Arqit Quantum Inc. Ordinary Shares (ARQQ)
Arqit Quantum Inc. Ordinary Shares (ARQQ) is listed on Nasdaq, where it has traded since September 7, 2021.
- Listed On
- Nasdaq
- Listed Since
- September 7, 2021
- Employees
- 91
- Market Cap
- $321M
About Arqit Quantum Inc. Ordinary Shares
Arqit Quantum Inc is a cybersecurity company that has pioneered a symmetric key agreement technology that makes the communications links of any networked device or data at rest secure against current and future forms of cyber attack - even an attack from a quantum computer. The company delivers its symmetric key agreement technology via its product SKA-Platform. The firm operates in one segment, that is, the provision of cybersecurity services. The company operates and generates its revenue from UK.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 61 institutions reported holding ARQQ, with 12.3 million shares worth $360.1 million in aggregate. The largest reported holder was Defiance Etfs, with 5.1 million shares worth $147.1 million. Of the 5 largest holders listed below, all 5 added shares during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Defiance Etfs | 5,099,023 | $147M | Added 251.1% |
| Penserra Capital Management | 5,081,219 | $151M | Added 249.87% |
| UBS Group | 522,874 | $16M | Added 512.01% |
| Legal & General Group | 275,939 | $8M | Added 424.28% |
| National Bank of Canada /FI | 212,000 | $6M | Added 19296.16% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is ARQQ?
Arqit Quantum Inc. Ordinary Shares (ARQQ) is listed on Nasdaq, where it has traded since September 7, 2021.
Who are the largest institutional holders of ARQQ?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of ARQQ were Defiance Etfs, Penserra Capital Management and UBS Group.
How many institutions own ARQQ?
61 institutions reported a position in ARQQ for the quarter ended June 30, 2026, worth $360.1 million in total.
Did institutions buy or sell ARQQ last quarter?
Of the 5 largest reported holders, all 5 added shares during the quarter. Every reported holder and its change is on the SentiSense ownership page for ARQQ.
Every reported institutional holder, plus insider and congressional trades in ARQQ, on SentiSense.