Sina Weibo's offering, whose lead underwriters were Goldman Sachs and Credit Suisse, raised $286 million, much of which will go to its parent. Weibo is controlled by Web portal company Sina Corp (SINA), whose stake falls to 56.9 percent from 77.
Alibaba, which paid $585.8 million for an 18 percent stake in the company last year, will increase its holding to 32 percent and will also appoint a director to the board.
I think after Alibaba IPO, Alibaba will buy out Weibo because its market will be at least $200 billions; so $8 billions WB is a peanut to Alibaba. Why? Because Weibo generated most revenue from Alibaba. This is why Alibaba has 30% stake in Weibo.