Arqit Quantum Inc. - ARQQ

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q2 2026 · Compare: Q1 2026
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 5,081,219 151,013 1.16% 0.23% 1 +3,628,908 249.87% Q2 2026 Aug 13, 2026
Defiance ETFs, LLC History Added to 5,099,023 147,106 2.0% 0.28% 2 +3,646,712 251.1% Q2 2026 Aug 14, 2026
UBS Group AG History Added to 522,974 15,542 0.0% 0.0% 3 +437,539 512.13% Q2 2026 Aug 13, 2026
NATIONAL BANK OF CANADA /FI/ History Added to 214,122 12,607 0.01% 0.0% 4 +213,029 19490.3% Q2 2026 Aug 10, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 310,500 9,228 0.0% 0.0% 5 +127,700 69.86% Q2 2026 Aug 14, 2026
JANE STREET GROUP, LLC History Added to 293,200 8,713 0.0% 0.0% 6 +226,801 341.57% Q2 2026 Aug 14, 2026
Legal & General Group Plc History Added to 275,939 8,147 0.0% 0.0% 7 +223,307 424.28% Q2 2026 Aug 14, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 188,182 5,585 0.01% 0.01% 8 -136,127 -41.97% Q2 2026 Aug 14, 2026
CITADEL ADVISORS LLC History Added to 164,800 4,897 0.0% 0.0% 9 +10,300 6.67% Q2 2026 Sep 02, 2026
Kessler Investment Group, LLC History Reduced 153,105 4,550 1.94% 0.99% 10 -4,464 -2.83% Q2 2026 Jul 13, 2026
Crawford Fund Management, LLC History Added to 148,000 4,398 0.67% 0.15% 11 +88,000 146.67% Q2 2026 Aug 14, 2026
Bank of New York Mellon Corp History Added to 99,146 2,946 0.0% 0.0% 12 +87,234 732.32% Q2 2026 Aug 06, 2026
RAYMOND JAMES FINANCIAL INC History Added to 95,250 2,830 0.0% 0.0% 13 +31,413 49.21% Q2 2026 Aug 14, 2026
MILLENNIUM MANAGEMENT LLC History Added to 78,717 2,339 0.0% 0.0% 14 +24,691 45.7% Q2 2026 Aug 14, 2026
BANK OF AMERICA CORP /DE/ History Added to 54,192 1,610 0.0% 0.0% 15 +35,000 182.37% Q2 2026 Aug 14, 2026
VAN ECK ASSOCIATES CORP History Added to 49,487 1,470 0.0% 0.0% 16 +29,334 145.56% Q2 2026 Aug 14, 2026
IMC-Chicago, LLC History New 42,200 1,254 0.0% — 17 +42,200 New Q2 2026 Aug 06, 2026
Cetera Investment Advisers History New 38,198 1,135 0.0% — 18 +38,198 New Q2 2026 Aug 12, 2026
Walleye Capital LLC History New 37,000 1,099 0.0% — 19 +37,000 New Q2 2026 Aug 03, 2026
BANQUE PICTET & CIE SA History No change 36,000 1,069 0.01% 0.0% 20 0 0.0% Q2 2026 Jul 24, 2026
Man Group plc History New 26,210 778 0.0% — 21 +26,210 New Q2 2026 Aug 14, 2026
SBI Securities Co., Ltd. History Reduced 26,135 776 0.02% 0.01% 22 -974 -3.59% Q2 2026 Jul 22, 2026
Advisory Services Network, LLC History Reduced 21,737 646 0.01% 0.0% 23 -10 -0.05% Q2 2026 Aug 12, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History Added to 21,296 632 0.0% 0.0% 25 +11,318 113.43% Q2 2026 Aug 11, 2026
WELLS FARGO & COMPANY/MN History Added to 21,291 632 0.0% 0.0% 24 +6,198 41.07% Q2 2026 Aug 14, 2026
GROUP ONE TRADING LLC History Reduced 20,582 611 0.0% 0.0% 26 -674 -3.17% Q2 2026 Aug 13, 2026
KKM Financial LLC History New 31,394 537 0.07% — 27 +31,394 New Q2 2026 Aug 14, 2026
LPL Financial LLC History New 17,109 508 0.0% — 28 +17,109 New Q2 2026 Aug 07, 2026
MORGAN STANLEY History Added to 16,276 483 0.0% 0.0% 29 +6,897 73.54% Q2 2026 Aug 13, 2026
Tidal Investments LLC History New 16,020 476 0.0% — 30 +16,020 New Q2 2026 Aug 13, 2026
CITIGROUP INC History Added to 14,572 433 0.0% 0.0% 31 +4,725 47.98% Q2 2026 Aug 03, 2026
SIMPLEX TRADING, LLC History Added to 13,072 388 0.0% 0.0% 32 +11,972 1088.36% Q2 2026 Aug 12, 2026
ROYAL BANK OF CANADA History Added to 9,519 283 0.0% 0.0% 33 +2,507 35.75% Q2 2026 Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLC History New 9,294 276 0.0% — 34 +9,294 New Q2 2026 Aug 12, 2026
HSBC HOLDINGS PLC History New 8,453 248 0.0% — 35 +8,453 New Q2 2026 Aug 14, 2026
Heck Capital Advisors, LLC History New 7,882 234 0.01% — 36 +7,882 New Q2 2026 Jul 10, 2026
GOLDMAN SACHS GROUP INC History New 7,293 216 0.0% — 37 +7,293 New Q2 2026 Aug 14, 2026
McGuire Investment Group, LLC History New 6,928 205 0.02% — 38 +6,928 New Q2 2026 Jul 27, 2026
True Vision MN LLC History No change 14,848 196 0.1% 0.1% 39 0 0.0% Q1 2026 Apr 16, 2026
BlackRock, Inc. History Added to 6,587 195 0.0% 0.0% 40 +4,355 195.12% Q2 2026 Aug 07, 2026
Mirae Asset Global Investments Co., Ltd. History Reduced 3,444 102 0.0% 0.0% 41 -2,402 -41.09% Q2 2026 Jul 22, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 4,071 98 0.0% 0.0% 42 +675 19.88% Q2 2026 Aug 14, 2026
OSAIC HOLDINGS, INC. History Added to 3,215 95 0.0% 0.0% 43 +1,368 74.07% Q2 2026 Aug 14, 2026
Center for Financial Planning, Inc. History New 2,818 83 0.01% — 44 +2,818 New Q2 2026 Jul 21, 2026
Leonteq Securities AG History Reduced 1,500 44 0.0% 0.0% 45 -225 -13.04% Q2 2026 Jul 27, 2026
Tower Research Capital LLC (TRC) History New 1,254 37 0.0% — 46 +1,254 New Q2 2026 Aug 11, 2026
Rockefeller Capital Management L.P. History New 1,000 29 0.0% — 48 +1,000 New Q2 2026 Aug 13, 2026
EFG International AG History No change 1,000 29 0.0% 0.0% 47 0 0.0% Q2 2026 Aug 14, 2026
HARBOUR INVESTMENTS, INC. History Added to 900 26 0.0% 0.0% 49 +100 12.5% Q2 2026 Aug 12, 2026
SIGNATUREFD, LLC History No change 600 17 0.0% 0.0% 50 0 0.0% Q2 2026 Jul 23, 2026
Steward Partners Investment Advisory, LLC History No change 600 17 0.0% 0.0% 51 0 0.0% Q2 2026 Aug 13, 2026
Ameritas Advisory Services, LLC History New 564 16 0.0% — 53 +564 New Q2 2026 Aug 14, 2026
BNP PARIBAS FINANCIAL MARKETS History New 563 16 0.0% — 52 +563 New Q2 2026 Aug 13, 2026
WOLVERINE ASSET MANAGEMENT LLC History No change 489 14 0.0% 0.0% 54 0 0.0% Q2 2026 Aug 10, 2026
IFP Advisors, Inc History Reduced 185 5 0.0% 0.0% 55 -940 -83.56% Q2 2026 Jul 20, 2026
Farther Finance Advisors, LLC History New 172 5 0.0% — 56 +172 New Q2 2026 Jul 17, 2026
Parallel Advisors, LLC History Reduced 122 3 0.0% 0.0% 59 -140 -53.44% Q2 2026 Aug 05, 2026
Heritage Wealth Advisors History No change 130 3 0.0% 0.0% 57 0 0.0% Q2 2026 Aug 14, 2026
Sunbelt Securities, Inc. History No change 250 3 0.0% 0.0% 58 0 0.0% Q1 2026 May 15, 2026
West Financial Advisors, LLC History No change 100 2 0.0% 0.0% 60 0 0.0% Q2 2026 Jul 08, 2026
US BANCORP \DE\ History Reduced 35 1 0.0% 0.0% 61 -100 -74.07% Q2 2026 Aug 12, 2026
DEUTSCHE BANK AG\ History New 40 1 0.0% — 62 +40 New Q2 2026 Aug 07, 2026
Quarry LP History New 40 1 0.0% — 63 +40 New Q2 2026 Aug 14, 2026
RENAISSANCE TECHNOLOGIES LLC History Closed out 0 0 — 0.0% — -41,400 -100.0% Q2 2026 Aug 13, 2026
TUDOR INVESTMENT CORP ET AL History Closed out 0 0 — 0.0% — -38,069 -100.0% Q2 2026 Aug 14, 2026
Headlands Technologies LLC History Closed out 0 0 — 0.02% — -12,321 -100.0% Q2 2026 Aug 12, 2026
Stonehage Fleming Financial Services Holdings Ltd History Closed out 0 0 — 0.01% — -11,528 -100.0% Q2 2026 Aug 17, 2026
Y.D. More Investments Ltd History New 8,881 0 — — — +8,881 New Q2 2026 Aug 05, 2026
FNY Investment Advisers, LLC History Closed out 0 0 — 0.03% — -5,000 -100.0% Q2 2026 Jul 08, 2026
Allworth Financial LP History Closed out 0 0 — 0.0% — -1,000 -100.0% Q2 2026 Aug 11, 2026
Federation des caisses Desjardins du Quebec History Closed out 0 0 — 0.0% — -696 -100.0% Q2 2026 Aug 13, 2026
Quantbot Technologies LP History Closed out 0 0 — 0.0% — -444 -100.0% Q2 2026 Aug 12, 2026
MAI Capital Management History Closed out 0 0 — 0.0% — -200 -100.0% Q2 2026 Aug 14, 2026
Core Capital Management & Research, inc. History New 44 0 — — — +44 New Q2 2026 Sep 09, 2026
Basecamp Wealth Advisors LLC History Closed out 0 0 — — — -38 -100.0% Q2 2026 Aug 14, 2026
Cornerstone Financial Management LLC History Reduced 25 0 — — — -14 -35.9% Q2 2026 Aug 28, 2026
Vermillion Wealth Management, Inc. History Closed out 0 0 — — — -1 -100.0% Q2 2026 Jul 15, 2026
Parkside Financial Bank & Trust History No change 16 0 — — — 0 0.0% Q2 2026 Sep 04, 2026
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND History No change 1 0 — — — 0 0.0% Q2 2026 Aug 13, 2026
MCF Advisors LLC History No change 10 0 — — — 0 0.0% Q2 2026 Aug 12, 2026
CoreCap Advisors, LLC History No change 16 0 — — — 0 0.0% Q2 2026 Jul 06, 2026
Covestor Ltd History No change 1 0 — — — 0 0.0% Q2 2026 Aug 07, 2026
TD Waterhouse Canada Inc. History No change 2 0 — — — 0 0.0% Q2 2026 Jul 27, 2026
Investors Portfolio Services LLC History No change 28 0 — — — 0 0.0% Q2 2026 Aug 14, 2026