ARQQ: Arqit Quantum Inc. insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 27 sales totaling $369K in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-13 | Leaver Andrew | CEO | $42K | |
| 2026-10-06 | Wilder Ben Simon | Officer | $5K | |
| 2026-10-06 | Nilan Nicholas William | Officer | $12K | |
| 2026-10-06 | Ritchie Garth | Director | $3K | |
| 2026-10-06 | Willcocks Patrick | Officer | $13K | |
| 2026-10-06 | Feenan Paul | Officer | $12K | |
| 2026-10-06 | Leaver Andrew | CEO | $58K | |
| 2026-10-05 | Leaver Andrew | CEO | $60K | |
| 2026-10-05 | Feenan Paul | Officer | $13K | |
| 2026-10-05 | Nilan Nicholas William | Officer | $12K | |
| 2026-10-05 | Ritchie Garth | Director | $3K | |
| 2026-10-05 | Wilder Ben Simon | Officer | $6K | |
| 2026-10-05 | Willcocks Patrick | Officer | $14K | |
| 2026-10-02 | Willcocks Patrick | Officer | $4K | |
| 2026-10-02 | Willcocks Patrick | Officer | $2K | |
| 2026-10-02 | Willcocks Patrick | Officer | $8K | |
| 2026-10-02 | Wilder Ben Simon | Officer | $2K | |
| 2026-10-02 | Wilder Ben Simon | Officer | $3K | |
| 2026-10-02 | Ritchie Garth | Director | $783 | |
| 2026-10-02 | Ritchie Garth | Director | $220 | |
| 2026-10-02 | Ritchie Garth | Director | $979 | |
| 2026-10-02 | Ritchie Garth | Director | $979 | |
| 2026-10-02 | Nilan Nicholas William | Officer | $12K | |
| 2026-10-02 | Leaver Andrew | CEO | $69K | |
| 2026-10-02 | Feenan Paul | Officer | $2K | |
| 2026-10-02 | Feenan Paul | Officer | $4K | |
| 2026-10-02 | Feenan Paul | Officer | $6K |
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-09-10 | 13G amendment | Notion Capital III LP | 10.00% | SEC |
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