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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

NFB

Superinvestors

Institutional investors holding NFB

Consensus →
InvestorFundWeightSharesValueQuarter
William Von MuefflingCantillon Capital Management0.46%110,800$4.5M2003Q4
FPA / Steven RomickFPA Crescent Fund – First Pacific Advisors0.20%326,500$9.8M2006Q2
Ruane CunniffSequoia Fund0.08%351,352$10.1M2006Q3
Bill NygrenOakmark Select Fund – Harris Associates0.01%13,500$407K2006Q2

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.