Mamaev Sergey Olegovich

Case Summary

Sergey Mamaev, a civil activist from Yoshkar-Ola, is accused of supporting an organization associated with Alexei Navalny. He has been detained since July 22, 2025, facing charges related to participation in an extremist organization.

Charges (1)

1. Participation in the activities of a public association or other organization in respect of which a court has adopted a decision that has entered into legal force on liquidation or prohibition of activities in connection with the implementation of extremist activities

Criminal Code Articles (1)

Key Facts (4)

• Born March 11, 1980
• Civil activist
• Accused of supporting Navalny's organization
• Detained since July 22, 2025

Legal Timeline