Which company has the stock ticker BRK.A for its highest-priced listed share class?

Berkshire Hathaway has the stock ticker BRK.A for its highest-priced listed share class.

Berkshire Hathaway’s Class A shares trade under BRK.A. The company also issues Class B shares under BRK.B, which have substantially fewer voting rights and a much lower price per share. Class B shares were created in 1996 to make Berkshire ownership more accessible to investors who could not afford a Class A share.

Berkshire is a diversified holding company led for decades by Warren Buffett. Its businesses and investments have included insurance, railroads, utilities, manufacturing, retail, and large stakes in publicly traded companies. That broad portfolio makes Berkshire different from a focused technology company, even though it is often included among the world’s most valuable public businesses.

BRK.A is notable for its exceptionally high per-share price, but share price alone does not determine market capitalization. Market cap depends on both price and the number of shares outstanding.