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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 BriefLiveCongressDirectoryCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodology
01Overview02Follow the Money03Daily Brief04Live05Congress06Directory07Corporate Insiders08Government Money09Political Influence10Institutions11Washington Network12Follow the Power13Disclosure Clock14AI Investigator15Watchlist
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 410m ago
HOUSE PTR10m ago
SEC 13F10m ago
ROBINHOOD CHAIN10m ago
SEC FORM 4/Open-market purchaseVerified data

Vaughn Robert C bought DMLP

Director · DORCHESTER MINERALS, L.P. · Common Units

Side
BUY
Value
$91K
Shares
4,263
Price
$21.41
Executed
Nov 25, 2025
Disclosed
Nov 28, 2025
Disclosure timeline3 days from execution to publication · legal deadline 2 business days
Nov 25 executedNov 28, 2025 disclosed

DMLP · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
51/ 100 · NOTABLE
Methodology →
  • Transaction type+20 / 20

    Open-market purchase

  • Relative size+12 / 25

    $91K reported value · 27.1% of prior position

  • Filing timing+6 / 15

    Disclosed 3 business days after execution (deadline: 2)

  • Historical behavior+8 / 15

    First recorded trade by this actor in this security

  • Frequency & clustering+5 / 15

    1 other actor traded the same direction within 14 days

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · DMLP

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    32
    August PflugerRSelf
    DMLPDORCHESTER MINERALS, L.P.
    Purchase
    		BUY$15K – $50KMar 13, 2026Apr 15, 2026
    traded Mar 13, 2026
    		+33dHOUSE PTR

    Evidence

    43
    MA
    Moriyama Leslie AChief Financial Officer
    DMLPDORCHESTER MINERALS, L.P.
    Open-market purchase
    		BUY$65K
    3,041 sh
    		Nov 25, 2025Nov 28, 2025
    traded Nov 25, 2025
    		+3dSEC FORM 4

    Evidence

    40
    VC
    Vaughn Robert CDirector
    DMLPDORCHESTER MINERALS, L.P.
    Open-market purchase
    		BUY$7,529
    352 sh
    		Nov 25, 2025Nov 28, 2025
    traded Nov 25, 2025
    		+3dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0001437749-25-036481
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Nov 25, 2025
    Published
    Nov 28, 2025
    Ingested by INSIDER
    Nov 5, 04:30 UTC
    Last re-read
    Nov 5, 04:30 UTC

    Extracted facts

    Filer
    Vaughn Robert C
    Role
    Director
    Transaction
    Open-market purchaseAs filed: “P”
    Asset
    DORCHESTER MINERALS, L.P.
    Ticker
    DMLP
    Shares
    4,263
    Price per share
    $21.41
    Value
    $91,271
    Execution date (reported)
    Nov 25, 2025
    Owned after transaction
    20.0K shares
    Days from execution to publication
    3

    Calculation

    Value = shares × reported price per share

    • Shares: 4,263
    • Price: $21.41

    = $91,271

    What this establishes

    Vaughn Robert C filed this Form 4 reporting a open-market purchase of DMLP on Nov 25, 2025. It became public on Nov 28, 2025. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    Director
    Vaughn Robert Ccik:0001203847
    Issuer
    DORCHESTER MINERALS, L.P.cik:0001172358

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.