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

BLK

Superinvestors

Institutional investors holding BLK

Consensus →
InvestorFundWeightSharesValueQuarter
William Von MuefflingCantillon Capital Management2.98%514,252$550.4M2025Q4
Kenneth FisherFisher Asset Management0.67%1,824,359$2.0B2025Q4
Hillman Capital ManagementHillman Value Fund0.22%333$356K2025Q4
Bill NygrenOakmark Select Fund – Harris Associates0.07%54,409$58.2M2025Q4
Mairs & PowerMairs & Power Growth Fund0.00%190$203K2025Q4
Dodge & CoxDodge & Cox0.00%711$761K2025Q4

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.