Plaumann Mark Lawrence

US insider· US
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  • ACQUIREDT+30

    Mammoth Energy Svcs Inc · NASDAQ

    +5,000 sh · $15.0K

    Filed 17 Sept 2026SEC Form 4view source
  • REDUCEDStale

    Diamondback Energy Inc · NASDAQ

    −1,000 sh · $210.6K

    Filed 24 Aug 2026SEC Form 4view source