"Altimo filed today a petition to unfreeze the VimpelCom shares it owns," the company said on Tuesday in a statement.
On Monday, the Omsk arbitration appeals court in southwestern Siberia arrested VimpelCom shares owned by Altimo and Telenor on a lawsuit from a VimpelCom minority shareholder, the Farimex company.
VimpelCom's main shareholders are Altimo, the telecoms arm of Russia's Alfa Group, and Norway's Telenor. The latter owns 29.9% of voting shares.
Telenor East Invest and Altimo are the defendants in the Farimex suit. Farimex accuses the main VimpelCom shareholders of hindering VimpelCom's entry into Ukraine's cellular communications market. Farimex demanded that they pay $3.8 billion to the operator.
On August 16, a West Siberian arbitration court granted a Farimex suit to exact $2.824 billion from Telenor and ordered the Norwegian company to pay $16,850 in court expenses.
In September, Telenor and VimpelCom board members affiliated with the Norwegian company filed appeals to the Omsk court.
VimpelCom, which operates under the Beeline brand, provides services in Russia, Ukraine, Uzbekistan, Tajikistan, Kazakhstan, Armenia and Georgia.
