INSIDER
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Data sources

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

Robinhood Chain…
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
OverviewFollow the MoneyDaily BriefLiveCongressDirectoryCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
HM
Corporate insider

Howell Stephen Mitchell Jr.

COOCIK 0002025334

EDGAR filingsOpen in network
Disclosed transactions5
Buys / sells0 / 0
Max Insider Score21
Connections with evidence1

Disclosed transactions

ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
12
HM
Howell Stephen Mitchell Jr.COO
RIOTRiot Platforms, Inc.
Gift
G—
21.2K sh
Aug 12, 2026Aug 14, 2026
traded Aug 12, 2026
+2dSEC FORM 4

Evidence

Verified connections

  • Insider ofevidence
    Riot Platforms, Inc.COO · Jan 5, 2026
21
HM
Howell Stephen Mitchell Jr.COO
RIOTRiot Platforms, Inc.
Tax withholding
F
$526K
22.0K sh
Jul 1, 2026
Jul 6, 2026
traded Jul 1, 2026
+5d
SEC FORM 4

Evidence

15
HM
Howell Stephen Mitchell Jr.COO
RIOTRiot Platforms, Inc.
Tax withholding
F$374K
29.5K sh
Jan 1, 2026Jan 5, 2026
traded Jan 1, 2026
+4dSEC FORM 4

Evidence

13
HM
Howell Stephen Mitchell Jr.COO
RIOTRiot Platforms, Inc.
Grant or award
A—
197.3K sh
Jan 1, 2026Jan 5, 2026
traded Jan 1, 2026
+4dSEC FORM 4

Evidence

17
HM
Howell Stephen Mitchell Jr.COO
RIOTRiot Platforms, Inc.
Grant or award
A—
394.6K sh
Jan 1, 2026Jan 5, 2026
traded Jan 1, 2026
+4dSEC FORM 4

Evidence

Data sources
SEC FORM 456m ago
HOUSE PTR56m ago
SEC 13F55m ago
ROBINHOOD CHAIN55m ago