Мамаев Сергей Олегович
Мамаев Сергей Олегович
- Date of birth: 11.03.1980
- Article of the Criminal Code: 282.2 pt.2
- Form of repression: deprivation of liberty, detention
- Pursuit stage: Appeal Process
- Sentence: 2 years and 8 months in a penal colony
- Date of sentencing: 16/02/2026
- Current location: ФКУ СИЗО-1 УФСИН России по Республике Марий Эл
- Lists of persecuted: List of political prisoners (excluding those persecuted for religion)
Mamaev Sergei Olegovich was born on March 11, 1980, lived in the city of Yoshkar-Ola, Mari El Republic, civil activist.
He was sentenced to 2 years and 8 months in a penal colony under Part 2 of Article 282.2 of the Criminal Code of the Russian Federation ("Participation in the activities of a public association or other organisation in respect of which a court has made a decision that has entered into legal force to liquidate or prohibit activities in connection with the implementation of extremist activity") of supporting one of the organisations of Alexei Navalny's supporters.
Deprived of liberty since July 22, 2025.