Horizon Quantum Holdings Ltd. SEC filings HQ
Horizon Quantum Holdings Ltd. has 73 filings in SEC EDGAR's recent list, going back to Oct 14, 2025. Its latest annual report, Form 20-F, was filed on Apr 14, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Nov 5, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Nov 5, 2026 | — |
| 4 | Insider transaction | Nov 5, 2026 | Nov 3, 2026 |
| 4 | Insider transaction | Oct 21, 2026 | Jun 11, 2026 |
| 4 | Insider transaction | Sep 16, 2026 | Aug 17, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Jun 12, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Jun 12, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Jun 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 3 | Initial insider ownership | Aug 10, 2026 | Jul 28, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Jul 9, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 25, 2026 | — |
| 3 | Initial insider ownership | May 11, 2026 | May 11, 2026 |
| 3 | Initial insider ownership | Apr 2, 2026 | Mar 19, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Apr 1, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 31, 2026 | — |
| 4 | Insider transaction | Mar 25, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Mar 25, 2026 | Mar 19, 2026 |
| 4 | Insider transaction | Mar 25, 2026 | Mar 19, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 25, 2026 | — |
| 4 | Insider transaction | Mar 24, 2026 | Mar 19, 2026 |
| SCHEDULE 13D | Ownership over 5% (active) | Mar 20, 2026 | — |
| 4 | Insider transaction | Mar 20, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 20, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 19, 2026 |
| 3 | Initial insider ownership | Mar 19, 2026 | Mar 19, 2026 |
Showing 29 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Computer Programming Services (SIC 7371)
- Listed as
- HQ (Nasdaq), HQWWW (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Singapore
- Headquarters
- Singapore
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2088256
- Former names
- Horizon Quantum Holdings Pte. Ltd. (until Mar 9, 2026); Rose Holdco Pte. Ltd. (until Dec 9, 2025)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.