Sergey is married and has a minor daughter. From 2018 to 2020, he worked at MAZ and the Minsk Design and Construction Technological Institute.
Zelenovsky joined Peleng in 2020. He worked in the machining department as a machine tool and CNC manipulator adjuster, holding a 4th-grade qualification.
The exact date of his arrest is unknown, but it occurred after a raid on Peleng that lasted several months, beginning in July 2024. People were subjected to polygraph tests, their phones were searched, and they were also summoned for conversations.
On December 13, 2025, he was released after another visit to Minsk by US President Donald Trump's special representative, John Cole, and taken to Ukraine.
