With the possibility of providing about $3 billion to Bain Capital, Apple Inc. is playing the role of kingmaker in the battle for Toshiba Corp.’s memory chip business.

Sprint Corp.'s resumed talks about a potential merger with T-Mobile US Inc., being held at the same time as discussions with cable companies, shows the lengths billionaire Masayoshi Son is taking to build scale for a wireless carrier facing increasing competition in the U.S. The ...

SoftBank Group Corp. is aiming to close the first round of investment in its planned $100 billion technology fund by the end of this month, giving Chief Executive Officer Masayoshi Son an enormous war chest to go on the hunt for deals, according to ...