ARQQ · Company research
Arqit Quantum Inc. Ordinary Shares (ARQQ): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| Y.D. More Investments Ltd | 1870364 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8881 | 886 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| West Financial Advisors, LLC | 1843684 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 100 | 2972 | — | — | — | Jul 8, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9519 | 283000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITIGROUP INC | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10785 | 320530 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| MERCER GLOBAL ADVISORS INC /ADV | 853758 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 320 | 9510 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Quarry LP | 1965207 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40 | 1189 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Ameritas Advisory Services, LLC | 1901275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 564 | 16776 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Vestcor Inc | 1536925 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 75000 | 5 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Foundations Investment Advisors, LLC | 1743404 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2953810 | 211197 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 111900 | 3325668 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Steward Partners Investment Advisory, LLC | 1723397 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 600 | 17832 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| LPL Financial LLC | 1403438 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17109 | 508479 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| DEUTSCHE BANK AG\ | 948046 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 40 | 1189 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| IFP Advisors, Inc | 1641866 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 185 | 5498 | — | — | — | Jul 20, 2026 | SEC_13F_DATASET |
| Legal & General Group Plc | 764068 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 275939 | 8147570 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Man Group plc | 1637460 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26210 | 778961 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| EFG International AG | 2109868 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1000 | 29755 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| IMC-Chicago, LLC | 1452861 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 77700 | 2309244 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 453076 | 13465419 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RAYMOND JAMES FINANCIAL INC | 720005 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 68084 | 2023456 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JANE STREET GROUP, LLC | 1595888 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 221700 | 6588924 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 246100 | 7314092 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SLT Holdings LLC | 2052222 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2953810 | 211197 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| MORGAN STANLEY | 895421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11614 | 345168 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 1535845 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 73728 | 5272 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| NATIONAL BANK OF CANADA /FI/ | 926171 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 205 | 609260 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Leonteq Securities AG | 1535950 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1500 | 44580 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Tidal Investments LLC | 1600064 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16020 | 476114 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Investors Portfolio Services LLC | 2073833 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 28 | 832 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MCF Advisors LLC | 1602905 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10 | 298 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| OSAIC HOLDINGS, INC. | 1677044 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1435 | 42648 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WELLS FARGO & COMPANY/MN | 72971 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 16659 | 495105 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Penserra Capital Management LLC | 1593324 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5081219 | 151013 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Cetera Investment Advisers | 1666741 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 38198 | 1135245 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| KKM Financial LLC | 2001943 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31394 | 537779 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| TD Waterhouse Canada Inc. | 1999606 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2 | 57 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| Bank of New York Mellon Corp | 1390777 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 99144 | 2946560 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| Center for Financial Planning, Inc. | 1803557 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2818 | 83751 | — | — | — | Jul 21, 2026 | SEC_13F_DATASET |
| Silver Rock Financial LP | 1674784 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 42139 | 3013 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Crawford Fund Management, LLC | 1816427 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 92700 | 2755044 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| JONES FINANCIAL COMPANIES LLLP | 815917 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4071 | 98762 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Tower Research Capital LLC (TRC) | 1533421 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1254 | 37269 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| GROUP ONE TRADING LLC | 932540 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 59800 | 1777256 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Defiance ETFs, LLC | 1732541 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5099023 | 147106813 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WOLVERINE ASSET MANAGEMENT LLC | 1279891 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 489 | 14533 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5822 | 173030 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| BANQUE PICTET & CIE SA | 1535602 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 36000 | 1069920 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| Heck Capital Advisors, LLC | 2046227 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7882 | 234254 | — | — | — | Jul 10, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26135 | 776732 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| ABLE Financial Group, LLC | 1977500 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 30154 | 2156 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| Mirae Asset Global Investments Co., Ltd. | 1569395 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3444 | 102356 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| Goldman Sachs Group Inc. | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 47320 | 3383000 | — | — | — | Aug 14, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5822 | 173030000 | — | — | — | Aug 7, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10785 | 320530000 | — | — | — | Aug 3, 2026 | SEC_13F_HR |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1368163 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 21296 | 632917 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Rockefeller Capital Management L.P. | 1739439 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1000 | 29720 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Kessler Investment Group, LLC | 1525947 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 153105 | 4550281 | — | — | — | Jul 13, 2026 | SEC_13F_DATASET |
| BNP PARIBAS FINANCIAL MARKETS | 1166588 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 563 | 16732 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| MILLENNIUM MANAGEMENT LLC | 1273087 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 78717 | 2339469 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BANK OF AMERICA CORP /DE/ | 70858 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 35000 | 1040200 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GEODE CAPITAL MANAGEMENT, LLC | 1214717 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 9294 | 276217 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| VAN ECK ASSOCIATES CORP | 869178 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 49487 | 1470754 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| GOLDMAN SACHS GROUP INC | 886982 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7293 | 216748 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SIGNATUREFD, LLC | 1456048 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 600 | 17832 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| Integrated Wealth Concepts LLC | 1737109 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 624 | 18545 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Walleye Capital LLC | 1758720 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 33500 | 995620 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| Advisory Services Network, LLC | 1573876 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 21728 | 645756 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| US BANCORP \DE\ | 36104 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 35 | 1040 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| SIMPLEX TRADING, LLC | 1488542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11472 | 340947 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| McGuire Investment Group, LLC | 1756959 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 6928 | 205900 | — | — | — | Jul 27, 2026 | SEC_13F_DATASET |
| HSBC HOLDINGS PLC | 873630 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8453 | 248772 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 1705339 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 185053 | 5499775 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WELLS FARGO & COMPANY/MN | 72971 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14493 | 192032 | — | — | — | Jul 8, 2026 | SEC_13F_DATASET |
| Goldman Sachs Group Inc. | 886982 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 47320 | 7003000 | — | — | — | May 15, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2232 | 29574000 | — | — | — | May 13, 2026 | SEC_13F_HR |
| Citigroup Inc. | 831001 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7137 | 94565000 | — | — | — | May 11, 2026 | SEC_13F_HR |
| Mirae Asset Global Investments Co., Ltd. | 1569395 | Tue Mar 31 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5846 | 77460 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Citigroup Inc. | 831001 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 15613 | 341612000 | — | — | — | Feb 13, 2026 | SEC_13F_HR |
| Blackrock, Inc. | 2012383 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 613 | 13412000 | — | — | — | Feb 12, 2026 | SEC_13F_HR |
| Basecamp Wealth Advisors LLC | 2115254 | Wed Dec 31 2025 00:00:00 GMT+0000 (Coordinated Universal Time) | 38 | 831 | — | — | — | Jun 24, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.