Horizon Quantum Holdings Ltd.
HQNasdaqTechnology · Services-Computer Programming Services · U0 · SEC filings ↗ · Compare ⊕
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SEC XBRL · annualNo structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).
5%+ owners
SEC Schedule 13D / 13G · last 3 yrs- Ionq, Inc.Activist (13D)Apr 1, 2026
- Fitzsimons Joseph FrancisActivist (13D)Mar 31, 2026
- Tencent Holdings LtdPassive (13G)Mar 25, 2026
- You Harry L.Activist (13D)Mar 20, 2026
Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.
Short interest
FINRA · bi-monthly| Settlement | Shares short | Days to cover | Δ vs prior |
|---|---|---|---|
| May 15, 2026 | 313,669 | 1.7 | +9.8% |
| Apr 30, 2026 | 285,736 | 1.2 | +61.6% |
| Apr 15, 2026 | 176,848 | 1.5 | +45.7% |
| Mar 31, 2026 | 121,356 | 2.7 | +100.0% |
Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.
Recent SEC filings
All filings ↗- S-8REGISTRATION STATEMENTMay 28, 2026
- 3May 11, 2026
- 6-KREPORT OF FOREIGN PRIVATE ISSUERMay 5, 2026
- 6-KREPORT OF FOREIGN PRIVATE ISSUERMay 4, 2026
- 424B3PROSPECTUSApr 24, 2026
- EFFECTApr 23, 2026
- CORRESPApr 21, 2026
- AWAMENDMENT WITHDRAWALApr 21, 2026
- UPLOADApr 20, 2026
- F-1REGISTRATION STATEMENTApr 16, 2026
- 6-KREPORT OF FOREIGN PRIVATE ISSUERApr 16, 2026
- POS AMPOSE EFFECTIVE AMENDMENT NO. 1 TO FORM F-4Apr 14, 2026
- 20-FANNUAL REPORTApr 14, 2026
- 6-KREPORT OF FOREIGN PRIVATE ISSUERApr 9, 2026
- 3Apr 2, 2026