Which company is Warren Buffett’s investment conglomerate?

Berkshire Hathaway is Warren Buffett’s investment conglomerate.

Berkshire Hathaway is a holding company led for decades by Warren Buffett. Its businesses and investments span insurance, rail transport, energy, manufacturing, retail, and large stakes in publicly traded companies.

The company began as a textile manufacturer formed through the 1955 merger of Berkshire Fine Spinning Associates and Hathaway Manufacturing. Buffett acquired control in the 1960s and gradually transformed it into a diversified holding company after the textile operations declined.

Berkshire is unusual among giant public companies because it has two major share classes, with Class A shares carrying far more voting and economic value per share than Class B shares. Its market capitalization reflects both operating subsidiaries and an extensive investment portfolio. Berkshire’s Class A ticker is BRK.A and its Class B ticker is BRK.B.