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Insider TradesSuperinvestorsGrand Portfolio
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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

GTI

Superinvestors

Institutional investors holding GTI

Consensus →
InvestorFundWeightSharesValueQuarter
David EinhornGreenlight Capital0.42%2,000,000$8.6M2005Q2
Mason HawkinsLongleaf Partners – Southeastern Asset Management0.28%4,928,676$35.7M2002Q3
Meridian / ArrowMarkMeridian Contrarian Fund0.13%420,800$4.4M2014Q2

Congressional Activity

Congressional data coming soon

Insider Activity

3

Total trades

$2.5M

Volume

0

Buys

3

Sells

Last trade: Dec 26, 2024

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.