Berkshire Hathaway (NYSE: BRK.A) (NYSE: BRK.B) was a struggling textiles manufacturer when Warren Buffett acquired a controlling stake in 1965, but he has grown it into a $1 trill

Warren Buffett’s Legacy at Berkshire Hathaway For over six decades, Warren Buffett has transformed Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) from a struggling textile company into a global investment powerhouse.

Berkshire owned about $286 billion of T-bills at the end of 2024 and increased its holdings to $306 billion at the end of Q1 2025. The 1-year treasury rate has decreased compared to last year and is now about 4%. The running yield on the current T-bills is about $12.2 billion.