Jack Mallers Aims to One-Up Michael Saylor With Tether and Cantor’s Help

Until recently, Jack Mallers was probably best known outside the hardcore crypto community for bursting into tears in 2021 while announcing that Bitcoin would be legal tender in El Salvador during the industry’s largest conference in Miami.

Now, four years later, Mallers is returning to the center stage at Bitcoin 2025 in Las Vegas on Thursday as the co-founder and chief executive officer of one of the most talked-about ventures in the digital asset world — Twenty One Capital Inc., an amalgamation of some of crypto and Wall Street’s deepest-pocketed players, who are coming together to accumulate Bitcoin.