S ergei Sudarikov is a Russian financier who has built a significant fortune in the country's investment and asset management sector. He is the main shareholder of the Region Group of companies, a diversified investment holding with interests spanning asset management, pension funds, brokerage, and real estate. Sudarikov is a veteran of the Russian financial markets, having begun his career in the 1990s.

His company, Region, grew into a major player by managing large pools of capital, including significant non-state pension funds, and by participating in major debt and equity market transactions. Sudarikov is known for his close ties to some of Russia's largest state-owned companies, particularly the oil giant Rosneft, whose pension funds his group has managed. In recent years, he has significantly expanded his financial empire by acquiring other asset management firms and brokerages, consolidating his position as a key figure in Russia's non-banking financial sector.