It's very disputed and it'd be very difficult to find any solid evidence, but from what I understand he does. From the recent court proceedings it seems that the shares get passed around between companies a lot. He has Millhouse Capital in the UK, Millhouse LLC in Russia, Electus Investments in Cyprus, Aristus Holdings in Cyprus, Lanebrook in Cyprus, Ervington Investments in Cyprus, Crispian Investments in Cyprus and many more