INSIDER
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ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
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
Data sources
SEC FORM 459m ago
HOUSE PTR59m ago
SEC 13F59m ago
ROBINHOOD CHAIN58m ago
RE
Corporate insider

Ridloff Elena

CFO and CBOCIK 0001772518

EDGAR filingsOpen in network
Disclosed transactions4
Buys / sells0 / 0
Max Insider Score21
Connections with evidence1

Disclosed transactions

ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
9
RE
Ridloff ElenaCFO and CBO
SIONSionna Therapeutics, Inc.
Disposition to issuer
D—
165.4K sh
Sep 17, 2026Sep 18, 2026
traded Sep 17, 2026
+1dSEC FORM 4

Evidence

Verified connections

  • Insider ofevidence
    Sionna Therapeutics, Inc.CFO and CBO · Sep 18, 2026
21
RE
Ridloff ElenaCFO and CBO
SIONSionna Therapeutics, Inc.
Grant or award
A
—
47.3K sh
Sep 17, 2026
Sep 18, 2026
traded Sep 17, 2026
+1d
SEC FORM 4

Evidence

21
RE
Ridloff ElenaCFO and CBO
SIONSionna Therapeutics, Inc.
Grant or award
A—
47.3K sh
Sep 17, 2026Sep 18, 2026
traded Sep 17, 2026
+1dSEC FORM 4

Evidence

9
RE
Ridloff ElenaCFO and CBO
SIONSionna Therapeutics, Inc.
Grant or award
A—
165.4K sh
Sep 17, 2026Sep 18, 2026
traded Sep 17, 2026
+1dSEC FORM 4

Evidence