Navalny appeared by video link at the court in the city of Khimki, on the outskirts of Moscow. He continues to be held at the Matrosskaya Tishina detention center, in the northeast of the capital.
Navalny was placed on the country’s federal wanted list last month for violating terms of probation related to a years-old fraud case, which he dismisses as politically motivated.
Russia’s federal penitentiary service has asked that a court replace his suspended sentence with a prison term. If the request is granted, Navalny will likely be jailed for 3.5 years.
Russian law enforcement conducted searches Wednesday at Navalny’s Moscow apartment and his team’s headquarters, according to his aides.
The raids came as Navalny’s allies called for a second round of unsanctioned nationwide demonstrations, planned for Sunday, to demand the activist’s release from detention.