DH
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Insider TradesSuperinvestorsGrand Portfolio
DH
DataHeimdall

Financial transparency data from public SEC filings.

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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

GMPRB

Superinvestors

Institutional investors holding GMPRB

Consensus →
InvestorFundWeightSharesValueQuarter
David TepperAppaloosa Management3.13%742,803$23.9M2011Q4
Bill MillerMiller Value Partners1.97%521,491$19.4M2012Q3
Meridian / ArrowMarkMeridian Contrarian Fund0.06%5,000$271K2010Q4
Christopher DavisDavis Selected Advisers0.00%21,100$1.0M2011Q2

Congressional Activity

Congressional data coming soon

Insider Activity

No insider trades in the last 90 days

Insider Tradeslast 90 days

No insider trades in the last 90 days.

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.