Horizon Quantum Holdings Ltd. is pre-IPO, so no insider Form 4 transactions have been filed yet. Once insiders begin reporting trades after the offering, they will appear on this page automatically.
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Updated Jul 16, 2026 · Last SEC filing 2026-03-25
Horizon Quantum Holdings Ltd. (HQ) — no SEC Form 4 insider filings recorded in the last 90 days. InsiderAlpha tracks every HQ SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0002088256 |
|---|
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| You Harry L. | Director | A — Grant or award | 1.16M | — | — | SEC | |
| Fitzsimons Joseph Francis | Chief Executive Officer | A — Grant or award | 19.74M | — | — | SEC | |
| Lambert Danielle | Director | P — Open-market purchase | 84.6K | $11.82 | $1000K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Horizon Quantum Holdings Ltd. (HQ). Updated in real time as new filings are submitted to the SEC.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in HQ insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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