Mourad Haroutunian and Jonathan Browning report:

[…]Halawani said in a telephone interview, adding that Alwaleed and Kingdom Holding bought the shares from founding shareholders. “I expect Twitter does not need further funding before going public.”

and

In a separate interview with Al Arabiya, Halawani said Twitter will probably hold an IPO in two years.

So we can then safely assume that Twitter loses about $150 million a year… right?