Horizon Quantum Holdings Ltd. (HQ)
Latest HQ Insider Trades
Danielle Lambert - DirectorOpen-market purchase$1.00M- Si-Hui Tan - OfficerGrant or award500,000 sh
Greg Gould - Officer
About Horizon Quantum Holdings Ltd. (HQ)
Horizon Quantum Holdings Ltd is building software infrastructure to make quantum computers accessible to commercial enterprises and hardware providers. By bridging the gap between hardware and applications, the company seeks to equip developers, researchers, and enterprises with the quantum software infrastructure needed to solve real-world problems. The company is developing tools that can automatically accelerate code written for conventional computers on quantum computers.
- 44
- 2026
- XNAS
90-Day SEC Filing Activity
No Form 4 activity for HQ in the last 90 days.
HQ Insider Transactions (Form 4)
65 Form 4 filings on record, the earliest from Mar 20, 2026, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Danielle Lambert - Director | Open-market purchase | Class A Ordinary Shares |
HQ Insider Trading - FAQ
What is the latest insider trade for HQ?
Horizon Quantum Holdings Ltd. (HQ) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-03-25. The full record for HQ runs to 5 Form 4 filings, the earliest from 2026-03-20. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying HQ stock?
No insider purchases of HQ were filed in the last 90 days. 1 purchase is on record for this company.
How many insiders are selling HQ stock?
No insider sales of HQ were filed in the last 90 days.
Where can I see HQ SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page tracks HQ Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow HQ insider buys?
Create a free InsiderAlpha account and press Watch on this page to add HQ to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Companies with Insider Activity
Recent Insider Filings
5Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
- - Danielle Lambert view on EDGAR
- - Si-Hui Tan view on EDGAR
- - Greg Gould view on EDGAR
- - Joseph Francis Fitzsimons view on EDGAR
- - Harry L. You view on EDGAR
Learn More
- What is SEC Form 4?
- The filing insiders must submit within two business days of a trade, and how to read its transaction codes.
- Insider activity by sector
- Where buying and selling is concentrated across the eleven GICS sectors.
- Every recent Form 4
- The full market-wide feed, updated as filings arrive from SEC EDGAR.
Track HQ insider activity as it files
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
