Which investment company has Warren Buffett as its longtime chairman and uses the ticker BRK.A?

Berkshire Hathaway is the investment company whose longtime chairman is Warren Buffett and whose Class A shares use the ticker BRK.A.

Berkshire Hathaway began as a textile manufacturing company formed through the 1955 merger of Berkshire Fine Spinning Associates and Hathaway Manufacturing Company. Buffett began buying Berkshire shares in the 1960s and eventually transformed it into a diversified holding company.

The group owns or invests in businesses spanning insurance, rail transportation, utilities, energy, manufacturing, and consumer products. Its insurance operations, especially the reinsurance business, provide capital that Berkshire can invest across its portfolio.

Berkshire’s Class A shares are famous for their unusually high per-share price, while Class B shares were created in 1996 at a much lower price for more investors. Share price alone does not determine market capitalization: the number of shares outstanding also matters. BRK.A and BRK.B represent the same parent company but have different voting and economic characteristics.