The court found Dmitry Velichko, president of the Rosinkor investment company, guilty of taking some 278 million rubles (nearly $10 million) from the state's coffers. He was arrested in January 2005.
Also today, a Moscow court said it will hear a bankruptcy suit against Yukos on March 28. Foreign creditor banks filed the suit last week in an attempt to retrieve nearly $500 million.
The founder of Yukos, Mikhail Khodorkovsky, is currently serving an eight-year prison sentence for fraud and embezzlement. The trial against him was widely seen as an attempt by the Kremlin to end his political ambitions.