Arqit Quantum Inc.
ARQQ- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- SEC CIK
- 0001859690
In the last 90 days, Arqit Quantum Inc. insiders filed 0 open-market purchases and 7 sales; 64 institutions reported holding it in 13F filings for Q2 2026, worth $360.6M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Arqit Quantum Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 60
- +5 vs. Q3 2025
- Shares held
- 3.76M
- +1.91M (+103.8%) vs. Q3 2025
- Total value
- $82.3M
- +$10.9M (+15.2%) vs. Q3 2025
- New holders
- 22
- 15 more added
- Sold out
- 17
- 9 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ARQQ on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 64 | $360.6M |
| Q1 2026 | 57 | $53.3M |
| Q4 2025 | 60 | $82.3M |
| Q3 2025 | 57 | $71.8M |
| Q2 2025 | 42 | $44.6M |
| Q1 2025 | 31 | $6.88M |
| Q4 2024 | 30 | $12.3M |
| Q3 2024 | 13 | $257.0K |
| Q2 2024 | 25 | $925.5K |
| Q1 2024 | 28 | $6.88M |
| Q4 2023 | 32 | $3.37M |
| Q3 2023 | 34 | $10.7M |
| Q2 2023 | 33 | $17.8M |
| Q1 2023 | 44 | $22.1M |
| Q4 2022 | 38 | $64.1M |
| Q3 2022 | 24 | $20.7M |
| Q2 2022 | 32 | $16.2M |
| Q1 2022 | 34 | $50.4M |
| Q4 2021 | 24 | $24.1M |
| Q3 2021 | 17 | $16.5M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Arqit Quantum Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Defiance ETFs, LLC | 1,378,655 | $30.2M | 0.99% | +1,378,655 | New |
| Penserra Capital Management LLC | 1,378,655 | $30.2M | 0.36% | +357,407+35.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 301,713 | $6.60M | 0.01% | +301,713 | New |
| UBS Group AG | 147,397 | $3.23M | 0.00% | +70,811+92.5% | Added |
| Legal & General Group Plc | 66,232 | $1.45M | 0.00% | −9,539−12.6% | Reduced |
| Jane Street Group, LLC | 65,775 | $1.44M | 0.00% | +36,471+124.5% | Added |
| Raymond James Financial Inc | 63,253 | $1.38M | 0.00% | −21,460−25.3% | Reduced |
| Kessler Investment Group, LLC | 47,849 | $1.05M | 0.44% | +47,849 | New |
| Banque Pictet & Cie SA | 36,000 | $787.7K | 0.01% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 31,079 | $680.0K | 0.02% | −9,170−22.8% | Reduced |
| National Bank of Canada | 30,334 | $663.7K | 0.00% | +29,628+4,196.6% | Added |
| Susquehanna International Group, LLP | 20,033 | $438.3K | 0.00% | −172,785−89.6% | Reduced |
| Advisory Services Network, LLC | 19,944 | $436.4K | 0.01% | 00.0% | Unchanged |
| Bank of America Corp | 19,504 | $426.7K | 0.00% | +19,214+6,625.5% | Added |
| Bank of New York Mellon Corp | 18,976 | $415.2K | 0.00% | +18,976 | New |
| Citigroup Inc | 18,859 | $412.6K | 0.00% | +9,342+98.2% | Added |
| Group One Trading, L.P. | 15,799 | $345.7K | 0.01% | +10,562+201.7% | Added |
| Van Eck Associates Corp | 13,193 | $289.0K | 0.00% | −13,422−50.4% | Reduced |
| Veracity Capital LLC | 12,207 | $267.1K | 0.08% | −813−6.2% | Reduced |
| Stonehage Fleming Financial Services Holdings Ltd | 11,528 | $252.2K | 0.01% | +11,528 | New |
| Wells Fargo & Company | 10,195 | $223.1K | 0.00% | +7,677+304.9% | Added |
| Morgan Stanley | 10,045 | $219.8K | 0.00% | +1,981+24.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,038 | $154.0K | 0.00% | −7,435−51.4% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 5,019 | $109.8K | 0.00% | +5,019 | New |
| Leonteq Securities AG | 4,500 | $98.5K | 0.01% | +875+24.1% | Added |
| Flagship Harbor Advisors, LLC | 3,439 | $75.2K | 0.00% | +3,439 | New |
| Jones Financial Companies LLLP | 3,267 | $71.5K | 0.00% | +1,061+48.1% | Added |
| Royal Bank of Canada | 3,004 | $66.0K | 0.00% | −1,660−35.6% | Reduced |
| Advisor Group Holdings, Inc. | 3,004 | $65.7K | 0.00% | +1,132+60.5% | Added |
| Kestra Advisory Services, LLC | 1,813 | $39.7K | 0.00% | +1,813 | New |
| BNP Paribas Arbitrage, SA | 1,733 | $37.9K | 0.00% | +1,733 | New |
| EFG International AG | 1,000 | $21.9K | 0.00% | +1,000 | New |
| Albion Financial Group | 1,000 | $21.9K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 1,000 | $21.9K | 0.00% | 00.0% | Unchanged |
| Noble Wealth Management PBC | 880 | $19.3K | 0.01% | +180+25.7% | Added |
| BlackRock, Inc. | 613 | $13.4K | 0.00% | −1,388−69.4% | Reduced |
| Signaturefd, LLC | 600 | $13.1K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 539 | $11.8K | 0.00% | +539 | New |
| Tower Research Capital LLC (TRC) | 533 | $11.7K | 0.00% | +386+262.6% | Added |
| Wolverine Asset Management LLC | 489 | $10.7K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 376 | $8.23K | 0.00% | +376 | New |
| Sunbelt Securities, Inc. | 250 | $5.47K | 0.00% | 00.0% | Unchanged |
| Cape Investment Advisory, Inc. | 245 | $5.36K | 0.00% | +245 | New |
| Harbour Investments, Inc. | 200 | $4.38K | 0.00% | +200 | New |
| MAI Capital Management | 200 | $4.38K | 0.00% | +200 | New |
| Heritage Wealth Advisors | 130 | $2.84K | 0.00% | +20+18.2% | Added |
| US Bancorp | 100 | $2.19K | 0.00% | 00.0% | Unchanged |
| West Financial Advisors, LLC | 100 | $2.19K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 66 | $1.45K | 0.00% | 00.0% | Unchanged |
| Strengthening Families & Communities, LLC | 50 | $1.09K | 0.00% | +50 | New |
| Cornerstone Financial Management LLC | 39 | $853 | 0.00% | +39 | New |
| Basecamp Wealth Advisors LLC | 38 | $831 | 0.00% | +38 | New |
| GWM Advisors LLC | 30 | $656 | 0.00% | +30 | New |
| Turning Point Benefit Group, Inc. | 18 | $394 | 0.00% | +18 | New |
| Parkside Financial Bank & Trust | 16 | $351 | 0.00% | +16 | New |
| CoreCap Advisors, LLC | 16 | $350 | 0.00% | 00.0% | Unchanged |
| MCF Advisors LLC | 10 | $219 | 0.00% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 2 | $44 | 0.00% | +2 | New |
| Natixis | 1 | $22 | 0.00% | 00.0% | Unchanged |
| Healthcare of Ontario Pension Plan Trust Fund | 1 | $22 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −34,033−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −17,793−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −16,763−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −15,161−100.0% | Sold out |
| Cookson Peirce & Co Inc | 0 | $0 | 0.00% | −15,000−100.0% | Sold out |
| EAM Investors, LLC | 0 | $0 | 0.00% | −14,122−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −13,002−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −9,530−100.0% | Sold out |
| Geode Capital Management, LLC | 0 | $0 | 0.00% | −7,246−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −6,306−100.0% | Sold out |
| Cetera Investment Advisers | 0 | $0 | 0.00% | −6,156−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −6,112−100.0% | Sold out |
| Biltmore Family Office, LLC | 0 | $0 | 0.00% | −5,777−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Ameritas Advisory Services, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −69−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Wolverine Trading, LLC | – | – | – | – | Not filed |
| Maso Capital Partners Ltd | – | – | – | – | Not filed |