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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

LUMNXXXX

Superinvestors

Institutional investors holding LUMNXXXX

Consensus →
InvestorFundWeightSharesValueQuarter
Mason HawkinsLongleaf Partners – Southeastern Asset Management14.18%65,104,368$634.8M2020Q4
Viking Global InvestorsViking Global Investors7.88%4,095,400$117.7M2001Q1
Michael BurryScion Asset Management4.99%1,150,000$11.2M2020Q4
David KatzMatrix Asset Advisors1.62%239,500$8.6M2000Q4
Valley Forge Capital ManagementValley Forge Capital Management1.36%253,830$7.1M2009Q1
William Von MuefflingCantillon Capital Management0.10%30,100$982K2003Q4
Bill NygrenOakmark Select Fund – Harris Associates0.03%38,770$1.2M2004Q2
First Eagle Investment ManagementFirst Eagle Investment Management0.03%124,800$5.8M2010Q4
Bill MillerMiller Value Partners0.00%10,000$98K2020Q4
Kenneth FisherFisher Asset Management0.00%13,602$180K2019Q4

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.