INSIDER
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Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

Robinhood Chain…
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersPlanned Sales & StakesGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersPlanned Sales & StakesGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersPlanned Sales & StakesGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
Data sources
SEC FORM 41h ago
HOUSE PTR1h ago
SEC 13F1h ago
ROBINHOOD CHAIN1h ago
Public company

Horizon Quantum Holdings Ltd.

HQCIK 0002088256

EDGAR filingsOpen in network
Price$11.44
1 year+16.1%
Disclosed transactions5
Buys / sells0 / 0
Max Insider Score24
Connections with evidence3

HQ · disclosed activity on price

Disclosed transactions

ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
12
YL
You Harry L.Director, 10% Owner
HQHorizon Quantum Holdings Ltd.
Other acquisition or disposition
J—
1.16M sh
Nov 3, 2026Nov 5, 2026

Verified connections

  • In industryevidence
    Telecommunications & technologySEC SIC 7371 · Services-Computer Programming Services · Nov 4, 2026
  • ← Holds over 5% ofevidence
    You Harry L.7.4% of class · Schedule 13D · Nov 4, 2026
  • ← Insider ofevidence
    You Harry L.Director, 10% Owner · Mar 20, 2026
traded Nov 3, 2026
+2d
SEC FORM 4

Evidence

24
YL
You Harry L.Director, 10% Owner
HQHorizon Quantum Holdings Ltd.
Other acquisition or disposition
J—
1.16M sh
Nov 3, 2026Nov 5, 2026
traded Nov 3, 2026
+2dSEC FORM 4

Evidence

12
YL
You Harry L.Director, 10% Owner
HQHorizon Quantum Holdings Ltd.
Other acquisition or disposition
J—
1.44M sh
Nov 3, 2026Nov 5, 2026
traded Nov 3, 2026
+2dSEC FORM 4

Evidence

9
YL
You Harry L.Director, 10% Owner
HQHorizon Quantum Holdings Ltd.
Grant or award
A—
1.16M sh
Mar 19, 2026Mar 20, 2026
traded Mar 19, 2026
+1dSEC FORM 4

Evidence

9
YL
You Harry L.Director, 10% Owner
HQHorizon Quantum Holdings Ltd.
Grant or award
A—
2.88M sh
Mar 19, 2026Mar 20, 2026
traded Mar 19, 2026
+1dSEC FORM 4

Evidence

Planned sales and 5% stakes

Form 144, 13D and 13G
  • HYHarry L. YouMay seek to influence the company · crossed on Nov 3, 2026 · 2.66M shares7.4% of class13D amendment · filed Nov 5, 2026