Horizon Quantum Holdings Ltd. (HQ) has 5 SEC Form 4 insider filings on record in the last 90 days. Most recent filing: Sept. 16, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 16, 2026 filed Aug. 17, 2026 | Chew Qian Yi Amanda Chief Product Officer | $0 | 17,857 | 0% | No | |
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| Sept. 15, 2026 filed June 12, 2026 | Fitzsimons Catherine Michele CL and CO | $17,077 | 39,790 | +3% | No | |
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| Sept. 15, 2026 filed June 12, 2026 | Gould Greg Chief Financial Officer | $19,360 | 63,141 | +4% | No | |
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| Sept. 15, 2026 filed March 19, 2026 | Tan Si-Hui Chief Science Officer | — | +6,337 | +8% | No | |
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| Sept. 15, 2026 filed June 12, 2026 | Fitzsimons Joseph Francis Chief Executive Officer | $52,326 | 261,228 | +5% | No | |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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