BERKSHIRE HATHAWAY INC-CL B (BRK-B) Stock Institutional Trading Activity


BERKSHIRE HATHAWAY INC-CL B (BRK-B) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Bill & Melinda Gates Foundation Trust, H&H International Investment, Renaissance Technologies LLC, Aquamarine Zurich AG, and Yacktman Asset Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Yacktman Asset ManagementSell-7,323313,033$157,346,037
Q4 2025Eagle Capital ManagementSell-8111,125$5,592
Q4 2025Aquamarine Zurich AGSell-43,00097,600$49,059
Q4 2025Matrix Private Capital GroupBuy581,959$984,691
Q4 2025Matrix Advisors Value FundSell-611,595$5,828,227
Q4 2025Akre Capital ManagementSell-2,08311,902$5,982,540
Q4 2025Mairs & Power Growth FundSell-52224,857$12,494,371
Q4 2025Fairholme Capital ManagementSell-42548,012$24,133,232
Q4 2025Eagle Capital ManagementSell-5350,820$25,544,673
Q4 2025Semper Augustus Investments GroupSell-1,028249,211$125,265,909
Q4 2025Renaissance Technologies LLCBuy249,133252,188$126,757,442
Q4 2025Giverny CapitalSell-4,660505,984$254,332,858
Q4 2025H&H International InvestmentBuy1,984,8967,176,196$3,607,114,919
Q4 2025Bill & Melinda Gates Foundation TrustSell-2,358,46019,406,764$9,754,809,925
Q4 2025Tweedy, Browne Co All Funds (US)Sell-2,03297,081$48,797,765
Q4 2025Cullen Value FundBuy4,027100,745$50,282,131
Q3 2025Torray FundSell-12,65024,624$12,379,470
Q3 2025Yacktman Asset ManagementSell-6,511320,356$161,055,775
Q3 2025Lountzis Asset ManagementSell-270135,098$67,919,169
Q3 2025Dodge & Cox Stock FundSell-1,30011,440$5,751,346
Q3 2025Sound Shore ManagementBuy61,886179,234$90,108,101
Q3 2025Gardner Russo & QuinnBuy6,8281,161,394$583,879,220
Q3 2025Olstein Capital ManagementBuy3,40011,000$5,530
Q3 2025Eagle Capital ManagementSell-14811,206$5,634
Q3 2025Matrix Private Capital GroupBuy5071,901$955,709
Q3 2025Renaissance Technologies LLCSell-2133,055$1,537,814
Q3 2025Matrix Advisors Value FundBuy1011,601$5,832,287
Q3 2025First Eagle U.S. ValueSell-3,56615,310$7,697,035
Q3 2025Mairs & Power Growth FundSell-71325,379$12,759,038
Q3 2025Muhlenkamp & CoBuy2938,380$19,295,362

Frequently asked questions about BRK-B activity

  • Which institutional owners are buying BRK-B?

    Institutional owners buying BRK-B include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in BRK-B activity?

    "Buy" means an investor increased their reported position in BRK-B compared to the prior reporting period. This reflects growing exposure to BERKSHIRE HATHAWAY INC-CL B (BRK-B) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in BRK-B increasing?

    Institutional interest in BRK-B can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.