At least back in the early 2000s when I worked there, the expectation set by Roy was that once the legal issues versus Schroder, et al [1] were settled, that Thoughtworks would someday become a public trust. It would be very surprising to learn that the company was now being sold for the profit of an individual.
[1] http://caselaw.findlaw.com/de-court-of-chancery/1138774.html