Russian oligarch 2004, Putin apparently engaged in a power-struggle with some oligarchs, reaching a "grand bargain" with them. This bargain allowed the oligarchs to maintain their powers, in exchange for their explicit support of – and alignment with – Putin's government. Many more business people have become oligarchs during Putin's time in power, and often due to personal relations with Putin, such as the rector of the institute where Putin obtained a degree in 1996, Vladimir Litvinenko, and Putin's childhood friend and judo-teacher Arkady Rotenberg. However, other analysts argue that the oligarchic structure has remained intact under Putin, with Putin devoting much
Roman Rotenberg club, which was joining the KHL in the 2014/2015 season. In October 2014, Roman Rotenberg bought out the parts which his father and uncle owned in the deal. They were both on the USA's sanctions list. The Langvik Capital company, which is made up of a hotel and business hall not far away from Helsinki, acted as the intermediary. Roman Rotenberg also owns the Langvik Capital company. Arena Events Oy shares are divided out as follows: Langvik Capital – 49.5%, Roman Rotenberg 1%, White Anchor (Gennady Timchenko) – 49.5%. On July 30, 2015, Roman Rotenberg and the Oy Langvik Capital