🕵️ Horizon Quantum Holdings Ltd. ($HQ)
SEC insider & ownership activity, last 12 months · CIK 2088256 · every row links its SEC filing
Over the last 12 months insiders bought $1000K with no open-market selling against it. Lambert Danielle bought $1000K in discretionary trades (Mar). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $1000K (1 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lambert Danielle | 1 | $1000K | 0 | – | Mar 19, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Joseph Francis Fitzsimons | 38.3% | 13D | Mar 19, 2026 | filing ↗ | |
| PEAK XV Partners SEED Fund I Ltd | 20.3% | Class A | 13D | Mar 19, 2026 | filing ↗ |
| PEAK XV Partners Principals SEED Fund I Ltd | 20.3% | Class A | 13D | Mar 19, 2026 | filing ↗ |
| PEAK XV Partners SEED Management I Ltd | 20.3% | Class A | 13D | Mar 19, 2026 | filing ↗ |
| PEAK XV Partners SEED Investment | 20.3% | Class A | 13D | Mar 19, 2026 | filing ↗ |
| IONQ, Inc. | 13.3% | 13D | Mar 19, 2026 | filing ↗ | |
| Tencent Holdings Ltd | 13.1% | 13G | Mar 25, 2026 | filing ↗ | |
| THL A12 Limited | 13.1% | 13G | Mar 25, 2026 | filing ↗ | |
| Harry L. You | 11.8% | 13D | Mar 19, 2026 | filing ↗ | |
| DMY Squared Sponsor, LLC | 11.6% | 13D | Mar 19, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
No 8-K filings in the last 12 months.