 0.0% 0.0% 48 +196 296.97% Q1 2026 May 07, 2026
Sunbelt Securities, Inc. History No change 250 3 0.0% 0.0% 47 0 0.0% Q1 2026 May 15, 2026
MAI Capital Management History No change 200 2 0.0% 0.0% 49 0 0.0% Q1 2026 May 15, 2026
US BANCORP \DE\ History Added to 135 1 0.0% 0.0% 50 +35 35.0% Q1 2026 May 14, 2026
Heritage Wealth Advisors History No change 130 1 0.0% 0.0% 51 0 0.0% Q1 2026 May 13, 2026
West Financial Advisors, LLC History No change 100 1 0.0% 0.0% 52 0 0.0% Q1 2026 Apr 08, 2026
Veracity Capital LLC History Closed out 0 0 0.08% -12,207 -100.0% Q1 2026 Apr 09, 2026
FLAGSHIP HARBOR ADVISORS, LLC History Closed out 0 0 0.0% -3,439 -100.0% Q1 2026 Apr 28, 2026
Kestra Advisory Services, LLC History Closed out 0 0 0.0% -1,813 -100.0% Q1 2026 Apr 30, 2026
BNP PARIBAS FINANCIAL MARKETS History Closed out 0 0 0.0% -1,733 -100.0% Q1 2026 May 12, 2026
ALBION FINANCIAL GROUP /UT History Closed out 0 0 0.0% -1,000 -100.0% Q1 2026 Apr 27, 2026
Noble Wealth Management PBC History Closed out 0 0 0.01% -880 -100.0% Q1 2026 Apr 02, 2026
Tower Research Capital LLC (TRC) History Closed out 0 0 0.0% -533 -100.0% Q1 2026 May 15, 2026
Cape Investment Advisory, Inc. History Closed out 0 0 0.0% -245 -100.0% Q1 2026 May 15, 2026
Strengthening Families & Communities, LLC History Closed out 0 0 0.0% -50 -100.0% Q1 2026 May 11, 2026
NewEdge Advisors, LLC History Closed out 0 0 -30 -100.0% Q1 2026 May 15, 2026
Investors Portfolio Services LLC History New 28 0 +28 New Q1 2026 May 14, 2026
Turning Point Benefit Group, Inc. History Closed out 0 0 -18 -100.0% Q1 2026 May 12, 2026
TD Waterhouse Canada Inc. History New 2 0 +2 New Q1 2026 May 12, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History Closed out 0 0 -2 -100.0% Q1 2026 May 07, 2026
Vermillion Wealth Management, Inc. History New 1 0 +1 New Q1 2026 Apr 17, 2026
NATIXIS History Closed out 0 0 -1 -100.0% Q1 2026 May 14, 2026
Parkside Financial Bank & Trust History No change 16 0 0 0.0% Q1 2026 May 13, 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND History No change 1 0 0 0.0% Q1 2026 May 14, 2026
MCF Advisors LLC History No change 10 0 0 0.0% Q1 2026 May 11, 2026
CoreCap Advisors, LLC History No change 16 0 0 0.0% Q1 2026 Apr 07, 2026
Covestor Ltd History No change 1 0 0 0.0% Q1 2026 May 05, 2026
Cornerstone Financial Management LLC History No change 39 0 0 0.0% Q1 2026 May 08, 2026