You really don't understand how this would benefit shareholders?????
The company gets $17 billion for the Japan holdings and a portion of Alibaba but still keeps 15% of Alibaba, which is valued conservatively at $32 billion. The company also keeps the core U.S. stuff which has to be worth at leat $6 billion, plus the $2 billion in cash.
In all, that makes the total worth of the company at around $30 billion -- or around $24 per share.
Or better yet, this gives Yang the money to get this thing private. He will have $20B in cash and annual cash flow of $1.3B and growing. He already has 10% in his control. So basically he needs to buy a billion shares. Guessing more shareholders would sell for low 20's. I would if offered today. That would get it off the market with little to no debt and he could partner with a PE to do this with no debt.