INSIDER
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Data sources

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

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 41h ago
HOUSE PTR1h ago
SEC 13F1h ago
ROBINHOOD CHAIN1h ago
Corporate insider
HR

Horn David R.

PRESIDENT & CFOCIK 0001834217

EDGAR filingsOpen in network
Disclosed transactions5
Buys / sells1 / 2
Max Insider Score56
Connections2with evidence

Disclosed transactions

ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
17
HR
Horn David R.PRESIDENT & CFO
SEERSeer, Inc.
Open-market sale
SELL$15K
7,309 sh
Aug 18, 2026Aug 19, 2026
traded Aug 18, 2026
+1dSEC FORM 4

Evidence

Verified connections

  • Insider ofevidence
    EDAP TMS SADirector · Aug 17, 2026
  • Insider ofevidence
    Seer, Inc.PRESIDENT & CFO · Nov 21, 2025
56
HR
Horn David R.Director
EDAPEDAP TMS SA
Open-market purchase
BUY
$48K
10.0K sh
Aug 14, 2026
Aug 17, 2026
traded Aug 14, 2026
+3d
SEC FORM 4

Evidence

9
HR
Horn David R.PRESIDENT & CFO
SEERSeer, Inc.
Grant or award
A—
79.0K sh
Feb 3, 2026Feb 5, 2026
traded Feb 3, 2026
+2dSEC FORM 4

Evidence

5
HR
Horn David R.PRESIDENT & CFO
SEERSeer, Inc.
Grant or award
A—
119.0K sh
Feb 3, 2026Feb 5, 2026
traded Feb 3, 2026
+2dSEC FORM 4

Evidence

21
HR
Horn David R.PRESIDENT & CFO
SEERSeer, Inc.
Open-market sale
SELL$13K
6,797 sh
Nov 19, 2025Nov 21, 2025
traded Nov 19, 2025
+2dSEC FORM 4

Evidence