Berkshire Hathaway stock (BRK.B) has a tokenised version, BRK.Bx, a blockchain based asset that represents Berkshire Hathaway Class B shares. Each BRK.Bx token is backed 1:1 by real Berkshire Hathaway Class B shares held in regulated custody. Berkshire Hathaway is a holding company based in Omaha, Nebraska, long led by Warren Buffett. It owns insurance businesses such as GEICO, the BNSF railroad, Berkshire Hathaway Energy and many other companies, and it holds a large stock portfolio. Berkshire is known for its long term approach to investing and does not pay a regular dividend. Holding BRK.Bx gives you indirect exposure to Berkshire Hathaway shares, but it is not the same as owning the underlying shares and does not come with shareholder rights.