Konstantin Nikolaev Konstantin Nikolaev Konstantin Nikolaev () is a billionaire Russian businessman who is a co-owner of and , the largest private rail operator in Russia, CIS, and the Baltic states. He is a major investor in American Ethane and serves on its board. Late July 2018, his net worth was estimated at $1.2 billion. He allegedly is a financial supporter of Maria Butina. Through Igor Levitin, Alexey Mordashov, Arkady Rotenberg, Gennady Timchenko, and Alexander Voloshin, Konstantin Nikolaev is a partner and close associate of numerous persons in Vladimir Putin's inner circle. In 1996, Nikolaev, Nikita Mishin, Andrei Filatov, and Alexey Mordashov
Arkady Rotenberg of Rotenberg's real estate, including four villas in Sardinia and Tarquinia, and a hotel in Rome. The Russian State Duma then proposed a bill, known as the Rotenberg Law, allowing sanctioned Russians to get compensated by the state, but it was declined. Rotenberg's personal wealth has been estimated in 2018 at $3.1 billion. He was formerly married to his second wife Natalia Rotenburg, who is about 30 years his junior. They were divorced about 2015 in the U.K. While the financial details of the divorce are private, the agreement includes division of the use of a £35 million Surrey mansion