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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

CNX

Superinvestors

Institutional investors holding CNX

Consensus →
InvestorFundWeightSharesValueQuarter
Mason HawkinsLongleaf Partners – Southeastern Asset Management7.61%4,014,111$154.7M2026Q1
David EinhornGreenlight Capital0.25%216,165$3.6M2022Q4
Bill MillerMiller Value Partners0.01%30,345$161K2020Q1
First Eagle Investment ManagementFirst Eagle Investment Management0.00%2,737$55K2023Q4

Congressional Activity

Congressional data coming soon

Insider Activity

10

Total trades

$2.3M

Volume

7

Buys

2

Sells

Last trade: May 7, 2026

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.