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

Ambarella Inc

AMBACIK 0001280263

EDGAR filingsOpen in network
Price$58.55
1 year-32.3%
Disclosed transactions0
Buys / sells0 / 0
Max Insider Score—
Connections with evidence2

AMBA · disclosed activity on price

Disclosed transactions

No records

No transactions recorded for this profile.

Verified connections

  • In industryevidence
    Telecommunications & technologySEC SIC 3674 · Semiconductors & Related Devices · Nov 6, 2026
  • ← Holds over 5% ofevidence
    Vanguard Portfolio Management7.04% of class · Schedule 13G · Oct 29, 2026

Planned sales and 5% stakes

Form 144, 13D and 13G
  • VMVanguard Portfolio ManagementPassive holder · crossed on Sep 30, 2026 · 3.11M shares7.04% of class13G amendment · filed Oct 30, 2026