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

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

Berkshire Hathaway is a diversified holding company led for decades by investor Warren Buffett. Its Class A shares trade under the symbol BRK.A, while its more widely accessible Class B shares use BRK.B. Class A shares carry substantially greater voting power and were designed to preserve a long-term ownership structure.

The modern Berkshire grew from a struggling textile manufacturer into a holding company that owns or invests in businesses across insurance, railroads, utilities, manufacturing, and consumer products. Berkshire’s insurance subsidiaries, including GEICO and General Re, provide much of the capital that supports its investment activities.

BRK.A is famous for its very high per-share price because Berkshire has never carried out a conventional stock split on that class. The lower-priced Class B shares were created in 1996, giving smaller investors a practical way to buy exposure to the company.