BERKSHIRE HATHAWAY INC-CL B (BRK-B) Institutional Ownership and Insiders Activity

BERKSHIRE HATHAWAY INC-CL B (BRK-B) is widely held by institutional investors, with 30 tracked firms reporting positions valued at approximately $14.66B based on SEC Form 13F filings for the quarter ended March 31, 2026.

Bill & Melinda Gates Foundation Trust is the largest disclosed holder, reporting approximately $8.17B in BRK-B holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Bill & Melinda Gates Foundation Trust representing the majority of disclosed value.