In instances where Berkshire Hathaway holds a 10% or greater stake in a public company, such as Bank of America in July 2024, it's required to file Form 4 with the SEC within two business days.

Specifically, could Berkshire Hathaway double your investment by 2030, even without the legendary billionaire investor at the helm?

Berkshire Hathaway (BRK.A -0.63%) (BRK.B -1.29%) is the largest financial company by market cap at more than $1 trillion, according to research from The Motley Fool.