Japanese businessman Masayoshi Son has an estimated net worth of $17.7 billion as of May 2019. In addition to being the chairman of the Sprint Corporation, Masayoshi Son is known to be the current chief executive officer of SoftBank Mobile and Softbank, which he also founded. A well known philanthropist, Masayoshi Son is now considered Japan's second richest man.

On March 17, 2006,  SoftBank acquired Vodafone K.K. for $ 15.1 billion. Less than a month later, both companies announced plans to change the brand and company name. He now serves as CEO of Vodafone K. K.

Masayoshi Son was born on August 11, 1957 in Tosu, Saga Prefecture, Japan. He is an alumnus of University of California, Berkeley. He is married and has two children.