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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $2.14M in total
- 7
- 13F holdersQ2 2026, +9 vs. previous quarter
- 64
- 13F valueReported value at the end of Q2 2026
- $360.6M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding ARQQ, Q2 2026
No superinvestor reported holding ARQQ at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Arqit Quantum Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 13, 2026 (view filing)4:05 PM ET | Jul 9-10 | 4 days | Lefebvre d'Ovidio ManfrediDirector | SSale | −412 | $1.19 | −$490.28 | –14.1K after | Derivative2 lots |
| Jul 9, 2026 (view filing)4:05 PM ET | Jul 7-8 | 2 days | Lefebvre d'Ovidio ManfrediDirector | SSale | −150 | $1.34 | −$200.8 | –14.5K after | Derivative2 lots |
| Jul 7, 2026 (view filing)4:26 PM ET | Jul 2-6 | 5 days | Lefebvre d'Ovidio ManfrediDirector | SSale | −133 | $1.25 | −$166.8 | –14.7K after | Derivative2 lots |
| Jul 6, 2026 (view filing)5:46 PM ET | Jul 2 | 4 days | Willcocks PatrickGeneral Counsel | SSale | −2.01K | $25.20 | −$50.6K | −17.5%9.46K after | |
| Jul 6, 2026 (view filing)5:18 PM ET | Jul 2 | 4 days | Ritchie GarthDirector | SSale | −439 | $25.20 | −$11.1K | −0.4%104.6K after | |
| Jul 6, 2026 (view filing)5:13 PM ET | Jul 2 | 4 days | Leaver AndrewChief Executive Officer | SSale | −9.89K | $25.20 | −$249.3K | −16.1%51.5K after | |
| Jul 6, 2026 (view filing)4:11 PM ET | Jul 2 | 4 days | Wilder Ben SimonChief Operating Officer | SSale | −769 | $25.20 | −$19.4K | −17.7%3.58K after | |
| Jul 6, 2026 (view filing)3:24 PM ET | Jul 2 | 4 days | Feenan PaulChief Revenue Officer | SSale | −1.83K | $25.20 | −$46.2K | −8.7%19.4K after | |
| Jul 2, 2026 (view filing)4:51 PM ET | Jun 30-Jul 1 | 2 days | Lefebvre d'Ovidio ManfrediDirector | SSale | −54.4K | $30.17 | −$1.64M | −1.2%4.34M after | 2 lots |
| Jul 2, 2026 (view filing)4:51 PM ET | Jun 30-Jul 1 | 2 days | Lefebvre d'Ovidio ManfrediDirector | SSale | −195 | $1.56 | −$303.8 | –14.8K after | Derivative2 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Arqit Quantum Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Penserra Capital Management LLC | 5,081,219 | $151.0M | 1.16% | +3,628,908+249.9% | Added |
| Defiance ETFs, LLC | 5,099,023 | $147.1M | 2.05% | +3,646,712+251.1% | Added |
| UBS Group AG | 522,874 | $15.5M | 0.00% | +437,439+512.0% | Added |
| Legal & General Group Plc | 275,939 | $8.15M | 0.00% | +223,307+424.3% | Added |
| National Bank of Canada | 212,000 | $6.30M | 0.01% | +210,907+19,296.2% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 188,182 | $5.59M | 0.01% | −136,127−42.0% | Reduced |
| Kessler Investment Group, LLC | 153,105 | $4.55M | 1.94% | −4,464−2.8% | Reduced |
| Bank of New York Mellon Corp | 99,146 | $2.95M | 0.00% | +87,234+732.3% | Added |
| Raymond James Financial Inc | 95,250 | $2.83M | 0.00% | +31,413+49.2% | Added |
| Millennium Management LLC | 78,717 | $2.34M | 0.00% | +24,691+45.7% | Added |