Which company’s Class A shares trade under BRK.A and are associated with Warren Buffett?

Berkshire Hathaway’s Class A shares trade under BRK.A and are associated with Warren Buffett.

Berkshire Hathaway is a diversified holding company led for decades by investor Warren Buffett. Its businesses include insurance operations, rail transportation through BNSF, utilities and energy, manufacturing, retail, and a large portfolio of publicly traded investments.

BRK.A is famous for having one of the highest prices per individual share in the stock market. Berkshire also created Class B shares, which trade under BRK.B and were introduced in 1996 at a much lower price to make ownership more accessible. Class A shares can be converted into Class B shares, but not the reverse.

The company began as a textile manufacturer, and Buffett’s investment partnership acquired control in the 1960s. Although Berkshire is often discussed alongside banks and asset managers, its insurance operations and wholly owned subsidiaries make it a broader conglomerate. Its market capitalization therefore represents many different businesses rather than one product line.