Who Owns Arqit Quantum Inc (ARQQ)? -- Institutional Holders (2026-06-30)
80 institutions reported holding $389.0M of Arqit Quantum Inc (ARQQ) in SEC 13F filings for 2026-06-30. Largest institutional holders: Penserra Capital Management LLC ($151.0M), Defiance ETFs, LLC ($147.1M), UBS Group AG ($15.5M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($9.2M), JANE STREET GROUP, LLC ($8.7M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | Penserra Capital Management LLC | $151.0M | 5.1M | Added |
| 2 | Defiance ETFs, LLC | $147.1M | 5.1M | Added |
| 3 | UBS Group AG | $15.5M | 522,974 | Added |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $9.2M | 310,500 | Added |
| 5 | JANE STREET GROUP, LLC | $8.7M | 293,200 | Added |
| 6 | Legal & General Group Plc | $8.1M | 275,939 | Added |
| 7 | NATIONAL BANK OF CANADA /FI/ | $6.3M | 212,000 | Added |
| 8 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $5.6M | 188,182 | Trimmed |
| 9 | CITADEL ADVISORS LLC | $4.9M | 164,800 | Added |
| 10 | Kessler Investment Group, LLC | $4.6M | 153,105 | Trimmed |
| 11 | Crawford Fund Management, LLC | $4.4M | 148,000 | Added |
| 12 | Bank of New York Mellon Corp | $2.9M | 99,146 | Added |
| 13 | RAYMOND JAMES FINANCIAL INC | $2.8M | 95,250 | Added |
| 14 | MILLENNIUM MANAGEMENT LLC | $2.3M | 78,717 | Added |
| 15 | BANK OF AMERICA CORP /DE/ | $1.6M | 54,192 | Added |
| 16 | VAN ECK ASSOCIATES CORP | $1.5M | 49,487 | Added |
| 17 | Cetera Investment Advisers | $1.1M | 38,198 | New |
| 18 | Walleye Capital LLC | $1.1M | 37,000 | New |
| 19 | BANQUE PICTET & CIE SA | $1.1M | 36,000 | Hold |
| 20 | Man Group plc | $778,961 | 26,210 | New |
| 21 | SBI Securities Co., Ltd. | $776,732 | 26,135 | Trimmed |
| 22 | Advisory Services Network, LLC | $646,023 | 21,737 | Trimmed |
| 23 | Zurcher Kantonalbank (Zurich Cantonalbank) | $632,917 | 21,296 | Added |
| 24 | WELLS FARGO & COMPANY/MN | $632,768 | 21,291 | Added |
| 25 | KKM Financial LLC | $537,779 | 31,394 | New |
Source: SEC Form 13F filings · as of 2026-06-30